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LEA Mock Test: Animal Science Questions And Answers

Byआदित्य अभिषेक

Hey students, preparing for your upcoming agriculture examinations such as PRC LEA, UPSC, ICAR JRF, etc. but confused about whether your preparation is going well or not? Well, no more! At Agriculture Review, we keep updating new test series daily based on previous years’ questions of the Examination for Agriculturists.

📘 How to Attempt These LEA Based MCQs

Follow these simple steps to simulate exam conditions, boost accuracy, and learn from mistakes effectively.

  1. Read each question carefully. Look for keywords like “primary,” “most common,” या “best suited.”
  2. Use the elimination method. Cross out obviously wrong options first to narrow choices.
  3. Time management: Aim for 1 minute per question (total 50 minutes). Mark hard questions and return to them later.
  4. Think conceptually. LEA questions often test application — ask yourself why an answer fits.
  5. Keep calculations minimal. Most MCQs are conceptual; when calculations appear, write steps clearly.
  6. After finishing, review answers. Check the answer key only after completing the whole test to assess time and accuracy.
  7. Create a revision list. Note down topics you missed and review them in short, focused sessions.
Quick tips:
  • Answer easy questions first to secure marks quickly.
  • For disease questions, remember causative agents (virus/bacteria/protozoa) and prevention methods (vaccination/biosecurity).
  • Memorize common breeds, top-producing regions, and key lab tests (e.g., CMT for mastitis).

Tip: Repeat the quiz weekly and track progress. Consistent practice beats last-minute cramming.

You can also join our Facebook Broadcast Channel, where we regularly share newly updated questions. All the best for today—I hope you become a registered Agriculturist soon!

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यदि आपका कोई प्रश्न, विचार या सुझाव है तो कृपया नीचे टिप्पणी करें। आप फेसबुक, इंस्टाग्राम, कू और व्हाट्सएप मैसेंजर पर भी एग्रीकल्चर रिव्यू से जुड़ सकते हैं।

lea-mock-test-animal-science-questions-and-answers
LEA Mock Test: Animal Science

LEA Mock Test: Animal Science

1. Which of the following volatile fatty acids (VFAs) is the main substrate for milk fat synthesis in ruminants?

2. Which stomach compartment in adult ruminants is primarily responsible for water absorption and particle size reduction (often called the “manyplies”)?

3. Which feeding strategy is most appropriate to prevent ruminal acidosis in feedlot cattle being switched from forage to high-concentrate rations?

4. In poultry, which vitamin deficiency is most commonly associated with poor eggshell quality and decreased egg production?

5. Which genetic term describes the phenomenon where crossbred offspring perform better than the average of the purebred parents?

6. Which of the following is the best immediate on-farm test to check for adequate passive transfer of immunity in a foal or calf?

7. Which meat preservation method relies primarily on reducing water activity to inhibit microbial growth?

8. Which reproductive technology is most commonly used to synchronize estrus for timed artificial insemination in cattle?

9. Which of the following pathogens is a common cause of mastitis in dairy cows and is frequently isolated from clinical mastitis cases?

10. In a feed analysis, which of the following methods estimates the crude protein content of a feed sample?

11. Which protein source is considered a high-quality feed ingredient for poultry because of its amino acid profile and digestibility?

12. Which endocrine gland produces prolactin, the hormone important for lactation in mammals?

13. What is the principal carbohydrate end-product absorbed from the small intestine of monogastric animals that serves as a major energy source?

14. Which management practice most directly reduces the risk of Salmonella contamination in commercial poultry farms?

15. In quantitative genetics, “heritability (h²) in the broad sense” measures which of the following?

16. Which condition in pigs is characterized by sudden death, fever, reddened skin, and may be prevented by vaccination against Porcine Reproductive and Respiratory Syndrome (PRRS)?

17. Which of the following is an advantage of using artificial insemination (AI) in livestock breeding programs?

18. Which indicator is the most direct measure of feed efficiency in meat animals?

19. During post-mortem inspection in a small slaughterhouse, which condition in a carcass is an absolute cause for condemnation?

20. Which practice improves egg storage life and reduces microbial contamination before marketing?

21. Which mineral deficiency in ruminants commonly causes white muscle disease (nutritional muscular dystrophy) in young animals?

22. Which of the following is a measure of carcass yield defined as (hot carcass weight / live weight) × 100?

23. In ruminant nutrition, which component of the diet is measured by the Neutral Detergent Fiber (NDF) analysis?

24. Which breed is the principal draft and dairy-type buffalo (carabao) used traditionally in the Philippines?

25. Which measure is most appropriate to control internal parasites in grazing small ruminants?

26. In poultry layer management, what is the typical photoperiod management strategy to stimulate and maintain egg production?

27. Which of these is a common post-harvest hazard in fresh milk that affects consumer safety and is targeted by pasteurization?

28. Which selection criterion would be most effective to improve growth rate in a meat-type population with moderate heritability for weight?

29. Which practice during transport of livestock most reduces losses due to heat stress in tropical climates?

30. Which factor primarily determines the water intake of farm animals under normal conditions?

31. Which enzyme in the ruminant forestomach microbial population is primarily responsible for breaking down cellulose to simpler sugars?

32. Which of the following is a primary reason for performing residue withdrawal times before marketing meat or milk?

33. Which physiological state in dairy cows requires the highest plane of nutrition to support production?

34. Which breeding system involves mating of relatives more often than expected by chance and often leads to increased homozygosity?

35. In commercial broiler production, which management parameter most directly affects uniform growth and feed conversion within a flock?

36. Which of these is a primary cause of dark, firm, dry (DFD) meat in beef carcasses?

37. For improving disease resistance through breeding, which type of genetic variance is most directly exploited by selection?

38. Which component of the hen’s reproductive tract is responsible for shell formation?

39. Which processing step is essential to reduce microbial load in raw milk before it is stored or transported to minimize spoilage?

40. Which measurement is used to estimate the energy content of feed for monogastric animals?

41. Which of the following husbandry practices reduces mastitis incidence in dairy cattle?

42. Which amino acid is typically the first limiting amino acid in corn-soy based diets for poultry?

43. Which on-farm cooling method helps lactating cows dissipate heat most effectively in hot, humid climates?

44. Which selective breeding goal would most directly improve wool production in sheep?

45. Which procedure is commonly used to determine the pregnancy status of cows as early as 28–35 days after insemination?

46. Which factor most significantly affects the shelf life of vacuum-packaged chilled meat?

47. Which husbandry practice is essential to reduce neonatal mortality in kid goats?

48. Which seafood product attribute is most critical for marketing freshness in fish intended for raw consumption (e.g., sashimi)?

49. Which of the following is the best method to estimate body condition score in beef cattle?

50. Which vaccine strategy is recommended for controlling Newcastle disease in village poultry populations with variable management?

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आदित्य अभिषेक ने एसडीएसयूवी, उत्तराखंड से कृषि में स्नातक की पढ़ाई पूरी की है। वह कृषि और गृह बागवानी पर सीखने और ज्ञान प्रदान करने पर ध्यान केंद्रित करते हैं। उन्होंने कृषि, बागवानी और दुकान की गुणवत्ता वाले उत्पादों और सेवाओं की बेहतर प्रथाओं को सीखने के लिए सभी प्रकृति उत्साही लोगों के लिए एक सामान्य मंच के रूप में एग्रीकल्चर रिव्यू बनाई।

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