Cattle and Sheep 100 Questions Ⅵ

What is the Reason Why the Afterbirth of Ewes and Cows cannot be Expelled?

The main reasons why the afterbirth cannot be discharged can be divided into the following aspects:

1. The maternal animal's immunity is low, unable to recognize that the afterbirth is a foreign body, so it can not be discharged, which is generally related to the nutritional deficiency of prenatal ewes.

2. Weak uterine contractions, resulting in the inability to expel the afterbirth, lack of prenatal nutrition, thinness or obesity, lack of exercise, oversized fetuses, dystocia, etc. can easily lead to inability to expel the afterbirth.

3. Inflammation, placental inflammation, and endometritis can easily lead to adhesion between the maternal placenta and the fetal placenta, resulting in the inability to expel the afterbirth.

4. Stress, such as sudden noise in the cattle farm, sudden replacement of silage, change of feeding and management personnel, etc.

5. Severe mildew of roughage.

Prevention methods:

1. Appropriate feed should be provided according to the nutritional needs of female animals at different stages to ensure balanced nutrition and not be too fat or too thin.

2. Give the female animal moderate exercise before birth.

3. When breeding, consider the size of the fetus when considering breed selection, and do not cause dystocia due to excessive fetus.

4. To prevent inflammation, long-acting oxytetracycline is inserted into the uterus after delivery, which can not only prevent inflammation, but also facilitate the discharge of the afterbirth.

5. Feeding female animals bran salt calcium water after delivery can help restore physical fitness and expel the afterbirth.