{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,27]],"date-time":"2026-01-27T01:53:06Z","timestamp":1769478786605,"version":"3.49.0"},"reference-count":39,"publisher":"FapUNIFESP (SciELO)","license":[{"start":{"date-parts":[[2025,1,1]],"date-time":"2025-01-01T00:00:00Z","timestamp":1735689600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2025,1,1]],"date-time":"2025-01-01T00:00:00Z","timestamp":1735689600000},"content-version":"am","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2025,1,1]],"date-time":"2025-01-01T00:00:00Z","timestamp":1735689600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/100019644","name":"Ministry of Agriculture of the Republic of Kazakhstan","doi-asserted-by":"crossref","award":["BR22887106"],"award-info":[{"award-number":["BR22887106"]}],"id":[{"id":"10.13039\/100019644","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Braz. J. Biol."],"abstract":"<jats:p>Abstract The research aims to study the dynamics of reproductive system pathologies in mares of Kazakh and Mugalzhar horse breeds and their impact on the reproductive traits of the breeding stock. The object of the research was horses of the Kazakh and Mugalzhar breeds. The formation of experimental groups was carried out using the pair-analog method. It was found that the frequency of detection of infertile mares is 13.8-25.0%. Subinvolution of the uterus from the total number of infertile mares is 8.3-10.7%, endometritis - 16.6-23.3%, atony and hypotonia of the uterus \u2013 8.3-13.3%, ovarian diseases \u2013 19.6-43.4%, other diseases \u2013 10.0-39.4%. The pregnancy rate of mares of the Kazakh and Mugalzhar breeds was 78.8%. The frequency of abortions, weakly born, and stillborn foals was 2.8%. Successful foaling was 76.0%. It was established that successful foaling in mares under 5 years old is 65.6%, 6-9 years old - 79.5%, and 10 years and older - 74.6%. Pregnancy rates are lowest in mares under 5 years of age (74.4%), compared to 6-9 years of age (88.0%) and 10 years of age and older (82.0%). Milk productivity analysis of first-lactation mares revealed significantly higher yields on farms specializing in mare\u2019s milk production, accompanied by slight improvements in fat and protein content. The findings highlight the strong influence of management practices, nutritional status, and timely reproductive monitoring on the reproductive success of local horse breeds.<\/jats:p>","DOI":"10.1590\/1519-6984.300038","type":"journal-article","created":{"date-parts":[[2026,1,26]],"date-time":"2026-01-26T15:13:26Z","timestamp":1769440406000},"source":"Crossref","is-referenced-by-count":0,"title":["Effective methods of horse reproduction in the production of mare\u2019s milk"],"prefix":"10.1590","volume":"85","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4684-7114","authenticated-orcid":false,"given":"D.","family":"Baimukanov","sequence":"first","affiliation":[{"name":"Institute of Plant Biology and Biotechnology,  Republic of Kazakhstan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5293-2190","authenticated-orcid":false,"given":"I.","family":"Beishova","sequence":"additional","affiliation":[{"name":"Non profit JSC \u201cZhangir Khan West Kazakhstan Agrarian Technical University\u201d,  Republic of Kazakhstan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5457-1720","authenticated-orcid":false,"given":"A.","family":"Shamshidin","sequence":"additional","affiliation":[{"name":"Non profit JSC \u201cZhangir Khan West Kazakhstan Agrarian Technical University\u201d,  Republic of Kazakhstan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2670-4834","authenticated-orcid":false,"given":"K.","family":"Aubakirov","sequence":"additional","affiliation":[{"name":"Non profit JSC \u201cZhangir Khan West Kazakhstan Agrarian Technical University\u201d,  Republic of Kazakhstan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8746-7484","authenticated-orcid":false,"given":"M.","family":"Shamekova","sequence":"additional","affiliation":[{"name":"Institute of Plant Biology and Biotechnology,  Republic of Kazakhstan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2309-265X","authenticated-orcid":false,"given":"O.","family":"Alikhanov","sequence":"additional","affiliation":[{"name":"M. Auezov South Kazakhstan University,  Republic of Kazakhstan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7955-6340","authenticated-orcid":false,"given":"M.","family":"Kargaeva","sequence":"additional","affiliation":[{"name":"Non profit JSC \u201cZhangir Khan West Kazakhstan Agrarian Technical University\u201d,  Republic of Kazakhstan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9924-5136","authenticated-orcid":false,"given":"D.","family":"Karibayeva","sequence":"additional","affiliation":[{"name":"Non profit JSC \u201cZhangir Khan West Kazakhstan Agrarian Technical University\u201d,  Republic of Kazakhstan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7887-3376","authenticated-orcid":false,"given":"U.","family":"Kaisarova","sequence":"additional","affiliation":[{"name":"Non profit JSC \u201cZhangir Khan West Kazakhstan Agrarian Technical University\u201d,  Republic of Kazakhstan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"530","published-online":{"date-parts":[[2025]]},"reference":[{"key":"ref1","series-title":"Genetic improvement of the horse","author":"ARNASON T.","year":"2000"},{"issue":"1","key":"ref2","first-page":"90","article-title":"The creation of the bestau factory type of the kazakh dhzabe horse breed and a linear breeding as a kazakh horse breed productivity increasing method in the northeast Kazakhstan conditions","volume":"9","author":"ASSANBAYEV T.","year":"2021","journal-title":"AD ALTA: Journal of Interdisciplinary Research"},{"issue":"12","key":"ref3","doi-asserted-by":"crossref","first-page":"2148","DOI":"10.3390\/genes14122148","article-title":"The genetic diversity of horse native breeds in Russia","volume":"14","author":"ATROSHCHENKO M.","year":"2023","journal-title":"Genes"},{"issue":"2","key":"ref4","doi-asserted-by":"crossref","first-page":"216","DOI":"10.3844\/ajavsp.2025.216.221","article-title":"Intensification of mare\u2019s milk production at designed kumiss farms","volume":"20","author":"AUBAKIROV K.A.","year":"2025","journal-title":"American Journal of Animal and Veterinary Sciences"},{"issue":"1","key":"ref5","doi-asserted-by":"crossref","first-page":"61","DOI":"10.3844\/ajavsp.2022.61.65","article-title":"Patterns of growth and development of young herd horses of Eurasia","volume":"17","author":"AUBAKIROV K.A.","year":"2022","journal-title":"American Journal of Animal and Veterinary Sciences"},{"issue":"4","key":"ref6","doi-asserted-by":"crossref","first-page":"402","DOI":"10.3844\/ojbsci.2023.402.410","article-title":"Productivity of Horse and Camel Breeds from the Arid Zone of the Republic of Kazakhstan","volume":"23","author":"BAIMUKANOV A.D.","year":"2023","journal-title":"Online Journal of Biological Sciences"},{"key":"ref7","series-title":"Fundamentals of experimental business in animal husbandry. 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