Method for selecting pig feed additives

According to different functions, pig feed additives can be divided into two categories: nutritional and non-nutritive. First, nutritional additives. Including amino acids, vitamins, minerals and three categories. There are 10 kinds of essential amino acids in pigs. There are three kinds of amino acids, such as lysine, methionine and tryptophan, which are commonly lacking in feed. Farmers often use cereals, bran, and cake as raw materials for compound feed. Grain contains less protein, high digestible energy, and is an energy feed; the crude protein content of cakes is more than 34%, which is a protein feed. When cottonseed cake and rapeseed cake are used as protein feed, lysine is the first limiting amino acid, and the effect of adding synthetic lysine is good. When bean cake and fishmeal are used as protein feed, the amino acid is balanced, and it is not necessary to add amino acid when the dosage is sufficient. If the dosage is small, add lysine or methionine as appropriate. Second, non-nutritive additives. A wide variety, including growth promoters, insect repellents, flavoring agents, etc. Among them, growth promoting agents are the largest category, including antibiotics, synthetic antibiotics, hormones, and enzyme preparations. Commonly used antibiotic additives are oxytetracycline, chlortetracycline, salinomycin, ligamycin, bacitracin zinc and the like. There are also many types of synthetic antibacterial drugs, such as quinolines, iodines, and organic arsenic preparations. Antibiotics and synthetic antibacterials also have a growth-promoting effect. At present, the addition of olaquindrol to domestic piglets is more common, and the effect of promoting sputum-promoting is better. Insect repellents commonly use levamisole, albendazole, trichlorfon, deworming, etc., and it is more suitable to reptilize pigs in rural areas for two months. Tr2 China Feed Industry Information Network - based on feed, serving animal husbandry