Produção de leite, duração da lactação e intervalo de partos em búfalas mestiças Murrah

Milk production, lactation length and calving interval in crossbreds of Murrah buffalo cows

dc.contributorPIBIC CNPq
dc.contributorUniv Fed Alagoas
dc.contributorFazenda Castanha Grande
dc.contributorUniversidade Estadual Paulista (Unesp)
dc.creatorBezerra Junior, Jailton da Silva
dc.creatorFraga, Angelina Bossi
dc.creatorCouto, Alberto de Gusmao
dc.creatorBarros, Camila da Costa [UNESP]
dc.creatorOliveira Silva, Rafael Medeiros de [UNESP]
dc.date2015-03-18T15:56:46Z
dc.date2015-03-18T15:56:46Z
dc.date2014-01-01
dc.date.accessioned2023-09-12T03:16:19Z
dc.date.available2023-09-12T03:16:19Z
dc.identifierhttp://periodicos.ufersa.edu.br/revistas/index.php/sistema/article/view/3280
dc.identifierRevista Caatinga. Mossoro: Univ Fed Rural Semi-arido-ufersa, v. 27, n. 2, p. 184-191, 2014.
dc.identifier0100-316X
dc.identifierhttp://hdl.handle.net/11449/117684
dc.identifierWOS:000340739800020
dc.identifierWOS000340739800020.pdf
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8767167
dc.descriptionThis study aimed to evaluate the potential for milk production (MP), lactation length (LL) and calving interval (CI), analyze the environmental component affecting these traits, and to estimate the heritability and repeatability for milk production in crossbreds of Murrah buffalo cows in the state of Alagoas, Brazil. Data was composed of 487 observations of MP from 136 lactations recorded between the years of 2000 and 2010. In the analysis of variance for PL, the fixed effects were season (1- October to March, 2 -April to September) and year of the beginning of lactation, calving order and the LL (covariate). For the analysis of LL only the fixed effect of year of the beginning of lactation was included, and finally for the CI analysis, year of the beginning of lactation and calving order. The estimates of covariance were obtained using unicharacteristic analysis by Bayesian inference method, applyingan animal model, through Gibbs sampling. The additive genetic, permanent environment and residual effects were included as random effects in the model. The averages (sd) of MP, LL and CI were 2,218.03 kg (408.18), 282.59 days (39.48) e 422.49 days (91.05), respectively. All the effects included in the models were important (P<0.01). The estimates of heritability and repeatability for PL were 0.29 and 0.69, respectively. The results suggest that there is a moderate genetic variability among individuals for PL, indicating the possibility to obtain gain using selection.
dc.descriptionPIBIC CNPq, Brasilia, DF, Brazil
dc.descriptionUniv Fed Alagoas, Ctr Ciencias Agr, BR-57100000 Rio Largo, AL, Brazil
dc.descriptionFazenda Castanha Grande, Sao Luiz Do Quitunde, AL, Brazil
dc.descriptionUnesp Jaboticabal, FCAV, Programa Posgrad Genet & Melhoramento Anim, Jaboticabal, Brazil
dc.descriptionUnesp Jaboticabal, FCAV, Programa Posgrad Genet & Melhoramento Anim, Jaboticabal, Brazil
dc.format184-191
dc.languagepor
dc.publisherUniv Fed Rural Semi-arido-ufersa
dc.relationRevista Caatinga
dc.relation0.421
dc.rightsAcesso aberto
dc.sourceWeb of Science
dc.subjectBuffaloes
dc.subjectHeritability
dc.subjectRepeatability
dc.subjectReproductive performance
dc.titleProdução de leite, duração da lactação e intervalo de partos em búfalas mestiças Murrah
dc.titleMilk production, lactation length and calving interval in crossbreds of Murrah buffalo cows
dc.typeArtigo


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