Animal Nutrition MCQs 50 Score: 0 Attempted: 0/50 Subscribe 1. Which nutrient provides the highest energy to animals? (A) Protein (B) Fat (C) Carbohydrates (D) Vitamins 2. The primary source of energy in ruminant diets is: (A) Protein (B) Carbohydrates (C) Minerals (D) Vitamins 3. The major nitrogenous compound in ruminant urine is: (A) Urea (B) Ammonia (C) Uric acid (D) Creatinine 4. Which mineral is essential for haemoglobin formation? (A) Calcium (B) Phosphorus (C) Iron (D) Magnesium 5. Deficiency of Vitamin A leads to: (A) Night blindness (B) Rickets (C) Scurvy (D) Goiter 6. The primary source of protein in poultry feed is: (A) Maize (B) Soybean meal (C) Rice bran (D) Molasses 7. The main volatile fatty acid produced in the rumen is: (A) Acetic acid (B) Butyric acid (C) Propionic acid (D) Lactic acid 8. Which mineral prevents milk fever in dairy cows? (A) Iron (B) Calcium (C) Copper (D) Selenium 9. The term βTDNβ stands for: (A) Total Digestible Nitrogen (B) Total Digestible Nutrients (C) Total Dry Nutrients (D) Total Dietary Nitrogen 10. Urea is used in animal feeding as a source of: (A) True protein (B) Non-protein nitrogen (C) Carbohydrates (D) Fatty acids 11. The main site of protein digestion in ruminants is: (A) Rumen (B) Reticulum (C) Omasum (D) Small intestine 12. Which vitamin is synthesized in the rumen by microbes? (A) Vitamin A (B) Vitamin D (C) Vitamin K (D) Vitamin C 13. Deficiency of iodine in animals causes: (A) Rickets (B) Goiter (C) Anaemia (D) Tetany 14. Which mineral is a component of Vitamin B12? (A) Cobalt (B) Zinc (C) Copper (D) Selenium 15. What is the average crude protein content of good-quality legume hay? (A) 5β7% (B) 10β12% (C) 15β18% (D) 20β22% 16. The process of chewing cud in ruminants is called: (A) Regurgitation (B) Rumination (C) Mastication (D) Fermentation 17. Which carbohydrate is the main energy source in milk? (A) Sucrose (B) Lactose (C) Maltose (D) Glucose 18. Deficiency of selenium in animals leads to: (A) White muscle disease (B) Night blindness (C) Rickets (D) Ketosis 19. What is the normal pH of the rumen? (A) 4β5 (B) 5β6 (C) 6β7 (D) 7β8 20. Which feedstuff is known as the βgold standardβ for energy in animal feed? (A) Barley (B) Wheat (C) Maize (D) Oats 21. Calcium and phosphorus ratio in livestock diets should be approximately: (A) 1:1 (B) 1:2 (C) 2:1 (D) 3:1 22. Which vitamin deficiency causes rickets in young animals? (A) Vitamin A (B) Vitamin D (C) Vitamin E (D) Vitamin K 23. What is the energy content of 1 gram of fat? (A) 2.25 kcal (B) 4.0 kcal (C) 5.5 kcal (D) 9.0 kcal 24. Which mineral is essential for proper nerve function? (A) Sodium (B) Copper (C) Iron (D) Cobalt 25. In ruminants, most fermentation occurs in: (A) Abomasum (B) Rumen (C) Duodenum (D) Cecum 26. Which vitamin prevents scurvy? (A) Vitamin A (B) Vitamin C (C) Vitamin D (D) Vitamin K 27. Which mineral deficiency causes βpicaβ in cattle? (A) Calcium (B) Phosphorus (C) Magnesium (D) Zinc 28. The heat produced after feed consumption is called: (A) Calorific heat (B) Heat increment (C) Basal heat (D) Metabolic heat 29. Non-ruminant herbivores primarily digest fiber in: (A) Stomach (B) Rumen (C) Cecum and colon (D) Omasum 30. Which mineral is essential for hemoglobin synthesis along with iron? (A) Copper (B) Calcium (C) Zinc (D) Manganese 31. A feed with high moisture content is called: (A) Concentrate (B) Roughage (C) Succulent feed (D) Silage only 32. Molasses in animal feed serves mainly as: (A) Protein source (B) Energy source (C) Fiber source (D) Mineral source 33. The process of adding nutrients to animal feed is called: (A) Fortification (B) Adulteration (C) Dilution (D) Neutralization 34. Which amino acid is first limiting in poultry diets? (A) Lysine (B) Methionine (C) Tryptophan (D) Arginine 35. Crude fiber mainly represents: (A) Proteins (B) Minerals (C) Structural carbohydrates (D) Fats 36. The rumen microbial population mainly consists of: (A) Viruses (B) Bacteria, protozoa, and fungi (C) Only bacteria (D) Only protozoa 37. The term βNPNβ in animal nutrition means: (A) Non-protein nitrogen (B) Neutral protein nitrogen (C) Non-phosphate nitrogen (D) Nutrient protein nitrogen 38. What is the most common mineral deficiency in grazing cattle? (A) Zinc (B) Phosphorus (C) Iodine (D) Selenium 39. Which vitamin acts as an antioxidant in animals? (A) Vitamin A (B) Vitamin D (C) Vitamin E (D) Vitamin K 40. Which mineral deficiency causes grass tetany in cattle? (A) Sodium (B) Magnesium (C) Iron (D) Cobalt 41. Roughages are classified as: (A) High energy, low fiber (B) Low energy, high fiber (C) High energy, high protein (D) Low energy, low fiber 42. Which enzyme digests cellulose in ruminants? (A) Pepsin (B) Cellulase (C) Trypsin (D) Amylase 43. The process of preserving green fodder anaerobically is called: (A) Hay making (B) Silage making (C) Ensiling (D) Both B and C 44. Which is the richest source of calcium among common feedstuffs? (A) Wheat bran (B) Fish meal (C) Limestone powder (D) Soybean meal 45. The rumen capacity in an adult cow is about: (A) 20β30 liters (B) 50β60 liters (C) 80β100 liters (D) 120β150 liters 46. Which vitamin is essential for blood clotting? (A) Vitamin A (B) Vitamin D (C) Vitamin E (D) Vitamin K 47. Biotin deficiency in poultry leads to: (A) Rickets (B) Perosis (C) Dermatitis and leg deformities (D) Anemia 48. The most abundant mineral in animal bodies is: (A) Phosphorus (B) Calcium (C) Sodium (D) Potassium 49. Which feed is commonly used as a bypass protein in ruminants? (A) Cottonseed cake (B) Soybean meal (C) Heat-treated groundnut cake (D) Urea 50. Which mineral is essential for enzyme glutathione peroxidase activity? 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