With the rapid increase in the yield of dairy cows, the problem of breeding cows has become increasingly prominent, especially since the post-partum complications, it has become a widespread breeding problem for high-yielding dairy herds, directly affecting the reproductive rate and the economic benefits of cattle farms. The main factors that cause dairy cows to have postpartum complications are the following.
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1. nutrition. High or low nutritional levels or nutritional imbalances are the most important factors affecting post-partum dairy cows. Inadequate energy supply during the perinatal period can lead to the body condition not being able to recover in time, and delaying the recovery of the uterus. In severe cases, it leads to nutritional deficiency ketosis. Conversely, if the perinatal energy is excessive, leading to obese prenatal obesity, postpartum will use more body fat for milk production, and severe cases will cause consumption of ketosis, which will also lead to postpartum compulsions and low conception rates.
2. disease. Some of the diseases that occur during the perinatal period of cows can also lead to long periods of postpartum cramps. When a cow has a metabolic disease such as ketosis, it is easy to cause tediousness and low conception rates. Dairy cow metritis can also cause cows to be boring, and no placenta is the main cause of metritis.
3. Hormone secretion disorders. High-yielding dairy cows are more vulnerable than low-yielding dairy cows.
4. Environmental stress. High-yielding dairy cows are subject to various stresses during the perinatal period, and the more adverse stress the cow receives, the greater the negative impact, which can lead to a series of chain reactions, which ultimately leads to decreased milk production and decreased reproductive performance. Therefore, all kinds of adverse stress in dairy cows during the perinatal period should be minimized.