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Milk productivity, reproductive performance, hematological and clinical indicators of holstein, brown swiss, simmental, and jersey breeds of cows under Armenian agro-climatic conditions

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dc.contributor.authorMinasyan, L.M.
dc.contributor.authorVardanyan, H.R.
dc.contributor.authorChitchyan, Zh.T.
dc.contributor.authorZadayan, M.H.
dc.contributor.authorSimonyan, J.T.
dc.contributor.authorShahazizyan, N.A.
dc.contributor.authorMirzoyan, M.S.
dc.contributor.authorSimonyan, L.L.
dc.date.accessioned2025-08-25T07:11:57Z
dc.date.available2025-08-25T07:11:57Z
dc.date.issued2025
dc.descriptionReceived: May 9th, 2025 ; Accepted: August 4th, 2025 ; Published: August 18th, 2025 ; Correspondence: mhzadayan@gmail.comeng
dc.description.abstractThe research was conducted on the farms of ‘Himnatavush’ Foundation and ‘Agroholding Armenia’ LLC in the Tavush and Lori regions of the Republic of Armenia. This study aims to fill a research gap regarding the adaptability of elite dairy breeds in the South Caucasus under variable agro-climatic conditions. The scientific and practical goal of the work is to conduct, for the first time, a comparative study of the milk productivity, reproductive capacity, and hematological and clinical indicators of Holstein, Brown Swiss (Schwyz), Simmental, and Jersey cattle breeds imported into the Republic of Armenia from various European countries in recent years, as well as cows born and raised locally (local reproduction). The study is being carried out in two farms located in different agro-climatic zones of the Republic. At the farms of ‘Agroholding Armenia’ LLC and the ‘Himnatavush’ Foundation, the age at first calving of both imported full-grown cows of Holstein, Brown Swiss, Simmental, and Jersey breeds and their locally born and raised first-calf heifers corresponded to breed-specific norms. The service period for cows of all breeds exceeded the desirable range (80–90 days), ranging from 93.8 to 115.6 days. However, the reproductive capacity coefficient ranged between 92.9–97.3, which is considered a good indicator. Hematological and clinical parameters of all cows remained within physiological norms. Jersey cows exhibited slightly better adaptation markers. The study confirms the successful acclimatization of these breeds to Armenia’s diverse agro-climatic zones and supports the continued use of these high-yielding breeds for sustainable dairy development.eng
dc.identifier.citationMinasyan, L. M., Vardanyan, H. R., Chitchyan, Z. T., Zadayan, M. H., Simonyan, J. T., Shahazizyan, N. A., Mirzoyan, M. S., & Simonyan, L. L. (2025). Milk productivity, reproductive performance, hematological and clinical indicators of holstein, brown swiss, simmental, and jersey breeds of cows under Armenian agro-climatic conditions. https://doi.org/10.15159/AR.25.078en
dc.identifier.issn2228-4907
dc.identifier.publicationAgronomy Research, 2025, vol. 23, no. 3, pp. 1603–1619eng
dc.identifier.urihttp://hdl.handle.net/10492/10117
dc.identifier.urihttps://doi.org/10.15159/ar.25.078
dc.publisherEstonian University of Life Scienceseng
dc.rightsCreative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)eng
dc.rightsinfo:eu-repo/semantics/openAccesseng
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectadaptation traitseng
dc.subjectmilk productivityeng
dc.subjectage at first calvingeng
dc.subjectreproductive traitseng
dc.subjectbreed comparisoneng
dc.subjectphysiological indicatorseng
dc.subjectarticleseng
dc.titleMilk productivity, reproductive performance, hematological and clinical indicators of holstein, brown swiss, simmental, and jersey breeds of cows under Armenian agro-climatic conditionseng
dc.typeArticleeng

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2025, Vol. 23, No. 3