[Chlamydia as the cause of abortions in horses].

This study explores the role of Chlamydia in causing abortions in horses, utilizing animal experiment and embryonated eggs between 1982 and 1989. The researchers found Chlamydia in 16 out of 59 investigated equine fetuses, revealing that it might have a significant effect on the incidence of equine abortions.

Research Method

• The study was conducted over a span of seven years from 1982 to 1989.
• For the purpose of this research, 59 equine fetuses were examined to detect the presence of Chlamydia.
• The investigation methods used were adequate for embedding the complex process of identifying Chlamydia in fetuses. These included using animal experiments and embryonated eggs.

Findings

• Chlamydia was found in 16 out of 59 equine fetuses. This equates to around 27.1% of the sample population.
• The affected fetuses originated from eight different stud farms.
• The most noticeable macroscopic changes observed in the infected fetal organs were large-scale hemorrhages.
• From a histological perspective, there were serious abnormalities in the blood vessels of various organs.

Serological Investigation

• In addition to the examination of fetuses, researchers also tested the blood serum from clinically healthy, pregnant mares in six of the stud farms where Chlamydia was previously isolated.
• The serum tests were conducted over a period of two years (1989-1990).
• Using the complement fixation test, they discovered varying levels of antibodies in four of the stud farms, with titres ranging between 1:10++ and 1:40.
• This suggests not only a prevalence of Chlamydia in these populations but also a resultant immune response in the horses.

Conclusion

• The outcome of the investigation indicates n connection between Chlamydia and incidents of abortion in horses.
• It points out the necessity for further research on the causative role of Chlamydia in equine abortions, to summarize more precise relations and establish concrete preventative measures.