1. CarbohydratesCarbohydrates include non-fiber carbohydrates and fibers. Among them, non-fiber carbohydrates include starch, sugar, and pectin. The proportion of non-fiber carbohydrates in the diet of dairy cows should be 20%-45%. This range is determined by the proportion of concentrate to roughage in the diet. For diets with less roughage, non-fiber carbohydrates are required to be […]
The reproductive performance of dairy cows is directly related to the production level of dairy cows. Many factors are affecting the reproductive performance of dairy cows in actual production, and there are very complex relationships among them, including breed, age, genetic factors, diseases, feeding management, environment, and nutrition. 1. Effect of Energy on Reproductive PerformanceEnergy […]
1. Genetic factorsVariety differences. Different breeds of dairy cows have great differences in milk yield and milk fat rate. Compared with local breeds, the milk yield of highly cultivated breeds is significantly higher. Besides, there is an inverse relationship between milk yield and milk fat rate, that is, milk yield of dairy cows is higher and […]
1. Influencing factors of calving intervalMany factors are affecting the calving interval in the production of dairy cows, mainly due to inadequate feeding and management of dairy cows, inappropriate breeding environment, poor postnatal care and so on. Dairy cows are cold-resistance and not heat-resistance. Under the high-temperature environment in summer, dairy cows are prone to […]
1. Strengthen night feedingBecause cows are ruminants, and their intake is larger than other animals, and their special digestive system determines that the faster digestion of cows. Therefore, we should provide sufficient feed for cows, besides feeding an adequate amount of grass during the day, night feed should be added. An appropriate amount of forage […]
1. Time and method of scoring dairy cow's body conditionTo grasp the suitable condition of dairy cows, the body condition of dairy cows should be graded in different periods, and effective methods should be adopted to timely adjust the unsuitable condition of dairy cows. The scoring time of dairy cow's body condition was carried out […]
1. Ensuring a comprehensive dietDairy cows in the last 20 days of lactation, to ensure that the loss caused by the previous lactation period can be fully compensated while reserving enough nutrients for the next lactation peak. At this stage, dairy cows should increase the feed of concentrate, absorb enough energy, avoid glycogen depletion during […]
1. Health statusBefore mating, dairy cows must be checked to ensure that they are healthy and disease-free, and their reproductive organs and ovulation physiological activities are normal. Some dairy cows are physically healthy on the surface, but their reproductive organs suffer from diseases such as ovarian inflammation, chronic uteritis and ovarian cysts, which make it […]
Ⅰ. Feeding of Dairy Cows in the High Lactation PeriodThe peak lactation period is the most difficult stage for raising cows, because the lactation is at its peak, and the feed intake of cows has not yet reached its peak. The feeding peak lagged behind the lactation peak for about one and a half months, […]
1. LactationFor newborn calves, amniotic fluid and mucus in the mouth and nose should be cleaned immediately. To ensure that calves can breathe normally, then cut off the umbilical cord. After that, 7% of iodine liquor was applied to the abdomen around the umbilical cord and umbilical cord for disinfection for 3 days, and attention […]
1. Reasonable Control of Concentrated Feed ConsumptionThe nutritive value of concentrate is higher, but it is not that the higher the proportion of concentrate in dairy cow's diet, the better. Although the nutritive value of roughage is higher, its price is correspondingly higher. If the proportion of concentrate in the diet is too high, on […]
1. Do a good job in the preservation of forage leaves The nutritive value of the leaf part of the whole forage is higher. The nutritive components of all kinds of forage grass, hay and straw are higher in the leaves. For example, the nutrients in the leaves of alfalfa hay are much higher than […]