Veterinary · Clinical · also Integrative Veterinary Medicine (proposed MSVE revision course), Mriga Ayurveda, TCVM
Traditional and complementary animal medicine: ethno-veterinary practice, Ayurveda for animals, homeopathy and traditional Chinese veterinary medicine, and how to judge their evidence and regulation.
In the exams: China national exam: TCVM is 15 of 100 marks on the clinical paper; proposed MSVE revision (not yet notified) adds an Integrative Veterinary Medicine course
Integrative and ethno-veterinary medicine is the study of the ways people heal animals outside, or alongside, conventional veterinary science. It has two halves. The first is ethnoveterinary medicine: the knowledge, skills, beliefs and practices that farmers, pastoralists and local healers use to keep their animals healthy, documented and examined with the methods of anthropology, botany and epidemiology. The second is the organised traditional and complementary systems that have their own texts and schools: Ayurveda applied to animals (Mriga Ayurveda), homeopathy, and traditional Chinese veterinary medicine (TCVM), with its acupuncture and herbal formulas.
It matters in practice because most of the world's livestock keepers use traditional remedies first and call a veterinarian later, if at all; because companion-animal owners ask for acupuncture, herbs or homeopathy and deserve honest answers on evidence, safety and law; and because healers' plants are genuine leads for drugs and feed additives, which raises questions of quality, regulation and fair benefit-sharing. Drug resistance and organic farming rules sharpen all three.
This manual takes one consistent position: every claim is labelled by the strength of the evidence behind it. Each remedy is labelled tradition only, in vitro, experimental or trial-supported, as defined in the chapter on medicinal plants. Traditional use is a reason to study a remedy, not proof that it works. No doses are given, because for almost all of these products no validated, species-specific dose exists.
The subject is examined directly in China, where TCVM carries 15 of the 100 marks of the clinical paper of the national practising veterinarian examination, and it is part of the proposed revision of India's minimum standards of veterinary education, which adds an Integrative Veterinary Medicine course that had not been notified at the time of writing. Elsewhere it appears indirectly: as plant toxicology, as professional conduct when a client asks for an unproven therapy, as organic-farming rules, and as the law on who may treat animals.
Ethnoveterinary medicine is the body of local knowledge, skills, practices, beliefs, practitioners and social structures concerned with the health and healthy husbandry of animals. The definition most often cited was framed by the anthropologist Constance McCorkle in the 1980s, and the field grew through the 1990s with the work of McCorkle, Evelyn Mathias and Tjaart Schillhorn van Veen, whose edited volume Ethnoveterinary Research and Development (1996) set its agenda. The word 'ethno' signals that the knowledge is understood from inside a culture: how a community names diseases, explains their causes, chooses remedies and decides who may treat.
It is much wider than herbal remedies: it includes local disease classification, bone-setting and obstetric help, management such as grazing choices, quarantine and herd movement, ritual, and the social roles of healers. Some is sound, some harmless, some harmful, and much untested.
Ethnoveterinary knowledge is mostly oral, local and held by livestock keepers themselves. Ayurveda, traditional Chinese medicine and homeopathy are codified systems with written texts, formal theory, schools and, in several countries, legal recognition. For oral knowledge the first problems are documentation and consent; for codified systems they are theory, evidence and regulation. 'Integrative veterinary medicine' means combining conventional medicine with complementary methods whose safety and effect have been judged; it does not mean accepting every traditional claim.
Ethnoveterinary knowledge is unevenly distributed. In many societies it is divided by gender and age: women often care for poultry, small ruminants and young or sick animals near the homestead and hold knowledge about them, while men in pastoral societies may hold more knowledge about cattle and camels on the range. Specialist healers, bone-setters and livestock traders hold deeper knowledge than ordinary keepers, and some knowledge is restricted to lineages or initiated people. A survey that interviews only male household heads will miss much of what women know. Knowledge is lost when young people migrate and grazing systems break down, and renewed when farmers experiment and borrow. Healers range from respected experts with long apprenticeships to sellers who mix market drugs into traditional preparations, sometimes unsafely, and community animal health workers who combine basic conventional training with local knowledge.
Pastoral societies in the Sahel and East Africa, such as Fulani, Maasai, Turkana and Somali herders, have detailed knowledge of livestock disease. They name many diseases precisely, and studies using participatory methods have found that herders' descriptions of diseases such as contagious bovine pleuropneumonia, trypanosomosis, East Coast fever and rinderpest matched veterinary diagnoses closely. Their management knowledge is often their most effective medicine: moving herds away from tsetse-infested areas in the wet season, avoiding pasture known to cause disease, isolating sick animals and using salt licks and mineral-rich soils.
Some pastoral groups practised a form of crude immunisation. Contagious bovine pleuropneumonia was 'inoculated' by inserting material from the lung of an infected animal into a cut on the face or tail of healthy cattle, a practice documented in West and East Africa. It gave some protection at the cost of severe local reactions and was later replaced by vaccination.
Plant use is wide, for wounds, diarrhoea, retained placenta, ectoparasites and worms. Harmful practices also occur, such as hot-iron firing for internal conditions. During the rinderpest eradication campaign, community animal health workers chosen by pastoral communities and trained in basic skills, often combining local knowledge with vaccination, reached herds that conventional services could not; rinderpest was declared eradicated worldwide in 2011.
India has one of the largest documented bodies of ethnoveterinary knowledge, partly because village healers coexist with the written Ayurvedic tradition. Remedies recorded in many Indian surveys include neem (Azadirachta indica) for wounds and ectoparasites, turmeric (Curcuma longa) on wounds and swellings, aloe (Aloe vera) for mastitis and wounds, and many local plants for diarrhoea, bloat, retained placenta and fractures. The National Dairy Development Board in India has promoted standardised ethnoveterinary preparations through dairy cooperatives for conditions such as mastitis and has reported reduced antibiotic use; these are field programme reports, and controlled trial evidence for most of the preparations remains limited.
