1. Build a awning. Build awnings above the playground on dairy farms, households, and sports fields. In fields and households without playgrounds, horizontal visors or shade nets are installed above the cowshed windows, or hay is stacked on the roof, and plaster walls can also be sprayed with lime slurry to reduce heat radiation. Planting trees and flowers around the barn to improve the environment of the barn.
2. Keep the cowshed well ventilated. Open doors and windows to enhance air convection. Ventilation holes are reserved at the cowshed roof, and large ventilation fans and electric fans with large air volume are installed inside. When the temperature is higher than 29°C and the humidity is more than 50%, it is necessary to reduce the temperature from 5 o'clock in the morning to 1 o'clock in the night.
3, do a good job in cattle and environmental health. During the hot summer season, flushing and brushing the cow body regularly with water can reduce body surface temperature and reduce heat stress. In addition, pests such as mosquitoes and flies will interfere with the normal rest of dairy cows, and even cause the spread of the disease. A 1%-1.5% trichlorfon solution can be used to spray the barn and the surrounding environment to kill insects such as mosquitoes and flies.
4, provide enough water. Dairy cows need a lot of water, and they need 70-120 liters of water every day and night. In hot summer, cows will drink more water. In hot weather, give cows fresh, clean drinking water. In the absence of tap water and well water, pay attention to the quality of the water source. After the water is clarified, add 10 grams of potassium permanganate to sterilize 100 kg of water. Add ten drops of water or Huoxiangzhengqi water to drinking water, which has obvious anti-heatstroke effect.
5, scientific collocation feed. Increase dietary nutrient content and reduce the amount of roughage feed. Increase the proportion of concentrate (but not more than 60%); increase dietary protein levels, protein content can be increased to 18%-20% of dietary content, feed green and blue high-quality forage, feed more carrots, bean dregs, beer slag, etc. feed.
6, adjust the feeding time and feeding method. Dairy cows are the peak stage of body heat production 2-3 hours after eating. Therefore, the amount of night feeding should be increased in the summer, especially for coarse materials. They should be fed at 20:00-6:00, and they can be fed with bad residue and prevent heatstroke at noon. Medicines and feeds can feed 60%-80% of the diet at night. Feeding methods can increase the number of feeds, less feed Tim, 4 times a day feed is appropriate.
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