Repeatability and heritability of response to superovulation in Holstein cows

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorTonhati, Humberto
dc.creatorLôbo, R. B.
dc.creatorOliveira, H. N.
dc.date2014-05-27T11:19:43Z
dc.date2016-10-25T18:15:41Z
dc.date2014-05-27T11:19:43Z
dc.date2016-10-25T18:15:41Z
dc.date1999-04-15
dc.date.accessioned2017-04-06T00:54:07Z
dc.date.available2017-04-06T00:54:07Z
dc.identifierTheriogenology, v. 51, n. 6, p. 1151-1156, 1999.
dc.identifier0093-691X
dc.identifierhttp://hdl.handle.net/11449/65760
dc.identifierhttp://acervodigital.unesp.br/handle/11449/65760
dc.identifier10.1016/S0093-691X(99)80018-1
dc.identifierWOS:000080581400010
dc.identifier2-s2.0-0345729882
dc.identifierhttp://dx.doi.org/10.1016/S0093-691X(99)80018-1
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/887442
dc.descriptionThe objective of this study was to estimate the relative effects of genetic and phenotypic factors on the efficacy and efficiency of superovulation for Holstein-Friesian cows reared in Brazil. A database, established by the Associacao Brasileira de Criadores de Bovinos da Raca Holandesa, consisting of a total of 5387 superovulations of 2941 cows distributed over 473 herds and sired by 690 bulls was used for the analysis. The records were analyzed by MTDFREML (Multiple Trait Derivative-Free Restricted Maximum Likelihood), using a repeatability animal model. The fixed effects included in the model were contemporaneous group (veterinarian, herd, year and season of the superovulation); number of semen doses; cow age; and superovulation order. The estimated repeatability of the number of the transferable embryos was low (0.13), and the estimated heritability was 0.03. These results indicate that environmental factors play a critical role in the response of a cow to a superovulation treatment. There is little evidence that future responses to superovulation by individual females can be predicted by previous treatment(s) or that superovulation response is an heritable trait.
dc.languageeng
dc.relationTheriogenology
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectGenetic aspects
dc.subjectHolstein-Friesian
dc.subjectYield embryos
dc.subjectaging
dc.subjectanimal
dc.subjectanimal disease
dc.subjectartificial insemination
dc.subjectcattle
dc.subjectcow
dc.subjectdata analysis
dc.subjectdata base
dc.subjectembryo transfer
dc.subjectenvironment
dc.subjectenvironmental factor
dc.subjectfemale
dc.subjectgenetics
dc.subjectheritability
dc.subjectnonhuman
dc.subjectphysiology
dc.subjectreproducibility
dc.subjectseason
dc.subjectsuperovulation
dc.subjectAging
dc.subjectAnimals
dc.subjectCattle
dc.subjectEmbryo Transfer
dc.subjectEnvironment
dc.subjectFemale
dc.subjectInsemination, Artificial
dc.subjectReproducibility of Results
dc.subjectSeasons
dc.subjectSuperovulation
dc.subjectAnimalia
dc.subjectBos taurus
dc.subjectFriesia
dc.titleRepeatability and heritability of response to superovulation in Holstein cows
dc.typeOtro


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