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Biblioteca(s): |
Embrapa Gado de Corte. |
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Data corrente: |
01/10/2025 |
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Data da última atualização: |
01/10/2025 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CARA, J. R. F.; ARAÚJO, T. L. A. C. de; NEVES, A. P.; LATTA, K. I.; PEREIRA, M. W. F.; MENEZES, G. R. de O.; FEIJO, G. L. D.; GOMES, M. de N. B.; GOMES, R. da C. |
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Afiliação: |
JAQUELINE RODRIGUES FERREIRA CARA, UNIVERSIDADE FEDERAL DE MATO GROSSO DO SUL; THIAGO LUIS ALVES CAMPOS DE ARAÚJO, UNIVERSIDADE FEDERAL RURAL DO SEMIÁRIDO; ANDREI PEREIRA NÉVES, UNIVERSIDADE ESTADUAL DE LONDRINA; KARLA IZIDIO LATTA, UNIVERSIDADE FEDERAL DE MATO GROSSO DO SUL; MARÍLIA WILLIANI FILGUEIRA PEREIRA, UNIVERSIDADE FEDERAL RURAL DO SEMIÁRIDO; GILBERTO ROMEIRO DE OLIVEIRA MENEZES, CNPGC; GELSON LUIS DIAS FEIJO, CNPGC; MARINA DE NADAI BONIN GOMES, UNIVERSIDADE FEDERAL DE MATO GROSSO DO SUL; RODRIGO DA COSTA GOMES, CNPGC. |
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Título: |
Castration procedures and feed management in the finishing phase affect the performance, carcass traits, and meat quality of grazing steers. |
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Ano de publicação: |
2025 |
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Fonte/Imprenta: |
Tropical Animal Health and Production, v. 57, article number 71, 2025. |
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DOI: |
https://doi.org/10.1007/s11250-025-04319-5 |
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Idioma: |
Inglês |
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Conteúdo: |
ABSTRACT - The objective of this study was to evaluate the effects of different castration methods, body weights at castration, and feeding management practices on the performance, carcass traits, and meat quality of grazing Nellore steers. 60 male cattle were randomly distributed among the following treatments: surgical castration (SC) at 350 kg body weight (BW) and finished in semiconfinement; immunocastration (ImC) at 350, 400, and 450 kg BW and finished in semiconfinement; and ImC at 450 kg BW and finished receiving protein-energy (P-E) supplementation. All steer production phases were carried out in a grazing system with tropical grass, and only the level of supplementation was varied. The animals were subsequently slaughtered, their carcasses were qualitatively and quantitatively evaluated. The measures of animal performance, carcass traits, composition, and physicochemical quality of aged and unaged meat were considered dependent variables. Immunocastration promoted greater (P<0.05) average daily weight gains (ADG) postweaning, final BWs postweaning, final BWs at finishing, hot carcass weights, carcass lengths, and internal carcass depths. There was no effect (P>0.05) of ImC weights on the animal performance variables; however, the ImC weight factor influenced (P<0.05) carcass conformation and the L* component of aged and unaged meat. Semiconfinement promoted greater (P<0.05) ADGs, final BWs, hot carcass weights, carcass yields, carcass fattening, rib eye areas, subcutaneous fat thicknesses, and L* components of aged and unaged meat. Immunocastration at 450 kg BW and semiconfinement at the finishing phase is recommended for grazing beef cattle production systems that involve the castration of males. MenosABSTRACT - The objective of this study was to evaluate the effects of different castration methods, body weights at castration, and feeding management practices on the performance, carcass traits, and meat quality of grazing Nellore steers. 60 male cattle were randomly distributed among the following treatments: surgical castration (SC) at 350 kg body weight (BW) and finished in semiconfinement; immunocastration (ImC) at 350, 400, and 450 kg BW and finished in semiconfinement; and ImC at 450 kg BW and finished receiving protein-energy (P-E) supplementation. All steer production phases were carried out in a grazing system with tropical grass, and only the level of supplementation was varied. The animals were subsequently slaughtered, their carcasses were qualitatively and quantitatively evaluated. The measures of animal performance, carcass traits, composition, and physicochemical quality of aged and unaged meat were considered dependent variables. Immunocastration promoted greater (P<0.05) average daily weight gains (ADG) postweaning, final BWs postweaning, final BWs at finishing, hot carcass weights, carcass lengths, and internal carcass depths. There was no effect (P>0.05) of ImC weights on the animal performance variables; however, the ImC weight factor influenced (P<0.05) carcass conformation and the L* component of aged and unaged meat. Semiconfinement promoted greater (P<0.05) ADGs, final BWs, hot carcass weights, carcass yields, carcass fattening, rib eye areas, subcu... Mostrar Tudo |
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Thesagro: |
Carcaça; Castração; Gado de Corte; Gado Nelore. |
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Thesaurus Nal: |
Beef carcasses; Beef cattle; Castration; Meat quality; Nellore; Pastures; Steers. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02831naa a2200361 a 4500
001 2179298
005 2025-10-01
008 2025 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1007/s11250-025-04319-5$2DOI
100 1 $aCARA, J. R. F.
