Data/hora: 23/06/2024 20:27:06

Biblioteca(s): | Embrapa Gado de Corte; Embrapa Pecuária Sudeste.
Tipo da produção científica: | Artigo em Periódico Indexado
Circulação/Nível: | A - 2
Data corrente: | 22/02/2017
Data da última atualização: | 20/02/2018
Autoria: | NASCIMENTO, M. L.; SOUZA, A. R. D. L.; CHAVES, A. S.; CESAR, A. S. M.; TULLIO, R. R.; MEDEIROS, S. R. de; MOURÃO, G. B.; ROSA, A. do N.; FEIJO, G. L. D.; ALENCAR, M. M. de; LANNA, D. P. D.
Afiliação: | ESALQ; ESALQ; ESALQ; ESALQ; RYMER RAMIZ TULLIO, CPPSE; SERGIO RAPOSO DE MEDEIROS, CNPGC; ESALQ; ANTONIO DO NASCIMENTO FERREIRA ROSA, CNPGC; GELSON LUIS DIAS FEIJO, CNPGC; MAURICIO MELLO DE ALENCAR, CPPSE; ESALQ.
Título: | Feed efficiency indexes and their relationships with carcass, non-carcass and meat quality traits in Nellore steers.
Ano de publicação: | 2016
Fonte/Imprenta: | Meat Science, v. 116, p. 78-85, June, 2016.
Idioma: | Inglês
Conteúdo: | Five hundred and seventy-five Nellore steers were evaluated for residual feed intake and residual feed intake and gain and their relationships between carcass, non-carcass and meat quality traits. RFI was measured by the difference between observed and predicted dry matter intake and RIG was obtained by the sum of &#8722; 1*RFI and residual gain. Efficient and inefficient animals were classified adopting ± 0.5 standard deviations from RFI and RIG mean. A mixed model was used including RFI or RIG and contemporary group as fixed effects, initial age as covariate and sire and experimental period as random effects, testing the significance of the regression slope for each evaluated trait. RIG was positively related to longissimus muscle area. Efficient-RFI animals had lower liver and internal fat proportions compared to inefficient-RFI animals. Efficient-RFI and efficient-RIG animals had 11.8% and 11.2% lower extracted intramuscular fat, compared to inefficient-RFI and inefficient-RIG animals, respectively. Efficient-RFI animals had tougher meat compared to inefficient-RFI animals.
Palavras-Chave: | Feed efficiency; Internal fat; Nellore steers; Visceral organs.
Thesagro: | Bos indicus; Gado zebu.
Thesaurus Nal: | Beef cattle; Feed conversion; meat quality; Meat tenderness; Zebu.

Categoria do assunto:

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L Ciência Animal e Produtos de Origem Animal

URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/157158/1/Feed-efficiency-indexes.pdf
Registro original: | Embrapa Gado de Corte (CNPGC)

Exemplares:

CPPSE - (23973-1) - UPC - AP - DD - PROCI-2016.00198 - NAS - 2017.00054 - DIS
CNPGC - (16783-1) - UPC - AP - DD -  -  -  - DIS