In the pig production process, many pig farmers (especially specialized households) understand and master new technologies. Such as: change the clinker thin feed for the raw material wet feed or dry feed raw materials. I think this is a gratifying thing. The scientificity of feed for pigs should be affirmed, because feeds are not only laborious, time consuming and laborious, but also can cause dramatic changes in protein structure, especially lysine, arginine, histidine, and protein in proteins. Both the amino acid and phenylalanine were destroyed, and thus the utilization and biological value of feed protein also changed. Commonly used feeds, such as:Grain seed cereals, oil cakes, animal feed, distiller's grains, brewers' grains, etc. Once heated, their proteins degenerate, resulting in a decrease in the biological value of the protein. For example: oil cakes, meat powder, bone meal, fish meal, blood meal, dairy products, etc. Heat treatment will destroy essential amino acids, thus reducing the biological value of the protein by about 25%. Therefore, it is undoubted that pig feeds are scientifically justified and confirmed by production practices. However, according to the author's knowledge, some pig farmers have memorized that pig feed has a good feeding effect. All feeds are fed raw. Soybeans (soybeans, black beans) and peas are crushed and incorporated into the diet. . This is wrong and it is very wrong. why?
Because soybean (soybean, black bean) contains a trypsin inhibitor, it will stop the digestion and utilization of soybean protein in pigs. The presence of this trypsin inhibitor in pig diets will not only reduce the digestion and utilization of protein in the soybean itself, but will also reduce the digestion and utilization of the entire dietary protein. If it is heated and cooked, the trypsin inhibitor can be destroyed, thereby increasing the biological value of the soybean protein. For example, the biological value of raw soybean protein is 57%, and when heated, it is increased to 64%. Another example: proteins of some leguminous crops, especially peas, are better digested and utilized after decocting and ripening. The utilization rate of nitrogen can be increased by 20% and the pig's weight gain can be increased by 25%.
Some people may also ask that it is correct to feed raw tuber succulent feed. The author thinks this problem is not absolute either. Take the potato for example, it's better to feed it than to feed it. Cooked potatoes increased protein digestibility from 60.8% to 66.9% and digestible protein utilization increased from 31% to 40%. To remind everyone to pay attention is that whether it is soybeans (soybeans, black beans) and peas, or potatoes, heating decoction, the time should not be too long, it can be cooked. If the boiling time is too long, the protein will denature.
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