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dc.contributor.authorMAGNABOSCO, C. de U.
dc.contributor.authorLOPES, F. B.
dc.contributor.authorMAMEDE, M.
dc.contributor.authorGONZALEZ, R. D. S.
dc.date.accessioned2026-01-28T17:49:01Z-
dc.date.available2026-01-28T17:49:01Z-
dc.date.created2014-02-03
dc.date.issued2013
dc.identifier.citationRevista Colombiana de Ciencias Pecuarias, v. 26, p. 284-291, 2013.
dc.identifier.issn0120-0690
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/978332-
dc.descriptionYoung bull performance tests are of great utility in breeding programs, as they aim to evaluate the ability of individual animals regarding weight gain, precocity, and carcass quality (yield and fatness), providing support for selection based on individual information from each animal. This study analyzed the following traits: body weight calculated at 210, 365 and 450 days of age, pre-weaning and post-weaning average daily gains, scrotal circumference at 365 and 450 days of age, Longissimus muscle area and carcass fatness. In addition, economical simulations were conducted using weight at 18 months and expected progeny difference (EPD) for weight at 450 days of age. A positive relationship has been observed between genetic values of bulls and those of their progeny, thus the selection of the best bulls is effective in terms of genetic progress and when used in different herds will produce rapid economic returns to breeders. Knowledge of relationships between the genetic merit of bulls and their progeny for growth, carcass and fertility traits in Nellore cattle unequivocally demonstrate the importance of using young bulls with superior genetic merit for the production of superior progeny, accelerating breeding improvement. Likewise, animals of superior genetic merit have shown increased market value. This is because the market is aware of the changes in the agricultural sector, i.e. higher economic returns have been obtained using genetically superior animals. Since superior bulls produce superior progeny, the continuous and rational use of animals from the Young Bull Performance Test and of BRGN Nellore origin, tends to add ever greater economic values ​​through increases in performance traits.
dc.language.isopor
dc.rightsopenAccess
dc.titleUtilização de touros geneticamente avaliados como ferramenta para melhorar a produtividade de sistemas de bovinos de corte.
dc.typeArtigo de periódico
dc.subject.thesagroGanho de Peso
dc.subject.thesagroTouro
dc.subject.thesagroGado Zebu
dc.subject.thesagroGado Nelore
dc.subject.thesagroMelhoramento Genético Animal
dc.description.notesTítulo em espanhol: El uso de toros mejorados como herramienta para incrementar la productividad en sistemas ganaderos.
riaa.ainfo.id978332
riaa.ainfo.lastupdate2026-01-28
dc.contributor.institutionCLAUDIO DE ULHOA MAGNABOSCO, CPAC; FERNANDO BRITO LOPES, UNIVERSIDADE FEDERAL DE GOIÁS; MARIANA MAMEDE, UNIVERSIDADE FEDERAL DE GOIÁS; ROBERTO DANIEL SAINZ GONZALEZ, CPAC.
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