In Nepal, Pakistan, Sri Lanka, Bangladesh and Southeast Asia, surveys record similar patterns: plant remedies for gastrointestinal and skin problems, smoke and ash for ectoparasites, and bone-setting. Harmful practices also occur, such as branding for bloat, pneumonia or lameness.
In the Andes, herders of llamas and alpacas use local plants for diarrhoea, mange and wounds and have detailed knowledge of altitude, pasture and breeding. Surveys in Mexico and Brazil document large pharmacopoeias shared with human folk medicine.
Europe is not an exception. Surveys in Italy, Spain, Switzerland, Austria and the Balkans have documented living ethnoveterinary knowledge in mountain farming, with plants such as chamomile, St John's wort, arnica and wormwood used for wounds, digestive problems and udder problems. European studies are good models of rigorous vouchers and quantitative indices. Across regions, local disease names rarely map one-to-one onto biomedical diagnoses, and remedies usually target signs rather than causes.
Ethnoveterinary medicine includes many non-plant practices, and the veterinarian should sort them by their likely effect. Practices consistent with conventional evidence include isolation of sick animals, avoidance of infected pastures or vector zones, manual removal of ticks, splinting fractures, assisting difficult births with clean hands, and giving vegetable oil to cattle with frothy bloat, which matches the conventional use of oils and surfactants as antifoaming agents.
Amulets and many rituals cause little direct harm but may delay care. Harmful practices include hot-iron firing, cutting nostrils or ears to 'release' disease, smearing engine oil or pesticides on skin, and drenching that causes aspiration pneumonia.
A useful field approach, used widely in community programmes, is to classify each practice as helpful, harmless or harmful. Helpful practices can be encouraged, harmless ones respected while effective care is ensured, and harmful ones discouraged with a clear explanation and an alternative. The classification must be honest: a practice is called helpful only if there is evidence, not because it is popular.
Documentation begins with a clear question: which species, which conditions, which community and why. Random or stratified sampling of households gives a picture of general knowledge; purposive or snowball sampling of key informants, such as healers and experienced herders, gives depth. Most good studies use both and say which informant said what.
Field methods include semi-structured interviews, free-listing (asking informants to list every remedy or disease they know), key-informant interviews, focus-group discussions, field walks in which informants show and collect the plants they use, and direct observation of treatment. Participatory methods from rural appraisal and participatory epidemiology, such as proportional piling, matrix scoring and seasonal calendars, let communities rank diseases and remedies by their own criteria. A remedy record should include the local name, the plant part, how it is prepared, the route, the species, the condition treated in local and biomedical terms, who recommended it and how often it is used. Avoid leading questions, cross-check reports between informants, and interview in the local language, because disease and plant names are easily mistranslated.
A remedy record is useless if the plant is wrong. Local names vary between villages, one name may cover several species, and one species may have several names. The standard is a voucher specimen: a pressed, dried sample of the plant, ideally with flowers or fruit, collected with the informant, labelled with location, date, collector and local name, identified by a trained taxonomist and deposited in a recognised herbarium with an accession number so that others can check it.
The accepted scientific name should be checked against a current taxonomic database, because plant names change as taxonomy is revised. Market samples, dried roots and powders are hard to identify by appearance alone; microscopy, chemical fingerprinting by thin-layer chromatography and DNA barcoding with standard regions such as rbcL, matK and ITS2 help to authenticate them. Surveys that give only a common name, or no voucher, cannot be relied on.
Several indices turn interview data into comparable numbers. They measure how much agreement there is among informants, which helps choose plants for laboratory testing. They do not measure efficacy.
The use value (UV) of a species is the total number of use reports for that species divided by the number of informants: UV = ΣUi / N. A plant cited for 45 uses by 30 informants has a UV of 1.5. The relative frequency of citation (RFC) is the number of informants who mention the species divided by the total number of informants: RFC = FC / N, ranging from 0 to 1.
The informant consensus factor (ICF), also called the factor of informant consensus, is calculated for a category of ailment: ICF = (Nur − Nt) / (Nur − 1), where Nur is the number of use reports in the category and Nt is the number of taxa used for it. ICF approaches 1 when many informants use a few species for that category, and approaches 0 when informants use many different species with little agreement. If 48 use reports for gastrointestinal disease name 9 species, ICF = 39 / 47 = 0.83.
The fidelity level (FL) expresses how strongly a species is associated with one ailment: FL = (Np / N) × 100, where Np is the number of informants citing the species for that ailment and N the number citing it for any purpose. If 18 of 24 informants who mention a plant use it for diarrhoea, FL is 75%. High consensus is a good reason to test a plant, but popular remedies can still be ineffective or toxic.
Traditional knowledge belongs, in an ethical and increasingly a legal sense, to the people who hold it. The Convention on Biological Diversity (1992) recognised states' sovereign rights over their genetic resources and required that access be subject to prior informed consent and mutually agreed terms, with fair and equitable sharing of benefits. The Nagoya Protocol on Access and Benefit-sharing, adopted in 2010 and in force since 2014, made these obligations more concrete, including for traditional knowledge associated with genetic resources. A 2024 World Intellectual Property Organization treaty requires patent applicants to disclose the origin of genetic resources and associated traditional knowledge.
National laws implement these rules. India's Biological Diversity Act 2002 created the National Biodiversity Authority, State Biodiversity Boards and local Biodiversity Management Committees, which prepare People's Biodiversity Registers. India also built the Traditional Knowledge Digital Library, which records codified traditional knowledge in formats patent examiners can search.
