In the production process of raising beef cattle, some professional households often feed more concentrates in order to make the beef cattle grow faster and longer, especially adding a large amount of high-quality protein feed such as bean cake, peanut cake and soybean. Adding protein feed to beef cattle diets is not impossible. However, it should be fed according to the specific conditions and needs of the beef cattle. It is not added as much as possible. Because beef cattle have a different amount of nutrients, especially protein, during their lifetime. More added, beef cattle can not absorb and digest, not only cause feed waste, increase feed costs, but also increase the burden on the gastrointestinal tract of cattle, can also cause disease; less added, can not meet the needs of beef cattle growth and development, the impact of protein The fattening effect and the quality of the beef. So, how much protein is added to the beef cattle feed?
The shelf cows are fattened in the cowshed and have a shelf weight of about 300 kg. The proportion of protein feed in the diet can account for 10% to 13%. After that, the body weight gradually increases, and the protein feed is in the diet. Can be reduced. By the end of fattening, the content of protein feed can be 10% of the diet.
The yak before the age of 3 months is still not perfect because of its rumen development and rumen microflora. Therefore, the protein nutrition of yak is similar to that of single-stomach livestock, and it cannot synthesize certain essential amino acids in the body. Therefore, when feeding yak 3 months old, the feed should be carefully mixed with a variety of protein feeds (such as: bean cake, cottonseed cake, etc.). A variety of protein feeds are combined, and the amino acids they contain can complement each other and make up for each other, which is a balancing requirement. If the bean cake and the cottonseed cake are matched in a ratio of 1:1, it is better as a protein supplement feed for the yak than the single-feed bean cake, because the bean cake contains more lysine and tryptophan, and the methionine is lacking. By combining these two, amino acids can complement each other. If you mix some of the protein-containing feeds such as bran and valerian powder, the feeding effect will be better. During the growth of yak, the body protein increases rapidly, the protein requirement is large, and the younger the age, the greater the amount of protein needed, and the proportion of protein feed in the diet can account for 20%.
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