Carcass and meat traits of feedlot Nellore bulls fed different dietary energy sources
AUTOR(ES)
Maia Filho, Geraldo Helber Batista, Barbosa, Fabiano Alvim, Emerick, Lucas Luz, Souza, Rafahel Carvalho, Figueiredo, Tadeu Chaves, Azevedo, Henrique de Oliveira, Cavalcanti, Luigi Francis Lima, Mandarino, Raphael Amazonas
FONTE
R. Bras. Zootec.
DATA DE PUBLICAÇÃO
2016-05
RESUMO
ABSTRACT The objective of this experimental study was to evaluate the effects of different dietary energy sources on the carcass and meat traits of feedlot Nellore bulls. A total of 48 Nellore bulls at 32 months of age with 354.35±19.56 kg body weight were studied for 85 days. The bulls were allotted to four groups of 12 individuals: Whole corn grain - diet based on whole corn grain; Ground corn - diet based on ground corn grain; Citrus pulp - diet based on citrus pulp; and Steam-flaked corn - diet based on steam-flaked corn. Diets did not influence carcass quality or meat quality. Average values for fat depth, rib eye area, shear force, total cooking losses, and carcass yield were 4.97 mm, 74.71 cm2, 5.85 kgf, 26.82%, and 52.0%, respectively. Based on the quantitative and qualitative analysis of this study, there is no restriction for the adoption of any of the tested diets in feedlots with Nellore bulls and the evaluated energy sources may be used to replace ground corn grain.
Documentos Relacionados
- Fatty acid profile, meat quality, and carcass traits of Nellore young bulls fed different sources of forage in high-concentrate diets with crude glycerin
- Performance, carcass traits, meat quality and economic analysis of feedlot of young bulls fed oilseeds with and without supplementation of vitamin E
- Performance and carcass characteristics of Nellore young bulls fed different sources of oils, protected or not from rumen degradation
- Animal performance and carcass characteristics of Nellore young bulls fed coated or uncoated urea slaughtered at different weights
- Feedlot performance, feed efficiency and carcass traits in Nellore cattle selected for postweaning weight