245 $aCastration procedures and feed management in the finishing phase affect the performance, carcass traits, and meat quality of grazing steers.$h[electronic resource]
260 $c2025
520 $aABSTRACT - The objective of this study was to evaluate the effects of different castration methods, body weights at castration, and feeding management practices on the performance, carcass traits, and meat quality of grazing Nellore steers. 60 male cattle were randomly distributed among the following treatments: surgical castration (SC) at 350 kg body weight (BW) and finished in semiconfinement; immunocastration (ImC) at 350, 400, and 450 kg BW and finished in semiconfinement; and ImC at 450 kg BW and finished receiving protein-energy (P-E) supplementation. All steer production phases were carried out in a grazing system with tropical grass, and only the level of supplementation was varied. The animals were subsequently slaughtered, their carcasses were qualitatively and quantitatively evaluated. The measures of animal performance, carcass traits, composition, and physicochemical quality of aged and unaged meat were considered dependent variables. Immunocastration promoted greater (P<0.05) average daily weight gains (ADG) postweaning, final BWs postweaning, final BWs at finishing, hot carcass weights, carcass lengths, and internal carcass depths. There was no effect (P>0.05) of ImC weights on the animal performance variables; however, the ImC weight factor influenced (P<0.05) carcass conformation and the L* component of aged and unaged meat. Semiconfinement promoted greater (P<0.05) ADGs, final BWs, hot carcass weights, carcass yields, carcass fattening, rib eye areas, subcutaneous fat thicknesses, and L* components of aged and unaged meat. Immunocastration at 450 kg BW and semiconfinement at the finishing phase is recommended for grazing beef cattle production systems that involve the castration of males.
650 $aBeef carcasses
650 $aBeef cattle
650 $aCastration
650 $aMeat quality
650 $aNellore
650 $aPastures
650 $aSteers
650 $aCarcaça
650 $aCastração
650 $aGado de Corte
650 $aGado Nelore
700 1 $aARAÚJO, T. L. A. C. de
700 1 $aNEVES, A. P.
700 1 $aLATTA, K. I.
700 1 $aPEREIRA, M. W. F.
700 1 $aMENEZES, G. R. de O.
700 1 $aFEIJO, G. L. D.
700 1 $aGOMES, M. de N. B.
700 1 $aGOMES, R. da C.
773 $tTropical Animal Health and Production$gv. 57, article number 71, 2025.
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| 1. |  | OLIVEIRA, I. R. dos S.; RODRIGUES, F. L.; FARIA, L. C.; MESQUITA, A. Q. de; RODRIGUES, M. T. de O.; MARTINS, G. A. M. M.; MELLO, V. C.; FONSECA, M. J. P.; MARTINS, C. F.; BÁO, S. N. Action of melatonin in bovine embryo culture under high oxygen tension in blastocyst production. Animal Reproduction, v. 22, n. 3, 2025. Edição dos Proceedings 38th Annual Meeting of the Brazilian Embryo Technology Society (SBTE), 2025.| Tipo: Resumo em Anais de Congresso |
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