The principal nutritional effect of adding phytase to cereal-based animal diets is to:
Correct answer: B. Release phosphorus bound in phytate
- A. Convert dietary fat into glucose
- B. Release phosphorus bound in phytate
- C. Destroy all antinutritional proteins
- D. Increase the synthesis of vitamin B12
Explanation
Phytase hydrolyses phytate and releases phosphorus that would otherwise be poorly available, especially in poultry and pigs. It can also improve the availability of some minerals and nutrients, but its primary purpose is phytate degradation.
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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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