Daily MCQ For Agriculturist On Animal Science

1. What is the primary purpose of calculating Animal Units (AU) in livestock management?

• a) To determine feed efficiency
• b) To assess grazing capacity
• c) To monitor animal health
• d) To evaluate breeding success

2. Which of the following factors is crucial for converting livestock into Animal Units?

• a) Age of the animal
• b) Animal weight
• c) Reproductive status
• d) Feed type

3. In rotational grazing, what is the main benefit of allowing pastures to rest?

• a) Increases animal weight
• b) Enhances plant regrowth
• c) Improves soil aeration
• d) Reduces water usage

4. Which nutritional component is most critical for lactating dairy cows?

• a) Carbohydrates
• b) Proteins
• c) Fats
• d) Vitamins

5. What genetic principle is used to increase milk yield in cattle?

• a) Heterosis
• b) Inbreeding
• c) Heritability
• d) Genetic drift

6. Which disease management practice involves separating sick animals to prevent disease spread?

• a) Quarantine
• b) Vaccination
• c) Culling
• d) Isolation

7. What is the most accurate method for assessing forage quality in pastures?

• a) Visual inspection
• b) Laboratory analysis
• c) Animal preference
• d) Soil testing

8. In animal breeding, what does EPD stand for and why is it important?

• a) Estimated Progeny Difference; predicts offspring performance
• b) Expected Production Deviation; measures feed efficiency
• c) Effective Population Density; manages breeding stock
• d) Enhanced Pedigree Data; tracks lineage

9. Which of the following best describes the concept of ‘carrying capacity’ in grazing management?

• a) Maximum number of animals per farm
• b) Optimal stocking rate for pasture sustainability
• c) Minimum number of animals for profit
• d) Average growth rate of livestock

10. What role do trace minerals play in animal nutrition?

• a) Energy production
• b) Bone development
• c) Immune function support
• d) Muscle contraction

11. Which breeding technique is used to quickly establish a desired trait in livestock?

• a) Line breeding
• b) Crossbreeding
• c) Outcrossing
• d) Inbreeding

12. Which management practice can help reduce methane emissions in ruminant livestock?

• a) Increasing forage quality
• b) Using growth hormones
• c) Enhancing feed additives
• d) Providing mineral supplements

13. What is the primary benefit of using artificial insemination in livestock breeding?

• a) Increases genetic diversity
• b) Reduces breeding costs
• c) Improves animal welfare
• d) Speeds up genetic improvement

14. How does a rotational grazing system contribute to pasture biodiversity?

• a) By maintaining consistent grazing pressure
• b) By allowing selective grazing
• c) By providing rest periods for regrowth
• d) By eliminating invasive species

15. What is a critical consideration when formulating rations for beef cattle?

• a) Fiber content
• b) Energy density
• c) Protein balance
• d) Vitamin supplementation

16. In livestock genetics, what is the significance of the term ‘heritability’?

• a) It measures genetic potential
• b) It predicts trait inheritance
• c) It evaluates genetic mutations
• d) It indicates population size

17. Which of the following strategies is used to control parasite load in sheep?

• a) Regular deworming
• b) Improved housing
• c) Enhanced grazing management
• d) Genetic resistance breeding

18. What is the purpose of ‘flushing’ in sheep breeding programs?

• a) To enhance wool quality
• b) To increase reproductive rates
• c) To improve growth rates
• d) To decrease feed costs

19. Which hormone is most commonly associated with inducing lactation in dairy cows?

• a) Estrogen
• b) Progesterone
• c) Oxytocin
• d) Prolactin

20. How can livestock farmers mitigate the impact of climate change on animal health?

• a) By implementing heat stress management
• b) By increasing herd size
• c) By reducing water usage
• d) By enhancing genetic selection

21. Which feed additive can improve feed efficiency and growth rates in poultry?

• a) Antibiotics
• b) Probiotics
• c) Enzymes
• d) Hormones

22. What is the significance of ‘dry matter’ content in animal feed?

• a) It indicates protein levels
• b) It measures energy density
• c) It reflects feed digestibility
• d) It shows water content

23. Which factor is essential in determining the weaning age of piglets?

• a) Growth rate
• b) Nutritional status
• c) Maternal health
• d) Environmental conditions

24. What is the primary objective of genetic selection in poultry breeding?

• a) Enhance feather quality
• b) Improve disease resistance
• c) Increase egg production
• d) Optimize feed conversion

25. Calculate the total grazing capacity for a 50-hectare pasture with a stocking rate of 1.5 Animal Units (AU) per hectare.

• a) 60 AUs
• b) 75 AUs
• c) 90 AUs
• d) 100 AUs

26. A dairy farm produces 500 liters of milk daily. If each cow yields an average of 25 liters per day, how many cows are on the farm?

