In feed evaluation, metabolizable energy is obtained from digestible energy after subtracting mainly:
Correct answer: C. Urinary and gaseous losses
- A. Fecal and saliva losses
- B. Protein and starch losses
- C. Urinary and gaseous losses
- D. Mineral and vitamin losses
Explanation
Metabolizable energy equals digestible energy minus energy lost in urine and combustible gases such as methane. Fecal energy has already been removed when digestible energy is calculated.
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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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