ANSC 3270 Final Exam Questions and Verified Answers 2024

ANSC 3270 Final Exam Questions and Verified Answers 2024 In chickens, gut metabolizes ___% of whole body energy expenditure Correct Answer: 20-36% How many kg of antibiotics are prescribed to a human annually? Correct Answer: 197,753 kg Dual role of the gut Correct Answer: immunity and barrier function digestion and absorption Immunity and barrier function Correct Answer: a) mucus secretion b) epithelial cell renewal c) antimicrobial peptides Digestion and absorption Correct Answer: a) digestive enzymes b) nutrient transporters Limitations of young gut biology Correct Answer: - inadequate exogenous enzyme secretion - reduced absorptive capacity - inadequate HCL secretion - inadequate food and water intake inherent digestive inefficiency Correct Answer: there is presence of indigested protein, starch, fat, phosphorus, etc. peculiarity of feedstuffs Correct Answer: -phytate -fibre and resistant starch -inhibitors and toxins result of undigested nutrients Correct Answer: pathogen overgrowth = increased flow of DM to hind-gut problematic feed ingredients Correct Answer: rye based diets, soluble NSP in cereal grains why does high soluble fibre reduce growth and nutrient digestion in poultry? Correct Answer: - high exogenous secretions - binding of endogenous enzymes - nutrient encapsulation - delayed absorption fat digestion (emulsification) Correct Answer: fat in duodenum stimulates secretion of cholecytstokinin which regulates secretion of pancreatic enzymes and bile acids (which emulsify fat droplets) implication of bacterial overgrowth in SI is fat digestion, which results in: Correct