There are several ways to solve the problem of insufficient protein feed: (1) A large number of protein feed crops are grown and fully utilized. Soybean, peanut, rapeseed, cotton and other processing byproducts such as soybean cakes, peanut cakes, rapeseed cakes, cottonseed cakes, etc. are rich in crude protein, and have good palatability, and are excellent protein feeds. However, it is a pity that some places use it as Fertilizer. It should be used to feed chickens first and chicken manure should be used as fertilizer. This will not only increase the meat and egg products, but will not reduce the fertilizer efficiency. The hay powder made from leguminous grasses such as wolfberry and clover also contains more crude protein and is also a Good Quality protein feed. In addition, perennial grasses are highly adaptable, and can be planted throughout China, with high yields and rich protein content. Fresh grasses contain 3% to 4.6% protein, which is also a protein supplement feed. (2) Vigorously collect high-quality leaves such as legumes for processing into leaf powder. The content of crude protein in high-quality young leaves, especially leguminous leaves, such as Amorpha fruticosa, Robinia pseudoacacia, Leucaena leucocephala, Lespedeza jasminoides, and Rhizoma arborescens, is approximately 20%, and the crude protein content of 2 kilograms of Amorpha folium is equivalent to 1 kilogram of bean cake. According to experiments conducted by the Institute of Animal Husbandry and Veterinary Medicine of the Beijing Academy of Agricultural Sciences, good results have been obtained with the use of 4% to 8% of amorpha leaf meal to feed young chicks, young chickens and laying hens. (3) Make full use of slaughterhouses, meat processing plants, and industrial by-products to widen the sources of animal protein feeds. The livestock, poultry or other waste products that cannot be used for human consumption in the slaughterhouses and meat processing plants can be processed into bone meal, blood meal, hot shoe powder and feather powder. Silkworm cocoons are also good animal protein feeds. . (4) Rational use of aquatic resources to increase animal protein feed. China has a long coastline, many freshwater fish farms, and abundant aquatic resources. The rational processing and utilization of aquatic products is an effective way to increase the source of animal proteins. Some chicken farms are also very good at processing chickens with cooked fresh fish, shrimp, small crabs or aquatic products. (5) Industrial synthetic proteins will open up new avenues for protein feed sources. The use of brewing, sugar and other industrial wastes as raw materials for the cultivation of yeast feed and the use of petrochemical products for the production of synthetic proteins will open new avenues for the source of protein feed.
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