First, use fine varieties to cultivate high-yield cattle breeding can be used in the production of high-yielding bull hybrid breeding. In addition to its advantages of long-term preservation, fine frozen semen has the advantages of large surface area, low cost, and increased production. Most of the breeding bulls breeding at the breeding sites are relatively excellent, have a high genetic transmission capacity of milk production, have a greater impact on future generations, and are currently the main measures to improve the genetic progress of dairy cows. Second, do a good job breeding breeding rate of dairy cows is one of the important factors limiting the yield of dairy cows. The quality of dairy cow breeding is closely related to the economic benefits of keeping dairy cows. In dairy breeding, the most critical indicator is the post-natal mean fasting days. The dairy farms with good management and management have an average fasting day of about 105 days. Most dairy farms have 120-140 days. Whenever there is more than one empty day, it will reduce the income of about 20 yuan. This is only a loss caused by empty arms. This shows that the importance of reproduction in improving the efficiency of dairy cattle breeding. Therefore, we should pay attention to overcome infertility in production and increase the reproductive rate of dairy cows. The masses said: “Capturing milk first and catching milk†and “bidding cows to have milk†are just such a principle. Under the premise of using qualified frozen essence, comprehensive technical measures should be used to increase the rate of cold allocation and conception; Direct examination, comprehensive judgment, timely insemination; Second, postpartum discretionary administration of drugs to prevent bacterial infection and promote uterine recovery; Third, prevention and treatment of reproductive diseases, overcome infertility, empty cows, normal cows, produce normal cows and reproductive diseases, infertility Cows should be treated differently and adopt appropriate technical measures to ensure the normal circulation of lactation cycle. Third, the rational allocation of feed, to regulate the feeding of a reasonable mix of feed, can reduce feed costs, dairy cattle feed is divided into roughage, concentrate feed and auxiliary materials, relatively speaking, the nutritional content of refined feed is high and comprehensive, but the price is high, the grain is fine More than half of the feed. Although the nutritional content of roughage and auxiliary materials is relatively low, the price is relatively cheap. For this reason, raising dairy cows must have good economic benefits. It is necessary to make full use of concentrate feeds and auxiliary materials to reduce consumption of concentrates in order to reduce the unit cost of fresh milk. On the basis of rational allocation of feeds, to conduct standard feeding, we must rationally formulate feeding programs, based on the standards of dairy cows and the nutritional value of forage feeds, and properly formulate feeding programs in accordance with nutritional needs in line with the diet, so that a variety of species, comprehensive nutrition , quality standards, and ensure that all year long feeding, milk feeding, the proportion of fine coarse material, timely addition of various additives, and second, focus on improving the summer feeding management. Cows are particularly sensitive to high temperatures, and a high temperature of 35°C can reduce milk production by 20%. Therefore, we should pay attention to improving the microclimate regulation of cowsheds and performing sunstroke-preventing cooling. At the same time, we should increase the proportion of energy and protein in the diet of dairy cows, extend the feeding time, add porridge, increase the amount of drinking water, and reduce stress factors. Good environmental hygiene. IV. Timely elimination of low-yielding cows Low-yielding cows have high costs and low benefits, especially when feed costs currently account for 70% of the total cost. Because the consumption of low-yielding dairy cows is almost the same as that of high-yielding dairy cows in terms of feed manpower, barn, and management costs, if adult cows are less than 10% of the average milk production of adult cows or if one cow is lower than adult cows More than 30% of the average milk production should be eliminated. V. Doing a good job of “three diseases†for cows Preventing “three diseases†in cows, namely limb and foot disease, metritis, and mastitis, is a frequent disease and common disease that affects dairy cows' milk production. It can cause 30-60% of dairy cows to lose production. In production, the veterinary Health Care system should be strictly implemented and the combination of prevention and feeding management should be adopted, which can effectively prevent the occurrence of cow disease.
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