The rubbish residue is a by-product of the production of tofu and soymilk. The content of crude protein and crude fat is high and it is a kind of inexpensive feed. Tofu residue to feed livestock and poultry to control the dosage, the best heat cooked before feeding, in order to enhance palatability, improve protein absorption and utilization. The amount of fresh pig curd residue fed to the piglets is 5% to 8% of the diet. The amount of feed in the middle pig stage should be controlled within 15% of the diet, and the finishing pigs should be controlled within 20% of the diet. Feeding with a certain proportion of corn, bran and mineral materials, and feeding some green feed to meet the growth needs of pigs. Don't use frozen bean curd residue to feed the pigs in winter, so as not to cause pig digestive dysfunction, or to use rancid decomposed bean curd residue to feed the pigs. The use of bean curd residue to feed chicken chicks should be controlled within 6% of the diet, the chicken phase should be controlled at 6%-15% of the diet, and the chicken phase should be controlled at 10% of the diet. 12%, the amount of chickens used to control the diet of 15% -18%. The use of crude fiber by ducks and geese is higher, and the amount of bean curd residue in the diet can be increased by 5% compared to the amount used in chicken diets. Vitamins are a type of trace organic substances that humans and animals must obtain from food in order to maintain normal physiological functions. In terms of physiological functions, vitamins are neither a raw material for tissues nor a substance for supplying energy, but they are an indispensable substance for the body. It has many types and different chemical structures. Most of them are the components of the coenzyme (or prosthetic group) of certain enzymes. They are the indispensable compounds for maintaining the normal growth (growth, health, reproduction and production function) of the body. It plays a catalytic role in the body to promote the synthesis and degradation of major nutrients (proteins, fats, carbohydrates, etc.), thereby controlling metabolism. Vitamins are essentially low-molecular organic compounds. They cannot be synthesized in the body, or the amount synthesized is difficult to meet the needs of the body, so they must be supplied from the outside. The daily requirement of vitamins is very small (usually measured in milligrams or micrograms). They are neither a raw material for body tissues nor a substance for energy supply in the body. However, they do not regulate material metabolism, promote growth and development, and maintain physiological functions. Vitamin,Vitamin C,Vitamin E,Postnatal Vitamins Xi'an Gawen Biotechnology Co., Ltd , https://www.ahualyn-bio.com