Department of Animal Science, Universidade Estadual de Londrina (UEL), Londrina-PR 86057-970, Brazil.
Department of Pathological Sciences, Universidade Estadual de Londrina Londrina - UEL, Londrina-PR 86057-970, Brazil.
Poult Sci. 2018 Sep 1;97(9):3337-3342. doi: 10.3382/ps/pey174.
Fermented products and components of Saccharomyces cerevisiae have been widely used in animal nutrition to promote the development and quality of broilers. This study aims to evaluate different levels of inclusion (0, 250, 750, 1,500 g/t) of S. cerevisiae fermentation product (SCFP) in broiler feed to gauge its effect on carcass characteristics and cuts beyond the quality of breast meat. For analyses of carcass yield, cuts, and meat quality, 16 broilers per treatment were slaughtered. The meat quality analyses were performed 24 h after slaughter and evaluated color, pH, water holding capacity, cooking loss, and shear force. Lipid oxidation was determined in frozen breast samples stored at -20°C for 45 d. The results indicate that different levels of inclusion of SCFP provided no changes in carcass yield, color, water holding capacity, cooking loss, and shear force; however, inclusion of 1,500 g/t of SCFP increased leg yield and reduced pH. The inclusion of 750 g/t of SCFP decreased the lipid oxidation of breast meat (P < 0.05). This study concluded that inclusion of SCFP may improve leg yield and the lipid oxidation of breast meat.
酵母发酵产物及其成分已广泛应用于动物营养,以促进肉鸡的生长发育和提高肉品质。本研究旨在评估不同添加水平(0、250、750、1500 g/t)的酵母发酵产物(SCFP)对肉鸡饲料的影响,除了对胸肉品质的影响外,还包括胴体特征和分割肉的影响。为了分析胴体产率、分割肉和肉品质,每个处理组选择 16 只肉鸡进行屠宰。肉品质分析在屠宰后 24 小时进行,评估肉色、pH 值、水分保持能力、蒸煮损失和剪切力。在 -20°C 下储存 45 天的冷冻胸肉样本中测定脂质氧化。结果表明,添加不同水平的 SCFP 对胴体产率、颜色、水分保持能力、蒸煮损失和剪切力没有影响;然而,添加 1500 g/t 的 SCFP 增加了腿肉产量,降低了 pH 值。添加 750 g/t 的 SCFP 降低了胸肉的脂质氧化(P < 0.05)。本研究得出结论,添加 SCFP 可能会提高腿肉产量和胸肉的脂质氧化。