Making full use of colostrum to breed calves

Colostrum is not suitable for human consumption and is not suitable for processing. Therefore, it is reasonable to keep excess colostrum and continue to feed calves. This will not only help promote the growth of yak, but also increase economic income and reduce the cost of cultivation.

The use of fermented colostrum to feed yak colostrum can be refrigerated and ready for fermentation. Refrigeration is easy to handle in the cold winter and spring seasons, and summer and autumn still require certain equipment. Fermentation requires neither equipment nor seasons, and fermentation has many advantages.

Fermented colostrum is fermented by milk under the influence of lactic acid bacteria and turned into yogurt. After fermented colostrum, its acidity can reach 70～90T. Because milk is fermented, the total amount of free amino acids and essential amino acids increase by four times as much as normal milk. Therefore, in addition to the original colostrum characteristics, fermented colostrum also increases the amount of lactic acid. Lactic acid not only imparts a fresh, mellow flavor to yogurt, but also allows milk protein to form a fine curd, which becomes more easily digested and absorbed. It also stimulates the peristalsis of the stomach wall and promotes the secretion of gastric juice, thereby enhancing digestion. It can increase the utilization of calcium, phosphorus and Other minerals and inhibit the growth and reproduction of harmful microorganisms. It has been reported that 90 grams more are added to the fermented colostrum than to the yak that normally drinks milk. By the time of weaning at 75 days, the ability to feed on feed was twice as high as that of calves feeding on regular milk.

Production and use of fermented colostrum Put the remaining milk within 5 days after the cow is delivered into a plastic bucket (not using an iron container) and let it ferment naturally. In summer, when the temperature is between 25°C and 30°C, fermentation can be successful in three days. In the winter and spring seasons, fermentation takes longer. In order to speed up the fermentation, it can be placed indoors or next to the stove. Colostrum that is well-fermented has a slightly yellowish color and forms a lump or floccule on the upper part, and a sour taste on the lower leaching liquor. The fermented colostrum is stored at a low temperature for use.

When feeding yaks, the well-coled colostrum should be shaken up and down, remove the required amount, and then add 1/2 to 1/3 of warm water, so that it rises to 38 °C ~ 40 °C, you can feed calves . Calves can be fed fermented colostrum from the age of 6 days. After 10 days of age, rice soup or cornmeal porridge can also be added to the fermented colostrum (the cornmeal is boiled with boiled water and mixed with milk one or two times a day, three times a day). After 10 days of age, the calves were trained to eat mixed concentrate and hay, and they were weaned at 75 days or 90 days of age.

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