The incidence of miscarriage of cows by Feng Yajie, a member of the Agricultural Committee of Jiamusi City, is generally about 10%. According to the causes of miscarriage, abortion can be divided into infectious abortion and non-infectious abortion. Most abortions are non-infectious abortions. Non-infectious abortion can be classified according to the causes of abortion:
1 Nutritional abortion, due to lack of nutrition, lack of abortion caused by certain vitamins and trace elements.
2 Toxic abortion due to miscarriage caused by feeding moldy, deteriorating feed or eating some pesticides.
3 Injury abortion, abortion due to abrupt and sudden movement of pregnant cows, abdomen top impact, and extrusion.
4 drug-induced abortion, due to oral or injection of certain drugs, hormones, vaccines, etc. caused by abortion.
Symptomatic abortion, abortion due to genital disease, fetal membrane disease, and non-infectious systemic disease. According to the age of the aborted fetus and its change, abortion is generally divided into the following types:
1 recessive abortion, also known as early embryonic death. Occurs at 1-2 months of age in early pregnancy. Recessive abortion accounts for 25% of abortions.
2 Small yields, that is, the discharge of unchanged stillbirths. Occurs in the second and third trimesters of pregnancy and is the most common type of miscarriage. Small production accounts for 49.8% of abortions.
3 dry fetus, the fetus after death in the uterus, due to the closure of the cervix, the fetal water is absorbed and the mummification occurs. Most stillbirths occur at 4-5 months of pregnancy, and dry tires account for 24% of abortions.
4 The fetus immersed in the solution. After the fetus died, non-corruption bacteria invaded the uterus. The soft tissue of the fetus was dissolved and flowed out, and the skeleton was trapped in the uterus, accounting for 0.9% of the abortion.
5 fetal corruption, fetal death due to spoilage bacteria into the uterus, so that the fetus corrupt decomposition, the gas generated by the corruption of the fetus to increase the size of the cause of dystocia, is the most dangerous abortion, clinically rare, accounting for about abortion 0.3%.
1 Nutritional abortion, due to lack of nutrition, lack of abortion caused by certain vitamins and trace elements.
2 Toxic abortion due to miscarriage caused by feeding moldy, deteriorating feed or eating some pesticides.
3 Injury abortion, abortion due to abrupt and sudden movement of pregnant cows, abdomen top impact, and extrusion.
4 drug-induced abortion, due to oral or injection of certain drugs, hormones, vaccines, etc. caused by abortion.
Symptomatic abortion, abortion due to genital disease, fetal membrane disease, and non-infectious systemic disease. According to the age of the aborted fetus and its change, abortion is generally divided into the following types:
1 recessive abortion, also known as early embryonic death. Occurs at 1-2 months of age in early pregnancy. Recessive abortion accounts for 25% of abortions.
2 Small yields, that is, the discharge of unchanged stillbirths. Occurs in the second and third trimesters of pregnancy and is the most common type of miscarriage. Small production accounts for 49.8% of abortions.
3 dry fetus, the fetus after death in the uterus, due to the closure of the cervix, the fetal water is absorbed and the mummification occurs. Most stillbirths occur at 4-5 months of pregnancy, and dry tires account for 24% of abortions.
4 The fetus immersed in the solution. After the fetus died, non-corruption bacteria invaded the uterus. The soft tissue of the fetus was dissolved and flowed out, and the skeleton was trapped in the uterus, accounting for 0.9% of the abortion.
5 fetal corruption, fetal death due to spoilage bacteria into the uterus, so that the fetus corrupt decomposition, the gas generated by the corruption of the fetus to increase the size of the cause of dystocia, is the most dangerous abortion, clinically rare, accounting for about abortion 0.3%.
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