ESTIMATION OF GENETIC PARAMETERS AND GENETIC TREND OF HOLSTEIN FRIESIAN CATTLE POPULATION IN TURKEY

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dc.authorid0000-0002-9992-8102
dc.authorwosidSoysal, Mehmet İhsan/ABA-4699-2020
dc.contributor.authorGenç, Serdar
dc.contributor.authorSoysal, Mehmet İhsan
dc.date.accessioned2022-05-11T14:07:16Z
dc.date.available2022-05-11T14:07:16Z
dc.date.issued2019
dc.departmentFakülteler, Ziraat Fakültesi, Zootekni Bölümü
dc.description.abstractIn this study, 194408 lactation and reproductive records of Holstein Friesian dairy cattle for the period of 1992-2012, which were taken from 23752 farms of Cattle Breeders Association of Turkey located in 10 cities, were evaluated. Variance components, breeding values, heritability, and repeatability of 305-day milk yield (305 DMY), lactation length (LL), dry period (DP), and calving interval (CI) were calculated by using MTDFREML. The effects of the factors (year of birth, lactation number, calving month, location, and calving age) that were thought to affect those traits (305 DMY, LL, DP, and CI) were evaluated. The heritability of 305 DMY, LL, DP, and CI was estimated as 0.22; 0.01; 0.01; and <0.01 respectively. Genetic trend for 305 DMY was also estimated as 7.44 kg/year. The estimated breeding values showed irregular fluctuations, but also the genetic trend increased in recent years. As a result, the estimated variance components, genetic parameters and breeding values could be used as selection criteria to increase the success of the selection in breeding studies for Holstein cattle population in Turkey.
dc.identifier.endpage2624
dc.identifier.issn1018-4619
dc.identifier.issn1610-2304
dc.identifier.issue4en_US
dc.identifier.scopus2-s2.0-79959347133
dc.identifier.scopusqualityN/A
dc.identifier.startpage2617
dc.identifier.urihttps://hdl.handle.net/20.500.11776/5043
dc.identifier.volume28
dc.identifier.wosWOS:000465645700032
dc.identifier.wosqualityQ4
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthorSoysal, Mehmet İhsan
dc.language.isoen
dc.publisherParlar Scientific Publications (P S P)
dc.relation.ispartofFresenius Environmental Bulletin
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectHolstein Friesian
dc.subjectheritability
dc.subjectvariance components
dc.subjectbreeding values
dc.subjectgenetic trend
dc.subjectMilk-Production Traits
dc.subjectFemale Fertility
dc.subjectPhenotypic Relationships
dc.subjectCoagulation Properties
dc.subjectVariance-Components
dc.subjectBreeding Values
dc.subjectFat Yields
dc.subjectCows
dc.subjectHeritability
dc.subjectRepeatability
dc.titleESTIMATION OF GENETIC PARAMETERS AND GENETIC TREND OF HOLSTEIN FRIESIAN CATTLE POPULATION IN TURKEY
dc.typeArticle

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