Advanced Livestock Nutrition Practice Exam

Question: 1 / 400

What is the primary function of antibiotics in livestock?

Enhance growth rates

Promote appetite

Limit the growth of bacteria

The primary function of antibiotics in livestock is to limit the growth of bacteria. Antibiotics are used in animal husbandry to control and prevent bacterial infections, thereby improving overall health and reducing disease in livestock. By inhibiting the growth of pathogenic bacteria, antibiotics help maintain a healthier gut environment, which is crucial for the animal's well-being and performance.

This function is essential not only for the health of the animal but also for the efficiency of production. Reducing bacterial loads can prevent illnesses that would otherwise divert energy and nutrients away from growth and reproduction, ultimately supporting better overall productivity.

While antibiotics can indirectly influence growth rates and feed conversion ratios through health improvement, their main role is to act as a competitive inhibitor against harmful bacteria, ensuring a healthier livestock population.

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Improve feed conversion ratios

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