Postpartum paralysis is common in dairy cows. What are the causes of postpartum paralysis in dairy cows?

This disease usually occurs within one week after delivery. If the condition is acute, cows will have short-term excitement at the beginning of the disease within one or two hours after delivery, and their reaction to the outside world will be slow, and then there will be symptoms such as bleeding, depression, muscle twitching, inconvenient movement, limb weakness, etc., mainly due to improper feed management and simple feed during pregnancy, resulting in malnutrition, lack of calcium, phosphorus, trace elements and vitamins, and lack of exercise or light, resulting in long-term low blood calcium in dairy cows.

Improper feeding management. Because of the great energy loss after delivery, cows lose more water. Coupled with the increase of milk production, especially the highest calcium content discharged from colostrum, the proportion of trace elements such as calcium and phosphorus in the body is out of balance, and the key to maintaining calcium balance in cattle is feeding management in hay period. There is a truth that you are willing to feed cattle and sheep. Make enough forage and feed reserves for cattle to spend the long winter and early spring. Especially pregnant cows, will wander around for food like other cows during the day.

? Lactation paralysis of dairy cows, also known as parturition paralysis and milk fever, mainly occurs in dairy cows. Cows, sheep and pigs can all happen. Lactation paralysis of dairy cows is characterized by hypothermia, quadriplegia, inability to lie down, loss of consciousness and paralysis of pharynx, tongue and intestine. The causes of postpartum paralysis of dairy cows are mostly related to the decrease of blood calcium concentration before and after delivery and hypoxia caused by excessive excitement of cerebral cortex. When dairy cows give birth, the blood calcium concentration drops sharply, which leads to the disorder of normal physiological function of dairy cows, and then manifests as general production paralysis.

In addition, postpartum calcium regulation disorder will also lead to low blood calcium level, and thyroid dysfunction will lead to decreased thyroid hormone secretion, leading to multiple organ anemia, which in turn will lead to brain hypoxia and anemia, with typical paralysis, limbs bending under the body, head and neck bending backwards to the chest. Paralysis began to have a brief excitement, and then lay on the ground and got up again. When he stood up, his hind legs were weak, and then he could not afford to fall.