1. Under normal circumstances, if the cow is not sick, do not use antibiotics. If it is not possible to use antibiotics, it is best to use injection, not oral, if the dairy cow is not serious, it is best to wait until after the stop treatment, so as not to affect the milk production.
2. Cows are polygastric animals. When administered orally, antibiotics can kill some of the beneficial microorganisms in the rumen of dairy cows, causing an imbalance in the microbial community in the rumen of dairy cows. Prior to the establishment of rumen microflora in the rumen microflora, in order to prevent disease and promote growth, it may be appropriate to feed some antibiotics, do not use antibiotics when 7-8 months old.
3. The number of antibiotics given to cows should also be minimized. Because cows are timid and very sensitive, stimulation at the time of injection can affect milk production in dairy cows. Cow vaccination technology will also affect dairy cows' milk production, especially during the hot summer months. Therefore, joint vaccines should be used as far as possible.
4. The proportion of salt in concentrates should be controlled at 0.7-0.8%. In order to supplement the deficiency of salt in concentrate feed, a trough can be set in the dairy stadium, and salt or raft salt bricks can be placed in the trough for the dairy cows to feed freely.
5, the initial age of dairy cows should be 18-20 months, weighing about 380 kg, two indicators to be comprehensive consideration, both to achieve sexual maturity, but also to achieve body maturity.
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