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Adjusting the density of cowsheds After the dairy cows have all entered the pens, care must be taken to ensure that the cowshed is well ventilated and the humidity is not too high. The relative humidity should not exceed 55%. If the humidity is too high, there will be a strong external stimulus to the cow, which will affect its milk production. In severe cases, it will also infect some fungal diseases.
Drinking temperature Temperature of lactating dairy cows Drinking water temperature: 1 Normal drinking water temperature: Cold water is the cooling factor, cow drinking cold water is the consumption of body heat, affecting the production of milk, such as drinking water below 8 °C, the milk production is significantly reduced. In winter, the drinking temperature of dairy cows is maintained at 9°C~15°C. Milk cows that drink 0°C~2°C water can produce 0.57 liters of milk per day, which means that the milk production rate is increased by 8.7%. 2 Congee temperature: In the winter, the cows are fed with hot porridge at about 38°C, which can enhance cold resistance and increase the milk production rate by 10%. 3 Drinking wheat bran water temperature: The cow feels thirsty after losing a lot of water due to loss of postpartum, and the body temperature is lower. At this point drink bran water instead of drinking water, the temperature is higher than body temperature 1 °C ~ 2 °C, there is added body fluids, the effect of warming the body.
Yak drinking temperature, general drinking water temperature: calf body temperature is higher than that of adult cattle, so drinking water temperature should be higher than adult cattle, general drinking water to 35 °C ~ 38 °C appropriate. Calf milk temperature: When calf is artificially breast-feeding, no matter milk or regular milk, it should be fed and cooled to 35°C~37°C after heating and sterilizing. High or low has adverse effects.
Diversification of feed into the winter, should adjust the ratio of feed in a timely manner, and strive to diversify. In terms of supply of concentrate feed, the protein feed will not change, and the supply of corn will increase by 20% to 50%, thus increasing the proportion of energy feed. In the aspect of roughage, it is best to feed silage, micro-feed or brewer's grains, etc. Instead of summer and autumn cows eat green juicy feed.
A well-matched dairy cow is usually a "summer with spring, winter with autumn," winter mating pregnant, can avoid hot summer calving, and is conducive to high yield dairy cows. Therefore, dairy farmers should seize the golden opportunity in the winter to do a good job of breeding cows, increase the rate of quaternization, and lay a good foundation for the successful birth and healthy growth of new calves.
Brushing the body of the cow to brush the body not only keeps the cow clean, but also promotes skin blood circulation and metabolism, helps regulate body temperature and enhances disease resistance. Therefore, brush twice a day, morning and evening, 3 minutes to 6 minutes each time, carefully brushing all parts of the body, not omissions.
Feeding Management Techniques for Winter Cows
Cowhouse temperature cows are cold and heat-resistant, but cold has a certain limit. The most suitable temperature for dairy cows is 12°C~14°C. The most suitable temperature for pregnant cows and lactating cows is 16°C~20°C; the temperature of lactating dairy cows is high. At 24 °C or less than -4 °C, milk production decreased; the optimum temperature for calves is 35 °C ~ 38 °C.