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 […]
1. Principles of formulation The formulation principle should conform to the Feed Nutrition Composition Table and the Dairy Cattle Feeding Standard, and be combined with the actual production of dairy cows to design the dietary formula. Diet formulation should ensure rich and comprehensive nutrition, a reasonable proportion of concentrate and roughage, so that the nutrition […]
1. Selecting breeds and individuals with high milk fat rateFor different breeds of dairy cows, there are also differences in milk yield and milk composition. Usually, the milk yield and milk fat rate of dairy cows are negatively correlated, that is to say, the higher the milk yield of dairy cows, the lower the milk fat […]
Epidemic bovine leukemia was first described by Knuth and Volkmann in the late 19th century. In 1969, Miller of the United States isolated leukemia virus from bovine blood lymphocytes. In 1974, the disease was also found in China and spread in China, causing serious losses to the cattle industry. The main symptoms of this disease […]
Frostbite of breast Dairy cows have no hair and the skin is thin, a large area of contact with air, low temperature, strong wind, cold bed and lying on the ground, and improper use of non-winter nipple disinfectant can easily cause frostbite. Frostbite causes chapped breast (head) skin of dairy cows. It is easy to […]
Guide: Many parents have been sensitive to the sugar in formula milk powder and afraid that can not buy milk powder that is suitable for children. Today, we will summarize the "sugar" category that may appear in milk powder. What is the sugar in the milk powder? Is it a necessity for the baby's growth and development? Before talking about this […]