Biopiracy means taking genetic resources or traditional knowledge without consent or benefit-sharing, often through patents. A United States patent on the use of turmeric for wound healing was revoked in 1997 after India's Council of Scientific and Industrial Research showed prior art in traditional texts. A European patent on a neem-based fungicide was revoked after opposition and the decision was upheld on appeal in 2005. In South Africa, a benefit-sharing agreement was negotiated between the San people and a research council over Hoodia. Researchers should obtain community and individual consent, return results and agree benefit-sharing in advance, following codes such as the International Society of Ethnobiology Code of Ethics.
Every plant remedy should be placed on an evidence ladder. At the bottom is tradition only: the plant is used and reported, but no one has tested it. Next is in vitro evidence: an extract kills larvae, inhibits bacteria or repels ticks in a dish or plate. Then come experimental studies in laboratory animals or small uncontrolled field studies. Next are controlled trials in the target species, ideally randomised, blinded and with a placebo or standard-treatment control. At the top are systematic reviews of several good trials.
In vitro results often fail in the animal. Concentrations that work in a dish may never be reached in the gut or blood; the rumen may degrade compounds; absorption may be poor; and the solvent used in the laboratory, such as ethanol or dimethyl sulfoxide, may itself have effects unless a solvent control is included. Conversely, a plant with no in vitro activity may act in the animal through a metabolite. So in vitro activity is a reason to run a trial, not a conclusion.
Gastrointestinal nematodes of sheep and goats, especially Haemonchus contortus, are now resistant to several anthelmintic classes in many countries, so plant anthelmintics are much studied.
The best-supported group is forage legumes rich in condensed tannins, such as sainfoin (Onobrychis viciifolia), sulla (Hedysarum coronarium) and birdsfoot trefoil (Lotus corniculatus). In vitro studies and controlled feeding trials in sheep and goats have shown reductions in faecal egg counts or worm burdens in several studies, but the effect is variable, partial and depends on the tannin content and the parasite species. They are best described as trial-supported as part of integrated control, not as a replacement for effective anthelmintics.
Papaya (Carica papaya) latex and seeds contain cysteine proteinases that damage the nematode cuticle in vitro and in laboratory rodent models, and some small trials in livestock have shown effects; evidence in target species is limited and inconsistent. Neem leaves and seed extracts show in vitro activity, but controlled trials in small ruminants have given inconsistent or negative results. Garlic, pumpkin seed and many local plants are used by tradition and have in vitro data at most. Tobacco (Nicotiana tabacum) has long been used as a traditional anthelmintic and ectoparasiticide; nicotine is toxic and the margin of safety is narrow, so it should not be promoted.
For wounds and skin, turmeric, aloe, neem and honey are among the most widely used. Turmeric extracts and curcumin have anti-inflammatory and antimicrobial activity in vitro and in laboratory animal wound models; controlled clinical trials in livestock are scarce. Aloe gel has laboratory and some clinical evidence in human wound care; veterinary trial evidence is limited. Honey is the best supported of this group: its antibacterial activity is well characterised and medical-grade honey is used in conventional wound care in people and animals, though veterinary trials remain small.
For mastitis, many plant preparations are used topically or as intramammary infusions. Most have in vitro antibacterial data and field reports; few have been tested in randomised controlled trials with bacteriological cure as the outcome, and none can be assumed to replace an effective antimicrobial for a severe clinical case. For diarrhoea, astringent tannin-rich barks and leaves are used widely; most remain tradition-only or in vitro.
Ectoparasite remedies include neem oil, plant smoke and ashes. Some plant extracts and essential oils have acaricidal activity in vitro and in small trials, but variable composition and skin toxicity are problems, and several essential oils are toxic to cats.
Phytogenic or botanical feed additives are plant products added to feed or water, such as oregano oil and its phenols carvacrol and thymol, cinnamaldehyde, garlic compounds, capsaicin and saponin-rich extracts. They grew in importance after the European Union banned antibiotic growth promoters from 1 January 2006 and other countries restricted them.
Trials show that some change gut microbiota or reduce rumen methane experimentally, but effects on growth and feed efficiency are inconsistent between trials. In the European Union such products enter the market as feed additives, which requires an authorisation and an assessment of safety and, for zootechnical claims, of efficacy; they cannot claim to treat or prevent disease without being authorised as veterinary medicines.
Many of the most potent poisons known to veterinary toxicology are plants, and some are used as remedies. Pyrrolizidine alkaloids in Senecio, Crotalaria, Heliotropium, Echium and comfrey (Symphytum) cause cumulative liver damage with megalocytosis and fibrosis; poisoning may appear weeks or months after exposure. St John's wort (Hypericum perforatum) contains hypericin and causes primary photosensitisation. Lantana camara causes cholestatic liver damage and secondary, hepatogenous photosensitisation in ruminants.
Onions and garlic (Allium species) contain sulfur compounds that cause oxidative damage to red cells, Heinz body formation and haemolytic anaemia; cats and dogs are especially sensitive, and garlic sold as a 'natural' flea or worm remedy for pets has caused anaemia. Tea tree oil applied undiluted or in large amounts has caused weakness, ataxia and tremors in cats and dogs, and pennyroyal oil, used as a traditional flea remedy, contains pulegone, which has caused fatal liver necrosis in dogs. Cats are particularly at risk from phenolic compounds and many essential oils because their capacity for glucuronide conjugation is low.
Other remedies contain cardiac glycosides (oleander, Calotropis latex), tropane alkaloids (Datura), toxalbumins (castor and Abrus seed) or nicotine, and plant content varies with soil, season and part.
Some herbs in traditional Chinese and other formulas have caused serious harm in people and animals. Aristolochia and related plants contain aristolochic acids, which cause progressive kidney fibrosis and urothelial cancer; substitution of Aristolochia for another herb with a similar name caused an outbreak of kidney failure in people in Belgium in the early 1990s. Aconite (Aconitum) roots contain aconitine, which opens sodium channels and causes fatal arrhythmias; traditional processing by prolonged boiling reduces toxicity but does not remove the risk. Ephedra contains ephedrine and related sympathomimetics.
