Symptoms of miscarriage in dogs

Symptoms of miscarriage in dogs include slight restlessness, contraction of the abdominal wall, discharge of secretions from the vagina, and eventually the passing of a live or dead fetus. However, due to differences in the period of occurrence, causes, and the mother's own disease resistance, the process of miscarriage, changes in the fetus, and clinical symptoms are not exactly the same.
In early miscarriage, the fetus is often absorbed. Miscarriage in the second and third trimesters, or the discharge of a dead fetus, or the discharge of putrefactive liquid and decomposition products from the vagina after the putrefactive decomposition of the fetus. Expelled aborted fetuses are often eaten by the bitch herself before being seen, making them difficult to detect. The putrefactive fluid discharged from the vagina is difficult to distinguish from pyometra with an open cervix. Therefore, the diagnosis of this disease must be combined with a detailed breeding history and medical history.
B-ultrasound has great advantages in diagnosing miscarriage. Because it can not only find out whether there is a fetus, but more importantly, it can also observe the development of the fetus and judge whether the fetus is alive or dead based on whether the fetus has a heartbeat. If necessary, some laboratory tests can be performed, such as blood thyroxine measurement, plasma progesterone level measurement, etc.

Causes of miscarriage in dogs

Abortion can be divided into infectious abortion, parasitic abortion and ordinary abortion. Canine brucellosis and canine herpes virus disease are the main causes of infectious abortion in dogs. The main parasitic disease that causes miscarriage in dogs is toxoplasmosis, which is a protozoal disease caused by Toxoplasma gondii. The causes of ordinary abortion are complex, including abnormal embryonic development due to germ cell defects, excessive number of fetuses, abnormal placenta, endocrine disorders (hypothyroidism, insufficient progesterone secretion), stress factors (high temperature, fright, fighting) , hunger), nutritional factors (nutrition deficiency or excess, overweight), chronic systemic diseases, reproductive organ diseases and improper medication, etc.

Measures to prevent miscarriage in dogs

Strengthen the feeding and management of pregnant dogs so that they can maintain optimal health and avoid injury and external stimulation. In the early stages of pregnancy, try to avoid the use of chemical drugs to prevent the occurrence of diseases and poisoning.
After the bitch with habitual abortion becomes pregnant again, progesterone (2mg/kgbw) can be injected intramuscularly at the appropriate time, 2 to 3 times a week. When the fetus has died and miscarriage is unavoidable, the mother should be encouraged to expel the fetus and its uterine contents. Prostaglandin (PG) F2a, oxytocin or estrogen can be used.
Bitches that have symptoms of poisoning and shock or are in poor general condition need timely infusion and sugar supplementation. At the same time, antibiotics should be used appropriately according to changes in body temperature and blood images.