Effects of quantitative feed restriction and sex on carcass traits, meat quality and meat lipid profile of Morada Nova lambs

• DOI: 10.1186/s40104-017-0175-3
• Publication Date: 2017-05-22T15:23:59Z
• Authors: Thiago L. A. C. d...; Elzânia S. Pereira; Ivone Y. Mizubuti; Ana C. N. Campos; Marília W. F. Per...; Eduardo L. Heinzen; Hilton C. R. Maga...; Leilson R. Bezerra; Luciano P da Silva; Ronaldo L. Oliveira
• Keywords: Palmitoleic acid; Stearic acid

An experiment was conducted to evaluate the effects of feed restriction (FR) and sex on quantitative qualitative carcass traits Morada Nova lambs. Thirty-five animals with an initial body weight 14.5 ± 0.89 kg age 120 d were used in a completely randomized study 3 × factorial scheme consisting three sexes (11 entire males, 12 castrated males females) levels feeding (ad libitum – AL 30% 60% FR). Entire presented greater hot cold weights (P < 0.05), followed by females. However, yield higher for females than males. Luminosity values influenced 0.05) sex, presenting Females showed concentrations linoleic acid arachidonic meat longissimus thoracis muscle. The submitted intake FR similar > concentrations, palmitic acid, palmitoleic stearic oleic conjugated those FR. had ω6/ω3 ratio lower h/H ratio, feeding. diet concentration desirable fatty acids addition atherogenicity index (AI) thrombogenicity (TI). Lambs different carcasses without total influence chemical physical characteristics. lipid profile less favorable consumer health when female or restriction.