Some Ayurvedic and other traditional preparations deliberately include metals or minerals, such as mercury, lead and arsenic compounds in certain rasa shastra preparations, and others are contaminated accidentally. Studies of products sold in the United States found that about one in five tested Ayurvedic products contained detectable lead, mercury or arsenic. Cinnabar (mercuric sulfide) and realgar (arsenic sulfide) appear in some Chinese preparations. Undeclared conventional drugs, such as corticosteroids or non-steroidal anti-inflammatory drugs, have also been found in herbal products.
Herbal products can change the effect of conventional drugs. St John's wort induces cytochrome P450 3A4 and P-glycoprotein in people, lowering blood levels of many drugs, including ciclosporin and some anticonvulsants; species differences in drug metabolism mean the effect in animals cannot be predicted exactly, but the risk must be assumed. Liquorice (Glycyrrhiza) contains glycyrrhizin, whose metabolite inhibits 11-beta-hydroxysteroid dehydrogenase type 2 and produces a mineralocorticoid-excess state with sodium retention, hypokalaemia and hypertension; it can worsen hypokalaemia caused by corticosteroids or loop diuretics.
Garlic and ginkgo have antiplatelet effects that matter before surgery. Many owners do not report herbal products unless asked directly, so the history must ask about every product, supplement, oil and home remedy, including those applied to the skin.
In a food-producing animal, any substance given can leave residues in meat, milk, eggs or honey. For conventional veterinary medicines, residues are controlled through maximum residue limits (MRLs) set by Codex Alimentarius and national or regional authorities, and through withdrawal periods on the label. Most traditional preparations have no MRL assessment and no validated withdrawal period, so their residue behaviour is unknown.
Some plant compounds are known residue hazards. Pyrrolizidine alkaloids pass into milk, eggs and honey. Heavy metals in mineral-based preparations accumulate in liver and kidney. Plant materials can carry pesticide residues or mycotoxins such as aflatoxins, and aflatoxin B1 fed to dairy animals appears in milk as aflatoxin M1. Undeclared conventional drugs in herbal products bring their own residues without any withdrawal warning.
A claim that a herbal product has 'no withdrawal period' should never be accepted without evidence. In the European Union, a pharmacologically active substance may be given to food-producing animals only if it is listed in the table of allowed substances (many plant substances are listed with 'no MRL required'); other jurisdictions differ and national rules apply.
Ayurveda is the classical medical system of the Indian subcontinent, and its application to animals is often called Mriga Ayurveda or Pashu Ayurveda. Animal healing appears in Vedic literature, and specialised texts developed for the animals most valued by kings and armies: horses and elephants.
Shalihotra is the name traditionally attached to the earliest Indian treatises on horses, and he is often called the father of Indian veterinary science; texts on horse care and treatment in his name, collectively called Ashvayurveda, cover breeds, conformation, management and disease. Palakapya is the sage traditionally credited with the Hastyayurveda (also called Gajayurveda), a large treatise on elephants presented as a dialogue with a king of Anga. Gavayurveda deals with cattle. In the Mahabharata, the Pandava brothers Nakula and Sahadeva are described as experts on horses and cattle respectively, and later works on horse medicine are attributed to Nakula.
The emperor Ashoka, in the third century BCE, recorded in his second rock edict that he had arranged medical treatment for both people and animals and had medicinal plants planted where they were lacking. Indian veterinary historians often cite this as one of the earliest records of state-provided veterinary care. Dates and authorship of the classical texts are debated.
Ayurvedic theory is the same for people and animals. All matter is formed from five elements (panchamahabhuta): earth, water, fire, air and space. In the body these act through three doshas: vata (movement, governed by air and space), pitta (transformation and heat, governed by fire and water) and kapha (structure and cohesion, governed by earth and water). Health is balance of the doshas, proper function of digestive fire (agni) and healthy formation of the seven tissues (dhatus): rasa, rakta, mamsa, meda, asthi, majja and shukra. Disease is imbalance, often with accumulation of incompletely digested material (ama).
Drugs are described by taste (rasa, of which there are six: sweet, sour, salty, pungent, bitter and astringent), quality (guna), potency (virya, heating or cooling), post-digestive effect (vipaka) and a specific action that does not follow from the other properties (prabhava). Treatment combines diet and management, herbal and mineral preparations, and cleansing procedures. These are explanatory concepts within a traditional framework, not physiological measurements or tested mechanisms.
In India, Ayurvedic and other polyherbal veterinary preparations are widely sold for digestion, liver support, appetite, retained placenta, mastitis, wounds and fertility. Many are licensed under the Ayurvedic, Siddha and Unani provisions of the Drugs and Cosmetics Act 1940, whose definition of a drug includes products for animals. Quality standards are set in the Ayurvedic Pharmacopoeia of India, and manufacturers are expected to follow good manufacturing practice.
Evidence is the weak point. Many products are mixtures of five to twenty or more plants; published studies are often small, open, uncontrolled or sponsored, with outcomes measured soon after treatment. Some individual ingredients have reasonable laboratory data, but this does not show that a mixture works at the dose given. A practitioner should therefore describe most polyherbal veterinary preparations as experimental or tradition-supported unless a controlled trial in the species and condition exists.
Safety needs equal attention. Mineral-containing preparations may contain heavy metals; plant ingredients may be misidentified or adulterated; and in food animals residues and withdrawal are unknown. The proposed revision of India's minimum standards of veterinary education would bring integrative medicine, including Ayurveda, into the curriculum, which makes it more important that graduates can judge these products critically.
Homeopathy was founded by the German physician Samuel Hahnemann, who set out the principle in 1796 and published the Organon of Medicine in 1810. Its central principle is the law of similars, 'like cures like' (similia similibus curentur): a substance that causes symptoms in a healthy person is believed to cure similar symptoms in a sick one. Remedies are 'proved' on healthy volunteers and matched to the patient's whole symptom picture.
