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How to increase dairy milk production in summer
Summer is a hot and humid season, with mosquitoes and flies, causing the appetite of dairy cows to decrease, causing a lack of energy, and a significant drop in milk production. According to the survey, every summer, milk production is generally reduced by about 15%. Therefore, in order for cows to maintain high yields in summer, the following measures must be taken. 1. Adjusting the temperature of the cowhouse: The most suitable temperature in the year of milk is 8 to 20°C. When the temperature in the house exceeds 30°C, the milk yield decreases by 4% for every 1°C increase. If the temperature exceeds 36°C, each rises. At 1°C, it drops by about 5%. Therefore, we must first increase the air circulation inside the house and open the cowshed doors and windows. Second, install an electric fan and let the cow bathe to absorb body heat and cool down. 2. Reduce indoor humidity: The weather is hot and humid, and milk production can be reduced by 5 to 10%. Therefore, the barn must be kept dry, and there should be no accumulation of water. The ventilation in the house should be good and the relative humidity of the barn should be controlled under 80%. 3. To build shady arbors: In summer, in order to avoid direct sunlight, cows can be transferred to shelters for feeding or resting. It is also possible to rest cows under the shade of the trees to cool off. 4. Adjust dietary nutrients: Adjust the diet structure appropriately to reduce the proportion of crude fiber. Concentrate diet contains more nutrients such as energy and protein. Feed quantity is increased by 15% to 20% than usual, and more high quality grass is fed. , vegetables, melons and other juicy feed, so that the dry mix with the right mix. 5. Improve the feeding method: increase the number of feedings appropriately, increase feeding at night, feed early or late, or change condiments to congee, so as to make up for the lack of feeding due to high temperature anorexia. Its milk production. 6. Give enough cool water: Dairy cows need more water in summer. If there is insufficient drinking water, it will reduce appetite, reduce the resistance to disease, and affect the milk production. Lactating cows can supply 3 to 5 times the amount of milk to drink, keeping drinking water cool and allowing cows to drink freely. 7. Do a good job in sanitation: Before feeding and milking, wash the body of cows with well water. For individual cows who are afraid of heat, wash the head and chest of cows with cold water to reduce the body temperature of cows and keep the body clean. Simultaneously, the feces should be promptly removed, and sterilized once a week with 5% of sura or 2% caustic soda solution. It is also possible to sterilize some of the plant ash or lime powder in the cowshed to deodorize and remove moisture to reduce the disease. occur. 8. Prevent interference by mosquitoes and flies: In the summer, mosquitoes and flies bite cows, disturbing the rest of dairy cows, affecting dairy cows' milk production, and also spreading diseases. Aerosol insecticides can be sprayed on the cattle body and its surroundings to eliminate mosquitoes and flies. In addition, observe the daily appetite, rumination, feces, and mental status of the cow. Poor appetite, abnormal excrement, and depressed spirits should promptly take effective measures, provide treatment and special care to ensure the safety of dairy cows and produce more milk in summer.