(Download) CS (MAIN) EXAM:2020 ANIMAL HUSBANDRY (Paper I)

• Exam Name: CS (MAIN) EXAM:2020  ANIMAL HUSBANDRY (Paper I)

• Marks: 250

• Time Allowed : Three Hours

SECTION-A

Q1. Answer the following questions in about 150 words each : 

(a) Discuss in brief the necessity of processing of animal feeds. 

(b) Explain the statement, “the reproductive behaviour is controlled by central nervous system in animals". 

(c) Describe the methods by which feed intake in grazing animals is predicted. 

(d) Discuss the role of specific tissue growth factors in animals. 

(e) What are the endogenous and exogenous factors which influence the sperm motility of a buffalo bull?

Q2. (a) Write short notes on the following: 

(i) Swollen hock syndrome

(ii) Protein-energy interrelationship 

(iii) Respiratory quotient 

(iv) Total digestible nutrients 

(v) Protease inhibitors in feeds 

(b)How are non-protein nitrogenous substances utilized in ruminant animals? Enumerate the factors which affect the urea utilization in cattle. 

(c) Classify vitamins. What do you mean by essential and non-essential vitamins? Mention the coenzymes and enzyme prosthetic groups of 'B' vitamins along with their functions in metabolism. 

Q3.(a) Illustrate diagrammatically the interactions between physical environment and animal productivity. 

(b) Discuss the control of aldosterone secretion by renin-angiotensin mechanism. 

(c) Differentiate between milk secretion and milk ejection. Explain the milk ejection mechanism in a cow. 

(d) How is hormone secretion regulated in animals? Explain. 

Q4.(a) Describe the methods for estimation of protein requirements for maintenance in adult cattle. 

(b) Compute a ration for a lactating crossbred cow weighing 400 kg and yielding 12 kg milk with 4% fat daily during second calving from wheat straw (0% DCP and 40% TDN) and concentrate mixture (15% DCP and 70% TDN). The requirement for maintenance is 300 g DCP and 3.30 kg TDN, whereas for production of 1 kg milk, 45 g DCP and 315 g TDN are required. 

(c) What are gastrointestinal hormonal substances? Write their action and stimulus for release. 

(d) Conception rate is affected by artificial insemination technique in a cow. Explain. 

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Section-B

Q5. Answer the following questions in about 150 words each : 

(a) Illustrate the inheritance of sex-limited characters in cattle and poultry. 

(b) Prepare a schedule of day-to-day operations to be carried out in an organized dairy farm. 

(c) Differentiate between mitosis and meiosis.

(d) Mention the salient features of any two indigenous milch breeds of cattle.

(e) What is cyber extension? Write the advantages of cyber extension. 

Q6.(a) Write in detail the procedure for calculating the economics of the milk production at a commercial dairy farm. 

(b) Suggest the strategic measures for feeding management of livestock during natural calamities. 

(c) Discuss the feeding habits of goats and write the commonly available feeds and fodder for goats in India. 

(d) Write in brief about the feeding management of goat kids from birth to three months of age. 

Q7.(a) What do you understand by Hardy-Weinberg law? Give the properties and uses of Hardy-Weinberg law. What prerequisites are necessary for the maintenance of Hardy-Weinberg equilibrium in a population? 

(b) Describe gene mutations. Give the classification of gene mutation based on its location and effect. Write the salient features of mutation. 

(c) Describe various systems of animal breeding. Explain how grading-up differs from cross-breeding. 

Q8.(a) What is meant by chromosomal aberration? Classify it. Discuss about translocation and karyotyping.

(b) Describe various components of good dairy farming practices.

(c) Enlist the programmes which have been implemented in 21st century for the welfare of animal husbandry sector.

(d) Write in brief about the 'Rashtriya Gokul Mission and its objectives.

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