Animal nutrition is the science of preparing (formulating) and providing feed to satisfy the needs of animals at various stages of development. Humans obtain a large portion of their nutrition from animal-based foods. Animal products (meat, milk, eggs, and fish) are being consumed more widely and per capita over the world. This change reflects rising living standards, increased consumer demand, and more efficient manufacturing. It is important to note that 765 million people continue to suffer from chronic malnutrition and hunger. Protein and fat, particularly saturated fat, are abundant in animal products. Animal products are a good source of highly digested, high-quality protein with a good balance of amino acids, especially the essential amino acids.
For many of the underprivileged in the developing world, livestock rearing is essential, as it typically serves many purposes and provides a means out of poverty. The relationship between livestock raising and the family's physical well-being is complicated. Livestock Nutrition has played an important role in human evolution, including early contributions to the evolution of bipedal movement and the development of a larger brain. Malnutrition and a variety of nutritional inadequacies are particularly well-served by poultry diet. First, Livestock Nutrition are high in calories and a rich source of protein as well as a variety of important micronutrients, which can have serious implications if they are deficient.
Fisheries have a significant role in addressing the issue of food security. Around 1 billion people worldwide rely on fish as their primary source of animal protein. Food security encompasses more than just food production. It is defined as having physical and financial access to enough, safe, and nutritious food to suit one's nutritional demands. Fish production also contributes to overall food supplies for the general population, which is crucial for food security. Another significant benefit is aquaculture's contribution to the food security of the poor, especially those most vulnerable to malnutrition. Aquaculture is expanding the world's food supply and has enormous potential to combat malnutrition and diet-related diseases. The nutrients available through aquaculture are influenced by the species chosen and the meals employed. Fish is the principal source of protein for around 950 million people throughout the world, and it is an important element of the diet of many more.