The second principle is potentisation: the substance is diluted serially, with vigorous shaking (succussion) at each step, and homeopaths hold that greater dilution increases potency. The starting extract is the mother tincture. On the decimal scale (D or X), each step is a 1 in 10 dilution; on the centesimal scale (C), each step is 1 in 100; there is also a fifty-millesimal (LM or Q) scale.
Isopathy, which uses preparations of the disease agent or product itself, was promoted in the 1830s by Wilhelm Lux, a veterinarian in Leipzig. Nosodes are homeopathic preparations made from diseased tissue, discharges or cultured organisms, and some practitioners offer them as 'homeopathic vaccines'. They contain no immunising quantity of antigen and there is no reliable evidence that they protect animals against infectious disease.
Dilution arithmetic shows why homeopathy conflicts with chemistry. A 1C preparation is diluted 1 in 100, so the concentration falls by a factor of 10 to the power 2. A 6C preparation is diluted by 10 to the power 12, a 12C by 10 to the power 24 and a 30C by 10 to the power 60. A 1X or D1 preparation is 1 in 10, so 4X or D4 equals 1 in 10,000, the same as 2C.
Avogadro's number, about 6.02 × 10 to the power 23, is the number of molecules in one mole of a substance. If one started with a full mole of a substance and diluted it to 12C, the expected number of molecules remaining would be 6.02 × 10^23 × 10^−24, about 0.6, so it is likely that not one molecule remains; in practice the starting quantity is far smaller than a mole, so the limit is passed earlier. Remedies commonly sold at 30C or 200C therefore contain, in all probability, none of the original substance. Proposed explanations such as a 'memory' of water have no accepted physical basis.
Systematic reviews of placebo-controlled trials of homeopathy in animals have found few trials with a low risk of bias. A review of randomised placebo-controlled veterinary trials by Mathie and Clausen (2014) concluded that the small number of reliable trials did not allow firm conclusions that homeopathy is effective for any condition. Large reviews in human medicine, such as the 2015 review by Australia's National Health and Medical Research Council, found no health condition for which there was reliable evidence that homeopathy was effective.
Animal studies are sometimes said to prove homeopathy because 'animals cannot respond to placebo'. This is wrong. Owners and veterinarians assess the outcome, and their expectations bias the assessment (the caregiver placebo effect); animals also respond to handling and attention; and conditions such as diarrhoea and mild mastitis often resolve on their own.
In 2017 the Royal College of Veterinary Surgeons in the United Kingdom issued a statement that homeopathy exists without a recognised body of evidence and is not based on sound scientific principles, that complementary treatments should be used only alongside evidence-based treatments and not in place of them, and that animal welfare must come first. Other veterinary bodies have similar positions. The ethical risk is clear: a nosode used instead of vaccination, or a homeopathic remedy used instead of an antimicrobial in a severe infection, can cause disease and suffering.
Laws treat homeopathic products differently from their evidence. In the European Union, Regulation (EU) 2019/6 on veterinary medicinal products provides a simplified registration procedure for homeopathic veterinary products that are given by a route described in the European Pharmacopoeia, are sufficiently diluted to guarantee safety (not more than one part per 10,000 of the mother tincture) and carry no therapeutic indication on the label. Registration therefore does not certify efficacy. For food-producing species, the active substances must also satisfy residue rules.
The EU organic production rules prefer phytotherapeutic and homeopathic products, and trace elements, over chemically synthesised allopathic medicines including antibiotics, provided their therapeutic effect is effective for the species and condition. They do not override the duty to treat, and an animal must receive conventional treatment when needed to avoid suffering. Other organic systems differ: the United States National Organic Program does not allow animals treated with antibiotics to be sold as organic, but it requires producers not to withhold treatment to preserve organic status.
In India, homeopathy is a recognised system of medicine for people, and homeopathic products are regulated under the Drugs and Cosmetics Act. In the United Kingdom, only registered veterinary surgeons, with limited exceptions such as owners treating their own animals, may treat animals, so lay homeopaths may not treat other people's animals.
Traditional Chinese veterinary medicine (TCVM; in Chinese, zhong shou yi) has a written history of more than two thousand years. Bole, also known as Sun Yang, of the Spring and Autumn period, is remembered as a judge of horses and is associated with early texts on horse assessment and treatment.
The best-known classical veterinary text is the Yuan Heng Liao Ma Ji (Yuan Heng's Therapeutic Treatise of Horses), compiled by the brothers Yu Benyuan and Yu Benheng and published in 1608 in the Ming dynasty, with sections later added on cattle and camels. In the twentieth century, TCVM was integrated into veterinary education in China, and it is now a compulsory subject in Chinese veterinary degrees and part of the national practising veterinarian examination, where it forms 15 of 100 marks of the clinical paper.
TCVM theory views the body as a balance of opposing and complementary forces, yin and yang. Yin is associated with cold, rest, substance and the interior; yang with heat, activity, function and the exterior. Disease is imbalance.
The five phases (wu xing) are wood, fire, earth, metal and water. In the generating (sheng) cycle each phase produces the next: wood generates fire, fire generates earth, earth generates metal, metal generates water, and water generates wood. In the controlling (ke) cycle each phase restrains the phase two steps ahead: wood controls earth, earth controls water, water controls fire, fire controls metal, and metal controls wood. Each phase is linked to organs: wood with liver and gallbladder, fire with heart and small intestine, earth with spleen and stomach, metal with lung and large intestine, and water with kidney and urinary bladder.
The organs are divided into zang (yin, 'solid', storing organs: heart, liver, spleen, lung, kidney, with the pericardium) and fu (yang, 'hollow', transforming organs: gallbladder, stomach, small intestine, large intestine, urinary bladder and the triple burner, san jiao). The 'organs' of TCVM are functional systems, not the anatomical organs of the same name. Qi (vital energy), blood and body fluids circulate through channels or meridians; there are twelve regular channels and eight extraordinary vessels.
