Causes of abortion in female dogs

1. Among infectious cases, abortion caused by Brucella canis is the most common. This bacteria is highly contagious, especially in beagles. Sick dogs can also infect people, which can cause miscarriages in pregnant women. Secondly, Staphylococcus, E. coli and Salmonella infections can cause miscarriage in bitches. Occasionally, infection with canine distemper virus can cause miscarriage.

2. Lack of progesterone. Generally, it is caused by incomplete formation of the corpus luteum in pregnancy, and there are also cases of early degeneration of the corpus luteum.

3. Miscarriage may occur when the fetus is dead or abnormal. When the heart of a pregnant female dog fails, such as heartworm disease, fatty heart and other diseases, the circulatory system disorder of the female dog directly affects the material exchange with the fetus. As a result, the fetus is hypoxic or carbon dioxide accumulates, causing Fetal death. Generally speaking, inbreeding and infectious diseases in early pregnancy can easily lead to deformed fetuses and miscarriage.

4. Traumatic stimulation, improper feeding and management of pregnant female dogs, medical errors, etc. can also cause miscarriage.

Symptoms of abortion in female dogs

1. Abortion caused by Brucella usually occurs between the 30th and 57th days of pregnancy; abortion caused by incomplete luteal formation is common between the 2nd and 5th weeks of pregnancy; and Early luteal involutional abortion is more common in the 6th to 7th week of pregnancy. In all cases of abortion, 80% of female dogs occur on the 45th to 55th day of pregnancy. (Although there are cases of miscarriage due to early embryonic death on the 10th to 35th day of pregnancy, the discharged fetal membranes and fetus are often eaten by the female dog and are not easy to detect).

2. Usually, after a pregnant female dog has an abortion, secretions continue to flow from the vagina for a long time (1 to 6 weeks), and the aborted fetus dies quickly.

3. The incidence of fetal malformations in fetuses infected with infectious diseases in early pregnancy is very high. Most of the malformed fetuses are chest underdevelopment, sternum deformation, etc.

4. Non-infectious abortions often occur suddenly without early symptoms.

Diagnosis of abortion in female dogs

1. The diagnosis of Brucella infection can be confirmed by isolation and culture of the aborted fetus or placenta (or serum agglutination test in female dogs).

2. Suspected Toxoplasma gondii infection can be diagnosed by examining fetal organs, especially fetal protozoa or tissue sections. Diagnosis can also be made by maternal complement fixation reaction.

Treatment of abortion in female dogs

1. Abortion in dogs often occurs suddenly and is almost impossible to control. To prevent miscarriage, bitches should be checked for infectious diseases such as brucellosis before breeding. For female dogs with a history of miscarriage, progesterone can be injected during pregnancy to prevent miscarriage.

2. For dogs suspected of progesterone deficiency, use progesterone oil 5 to 25 mg for intramuscular injection 2 to 3 times a week; or use continuous progesterone preparation 25 mg for intramuscular injection once a week.

3. If the sick dog is weak, timely infusion and sugar supplementation are recommended. When the body temperature rises and the blood picture shows inflammatory changes,Inject antibiotics.

4. For symptoms of fetal dysfunction, retained placenta or uterine bleeding, oxytocin and other oxytocin should be injected (2-10 units per dose). In addition to injecting antibiotics, the fetus' reproductive tract is also flushed with 0.1% potassium permanganate solution.

Note

The above treatment methods should generally be performed by hospital doctors. Inexperienced owners should not handle them by themselves to avoid delaying treatment time and causing harm to the dog.