Which feeds should not be directly fed to livestock and poultry

1. Do not use raw bean curd residue to feed pigs. In winter, some pig farmers often use raw soybean curd residue to feed their pigs. Raw bean curd residue is a by-product of tofu processing. It is rich in nutrients. Its dry matter contains 29% of crude protein, 34% of nitrogen-free extract, 8% of crude fat, and calcium and phosphorus. It is good for pigs. feed. In order to give full play to the role of tofu-fed pigs, bean curd must be boiled before feeding, and should not be fed raw, and should not exceed 30% of the total amount fed. 2. Do not use distillers' grains to feed chickens. Some chicken farmers buy distiller's grains to feed chickens. This is very dangerous. Because the chicken can not use a large amount of crude fiber contained in the lees, it will affect the digestion and absorption of other nutrients in the feed. After eating the lees, chickens can cause digestive disorders and malnutrition. 3. Do not use non-sterile egg shells to feed the eggs of livestock and poultry is a good calcium feed, feed the eggs and shells, easy to absorb, can increase egg production rate, prevent livestock and poultry rickets, prevent Chickens produce soft shell eggs. However, fresh egg shells are susceptible to deterioration and carry pathogens. The ingestion of livestock and poultry into untreated eggshells can easily lead to disease. Therefore, eggshells should be promptly dried and crushed, strictly disinfected, and properly stored for use. 4. Do not use raw soybean meal to feed pigs. First, raw soybean meal is poor in palatability. Second, raw soybean meal contains anti-nutritional factors. Feeding pigs directly to pigs is not conducive to the digestion and absorption of proteins, and can easily cause diarrhea and affect normal growth and development. Therefore, raw soybean meal must be steamed in a cage for 30 minutes before the anti-trypsin is destroyed. 5. Do not overfeed fish meal Some farmers mistakenly believe that the more fish meal the better, which is actually unscientific. Feeding more fishmeal will not only increase the cost, but also cause muscle and stomach erosion. In severe cases, it will also cause death.