Which type of feed additive is primarily used to control bacterial infections in livestock?

The use of antimicrobials as a type of feed additive is primarily focused on controlling bacterial infections in livestock. Antimicrobials are substances that kill or inhibit the growth of bacteria and other microbes. In the context of livestock nutrition, these additives can help prevent disease outbreaks, support animal health during stressful conditions, and improve overall productivity by reducing the risk of infections.

Bacterial infections in livestock can lead to significant economic losses due to reduced growth rates, lower feed efficiency, and increased mortality. Antimicrobials work by targeting specific components or processes of bacterial cells, making them effective in controlling pathogenic bacteria within the animal's body or the feed. Their application can also support meat and milk production by ensuring that the animals remain healthy and thus can reach their growth and production potentials.

In contrast, probiotics are live microorganisms that provide health benefits by improving gut flora, and while they can indirectly support the immune system, they do not directly control bacterial infections. Mineral supplements provide essential nutrients necessary for various bodily functions but do not have a direct impact on bacterial control. Enzymes are added to enhance digestibility and nutrient absorption but again do not target bacterial infections. Therefore, antimicrobials are the most appropriate choice for directly addressing bacterial infections