Probiotics are used in both human and animal nutrition for their health benefits. In animal diets, probiotics are included as feed additives to create a healthy and resilient intestinal microbial environment. Maintaining a beneficial intestinal microbial composition helps in improving the overall health of the animal and thereby positively affects body weight gain (BWG) and feed conversion ratio (FCR).

Feed additives are substances added to animal feed to enhance its nutritional value, improve animal health, and promote growth. They have become an essential part of modern animal production systems due to their ability to improve animal performance, reduce feed costs, and enhance food safety. The use of feed additives has become increasingly important as the demand for animal protein products continues to grow worldwide. This research article examines the importance of feed additives in the growth of animals, their types, and their benefits.