Raw bean curd residue is rich in nutrients, and its dry matter contains 29% of crude protein, 34% of nitrogen-free extract, 8% of crude fat, and calcium and phosphorus. It is a good feed for pigs. 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. Some rural chicken farmers in distillers' grains have to 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, and it will affect the digestion and absorption of other nutrients in the feed. After the lees are fed, the chicken will cause digestive disorders and malnutrition. Non-sterilized eggshell eggshells are a good calcium supplement. Feeding eggs and shells to livestock and poultry is easy to absorb. It can increase the egg production rate, prevent livestock rickets and prevent chickens from producing 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. Raw soybean meal First, raw soybean meal is poor in palatability; Second, raw soybean meal contains anti-nutritional factors. Feeding pig chicken directly to it is not conducive to the digestion and absorption of protein, which 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. In addition, some farmers mistakenly believe that the greater the amount of fishmeal is, the better. In fact, this is 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.
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