ANIMAL HUSBANDRY AND VETERINARY SCIENCE Paper I CIVILS MAINS 2012
I Time Allowed Three Hours I I Maximum Marks 300 I
INSTRUCTIONS
Each qZLestion is printed both in Hindi and in English.
Answers mZLst be written in the medium specified in the
Admission Certificate issZLed to you, which must be
stated clearly on the cover of the answer-book in the
space provided for the pZLrpose. No marks will be given
for the answers written in a medinm other than that
specified in the Admission Certificate.
Candidates should attempt Questions no. 1 and 5
which are compulsory, and any three of the remaining
qnestions selecting at least one question from each
Section.
The number of marks carried by each question is
indicated at the end of the question.
IMPORTANT Whenever a question is being
attempted, all its parts/sub-parts must be attempted
contiguously. This means that before moving on to the
next question to be attempted, candidates must finish
attempting all parts/sub-parts of the previous question
attempted. This is to be strictly followed.
Pages left blank in the answer-book are to be
clearly struck out in ink. Any answers that follow
pages left blank may not be given credit.

SECTION A

1.
Define the condition "frothy bloat". Which kind of grazing and diets are particularly known to cause this condition What measures can be taken to reduce its occurrence 15
Discuss the regulation of blood pH during the resting phase and working phase in draught animals.
Enumerate the advantages and disadvantages of mixed fanning. Discuss its suitability in cases of marginal farm holdings.
Discuss the problems and constraints faced in the course of transfer of technology to the farmer's door.
2.
Discuss the part played by neuro-humoral regulation in the maintenance of cardiac fonction in cows . 18
Enumerate the enzymes used as food additives in animal nutrition. What precise benefits does ca.ch of these enzymes offer to the animal? What properties must these enzymes possess if they are to be effective when incorporated into the animal's diet? 24
What is "chloride shift"? Define its role in carbon dioxide transport in mammalian animals. 18

3.
Define the term "probiotics". What arc the key ways m which they exert their effects What critical properties must they possess for them to be not harmful to the host animal 20
"The breeding value of an animal is estimated by progeny testing." Explain the statement. Enumerate the three principal methods used in the estimation of sires on the basis of progeny testing.
Discuss the thermoregulatory mechanisms which help preserve the body temperature of bovine animals under diverse climatic conditions.

4.
Discuss the process of digestion and absorption of carbohydrates, proteins and lipids in monogastric and polygastric animals. 24
You wish to set up a commercial poultry farm with the facility of a hatchery. How would you go about setting it? Dlscuss its critical components. 24
Discuss the measures which can help improve the success rates of artificial insemination. 12


SECTION B

5.
Discuss the causes of spontaneous and induced mutations. What significance do they carry from the perspective of health of a herd? 12
Discuss the modern manipulation techniques which can be used to improve the Egg production i n poultry Wool production in sheep Meat production in pigs 24
Discuss artificial induction of lactation in dairy animals and its impact on their health. 12
Discuss the relative contributions of genotype and environment on animal phenotype. 12

6.
"Even as inbreeding within a herd produces homozygosity, animal breeders working with productive herds consider it to be largely unfavourab]e from commcrcia] perspective." Explain the full import of the statement.
Define the term "Growth Promoter". Discuss the various growth promoters used in rations of ruminants and poultry, citing their mechanisms, favourable effects and possible ill-effects. 20
Discuss in brief the gynaecological disorders found in livestock which lead to infertility. 20

7.
"For monogastric farm animals, oligosaccharides can play a useful role as prebiotics." Explain the statement. Name five common natural sources of oligosaccharides.
You are entrusted with the job of developing a herd of high-yielding Murrah buffaloes in the shortest possible time. Using your expertise 1n animal husbandry, discuss how you would set about fulfilling this task, while ensuring that the herd retains its desirable traits rn the subsequent generations.
Discuss the technological applications being put into practice for improving the digestibility an nutritive value of wheat bran and paddy straw. 20

8.
Discuss the formulation of a balanced diet 111 the following groups Lactating dairy cattle Pregnant cattle Sheep reared for wool production Heifers 32

"In poultry production, culling may sometimes be essential if the profits arc to be optimized." Explain the s tatement, illustrating your answer with the situations in which this needs to be practised. 14
Discuss the physiology of milk formation and milk let-down in dairy animals. Does the diet of the animal affect the quality and composition of milk Explain. 14


Note: English version of the Instructions is printed
on the front cover of this question paper.