桉叶多酚对胡须鸡肌肉抗氧化性能和肉质品质影响的研究

Effect of Eucalyptus Polyphenols on the Antioxidant Activity and Meat Quality of Beard Chicken

摘要:

本文旨在研究在日粮中添加桉叶多酚对胡须鸡肌肉抗氧化性能和肉质品质的影响。试验选用324只90日龄胡须鸡，设置6个实验组，每组6个重复，每个重复9只鸡，连续喂养40 d，宰杀后采集胸肌和腿肌，分析胡须鸡肌肉抗氧化性能、肉色、滴水损失和营养成分等指标。结果表明：与对照组相比，在抗氧化指标方面，桉叶多酚可以显著提高胡须鸡肌肉中谷胱甘肽过氧化物酶（GSH-PX）活力，同时显著降低丙二醛值（MDA）含量；在肉质品质方面，桉叶多酚能够显著改善肌肉肉色、提高肌肉中肌内脂肪含量；此外，桉叶多酚显著改善肌肉脂肪酸组成，提高油酸、亚麻酸相对含量，降低饱和脂肪酸含量，提高了肉质品质。综上所述，桉叶多酚具有提高胡须鸡肌肉抗氧化性能、改善肉质品质的作用，本文为桉叶多酚在禽类高品质肉制品方面的应用提供了实验基础。

Abstract:

The purpose of this paper is to study the effects of dietary supplement containing eucalyptus polyphenols (EPE) on the antioxidant activity and meat quality of beard chicken muscles. A total of 324 90-day-old beard chickens were randomly divided into six groups (six replicates/group and nine chickens/group). The animals were fed for 40 days, and breast and thigh muscles were collected after slaughter to analyze the antioxidant activity, meat color, drip loss, nutrients, etc. of beard chicken muscles. In terms of the indicators of antioxidant activity, the results showed that EPE could significantly enhance the activity of glutathione peroxidase (GSH-PX) and significantly reduce the malondialdehyde (MDA) content of beard chicken muscle. In the case of meat quality, EPE could obviously improve the meat color and increase the content of intramuscular fat. Simultaneously, EPE could obviously improve the composition of fatty acids, enhance the contents of oleic and linolenic acid, and reduce the content of saturated fatty acids, in order to improve the meat quality. In summary, EPE could obviously improve the antioxidant activity of beard chicken muscle and enhance the meat quality.