Which of these amino acids are commonly used as supplements in animal feed to promote growth?

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Methionine and lysine are commonly used as supplements in animal feed to promote growth. They are essential amino acids that are often limiting in the diets of livestock. By providing additional methionine and lysine, the animals are able to utilize other nutrients more efficiently, leading to improved growth and performance. Glycine and glutamate are non-essential amino acids that are typically not supplemented in animal feed. Proline and valine are essential amino acids, but they are not commonly used as growth-promoting supplements in animal feed. Tryptophan and tyrosine are also essential amino acids, but they are not commonly used as growth-promoting supplements either. Aspartate and histidine are non-essential and essential amino acids, respectively, but they are not commonly used as growth-promoting supplements in animal feed.

Which of These Amino Acids Are Commonly Used as Supplements