Winter has a great impact on the production and milk production performance of dairy cows, often resulting in decreased milk production, frozen dairy cows, frostbite and other problems. In order to reduce the danger of cold to cows, it is necessary to strengthen management measures in winter to increase the breeding efficiency.
First, the greenhouse temperature is best for dairy cows to develop the performance of the environment temperature is about 10 °C. For this reason, winter cows should be kept in warm sheds, excreted twice a day and replaced with litter according to their breeding conditions.
2. When the temperature inside the cold and warm house is too high or too low, it must be properly adjusted. When the temperature drops abruptly, the rear window and ventilation holes should be blocked in time and the insulation of the shed should be improved. In particular, the sheds for perinatal cows, new calves, and high-yielding cattle should be properly warmed to ensure that the temperature of the sheds is between 15°C and 17°C. In addition, cows should not spend more than 6 hours in the daytime in the stadium, preferably 3 hours in the morning and in the afternoon when the temperature is high. After the cow enters the shed, it is necessary to ensure that the ventilation in the shed is good and the relative humidity should not exceed 55%.
Third, feeding warm materials Winter feeding cows, we must pay attention not to feed frozen fodder and water, feeding warm water temperature material, to minimize its physical energy consumption. Cows should not drink at temperatures below 15°C. In order to induce dairy cows to drink more water in winter, the concentrate can be prepared to feed porridge at about 30°C. Silage moisture, pay attention to prevent freezing. In addition, it is necessary to increase the amount of quality hay properly, and feed no less than 3-5 kg ​​per cow per day.
Fourth, timely mating cows is generally "summer with spring, winter with autumn students." Therefore, we must seize the right time to do a good job in winter breeding. Attention should be paid to observing the estrus situation of dairy cows and find that estrus dairy cows are bred in time. For postpartum dairy cows, we must strive to conceive within 3-4 months after childbirth. For cows suffering from reproductive diseases, timely treatment and reduce empty cows.
Fifth, prevention and treatment of disease First, we must strengthen feeding and management to enhance the disease resistance of cows. The idea of ​​prevention, prevention and control should be taken to prevent cow disease. Second, we must conduct regular disinfection, do a good job of immunization of vaccines to prevent the occurrence of infectious diseases. Third, timely treatment of common diseases, such as cow mastitis, metritis, etc., in order to promote the milk of dairy cows.
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