Efeito da Seleção para Peso Pós-desmama sobre Indicadores da Eficiência Produtiva de Vacas da Raça Nelore

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dc.contributor.authorDe Vasconcelos Silva, Josineudson Augusto I.I. [UNESP]
dc.contributor.authorRazook, Alexander George
dc.contributor.authorTonhati, Humberto [UNESP]
dc.contributor.authorDe Figueiredo, Leopoldo Andrade
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionInstituto de Zootecnia
dc.contributor.institutionBolsista CNPq
dc.date.accessioned2022-04-28T19:56:39Z
dc.date.available2022-04-28T19:56:39Z
dc.date.issued2000-07-01
dc.description.abstractThe objective of this study was to evaluate the productivity efficiency indicators of cows selected for post-weaning weight, with emphasis in the calf-cow weight ratios, in a controlled herd (NeC), unselected for post-weaning weight, selection (NeS) and conventional (NeT). The analysis involved 3929 and 3906 calves weights at the 120 (P120) and 210 (P210) days of age, respectively. The cow weights at those ages were also considered, and the recorded numbers were 3824 (PV120) and 3777 (PV210), respectively, for 120 and 210 days. The analysis included 183, 375 and 554 cows from NeC, NeS and NeT, respectively. The SAS/ GLM procedure was used in the data analyses. The model included the effects of herd, year and month of birth, and sex of calf, age of cow at calving, and the interactions herd x year, and year x month of birth. All effects were significant. The results showed a positive correlated response in the selection for post weaning on the calf weights and, low response, on cow weights. The calf weight/cow weight ratios showed average adjusted values of 249.0±2.1, 253.7±1.6 and 255.8±1.2 g/kg for R120, and 362.9±2.8, 368.5±2.1 and 374.6±1.7 g/kg for NeC, NeS and NeT at R210 respectively, and indicated that, at both ages, the NeS and NeT herds produced more kg of calf by kg of cow when compared to NeC.en
dc.description.affiliationDept. Melh. e Nutr. Anim FMVZ/UNESP, Botucatu, SP
dc.description.affiliationEstacao Exp. Zootecnia Sertaozinho Instituto de Zootecnia, Sertãozinho, SP
dc.description.affiliationDepartamento de Zootecnia FCAVJ/UNESP, Jaboticabal, SP
dc.description.affiliationBolsista CNPq
dc.description.affiliationUnespDept. Melh. e Nutr. Anim FMVZ/UNESP, Botucatu, SP
dc.description.affiliationUnespDepartamento de Zootecnia FCAVJ/UNESP, Jaboticabal, SP
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.format.extent1020-1027
dc.identifier.citationRevista Brasileira de Zootecnia, v. 29, n. 4, p. 1020-1027, 2000.
dc.identifier.issn0100-4859
dc.identifier.scopus2-s2.0-0348246833
dc.identifier.urihttp://hdl.handle.net/11449/224467
dc.language.isopor
dc.relation.ispartofRevista Brasileira de Zootecnia
dc.sourceScopus
dc.subjectCoes
dc.subjectMaternal hability
dc.subjectNellore
dc.subjectPost-weaning weight
dc.subjectSelection
dc.titleEfeito da Seleção para Peso Pós-desmama sobre Indicadores da Eficiência Produtiva de Vacas da Raça Nelorept
dc.title.alternativeEffects of Selection for Post Weaning Weight on Nellore Cow Productivity Efficiency Indicatorsen
dc.typeArtigo

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Artigos - Melhoramento e Nutrição Animal - FMVZ
Artigos - Zootecnia - FCAV