TCVM uses four diagnostic methods: inspection (including the tongue, posture and coat), listening and smelling, inquiry (history from the owner) and palpation (including the pulse, usually felt at the femoral artery in small animals, and palpation of acupoints). The findings are combined into a pattern rather than a single disease name.
The eight principles (ba gang) organise patterns into four pairs: yin and yang, exterior and interior, cold and heat, deficiency and excess. External causes are described as six pathogenic factors: wind, cold, summer-heat, dampness, dryness and fire. Internal causes include emotions and diet, and there are other causes such as trauma and parasites. Patterns are also described by zang-fu, by qi and blood, and by stage of disease. Two animals with the same biomedical diagnosis may receive different patterns and treatments, which is one reason TCVM trials are hard to design.
Acupuncture stimulates defined points on the body. Methods include dry needling, electro-acupuncture, aquapuncture (injection of a fluid such as vitamin B12 or saline at a point), moxibustion (warming with burning mugwort), haemo-acupuncture (bleeding at a point) and laser stimulation. Experimental studies show that needle stimulation can release endogenous opioids and other neurotransmitters and modulate pain pathways, and some analgesia in experimental models is reversed by naloxone; this supports a neurophysiological explanation for some acupuncture analgesia, independent of meridian theory.
Chinese herbal medicine uses single herbs and, more often, formulas. Herbs are described by nature (cold, cool, neutral, warm, hot), flavour (pungent, sweet, sour, bitter, salty) and the channels they enter. A formula has a structure of roles: the monarch (jun) herb addresses the main pattern, the minister (chen) supports it, the assistant (zuo) treats secondary signs or reduces toxicity, and the envoy (shi) harmonises or guides. Classical rules list combinations to avoid, the 'eighteen incompatibilities' and 'nineteen antagonisms'; for example, aconite is listed as incompatible with pinellia.
Tui-na is therapeutic massage; food therapy applies the same properties to diet. In China, Chinese herbal veterinary medicines are standardised in a dedicated volume of the national veterinary pharmacopoeia.
Evidence for veterinary acupuncture is mixed. A systematic review by Habacher, Pittler and Ernst (2006) of controlled veterinary acupuncture trials found that the evidence was not compelling enough to recommend or reject acupuncture for any condition in domestic animals. Since then, some small randomised studies have reported benefit, for example electro-acupuncture alongside standard care in dogs with thoracolumbar disc disease, and some trials in pain and gastrointestinal disorders, but samples are small and blinding is difficult. Overall, acupuncture for pain is best described as having limited trial support, plausible mechanisms and low risk when done by a trained veterinarian.
Acupuncture is not harmless: needles can cause infection, broken needles, pneumothorax over the chest, and delay in diagnosis of conditions such as fractures or tumours. Chinese herbal medicines carry the risks described earlier: toxic herbs, heavy metals, misidentification, adulteration with conventional drugs and herb-drug interactions. One success story shows what rigorous testing can achieve: artemisinin, isolated from Artemisia annua after study of traditional Chinese texts, became a standard antimalarial drug, and its discoverer Tu Youyou received the Nobel Prize in Physiology or Medicine in 2015.
The standard tools of evidence-based veterinary medicine apply to complementary therapies without special exemptions. A good clinical trial defines the population, intervention, comparison and outcome; randomises animals to treatment and control; conceals allocation; blinds owners, carers and assessors; uses a placebo or the current standard treatment as comparator; measures a clinically meaningful outcome with a valid tool; analyses all randomised animals; and reports results fully. Reporting checklists help: CONSORT for randomised trials (with an extension for herbal interventions), REFLECT for livestock trials and ARRIVE for laboratory animal experiments. Herbal trials must also report species, part, solvent, chemical markers and batch. Acupuncture trials struggle to find a credible sham. Individualised homeopathy or TCVM can be tested by letting the practitioner choose a remedy and then randomising animals to that remedy or placebo.
The GRADE approach rates certainty of evidence as high, moderate, low or very low, starting from trials and downgrading for risk of bias, inconsistency, indirectness, imprecision and publication bias. Most evidence for veterinary integrative therapies is low or very low certainty.
Many conditions get better on their own, and owners usually seek treatment when signs are worst; improvement afterwards is then expected by chance alone, a phenomenon called regression to the mean. Natural recovery of mild diarrhoea, many skin wounds and some clinical mastitis cases makes uncontrolled reports misleading.
The caregiver placebo effect is the tendency of owners and veterinarians to rate an animal as improved because they expect improvement. It has been demonstrated in trials of dogs with osteoarthritis, where a substantial proportion of owners of placebo-treated dogs reported improvement. Other biases include co-intervention (an antimicrobial given alongside the herb), confounding, selective reporting and publication bias. Absence of evidence is not evidence of absence, but the burden of proof rests on the person making the claim, especially when an effective conventional treatment exists.
If 30 of 50 cows recover with a herbal intramammary product and 24 of 50 recover with placebo, the cure proportions are 0.60 and 0.48; the absolute difference is 0.12, and the number needed to treat for one extra cure is 1/0.12 = 8.3, rounded up to 9. Whether this difference is real depends on its confidence interval, which with such small groups will be wide.
The relative risk compares risks between groups. If 10 of 40 calves fed a plant additive and 16 of 40 controls develop diarrhoea, the risks are 0.25 and 0.40, the relative risk is 0.625 and the relative risk reduction is 37.5%; the absolute risk reduction is 15 percentage points. Relative figures sound larger.
