Data/hora: 17/06/2024 01:18:50

Biblioteca(s): | Embrapa Unidades Centrais.
Data corrente: | 22/10/2018
Data da última atualização: | 25/02/2019
Autoria: | MACHADO, D. S.; JONER, G.; PEREIRA, L. B.; POTTER, L.; BRONDANI, I. L.; ALVES FILHO, D. C.
Afiliação: | Diego Soares Machado, Departamento de Zootecnia/Universidade Federal de Santa Maria - UFSM; Guilherme Joner, Universidade Federal do Pampa/Campus Dom Pedrito; Lucas Braido Pereira, Departamento de Zootecnia/Universidade Federal de Santa Maria - UFSM; Luciana Pötter, Departamento de Zootecnia/Universidade Federal de Santa Maria - UFSM; Ivan Luiz Brondani, Departamento de Zootecnia/Universidade Federal de Santa Maria - UFSM; Dari Celestino Alves Filho, Departamento de Zootecnia/Universidade Federal de Santa Maria - UFSM.
Título: | Meta-analysis of the immunocastration technique (anti-GnRH) for male bovines in the finishing phase.
Ano de publicação: | 2018
Fonte/Imprenta: | Pesquisa Agropecuária Brasileira, Brasília, DF, v. 53, n. 8, p. 960-969, Aug. 2018.
Idioma: | Inglês
Notas: | Título em português: Meta-análise da técnica de imunocastração (anti-GnRH) para bovinos machos em fase de terminação.
Conteúdo: | The objective of this work was to analyze the effects of immunocastration on the performance and carcass quality of steers in the finishing phase, compared with non-castration and surgical castration. Data from ten studies with records of 1,261 male bovines were analyzed. The studies included in the meta-analysis necessarily contained treatments with immunocastration specifically against the gonadotropin-releasing hormone. Each study was considered as a random effect in the statistical model used. The data were tested for homogeneity of variances and residue normality, and then subjected to the analysis of variance. Means were compared by Student?s t-test. Non-castrated steers showed greater daily weight gain, feed efficiency, slaughter and hot carcass weights, and loin eye area, besides lower fat thickness than surgically-castrated animals and the lowest a* and b* meat coloration values. Overall, immunocastrated steers were inferior to the non-castrated ones, but superior to those surgically-castrated. Immunocastrated steers present performance and carcass traits superior to those of surgically-castrated animals, but similar meat quality.
Palavras-Chave: | Castration methods; Daily weight gain; Fat cover; Forest plot; Ganho de peso diário; Gordura de cobertura; Métodos de castração; Qualidade de carne.
Thesaurus Nal: | Meat quality.
Categoria do assunto: | --
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/184855/1/Meta-analysis-of-the-immunocastration-technique.pdf
Registro original: | Embrapa Unidades Centrais (AI-SEDE)
Exemplares: | AI-SEDE - (63243-1) - UPE - AP - DD -  -  -  - DIS