1. Infect parasites. There is a chicken farmer, not only litter but also the naked eye can see all kinds of parasites in the litter. The chickens are infected with parasite bugs and are bound to cause itching and armpit hair. 2, barrels and drinking fountains are not enough. One chicken farmer kept 1,500 broilers aged 25 days or older. There were only 11 barrels and 8 drinking fountains in the house. The birds were not eating congested and drinking water in a timely manner. They were also likely to cause armpit hairs. 3, breeding density. There is a chicken farmer who raises more than 1,400 broilers about 30 days old on the ground and only occupies an area of ​​70 square meters, with an average of more than 20 chickens per square meter; the density is too high, the chicken activities are limited, the air is dirty, and the temperature Increased, resulting in 40% of the chicken armpits. 4, feed nutrition imbalance. In the market economy, many chicken farmers have to add chicken to the full-price feed in order to save on feeding costs, and the proportion of mixed chickens is not small, even more than 50%. As a result, the diet will lose its full price, and the ratio of protein, Amino Acid, and trace elements that the poultry must have will no longer be reasonable. Therefore, the breeder chickens that cause the armpits account for more than 80%. Amino Acid Another important function of amino acids is to provide energy to the human body. Normally, a healthy body on a general diet will use carbohydrates as its main fuel, but when the main source is depleted due to strenuous exercise, protein and amino acids can be used as a last resort. Amino acids also play an important role in food taste. Protein doesn't have much taste, but each amino acid has its own taste, and combining them is one of the important factors that define the taste of food Amino Acid,Asn Amino Acid,Leucine Powder,Food Grade L-Tryptophan YT(Xi'an) Biochem Co., Ltd. , https://www.ytherblife.com