• a) 15 cows
• b) 20 cows
• c) 25 cows
• d) 30 cows

27. Calculate the feed conversion ratio (FCR) if a chicken consumes 4 kg of feed and gains 1 kg of body weight.

• a) 2.5
• b) 3.5
• c) 4.0
• d) 5.0

28. If the heritability of milk production in cattle is 0.25, what percentage of the variation is due to genetics?

• a) 15%
• b) 25%
• c) 50%
• d) 75%

29. A sheep farm has a stocking density of 5 sheep per hectare. How many sheep are required for a 20-hectare farm?

• a) 50 sheep
• b) 75 sheep
• c) 100 sheep
• d) 150 sheep

30. Calculate the energy requirement for a 500 kg cow with a maintenance energy requirement of 70 kcal/kg/day.

• a) 25,000 kcal/day
• b) 30,000 kcal/day
• c) 35,000 kcal/day
• d) 40,000 kcal/day

31. A cow needs 12 kg of dry matter intake daily. If a farmer has 100 cows, how much dry matter feed is required for one week?

• a) 8,400 kg
• b) 10,000 kg
• c) 12,000 kg
• d) 14,000 kg

32. Calculate the average daily gain (ADG) of a pig that weighs 100 kg at the start and 130 kg after 30 days.

• a) 0.8 kg/day
• b) 1.0 kg/day
• c) 1.2 kg/day
• d) 1.5 kg/day

33. What is the role of colostrum in the early life of a calf?

• a) Provides antibodies
• b) Increases weight gain
• c) Enhances digestion
• d) Improves coat quality

34. Which mineral is crucial for eggshell formation in poultry?

• a) Calcium
• b) Iron
• c) Magnesium
• d) Potassium

35. What is the impact of aflatoxins in animal feed?

• a) Improves growth rates
• b) Reduces feed intake
• c) Enhances milk production
• d) Increases fertility

36. Which practice is essential for preventing mastitis in dairy cows?

• a) Regular hoof trimming
• b) Proper milking hygiene
• c) Balanced ration
• d) Increased exercise

37. What is the function of rumen microbes in cattle?

• a) Produce milk
• b) Digest cellulose
• c) Absorb nutrients
• d) Regulate temperature

38. Which disease is caused by a deficiency of vitamin E and selenium in livestock?

• a) Foot rot
• b) White muscle disease
• c) Milk fever
• d) Anemia

39. What is the main advantage of rotational grazing in pasture management?

• a) Increases soil compaction
• b) Reduces pasture productivity
• c) Improves pasture recovery
• d) Decreases animal health

40. Which of the following is a symptom of heat stress in poultry?

• a) Increased egg production
• b) Reduced feed intake
• c) Improved weight gain
• d) Decreased panting

41. What is the main cause of ketosis in dairy cows?

• a) Excessive calcium intake
• b) High levels of protein in diet
• c) Energy deficiency
• d) Vitamin D deficiency

42. What is the primary method for controlling internal parasites in livestock?

• a) Regular vaccinations
• b) Deworming
• c) Improved feeding
• d) Increased exercise

43. Which of the following is a common cause of lameness in cattle?

• a) High grain diet
• b) Poor bedding conditions
• c) Excessive milking
• d) Low protein diet

44. What is the primary purpose of a feed additive like monensin in cattle diets?

• a) Increase milk fat content
• b) Enhance feed efficiency
• c) Promote muscle growth
• d) Prevent hoof disease

45. Which disease is commonly associated with high levels of nitrates in animal feed?

• a) Bovine tuberculosis
• b) Nitrate poisoning
• c) Foot and mouth disease
• d) Johne’s disease

46. What is the significance of a herd’s average daily gain (ADG) in beef cattle production?

• a) Indicates reproductive performance
• b) Measures feed efficiency
• c) Assesses growth rate
• d) Evaluates health status

47. What is the primary function of the rumen in ruminants?

• a) Absorb nutrients
• b) Digest protein
• c) Ferment plant material
• d) Regulate body temperature

48. Which of the following diseases is caused by a deficiency of vitamin A in livestock?

• a) Rickets
• b) Night blindness
• c) Scurvy
• d) Beriberi

49. What is the primary goal of biosecurity measures on a livestock farm?

• a) Improve feed efficiency
• b) Increase animal growth
• c) Prevent disease introduction
• d) Enhance breeding performance

50. What is the primary benefit of using an integrated pest management (IPM) approach in livestock operations?

• a) Reduced feed costs
• b) Improved animal welfare
• c) Enhanced pest control
• d) Increased breeding success