RPSC Veterinary Officer (Rajasthan) · India · Rajasthan Public Service Commission
Original practice questions written to the published syllabus · not past papersFrom live animal to packaged meat: abattoir design, stunning and slaughter, carcass fabrication, the conversion of muscle to meat, meat and poultry products, and by-products including wool.
In the exams: ICAR AICE-JRF core group 05; ICAR AIEEA-PG 14 (LPT); TNPSC LPT 15; RPSC LPT (wool)
How our questions for RPSC Veterinary Officer spread across the units of Meat Science, Abattoir Practice & Animal By-products Technology. Difficulty: 32 easy, 2 medium, 0 hard.
| Wool, mohair and fur | 6 | |
| Conversion of muscle to meat | 4 | |
| Abattoir design | 4 | |
| Meat products | 4 | |
| Utilisation of by-products | 4 | |
| Slaughter methods, including religious slaughter | 3 | |
| Carcass fabrication | 3 | |
| Stunning | 2 | |
| Poultry processing | 2 | |
| Meat packaging | 1 | |
| Meat marketing | 1 |
Choose an answer, then open the working. Each explanation says why the right answer is right and why the others are not.
Pithing after captive bolt stunning of cattle is prohibited in the EU mainly because it:
D. Can spread central nervous tissue, a BSE risk, into the blood and carcass
Pithing lacerates brain and spinal tissue; after BSE the EU banned it for cattle, sheep and goats to prevent dispersal of specified risk material. It does not reverse a stun.
Why are two knives used alternately at the sticking point?
A. So one is sterilised in hot water while the other is used, keeping bacteria out of the circulation
At sticking the heart may still pump, so bacteria on a dirty knife can be distributed through the carcass. Alternating knives lets each be sterilised between animals.
The stable pink colour of cooked cured meat such as ham is due to:
D. Nitrosyl haemochrome
Nitric oxide from nitrite binds myoglobin (nitrosylmyoglobin); on cooking, the globin denatures to give pink nitrosyl haemochrome. Oxymyoglobin is the bloom of fresh meat; metmyoglobin is brown.
Heparin is commercially obtained mainly from:
A. Pig intestinal mucosa
Pig intestinal mucosa is the main source of heparin. Pancreas was the historical source of insulin; the abomasum of milk-fed calves gives rennet (chymosin).
Rennet containing chymosin is traditionally extracted from the:
D. Abomasum of milk-fed calves
The fourth stomach of young milk-fed calves secretes chymosin. Pig stomach gives pepsin. Microbial and recombinant chymosin now supply much of the market.
A greasy fleece of 4.5 kg gives 2.97 kg of clean scoured wool. What is the clean wool yield?
A. 66 percent
Yield = 2.97/4.5 x 100 = 66 percent. 34 percent is the grease, suint, dirt and vegetable matter removed; 152 inverts the ratio and 0.66 forgets to multiply by 100.
Which Indian sheep breed is known as the 'Merino of India' for its fine carpet wool?
D. Chokla
Chokla of Rajasthan gives the finest Indian carpet wool. Magra is known for lustrous carpet wool; Marwari gives coarse carpet wool; Deccani is primarily a mutton breed with coarse wool.
Kemp fibres in a fleece are:
D. Heavily medullated, brittle, chalky fibres that dye poorly
Kemp is coarse and heavily medullated; it appears chalky white after dyeing and lowers value. Second cuts are short pieces from shearing errors.
Mohair is the fibre of the:
B. Angora goat
Mohair comes from the Angora goat. Angora fibre comes from the Angora rabbit; pashmina from the Changthangi goat; karakul lambs give fur pelts.
Pashmina is obtained from the:
D. Fine down of the Changthangi goat
Pashmina is the down of Changthangi goats of Ladakh. Shahtoosh comes from the chiru and its trade is banned under CITES.
Ten here, 34 in the app. The Laisha app has every practice question we have written to RPSC Veterinary Officer 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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