Genetic parameters for milk yield, lactation length and calving intervals of Murrah buffaloes from Brazil

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dc.authoridSouza, Julio Cesar de/0000-0001-7296-988X
dc.authoridMendes MALHADO, Ana Claudia/0000-0003-3621-779X
dc.contributor.authorMendes Malhado, Carlos Henrique
dc.contributor.authorMendes Malhado, Ana Claudia
dc.contributor.authorRamos, Alcides de Amorim
dc.contributor.authorSouza Carneiro, Paulo Luiz
dc.contributor.authorde Souza, Julio Cesar
dc.contributor.authorPala, Akin
dc.date.accessioned2025-01-27T21:03:36Z
dc.date.available2025-01-27T21:03:36Z
dc.date.issued2013
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractThe major objective of this study was to estimate heritability and genetic correlations between milk yield (MY) and calving interval (CI) and lactation length (LL) in Murrah buffaloes using Bayesian inference. The database used belongs to the genetic improvement program of four buffalo herds from Brazil. To obtain the estimates of variance and covariance, bivariate analyses were performed with the Gibbs sampler, using the program MTGSAM. The heritability coefficient estimates were 0.28, 0.03 and 0.15 for MY, CI and LL, respectively. The genetic correlations between MY and LL was moderate (0.48). However, the genetic correlation between MY and CI showed large HPD regions (highest posterior density interval). Milk yield was the only trait with clear potential for genetic improvement by direct mass selection. The genetic correlation between MY and LL indicates that indirect selection using milk yield is a potentially beneficial strategy. The interpretation of the estimated genetic correlation between MY and CI is difficult and could be spurious.
dc.identifier.doi10.1590/S1516-35982013000800005
dc.identifier.endpage569
dc.identifier.issn1806-9290
dc.identifier.issue8
dc.identifier.scopus2-s2.0-84881487024
dc.identifier.scopusqualityQ3
dc.identifier.startpage565
dc.identifier.urihttps://doi.org/10.1590/S1516-35982013000800005
dc.identifier.urihttps://hdl.handle.net/20.500.12428/27361
dc.identifier.volume42
dc.identifier.wosWOS:000322317600005
dc.identifier.wosqualityQ4
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherRevista Brasileira Zootecnia Brazilian Journal Animal Sci
dc.relation.ispartofRevista Brasileira De Zootecnia-Brazilian Journal of Animal Science
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WoS_20250125
dc.subjectgenetic correlation
dc.subjectGibbs sampler
dc.subjectheritability
dc.titleGenetic parameters for milk yield, lactation length and calving intervals of Murrah buffaloes from Brazil
dc.typeArticle

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