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dc.contributor.authorRODRIGUES, P. R.pt_BR
dc.contributor.authorMENEZES, L. de M.pt_BR
dc.contributor.authorSILVEIRA, I. D. B.pt_BR
dc.contributor.authorSUÑÉ, R. W.pt_BR
dc.contributor.authorCARDOSO, F. F.pt_BR
dc.date.accessioned2011-11-30T11:11:11Zpt_BR
dc.date.accessioned2011-11-30T11:11:11Zpt_BR
dc.date.available2011-11-30T11:11:11Zpt_BR
dc.date.available2011-11-30T11:11:11Zpt_BR
dc.date.created2011-11-30pt_BR
dc.date.issued2011pt_BR
dc.identifier.citationIn: REUNIÓN DE LA ASOCIACIÓN LATINOAMERICANA DE PRODUCCIÓN ANIMAL, 22., 2011, Montevideo, Uruguay. Memorias... Montevideo: Asociación Uruguaya de Producción Animal, 2011.pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/907988pt_BR
dc.descriptionAmong the environmental factors that contribute to calf growth during the pre-weaning period, the most important is the milk provide by its dam. In this sense, not only the amount but also its constituents are important because they must meet the calves nutritional requirements at this developmental stage. The aim of this study was to evaluate the milk chemical composition from different genotype beef cows machine milked in three lactation periods (early, middle and end). The study included 66 cows of the following genotypes: Angus cows (ANAN), Angus x Caracu (ANCR), Angus x Hereford (ANHH) and Angus x Nellore (ANNE). Milk fat percentage was higher for ANCR and ANNE (3.78% and 3.79%, respectively), not differing between them. For protein, ANCR (3.16%) was superior to other genotypes, except ANNE (3.12%). The ANNE genotype had a lactose percentage of 4.77%, being higher than the other evaluated genotypes. Values for total solids of ANCR and ANNE (12.44% and 12.69%, respectively) were also higher than the other genotypes, again not differing between them. There was variation in the milk composition among the measured periods. Lactose percentage assessed during late lactation was lower than in the two earlier periods. For the milk fat percentage, there was an increase in late lactation compared to assessments in the earlier periods. The total solids and protein percentage increased concentrations from early to middle and from middle to late lactation periods. We conclude that the milk chemistry composition of beef cows is influenced by genotype the lactation period.pt_BR
dc.format1 CD-ROM.pt_BR
dc.language.isoengeng
dc.rightsopenAccesseng
dc.subjectSistema de Criação extensivopt_BR
dc.subjectLINApt_BR
dc.subjectLeite Instável Não Ácidopt_BR
dc.titleMilk chemical composition of beef cows from different genotypes raised in extensive system.pt_BR
dc.typeResumo em anais e proceedingspt_BR
dc.date.updated2012-02-15T11:11:11Zpt_BR
dc.subject.thesagroComposição Químicapt_BR
dc.subject.thesagroGado de Cortept_BR
dc.subject.thesagroLeitept_BR
riaa.ainfo.id907988pt_BR
riaa.ainfo.lastupdate2012-02-15pt_BR
dc.contributor.institutionRENATA WOLF SUÑÉ MARTINS DA SILVA, CPPSUL; FERNANDO FLORES CARDOSO, CPPSUL.pt_BR
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