Ionophores improve feed efficiency in ruminants mainly by:
Correct answer: A. Altering rumen populations and increasing propionate production
- A. Altering rumen populations and increasing propionate production
- B. Providing essential amino acids directly to muscle
- C. Increasing the absorption of dietary cellulose in the intestine
- D. Replacing all microbial protein with dietary protein
Explanation
Ionophores selectively affect rumen microorganisms and commonly shift fermentation toward propionate, while reducing some less efficient fermentation pathways. They do not function as direct amino acid supplements or replace microbial protein.
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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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