For anthelmintic studies, the faecal egg count reduction (FECR) is commonly calculated in one of two ways, which should be stated. Comparing a treated group with an untreated control group after treatment: FECR = 100 × (1 − T2/C2); if treated animals average 600 eggs per gram and controls 900, FECR = 33%. Comparing the same animals before and after treatment: FECR = 100 × (1 − T2/T1); from 1,500 to 1,050 eggs per gram is 30%. Conventional anthelmintics are judged against high thresholds set in guidelines of the World Association for the Advancement of Veterinary Parasitology, and plant products rarely reach them.
A herbal product is only as good as the plant material in it. Quality begins in the field with good agricultural and collection practices, described in World Health Organization guidance, covering correct species, cultivation or wild collection, harvest time, drying and storage. Identity is confirmed by macroscopic and microscopic examination, chromatographic fingerprinting (such as thin-layer or high-performance thin-layer chromatography) and, increasingly, DNA barcoding.
Purity tests look for foreign matter, moisture, ash, heavy metals, pesticide residues, microbial contamination and mycotoxins such as aflatoxins. Content is controlled by assay of marker compounds, which may be active constituents or simply characteristic chemicals used to check consistency. Pharmacopoeial monographs, such as those of the European Pharmacopoeia, the Ayurvedic Pharmacopoeia of India and the Chinese pharmacopoeias, set these standards for listed materials. Finished products should be made under good manufacturing practice with stability data. Common failures are species substitution, adulteration and batch-to-batch variation; prefer products with an identified manufacturer, batch number, declared composition and legal status.
Countries regulate herbal and complementary veterinary products in different ways, and the rules change, so the national authority must always be checked. Three general patterns recur.
In the first, any product that claims to treat or prevent disease in animals is a veterinary medicine and needs a marketing authorisation with evidence of quality, safety and efficacy, plus residue evaluation for food-producing species. The European Union follows this principle under Regulation (EU) 2019/6, with a simplified registration only for homeopathic products that make no therapeutic claim. Plant products without medical claims may instead be authorised as feed additives under the feed rules.
In the second, there is no special category for animal supplements. In the United States, the human dietary-supplement law does not apply to animals; animal products are legally foods or drugs, and the FDA Center for Veterinary Medicine uses enforcement discretion for many low-risk products without disease claims.
In the third, traditional systems have their own legal pathway. India regulates Ayurvedic, Siddha, Unani and homeopathic drugs under the Drugs and Cosmetics Act 1940, whose definition of drugs includes those for animals; China regulates Chinese herbal veterinary medicines as veterinary drugs, with standards in the national veterinary pharmacopoeia.
Regulation of practice is separate from regulation of products. In most countries the law reserves the diagnosis and treatment of animals to registered veterinarians, with defined exceptions. In the United Kingdom the Veterinary Surgeons Act 1966 restricts veterinary surgery to registered veterinary surgeons, with exceptions such as owners treating their own animals and certain physical therapies given on referral from a veterinary surgeon. In India, the Indian Veterinary Council Act 1984 restricts practice to registered veterinary practitioners, with exceptions for minor veterinary services by trained persons. In the United States, each state's practice act defines veterinary medicine, and many state definitions include acupuncture and other complementary treatments, so that non-veterinarians may perform them only within limits set by that state.
Professional bodies add guidance. The Royal College of Veterinary Surgeons expects complementary treatments only alongside evidence-based care, with informed consent and welfare first; the American Veterinary Medical Association holds that complementary approaches should meet the same standards of evidence and practice as conventional ones.
Organic standards influence the use of complementary products in food animals. In the European Union, organic regulation (EU) 2018/848 sets disease prevention through breed choice, husbandry and feeding as the first principle. When animals are ill, phytotherapeutic and homeopathic products and trace elements are preferred to chemically synthesised allopathic medicines, including antibiotics, provided they are effective for the species and condition; conventional medicines may be used under veterinary responsibility when needed to avoid suffering.
When a chemically synthesised allopathic medicine is used in organic livestock in the EU, the withdrawal period is twice the legal withdrawal period, with a minimum of 48 hours. Limits apply to the number of courses of such treatment per year, beyond which the animal or its products lose organic status. For example, a medicine with a 12-hour milk withdrawal would require 48 hours under these rules, because doubling gives only 24 hours and the minimum applies; a 10-day meat withdrawal would become 20 days.
The United States National Organic Program takes a different approach: animals treated with antibiotics cannot be sold as organic, but producers must not withhold treatment to keep organic status. Neither system's preference for complementary products is evidence that those products work; it reflects the policy goals of organic farming.
Integration starts with the animal, not the therapy. A sound approach has five steps. Take a complete history of every remedy, product and practice already used. Make a conventional diagnosis, because no traditional or complementary method justifies skipping diagnosis. Judge each traditional practice as helpful, harmless or harmful, with honest reference to evidence. Agree a plan with the owner that puts effective treatment first and includes complementary methods only where they are safe, legal and not displacing effective care. And record what was given, so that residues, interactions and outcomes can be traced.
Respect is part of competence. Dismissing a farmer's remedy as superstition closes the conversation and drives practices underground, where they cannot be monitored. Asking why a remedy is used, what is in it and how it is given reveals both useful knowledge and hidden risks, such as an undeclared antibiotic in a traditional mixture or a toxic plant at a high dose.
Consent is informed only if the owner understands, in plain language, the expected benefit, the strength of evidence, the risks, the cost and the conventional alternative, including when an option is unproven. Records should list the product or procedure, the batch where possible and that discussion. If an owner refuses effective treatment for a suffering animal, welfare comes first and professional guidance and welfare law apply. For food animals, the farmer must understand that milk or meat from an animal given an untested mixture has unknown residue safety. Participatory epidemiology and community animal health workers, framed by WOAH competency guidelines for veterinary paraprofessionals, show how local and conventional knowledge can be joined in practice.
