{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,5]],"date-time":"2026-09-05T00:35:47Z","timestamp":1788568547189,"version":"build-2803163510"},"reference-count":58,"publisher":"Veterinary World","issue":"4","license":[{"start":{"date-parts":[[2020,4,24]],"date-time":"2020-04-24T00:00:00Z","timestamp":1587686400000},"content-version":"vor","delay-in-days":114,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2020,4,24]],"date-time":"2020-04-24T00:00:00Z","timestamp":1587686400000},"content-version":"am","delay-in-days":114,"URL":"http:\/\/veterinaryworld.org\/"},{"start":{"date-parts":[[2020,4,24]],"date-time":"2020-04-24T00:00:00Z","timestamp":1587686400000},"content-version":"tdm","delay-in-days":114,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Vet World"],"published-print":{"date-parts":[[2020]]},"abstract":"<jats:p>Aim: The study aimed to determine both macroscopic and microscopic changes in the reproductive organs of sterile cows. Materials and Methods: Careful clinical and gynecological examinations (using histological and histochemical methods) of organs of culled sterile cows, such as ovaries, oviducts, the uterus, pars anterior adenohypophysis, thyroid body, and adrenals, were performed. Results: It was found that 20% of the examined cows in the farms of the Republic of Bashkortostan had pathology of reproductive organs. Ovarian dysfunction was diagnosed in 31% of sterile cows. Histological and histochemical studies revealed that high atresia of all types of ovarian follicles is associated with hypofunction of the ovaries. This was related to stromal vascular dystrophy and was accompanied by atrophy of thecal endocrine elements, resulting in decrease of endocrine and generative function of ovaries. Conclusion: Essential elements of the ovarian dysfunction pathogenesis are disorders of the functional system \"ovary-pituitary-adrenal-thyroid gland\" and the abnormality of utero-ovarian relationships, which differ significantly during hypofunction, in case of follicular cysts, and in case of persistent corpora lutea. This difference in abnormalities of utero-ovarian relationships should be considered when developing diagnostic and treatment methods and determining preventive measures.<\/jats:p>","DOI":"10.14202\/vetworld.2020.774-781","type":"journal-article","created":{"date-parts":[[2020,4,24]],"date-time":"2020-04-24T13:31:22Z","timestamp":1587735082000},"page":"774-781","source":"Crossref","is-referenced-by-count":6,"title":["Clinical and structural changes in reproductive organs and endocrine glands of sterile cows"],"prefix":"10.14202","volume":"13","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1873-2851","authenticated-orcid":false,"given":"Evgeny","family":"Skovorodin","sequence":"first","affiliation":[{"name":"Department of Morphology, Pathology, Pharmacy, and Non-communicable Diseases, Federal State Budget Educational Institution of Higher Education Bashkir State Agrarian University, Ufa, Russia."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1608-6278","authenticated-orcid":false,"given":"Ravil","family":"Mustafin","sequence":"additional","affiliation":[{"name":"Department of Morphology, Pathology, Pharmacy, and Non-communicable Diseases, Federal State Budget Educational Institution of Higher Education Bashkir State Agrarian University, Ufa, Russia."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4712-4540","authenticated-orcid":false,"given":"Svetlana","family":"Bogoliuk","sequence":"additional","affiliation":[{"name":"Department of Morphology, Pathology, Pharmacy, and Non-communicable Diseases, Federal State Budget Educational Institution of Higher Education Bashkir State Agrarian University, Ufa, Russia."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2785-8499","authenticated-orcid":false,"given":"George","family":"Bazekin","sequence":"additional","affiliation":[{"name":"Department of Morphology, Pathology, Pharmacy, and Non-communicable Diseases, Federal State Budget Educational Institution of Higher Education Bashkir State Agrarian University, Ufa, Russia."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4575-8136","authenticated-orcid":false,"given":"Valian","family":"Gimranov","sequence":"additional","affiliation":[{"name":"Department of Morphology, Pathology, Pharmacy, and Non-communicable Diseases, Federal State Budget Educational Institution of Higher Education Bashkir State Agrarian University, Ufa, Russia."}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"5308","published-online":{"date-parts":[[2020,4,24]]},"reference":[{"key":"ref0","unstructured":"Gabitov, I., Mudarisov, S., Gafurov, I., Ableeva, A., Negovora, A., Davletshin, M., Rakhimov, Z., Khamaletdinov, R., Martynov, V. and Yukhin, G. 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