Yak feed composition
The yak is the calf who pointed out that after weaning, the yak's age depends mainly on the length of breast-feeding time. The period of breast-feeding is generally 3-6 months. It is fully developed, has low resistance to adverse environmental conditions, is weak in adaptability, and the gastrointestinal mucosa is easily penetrated by bacteria. It has poor skin protection and insufficient nervous system response. The calf's feeding is divided into two stages according to its physiological characteristics: primary and lactation. The calf is born 1 to 5 days after birth. This period is mainly fed colostrum, because colostrum is more dry matter than regular milk. Nutrition is rich, especially protein is 4 times higher than normal milk, 10 times higher than albumin and globulin, so calves must eat colostrum within 2 hours of birth, and the sooner the better.
In addition to feeding normal milk during lactation, supplementation is started, especially the supply of plant feed can promote the development of gastrointestinal and digestive glands, especially for the development of the rumen. The nutritional level of supplementation is high, and the calf's growth and development are fast. On the contrary, the level of nutrition is low and development is delayed. A large number of high-nutrition feed supplements, although growing rapidly, are not conducive to rumen development, while the cultivation costs are also high. Ten days before feeding, high-quality hay was fed to allow them to feed freely. After 20 days, they began to feed succulent feeds. After 2 months of age, they were fed with silage, and they had to prevent diarrhea.
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