Estimates of genetic parameters for different body weights and muscle and fat depths of Karayaka lambs

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dc.contributor.authorAksoy, Yuksel
dc.contributor.authorUlutas, Zafer
dc.contributor.authorSen, Ugur
dc.contributor.authorSirin, Emre
dc.contributor.authorSahin, Aziz
dc.date.accessioned2019-08-01T13:38:39Z
dc.date.available2019-08-01T13:38:39Z
dc.date.issued2016
dc.departmentNiğde ÖHÜ
dc.description.abstractIn the current paper the direct additive and maternal genetic effects on birth, weaning (at 90 days of age), and scanning (at 20 weeks of age) weights and muscle and fat depths of the ribeye area in Karayaka lambs were investigated. Analyses were carried out by the restricted maximum likelihood approach, fitting 6 animal models with various combinations of direct and maternal effects. The best model was chosen after testing for improvement in the log-likelihood values. Direct heritability (h(d)(2)) for all traits decreased when maternal genetic effects were included in the models. The maternal heritability (h(m)(2)) ranged from 0.15 to 0.22 for birth weight, from 0.04 to 0.14 for weaning weight, and from 0.08 to 0.16 for scanning weight. The effects of h(m)(2) on muscle depth and fat depth of the ribeye area were not considered due to their insignificance. The permanent environmental effect of the dam was significant for birth, weaning, and scanning weights. Moderate negative genetic correlations (r(am)) between the direct and maternal genetic effects were observed, which were significant for birth (-0.179 and -0.221), weaning (-0.310 and -0.415), and scanning (-0.116 and -0.141) weights. As a result, h(d)(2) and h(m)(2) can be used as selection criteria for birth, weaning, and scanning weights in Karayaka lambs.
dc.identifier.doi10.3906/vet-1504-16
dc.identifier.endpage20
dc.identifier.issn1300-0128
dc.identifier.issue1
dc.identifier.scopus2-s2.0-84953404090
dc.identifier.scopusqualityQ3
dc.identifier.startpage13
dc.identifier.urihttps://dx.doi.org/10.3906/vet-1504-16
dc.identifier.urihttps://hdl.handle.net/11480/3813
dc.identifier.volume40
dc.identifier.wosWOS:000368558800006
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthor[0-Belirlenecek]
dc.language.isoen
dc.publisherSCIENTIFIC TECHNICAL RESEARCH COUNCIL TURKEY-TUBITAK
dc.relation.ispartofTURKISH JOURNAL OF VETERINARY & ANIMAL SCIENCES
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectLamb
dc.subjectKarayaka
dc.subjectdirect heritability
dc.subjectmaternal heritability
dc.subjectbody weights
dc.titleEstimates of genetic parameters for different body weights and muscle and fat depths of Karayaka lambs
dc.typeArticle

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