The selection of fine varieties used black-and-white cows, Jerseys and other large-sized, fast-growing, strong suitability, and high-quality hybrid cross-breeding cows. It has been proved that the milk yield of hybrid improved dairy cows is 80%-200% higher than that of ordinary dairy cows, and the milk fat percentage is increased by 0.4%-2%.
It is reported that at present domestic dairy cows produce about 4-5 tons of milk each year, while foreign countries have more than 10 tons. Feeding concentrates supply nutrients that are rich in protein and energy, such as nutrient balance. In particular, high-protein concentrates such as cottonseed cakes, rapeseed cakes, fish meal, and corn are fed. Practice has shown that feeding cows daily 1.8 kg of cottonseed cake, 3.14 kg of prolific milk; cows fed 0.75 kg of fishmeal every day during the lactation period, can increase milk production 1.36 kg. The condiment is fed with porridge, with cold porridge in summer and warm porridge in winter. However, high-yielding dairy cows are susceptible to mastitis and foot rot disease. Therefore, attention should be paid to the proportion of concentrates and the ratio of calcium and phosphorus to the dietary ratio when feeding concentrates. The green food for the green tea contains a lot of vitamins, minerals and other nutrients, and it should be supplied with sufficient green and blue succulent feed such as ryegrass, pine vanilla, tender citrus leaves and green leaves. In late summer and early autumn, 50 kg of corn stalks, 0.2-0.5 kg of salt, and 75-180 kg of water are mixed and fed to silage, which can significantly increase milk production. In addition, high-quality green material is the key to the high yield of dairy cows. At present, dairy farms in Guangdong Province mostly use forages containing high protein and sugar, such as imported ryegrass, hybrid pennisetum and sweet corn. The feed additive feeds a proper amount of additives to supplement the deficiency of nutrients such as potassium, sodium, and calcium in the feed. The addition of 1.5% sodium humate to the basal diet of each cow resulted in a 1.7% increase in milk production and a 10.5% increase in milk fat percentage. 25 grams of copper sulphate, 5 grams of manganese sulfate, 2 grams of zinc sulfate, 1 gram of cobalt chloride, and 1 gram of potassium iodide per ton of silage are added, and the milk yield can be increased by more than 10%.
According to foreign reports: Dairy cows are fed with 100 grams of baking soda per day during the lactation period. As a result, the milk production peak is advanced and the milk yield is increased by 30%. Supplemental light illumination has a great influence on the production and lactation of cows, and a reasonable extension of the illumination time not only enables the cattle to increase the weight gain rate, but also increases the milk yield.
The tests showed that the cows did not change the feed during the first 60 days of lactation and allowed the cows to receive light for 16 hours per day, which was 10% to 30% higher than that of cows receiving natural light in the winter. Increase the exercise every morning to allow the cows to move around for 1 hour or allow the cows to move freely within the cowsheds and feeding areas. Shepherding cows often suffer from rots and dystocia at the time of delivery because of reduced exercise. Therefore, increasing the exercise is to enhance the disease resistance of cows. One of the measures to improve lactation capacity. Science milking science milking method can stimulate the nerve stimulation of the breast, promote breast blood circulation, accelerate breast expansion, speed up the milk excretion process, increase milk production by 10% -20%. The method is to wash the breast with warm water at 45-50°C, massage both sides of the breast with the left and right hands to massage from top to bottom, breast expansion can be milked, and the whole process of milking is about 10 minutes. The milking requirements are stable and fast. net. If it is mechanical milking, it should pay more attention to disinfection measures, so that the sick and healthy separation, a disinfection of each cow pa, and the pace of the milking machine should be uniform, otherwise it is easy to cause the occurrence and spread of mastitis in dairy cows. Carefully manage the supply of feed and drinking water to be clean; cowshed should be kept dry, be cool in winter and cool in summer, and strictly disinfected; regular brushing of cattle, keeping the skin clean, increase blood circulation; regular inspection and treatment of diseases, each year to open spring to repair Hoof; Scientifically choose breeding time, adjust the tillering period, avoid summer calving; thiazole and other insecticides are taken within 48 hours after the cows' delivery; do a good job in disease prevention, do a good job in bovine tuberculosis, brucellosis The diagnosis and treatment of diseases such as malignancy should also strengthen the monitoring of cow mastitis, dystocia and foot rot disease.
