Apparent digestibility of a feed nutrient is calculated from the amount consumed after subtracting the amount lost in:
Correct answer: B. Feces only
- A. Urine only
- B. Feces only
- C. Expired gases only
- D. Sweat and saliva
Explanation
Apparent digestibility compares nutrient intake with the nutrient recovered in feces. It does not correct for metabolic or endogenous material excreted into the digestive tract, which distinguishes it from true digestibility.
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About Animal Nutrition and Feeding
Covers carbohydrates, proteins, lipids, minerals, vitamins and water, along with digestion, absorption and energy metabolism in domestic animals. Questions involve feed evaluation, nutrient requirements, ration formulation, forage and concentrate feeds, deficiency disorders, and the differences between ruminant and monogastric nutrition.
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