Ovarian status and pathomorphological changes in the uterus of goats during false pregnancy

The aim of the study is to investigate the ovarian status and pathomorphological changes in the uterus of goats with hydrometra. The study was conducted at the Department of Veterinary Medicine of the Russian State Agrarian University - Moscow Timiryazev Agricultural Academy, in the veterinary laboratory of pathomorphological diagnostics Laboklin and on the basis of the commercial goat dairy farm Eco Farm Klimovskaya LLC from 2020 to 2024. The ovarian status and pathomorphological changes in the uterus with pseudo-pregnancy (hydrometra) were studied in 3 Saanen goats aged 2-4.5 years, in which hydrometra was diagnosed 20-30 days before slaughter during transabdominal ultrasound scanning of the internal genital organs. In the pre-slaughter period, anaphrodisia and a pronounced increase in abdominal volume were recorded in the goats. The average age of the goats was (2.6 ± 0.43) years. Two goats were killed on average (107.0 ± 14.0) days after the last unsuccessful mating (93 and 121 days, respectively). It was not possible to determine the timing of the manifestation of the last stage of excitation of the sexual cycle in one goat. This goat was killed 30 days after the initial diagnosis was made on the hydrometra. The post-slaughter material was used to analyze the morphofunctional state of the ovaries and study pathomorphological changes in the uterus of goats with false pregnancy. The development of this pathology in goats is associated with the formation and long-term persistence of the corpora lutea of pseudogestation in the ovaries and the accumulation of a transparent watery transudate in the uterine cavity in the volume of (5.6 ± 1.1) l. The accumulation of a significant amount of serous fluid in the uterine cavity leads to an increase in intrauterine pressure, excessive stretching and thinning of the wall of the horns and the body of the uterus, a reduction in the thickness of the endo- and myometrium and atrophic processes in the endometrial glands.