It is reported that at present domestic dairy cows produce about 4-5 tons of milk each year, while foreign countries have more than 10 tons. Feeding concentrates supply nutrients that are rich in protein and energy, such as nutrient balance. In particular, high-protein concentrates such as cottonseed cakes, rapeseed cakes, fish meal, and corn are fed. Practice has shown that feeding cows daily 1.8 kg of cottonseed cake, 3.14 kg of prolific milk; cows fed 0.75 kg of fishmeal every day during the lactation period, can increase milk production 1.36 kg. The condiment is fed with porridge, with cold porridge in summer and warm porridge in winter. However, high-yielding dairy cows are susceptible to mastitis and foot rot disease. Therefore, attention should be paid to the proportion of concentrates and the ratio of calcium and phosphorus to the dietary ratio when feeding concentrates. The green food for the green tea contains a lot of vitamins, minerals and other nutrients, and it should be supplied with sufficient green and blue succulent feed such as ryegrass, pine vanilla, tender citrus leaves and green leaves. In late summer and early autumn, 50 kg of corn stalks, 0.2-0.5 kg of salt, and 75-180 kg of water are mixed and fed to silage, which can significantly increase milk production. In addition, high-quality green material is the key to the high yield of dairy cows. At present, dairy farms in Guangdong Province mostly use forages containing high protein and sugar, such as imported ryegrass, hybrid pennisetum and sweet corn. The feed additive feeds a proper amount of additives to supplement the deficiency of nutrients such as potassium, sodium, and calcium in the feed. The addition of 1.5% sodium humate to the basal diet of each cow resulted in a 1.7% increase in milk production and a 10.5% increase in milk fat percentage. 25 grams of copper sulphate, 5 grams of manganese sulfate, 2 grams of zinc sulfate, 1 gram of cobalt chloride, and 1 gram of potassium iodide per ton of silage are added, and the milk yield can be increased by more than 10%.
According to foreign reports: Dairy cows are fed with 100 grams of baking soda per day during the lactation period. As a result, the milk production peak is advanced and the milk yield is increased by 30%. Supplemental light illumination has a great influence on the production and lactation of cows, and a reasonable extension of the illumination time not only enables the cattle to increase the weight gain rate, but also increases the milk yield.
The tests showed that the cows did not change the feed during the first 60 days of lactation and allowed the cows to receive light for 16 hours per day, which was 10% to 30% higher than that of cows receiving natural light in the winter. Increase the exercise every morning to allow the cows to move around for 1 hour or allow the cows to move freely within the cowsheds and feeding areas. Shepherding cows often suffer from rots and dystocia at the time of delivery because of reduced exercise. Therefore, increasing the exercise is to enhance the disease resistance of cows. One of the measures to improve lactation capacity. Science milking science milking method can stimulate the nerve stimulation of the breast, promote breast blood circulation, accelerate breast expansion, speed up the milk excretion process, increase milk production by 10% -20%. The method is to wash the breast with warm water at 45-50°C, massage both sides of the breast with the left and right hands to massage from top to bottom, breast expansion can be milked, and the whole process of milking is about 10 minutes. The milking requirements are stable and fast. net. If it is mechanical milking, it should pay more attention to disinfection measures, so that the sick and healthy separation, a disinfection of each cow pa, and the pace of the milking machine should be uniform, otherwise it is easy to cause the occurrence and spread of mastitis in dairy cows. Carefully manage the supply of feed and drinking water to be clean; cowshed should be kept dry, be cool in winter and cool in summer, and strictly disinfected; regular brushing of cattle, keeping the skin clean, increase blood circulation; regular inspection and treatment of diseases, each year to open spring to repair Hoof; Scientifically choose breeding time, adjust the tillering period, avoid summer calving; thiazole and other insecticides are taken within 48 hours after the cows' delivery; do a good job in disease prevention, do a good job in bovine tuberculosis, brucellosis The diagnosis and treatment of diseases such as malignancy should also strengthen the monitoring of cow mastitis, dystocia and foot rot disease.
Electronic Cigarette of Various of products, including Mechanical Mod Kit series and Mechanical Mod Tube series, provide product pictures and basic parameters, we are committed to supply chain management, we are a professional Chinese manufacturer of Mechanical Mods Kit and we are looking forward to your cooperation.
Electronic Cigarettes Vape,Hybrid Original Vape,Box Kit Vape,Good Starter Vape
Dongguan Marvec Electronic Technology Co.,Ltd , http://www.marvec-cn.com