The milk produced 5-7 days after the cows give birth is called colostrum. The colostrums produced by calves cannot be eaten, and the colostrum is made into sour colostrum and will be well utilized.
Production Method Collect healthy cows (do not add antibiotics to the milk of cows). The produced colostrum should be placed in clean plastic buckets or jars, stirred well, and then capped and fermented. Fermentation is ideal at room temperature at 10-21°C or milk temperature at 25-40°C. When the temperature is around 30°C in the summer, the milk container can be placed in a clean indoor dark place.
Quality Identification Fermented good colostrum like tofu brain-like, light yellow, acid and aroma, high acidity, taste like vinegar-like, sometimes a small amount of whey precipitation; poorly fermented acid colostrum is more dilute, can not be blocked (Pinate, flocculent), with varying degrees of acidity, pungent odors, and even odor, reddish color, and sometimes grayish. The fermented sour colostrum can be stored in another jar for up to 3 weeks at low temperature. The colostrum with poor acidity cannot be eaten.
Feeding Methods Acid colostrum should be diluted with 38:1 water (2 parts of acid colostrum plus 1 serving of hot water) before being fed with yak. ​​The yak can be fed, but the calf must be eaten fresh colostrum. After the job. After that, if there is enough acid colostrum, the slightly larger amount of virgin colostrum can be increased. One kilogram of raw sour colostrum was fed every day and fed twice after adjustment.
The ratio of cows fed with fermented colostrum to cows fed with fermented colostrum was significantly lower than that of cows fed regular milk, and the daily weight gain was increased. The survival rate of calves was greatly improved, and the adult calves had good production performance. Acid colostrum has a health-care effect on larger calves; it is simple, easy to use, uses waste, reduces production costs, reduces pollution, and improves economic efficiency.
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