What is the primary reason for including amino acids in swine diets?

Including amino acids in swine diets primarily serves to balance protein synthesis, which is essential for the growth and maintenance of body tissues. Amino acids are the building blocks of proteins, and swine require a specific balance of these amino acids to support various physiological functions.

Each amino acid has unique roles associated with the development of tissues, enzymes, hormones, and immune response. By incorporating the right balance of amino acids into the diet, swine can effectively synthesize proteins necessary for optimal health and growth. Insufficient or imbalanced amino acids can lead to stunted growth or poor overall health because the pig's body cannot produce the required proteins for muscle building and other vital functions.

While improved feed efficiency, rapid weight gain, and muscle development are outcomes of having a well-balanced diet that includes amino acids, they are secondary effects that stem from the underlying importance of protein synthesis. Therefore, the primary focus on balancing protein synthesis ultimately helps achieve those other benefits in swine production.