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Animal Science Questions You Must Try For LEA

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 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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Animal Science Questions

Animal Science Questions

1. During high-temperature short-time (HTST) pasteurization of milk, which of the following is the standard temperature–time combination widely used to ensure safety while preserving sensory quality?

2. Which carcass evaluation metric is MOST directly used to estimate lean meat yield in beef carcasses?

3. Which egg-preservation technique forms a semi-permeable barrier on the shell to reduce moisture loss and microbial entry without refrigeration?

4. In semi-intensive aquaculture systems, productivity is increased primarily by which of the following practices?

5. Which of the following is the LEAST appropriate immediate management step when a dairy cow shows clinical signs of mastitis (swollen, hot quarter and abnormal milk)?

6. In poultry biosecurity, which practice most directly reduces the risk of disease introduction from wild birds?

7. For smallholder goat meat production, which breeding strategy most rapidly increases growth rate and market weight while maintaining local adaptation?

8. Which feed additive is primarily used to reduce enteric methane emissions in ruminants by altering rumen fermentation?

9. In hatchery management for shrimp (prawn) seed production, which stage is critical for determining survival and quality of post-larvae?

10. Which pharmacological principle is MOST important to avoid development of antimicrobial resistance when treating herd disease outbreaks?

11. Which milk component is most sensitive to heat and tends to denature, affecting functional properties during pasteurization and UHT processing?

12. During beef slaughtering under humane practices, which step must be performed immediately prior to bleeding to ensure animal welfare and meat quality?

13. Which dehydration method for eggs retains highest functional properties for industrial use (e.g., baking) while minimizing Maillard browning?

14. In an extensive cattle production system, which constraint most limits the ability to control parasite burdens compared to intensive systems?

15. When formulating a total mixed ration (TMR) for lactating dairy cows, which ratio is MOST critical to prevent ruminal acidosis while maintaining energy density?

16. Which virus is MOST associated with high mortality in poultry and requires immediate notification and strict quarantine under One Health protocols?

17. Which management practice most directly improves milk hygiene at the farm level and reduces bacterial load in bulk tank milk?

18. In swine production, what is the main advantage of early weaning (e.g., <21 days) from a health-management perspective?

19. Which laboratory parameter is MOST useful to detect subclinical parasitism (e.g., Haemonchus) causing production loss in small ruminants?

20. For fish nutrition, which essential fatty acid is typically limiting in many cereal-based feeds and must be supplied for optimal growth of marine species?

21. Which procedure in dairy calf management most strongly reduces neonatal diarrhea incidence and improves passive transfer?

22. Which meat cut classification is based primarily on the anatomical origin and typical cooking method (e.g., roasting vs. braising)?

23. Which water-quality parameter in pond-based aquaculture MOST directly affects oxygen availability for fish and must be monitored daily in intensive systems?

24. Which pathogen commonly causes salmonellosis in poultry and poses significant food safety risk to humans through contaminated eggs and meat?

25. For preservation of raw milk on-farm before transportation, what combination is most effective to inhibit bacterial growth when immediate cooling is delayed?

26. Which indicator organism is commonly used to assess general fecal contamination in meat processing hygiene?

27. In carabao (water buffalo) used for draft and milk, which management intervention most increases milk yield without compromising draft ability?

28. Which antiparasitic strategy is best for slowing development of anthelmintic resistance in small ruminants?

29. Which physiological state in dairy cows requires the highest dietary protein density to support production?

30. In beef feedlot finishing, which management measure most directly improves feed conversion ratio?

31. Which milk-processing parameter is MOST important to monitor during cheese manufacture to ensure proper curd formation?

32. Which on-farm housing feature MOST reduces heat stress in tropical dairy cattle during the hot season?

33. Which diagnostic sample and test combination is most appropriate to confirm clinical avian influenza in a suspect poultry flock?

34. In fish hatcheries, what is the primary purpose of implementing an algal bloom (phytoplankton) during early larval rearing?

35. Which trait is MOST heritable and therefore responds profitably to selection in beef cattle breeding programs?

36. In meat hygiene inspection, which anatomical examination is essential to detect bovine tuberculosis lesions during post-mortem?

37. Which management change most reduces incidence of laminitis in dairy herds?

38. Which practice in poultry hatchery management reduces vertical transmission of Salmonella into eggs?

39. Which feed conservation method best preserves non-structural carbohydrates in tropical grasses for use in dairy cattle during dry season?

40. Which emergency measure is recommended for a herd experiencing an outbreak of a notifiable zoonotic disease pending laboratory confirmation?

41. Which milk quality test indicates the presence of added water or poor cooling that allowed bacterial growth?

42. Which feed ingredient should be limited in ruminant diets due to high levels of anti-nutritional glucosinolates that can impair thyroid function?

43. For meat aging to improve tenderness, which biochemical process is primarily responsible?

44. Which vaccination protocol element is most critical to ensure effective herd immunity in foot-and-mouth disease (FMD) endemic regions?

45. In feed formulation, which measure quantifies the portion of crude protein truly available to the animal for metabolism (especially important in ruminants)?

46. Which management approach is most effective to reduce neonatal mortality in piglets caused by hypothermia and crushing?

47. Which bacterial toxin is of major concern in meat processing because it is heat-stable and can survive cooking if produced pre-cooking?

48. Which housing flooring type in small ruminant pens minimizes hoof problems and fecal contamination while still allowing cleaning?

49. In fish nutrition, which protein source is most commonly recommended for carnivorous species to meet essential amino acid profile?

50. Which method is considered standard to assess bulk tank milk somatic cell count (SCC) as an indicator of udder health at the herd level?

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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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