1.The major toxic metabolite produced by Aspergillus flavus contamination in feed is:
A Ochratoxin
B Zearalenone
C Aflatoxin
D Citrinin
E None of the above
Correct Answer C
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2. Which vitamin functions primarily as a coenzyme in carboxylation reactions involved in fatty acid synthesis and gluconeogenesis?
A Vitamin A
B Biotin
C Vitamin D
D Vitamin K
E None of the above
Correct Answer B
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3. The principal mechanism by which ionophores such as monensin improve feed efficiency in ruminants is by:
A Increasing ruminal protozoal protein synthesis
B Enhancing acetate production preferentially
C Shifting rumen fermentation toward propionate production
D Inhibiting all ruminal microbial activity
E None of the above
Correct Answer C
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4. Processes of subjecting the grains to high pressure steam followed by the sudden decrease in atmospheric pressure is
A Extrusion
B Explosion
C Roasting
D Pressure cooking
E None of the above
Correct Answer B
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5. Which seleno protein is involved in the conversion hormone of thyroid T4 into T3?
A Thioredoxin reductase
B Selenophosphate synthetase
C Iodothyronine 5 '-deiodinase
D Glutathione peroxidase
E None of the above
Correct Answer C
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6. Calcium content (%) of layer phase II feed as per BIS specifications, 2024
A 3
B 4
C 3.5
D 1
E None of the above
Correct Answer B
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7. In ruminants, the primary precursor for hepatic gluconeogenesis under normal feeding conditions is:
A Acetate
B Butyrate
C Propionate
D Lactate
E None of the above
Correct Answer C
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8. A feeding standard which considered for the first time the quantity as well as the quality of milk produced in formulating a standard
A Haecker's Feeding Standard
B Morrison's standard
C Kellner's starch equivalent
D Grouven's feeding standard
E None of the above
Correct Answer A
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9. Which one of the following cereal grains contains a considerable amount of tannins?
A Ragi
B Rice
C Sorghum
D Corn
E None of the above
Correct Answer C
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10. Microbe used for the microbiological determination of available methionine
A Terahymena pyriformis
B Fibrobacter succinogens
C Streptococous zymogens
D Ruminococcus flavefaciens
E None of the above
Correct Answer C
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11. Which component of egg helps in brain function along with enhancing thinking capacity and memory
A Calcium
B Choline
C Vitamin A
D Biotin
E None of the above
Correct Answer B
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12. Multipurpose leguminous tree fodder grows in low soil pH
A Agathi
B Babul
C Glyricidia sepium
D Khejri
E None of the above
Correct Answer C
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13. The efficiency of utilization of protein for egg production in poultry
A 7.5%
B 15%
C 55%
D 85%
E None of the above
Correct Answer C
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14. Nutritive ratio is wider when the ration contain............
A High Straw
B High Green grass
C High Legume
D High Oilcake
E None of the above
Correct Answer A
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15. Which mineral deficiency is primarily responsible for nutritional secondary hyperparathyroidism in horses?
A Iron
B Copper
C Calcium
D Selenium
E None of the above
Correct Answer C
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16. Which feeding strategy is considered most effective for reducing enteric methane emissions in ruminants without severely compromising productivity?
A Feeding highly lignified mature roughages only
B Increasing dietary concentrates within optimal physiological limits
C Eliminating rumen microbial activity completely
D Excessive protein supplementation beyond requirements
E None of the above
Correct Answer B
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17. A biomarker for assessing the copper status of animal
A Transferrin
B Seleno methionine
C Ceruloplasmin
D Ferritin
E None of the above
Correct Answer C
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18. Mineral whose deficiency causes infertility in males because of its presence in the component of the
enzyme thymidine kinase
A Copper
B Boron
C Zinc
D Iodine
E None of the above
Correct Answer C
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19. Which nutritional disorder in high-producing dairy cattle is most directly associated with excessive mobilization of body fat during early lactation?
A Grass tetany
B Milk fever
C Ketosis
D Rickets
E None of the above
Correct Answer C
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20. A low milk fat results when the ratio of acetic to propionate in the rumen content falls below
A 3:1
B 1:1
C 4.5:1
D 1:4.5
E None of the above
Correct Answer A
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21. In nutrigenomics, the term "gene-nutrient interaction" refers to:
A Permanent mutation induced by dietary proteins
B Influence of nutrients on gene expression and metabolic pathways
C Destruction of DNA by feed toxins exclusively
D Genetic recombination occurring in ruminal microbes only
E None of the above
Correct Answer B
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22. kg of moderately fermentable carbohydrate is required for providing For each 100g of urea fed, necessary energy to the rumen microbes
A 2 kg
B 1 kg
C 0.5 kg
D 0.250 kg
E None of the above
Correct Answer B
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23. Quantity of microbial protein synthesized for each kg of organic matter digested in the rumen
A 100g
B 500g
C 200g
D 20g
E None of the above
Correct Answer C
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24. Protease activity in rumen is highest for?
A Bacteria
B Bacteriophage
C Fungi
D Protozoa
E None of the above
Correct Answer D
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25. Deficiency of at cellular level leads to the failure of entry of Acetyl CoA into Krebs cycle in
ketosis
A Oxaloacetate
B Propionate
C Glutamate
D Carnitine
E None of the above
Correct Answer A
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