Economic analysis, performance, and feed efficiency in feedlot lambs

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dc.creatorLima, Natália Ludmila Lins
dc.creatorRibeiro, Carolina Resende de Freitas
dc.creatorSá, Hemilly Cristina Menezes de
dc.creatorLeopoldino-Júnior, Izac
dc.creatorCavalcanti, Luigi Francis Lima
dc.creatorSantana, Ronan Aparecido Valadares
dc.creatorFurusho-Garcia, Iraides Ferreira
dc.creatorPereira, Idalmo Garcia
dc.date.accessioned2018-10-11T18:39:31Z
dc.date.available2018-10-11T18:39:31Z
dc.date.issued2017
dc.description.resumoThe objective of this study was to evaluate residual feed intake (RFI), residual intake and body weight gain (RIG) and their relationship with other traits of efficiency, performance, and economic analysis of sheep. Lambs (n = 102) were evaluated during 56 days and a herd consisting of 500 ewes was simulated with the mean of dry matter intake (DMI) and final body weight of the lambs, the same as that of the experimental lambs. The lambs were fed hay-based diet of Tifton 85 (Cynodon spp.), corn, and soybean in the voluminous:concentrate ratio of 35:65. Residual feed intake and RIG were correlated with DMI, feed conversion ratio, and feed efficiency. Residual intake and body weight gain were positively correlated with average daily gain, relative growth rate, and Kleiber's rate. The most efficient production systems (lower RFI and higher RIG) had lower costs and higher profit margins. The net present value (NPV) and internal rate of return (IRR) were higher in systems with more efficient lambs. In systems with less efficient lambs, NPV and IRR were negative and lower, respectively. Efficient animals for RFI and RIG showed satisfactory performance and better economic results.pt_BR
dc.identifier.citationLIMA, N. L. L. et al. Economic analysis, performance, and feed efficiency in feedlot lambs. Revista Brasileira de Zootecnia, Viçosa, MG, v. 46, n. 10, p. 821-829, 2017.pt_BR
dc.identifier.urihttps://repositorio.ufla.br//handle/1/31360
dc.languageen_USpt_BR
dc.publisherSociedade Brasileira de Zootecniapt_BR
dc.rightsacesso abertopt_BR
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.sourceRevista Brasileira de Zootecniapt_BR
dc.subjectResidual feed intakept_BR
dc.subjectLambs - Weight gainpt_BR
dc.subjectFeedlot lambspt_BR
dc.subjectIngestão residual de raçãopt_BR
dc.subjectCordeiros - Ganho de pesopt_BR
dc.subjectCordeiros - Confinamentopt_BR
dc.titleEconomic analysis, performance, and feed efficiency in feedlot lambspt_BR
dc.typeArtigopt_BR

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