Interest in traditional and plant remedies is closely linked to resistance. Integrated parasite management in small ruminants combines targeted selective treatment, refugia, grazing management, breeding for resistance and nutrition, and condensed-tannin forages can be one component. Plant products are not yet a reliable replacement for effective anthelmintics. For bacterial disease, the real alternatives to antibiotics are vaccination, biosecurity, hygiene and nutrition; plant 'antibiotic alternatives' should be judged by controlled trials in the target species, not by in vitro inhibition zones.
Integration also means not using complementary methods as a reason to delay antibiotics where they are needed. A cow with severe toxic mastitis, a dog with pyometra or a calf with septicaemia needs conventional treatment immediately. Complementary methods can sometimes support comfort or recovery alongside conventional care, but they do not replace it.
The place of integrative medicine in veterinary education varies widely. In China, traditional Chinese veterinary medicine is a compulsory subject in veterinary degrees, covering theory, diagnosis, acupuncture and herbal medicine, and it forms part of the national licensing examination. In India, the Minimum Standards of Veterinary Education 2016 remain in force; a proposed revision presented by the Veterinary Council of India includes a new course in Integrative Veterinary Medicine covering Ayurveda and homeopathy, but at the time of writing it had not been notified, so students should check its status.
In Europe, North America and Australasia, veterinary curricula are built on evidence-based medicine, and complementary therapies are usually taught, if at all, as electives or as part of teaching on evidence appraisal, pharmacology of herbal products, toxicology of plants and professional ethics. Postgraduate acupuncture and herbal courses certify training, not efficacy. Ethnoveterinary medicine appears in some African, Asian and Latin American curricula within extension, pharmacology or community animal health courses.
In China's national practising veterinarian examination, TCVM questions on the clinical paper test theory (yin-yang, five phases, zang-fu, qi and blood), diagnosis (four methods, eight principles, pathogenic factors), acupuncture points and techniques, and the properties and roles of herbs and formulas. Memorising cycles, organ associations and classifications is essential.
In India no catalogued exam lists integrative medicine as a named section; related content falls under the pharmacology and toxicology units of the published syllabi (plant poisons, herbal drugs), and the proposed Integrative Veterinary Medicine course would add it to the degree once notified. In licensing and professional examinations elsewhere, such as the RCVS Statutory Membership Examination, NAVLE and others, the subject appears as professional conduct (how to respond to a request for an unproven therapy), law (who may treat animals), toxicology (plants, essential oils, garlic and onion) and residue rules.
Good exam technique for this subject is to separate three questions: what the tradition says, what the evidence shows, and what the law requires. Many wrong options in well-written questions confuse these, for example by presenting a regulatory registration or an organic preference as proof of efficacy.
Learn the vocabulary of each system precisely, because exams test it: the five-phase cycles and organ links, the eight principles, the three doshas, the homeopathic dilution scales and the ethnobotanical indices. Practise the small calculations (ICF, fidelity level, dilution factors, NNT, faecal egg count reduction) until they are quick. Above all, learn to label every claim by its evidence level: tradition only, in vitro, experimental or trial-supported. Know the major toxic plants and the herbs that interact with drugs, because they appear in toxicology papers everywhere. When you meet a remedy in the field, ask what it is, why it is used and how it is given, and write it down.
In daily work you will see animals that have already received traditional remedies or supplements, so ask about every product, including oils and home remedies, in every history. Decide quickly whether anything given is toxic, interacts with your drugs or creates a residue problem in a food animal. When owners ask for acupuncture, herbs or homeopathy, explain the evidence honestly, never let a complementary method delay diagnosis or effective treatment, record consent, and check that what you recommend is legal in your country and for that species. In farm work, respect farmers' knowledge, encourage helpful practices such as isolation and good feeding, and discourage firing and other harmful ones.
Senior veterinarians shape policy and practice. You may advise a cooperative on whether to promote an ethnoveterinary mastitis programme, a regulator on how to classify botanical products, or an organic certifier on withdrawal rules. Insist on controlled evidence before programmes make claims, on quality standards for products, and on residue monitoring in food animals. Mentor younger colleagues to combine respect for local knowledge with scientific rigour, and to communicate with owners who distrust conventional drugs. When disputes arise over unproven therapies, use the professional body's guidance and put welfare first.
Research questions in this field are open and important: which ethnoveterinary remedies show reproducible effects in controlled trials, which plant compounds survive rumen metabolism and reach target parasites, how condensed tannins act against nematodes, and how to design blinded trials of acupuncture and individualised therapies. Good work needs voucher-based identification, chemically characterised extracts, solvent controls, appropriate statistics and reporting to CONSORT, REFLECT or ARRIVE standards. It also needs prior informed consent, mutually agreed terms and benefit-sharing under the CBD, the Nagoya Protocol and national biodiversity laws, and honest publication of negative results.
This manual teaches the frameworks of Mriga Ayurveda, homeopathy and TCVM, not their full materia medica: it does not list individual Chinese herbal formulas, acupuncture point locations or Ayurvedic preparations one by one, which China's licensing exam and specialist courses expect in detail. It gives no doses for any remedy, because validated species-specific doses rarely exist. The evidence summaries are for representative plants only; the literature on individual plants is large and of uneven quality and is not reviewed systematically here. Regulatory descriptions are general patterns; national rules on herbal veterinary products, withdrawal periods and who may practise change often and must be checked with the national authority. The status of India's proposed MSVE revision was unconfirmed at the time of writing. Exam weights for China come from a third-party preparation site.
Original practice questions written to the syllabus and pattern of the exams named in each question's examTags. They are not past papers and do not reproduce any board's questions. Questions with no examTags cover integrative and ethnoveterinary content that no catalogued exam lists as a named section; they serve the proposed Integrative Veterinary Medicine course and professional practice.
These notes are free to read here, with no account.
What the Laisha app adds:
Free for ten days, then a subscription. We would rather write that here than have you find it later.