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Dairy Dry Milk Management
Cows entering late lactation and dry milk need not only store a portion of nutrients to compensate for nutrient consumption, accumulate stamina and restore constitution, but also need proper nutrition to meet the rapid growth needs of the fetus. Therefore, it is necessary to store a portion of the nutrient before calving. Stop milk production in time, ie dry milk. The management of dry dairy cows should pay attention to the following aspects. 1. Quick stop-drying: A method of completely stopping lactation within 2-3 days. Dairy cows under 13 kilograms of milk, as long as the feed is stopped and the milking is stopped immediately, the final milking can be completed after 2-3 days; for high-yielding dairy cows, it is necessary to stop the feeding of concentrates, limit drinking water, etc. to make milk. The amount is reduced and the milk is stopped immediately after the milk production declines. After the final milking, soak the nipples with 4% sodium hypochlorite or 0.3% chlorhexidine solution. 2. Prevention of mastitis: Cows have hidden or subclinical mastitis infections during lactation, and many cattle often develop mastitis after delivery. For this reason, drug treatment should be performed during the dry period. After the last milking, the four milk areas were injected into the breast with an antibiotic that cures mastitis. 3. Control the amount of concentrate to prevent over-fertilization: Studies have confirmed that the milk use rate of the lactating period is higher than that of the dry period. Therefore, improving the body condition of the dairy should be carried out in the lactation period instead of feeding more of the concentrate in the dry period. method. Cows are prone to mastitis, ketosis, puerperal fever, obese cow syndrome, and true gastric transposition before and after calving. These are all related to overfeeding energy feeds and insufficient roughage during the dry period. Therefore, the amount of concentrated feed should be limited in the diet, while the amount of roughage (quality hay) and low-moisture silage should be increased, which is particularly important for cows with excellent body condition. 4. Prepare for prenatal preparation: When the abdominal circumference of gestating cows does not increase with the age of gestational age, examination should be conducted in time to prevent the occurrence of pregnancy interruption and prolonged puerperal interval. When the cow's abdominal circumference is too large and her breasts are edema, her standing time should be reduced and the cow should be released outside the shed in advance and allowed to move freely. In the case of childbirth, special care should be set up to strengthen the observation of delivery and prepare for delivery.