EGEL Plus MVZ · Mexico · CENEVAL
Original practice questions written to the published syllabus · not past papersKeeping food of animal origin safe: milk and meat hygiene, ante- and post-mortem inspection, food-borne disease, HACCP, residues and MRLs, and food law.
In the exams: ICAR AICE-JRF core group 06; ICAR AIEEA-PG 13 (VPH & Epidemiology); EGEL Plus food safety 15 and food quality 11; SAVC Paper 3 VPH 30; RCVS SME production animal domain includes VPH
Mexico EGEL Plus MVZ (food safety 15, food quality 11)
Food safety systems, HACCP, microbiological quality of milk and meat, food-borne diseases and quality tests.
How our questions for EGEL Plus MVZ spread across the units of Milk & Meat Hygiene, Food Safety & Public Health. Difficulty: 7 easy, 34 medium, 16 hard.
| HACCP | 11 | |
| Post-mortem inspection and judgement of carcasses | 10 | |
| Milk hygiene | 9 | |
| Public health microbiology | 5 | |
| Ante-mortem inspection | 5 | |
| Food-borne infections | 5 | |
| Residues and maximum residue limits | 4 | |
| Milk-borne zoonoses | 3 | |
| Food-borne intoxications | 3 | |
| Food safety standards and legislation: Codex and national regulators | 2 |
Choose an answer, then open the working. Each explanation says why the right answer is right and why the others are not.
Under the EU rule that raw cow milk must not exceed 400,000 somatic cells/mL as a rolling geometric mean over three months, a farm's monthly results are 250,000, 300,000 and 700,000 cells/mL. What is the assessed value and is the farm compliant?
B. About 374,000 cells/mL; compliant
Geometric mean = cube root of (250,000 x 300,000 x 700,000) = 374,444 cells/mL, below 400,000, so compliant. The arithmetic mean (416,667) is the common error and would wrongly fail the farm; the rule is a geometric mean, which damps a single high month. A single result above the limit does not by itself breach a rolling-mean rule, and 300,000 is the median, which the rule does not use.
Further reading: Regulation (EC) No 853/2004, Annex III Section IX
A HACCP team scores hazards by likelihood (1 to 5) x severity (1 to 5) and treats a product of 8 or more as significant. Listeria recontamination at filling scores likelihood 3 and severity 4. What is the result?
B. Score 12: significant, so a control measure must be identified
3 x 4 = 12, above 8, so the hazard is significant and needs a control measure. Adding scores gives 7, which misapplies the matrix. A significant hazard is not automatically a CCP: the decision tree decides where it is controlled.
Apply the Codex CCP decision tree. Reception of dry packaging material, hazard: pathogens. Control exists (supplier approval); the step is not designed to eliminate the hazard; contamination is not reasonably likely to reach unacceptable levels. What is the outcome?
A. It is not a critical control point
Q1 yes, Q2 no and Q3 no: contamination is not expected to reach unacceptable levels here, so prerequisite programmes are enough. Final product testing is verification, not a means of control, so stopping to test is never the tree's outcome.
Further reading: Codex CXC 1-1969 (rev. 2020)
A dairy's bulk milk has a high laboratory pasteurised (thermoduric) count but a normal somatic cell count. Which is the most likely cause?
A. Dirty milking equipment
Thermoduric bacteria survive pasteurisation and build up in milk residues on poorly cleaned equipment. Mastitis would raise the SCC; slow cooling raises psychrotrophs rather than thermodurics; added water lowers solids, not bacterial type.
Why are wet teats undesirable when the milking cluster is attached?
B. Dirty water runs down into the liners and carries bacteria and spores into the milk
Drying teats with an individual towel stops contaminated water, rich in coliforms and spores, from entering the milk and the teat end. The dilution effect is negligible; water has no effect on oxytocin.
A carcass from a pig with multiple abscesses in the lungs, liver, kidneys and carcass lymph nodes should be:
D. Totally condemned as pyaemia
Multiple abscesses in several organs and carcass nodes mean blood-borne spread (pyaemia), a generalised condition. Trimming is only for a single localised abscess.
Why must good hygiene practices (prerequisite programmes) be in place before HACCP is applied?
B. Without them HACCP tries to control at a few points what must be controlled everywhere
Prerequisites such as cleaning, pest control and personal hygiene control general hazards; HACCP focuses on significant hazards at specific steps. It never replaces them.
ATP bioluminescence swabs are used in food plants mainly to:
B. Check quickly whether surfaces are clean after sanitation
ATP detects organic residue, microbial or food, giving a rapid cleanliness check. It does not identify organisms or count them.
During cattle dressing, why are the oesophagus tied and the rectum bagged before evisceration?
C. To prevent rumen and faecal contents leaking onto the carcass
Rodding the weasand and bunging prevent gut contents contaminating the carcass, the main source of STEC and Salmonella on beef.
Visible faecal contamination is found on a beef carcass after hide removal. What is the correct action?
B. Trim the contaminated area with a clean knife
Washing spreads bacteria over a wider area; trimming removes them. Approved decontamination steps can supplement but not replace trimming.
Ten here, 57 in the app. The Laisha app has every practice question we have written to EGEL Plus MVZ in this subject, marked as you go, with timed papers, a jump-to-unanswered list and a certificate when you pass at 70 per cent.
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