College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, PR China.
College of Animal Science and Technology, Shandong Agriculture University, Tai'an, PR China.
J Sci Food Agric. 2022 Jan 30;102(2):575-583. doi: 10.1002/jsfa.11386. Epub 2021 Jul 2.
Yeast hydrolysate (YH) has multiple salutary biological activities. Nevertheless, the application of YH in broiler production is limited. This study was conducted to evaluate the protective effects of YH derived from Saccharomyces cerevisiae by exploring growth performance, serum parameters, organs relative weight, carcass traits, meat quality and antioxidant status of broilers.
Supplementing YH linearly and quadratically improved (P < 0.05) body weight gain and gain-to-feed ratio compared to that in the control group. Triglycerides, low-density lipoprotein cholesterol and total cholesterol in serum, the decline in pH and cooking loss of breast muscle, and malonaldehyde concentration in serum and liver were decreased linearly and/or quadratically by YH (P < 0.05), whereas high-density lipoprotein cholesterol in serum, superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) activities in serum, GSH-Px activity in liver, glutathione content in serum and liver, eviscerated yield rate and chest muscle yield, and the relative weight of spleen and liver were linearly and/or quadratically increased (P < 0.05). Moreover, YH enhanced the mRNA levels of nuclear factor erythroid 2-related factor 2, heme oxygennase-1 (HO-1), GSH-Px1 and SOD1 (linear and/or quadratic, P < 0.05).
Dietary YH beneficially affected growth performance, serum parameters, organ relative weight, carcass traits, meat quality and antioxidant status in broilers, indicating its potential application as a promising feed additive in broiler production. © 2021 Society of Chemical Industry.
酵母水解物（YH）具有多种有益的生物学活性。然而，YH 在肉鸡生产中的应用受到限制。本研究旨在通过研究酵母水解物对肉鸡生长性能、血清参数、器官相对重量、屠体特性、肉质和抗氧化状态的影响，评估来源于酿酒酵母的 YH 的保护作用。
与对照组相比，YH 线性和二次增加（P<0.05）了体重增加和饲料增重比。血清中的甘油三酯、低密度脂蛋白胆固醇和总胆固醇、胸肌 pH 值和蒸煮损失以及血清和肝脏中的丙二醛浓度线性和/或二次降低（P<0.05），而血清中的高密度脂蛋白胆固醇、超氧化物歧化酶（SOD）和谷胱甘肽过氧化物酶（GSH-Px）活性、血清和肝脏中的 GSH-Px 活性、血清和肝脏中的谷胱甘肽含量、屠体率和胸肌率、以及脾脏和肝脏的相对重量线性和/或二次增加（P<0.05）。此外，YH 增强了核因子红细胞 2 相关因子 2、血红素加氧酶-1（HO-1）、GSH-Px1 和 SOD1 的 mRNA 水平（线性和/或二次，P<0.05）。
日粮 YH 对肉鸡的生长性能、血清参数、器官相对重量、屠体特性、肉质和抗氧化状态有有益的影响，表明其作为肉鸡生产中一种有前途的饲料添加剂具有潜在的应用价值。
