PDF(Pubmed)
Abstract：
This study aimed to evaluate the effects of diets supplemented with various levels of complex antioxidants (CA) containing tertiary butylhydroquinone (TBHQ) and tea polyphenols (TP) on growth performance, meat quality of breast and leg muscles, serum biochemistry, and antioxidant capacity of serum, liver, breast meat, jejunum, and ileum in broilers. A total of 600 one-day-old Arbor Acres male broilers with similar body weights were randomly divided into three groups (10 replicates/group, 20 broilers/replicate). Birds in the three experimental groups were fed a basal diet with CA at 0, 300, and 500 mg/kg. The results showed that supplementing with 300 mg/kg CA significantly increased (p < 0.05) 42 d BW and 22-42 d ADG, and markedly decreased (p < 0.05) 22-42 d F: G ratio in comparison to the control group. Birds fed a diet with 300 mg/kg CA had a higher (p < 0.05) pH of chicken meat at 24 h and 48 h post mortem and lower (p < 0.05) yellowness values (b*) of chicken meat at 45 min and 24 h post mortem, along with a lower (p < 0.05) cooking loss. Supplementing with 300 mg/kg CA significantly increased (p < 0.05) serum and liver T-SOD activity, serum T-AOC level, as well as jejunual GST activity, and significantly decreased (p < 0.05) liver MDA content when compared with the control group. These results indicate that diet supplementation with 300 mg/kg CA containing TBHQ and TP could improve growth performance and meat quality by increasing the antioxidant capacity of broilers.
摘要：
本研究旨在评估添加不同水平的复合抗氧化剂（CA）含叔丁基对苯二酚（TBHQ）和茶多酚（TP）对生长性能的影响。乳房和腿部肌肉的肉质，血清生物化学,和血清的抗氧化能力，肝脏,胸肉,空肠,和肉鸡的回肠。将600只体重相近的1日龄ArborAcres雄性肉鸡随机分为3组(10个重复/组,20只肉鸡/重复)。三个实验组中的鸟类分别以0、300和500mg/kg的CA饲喂基础日粮。结果表明，添加300mg/kgCA显着增加（p<0.05）42dBW和22-42dADG，与对照组相比，22-42dF：G比率显着降低（p<0.05）。饲喂300mg/kgCA的禽类在死后24小时和48小时的鸡肉pH值较高（p<0.05），在45分钟和24小时后的鸡肉黄度值（b*）较低（p<0.05）。伴随着较低的(p<0.05)烹饪损失。补充300mg/kgCA显著提高(p<0.05)血清和肝脏T-SOD活性,血清T-AOC水平,以及空肠GST活动，与对照组相比，肝脏MDA含量显着降低（p<0.05）。结果表明，饲粮中添加含TBHQ和TP的300mg/kgCA可以通过提高肉仔鸡的抗氧化能力来改善肉仔鸡的生长性能和肉品质。
