【摘要】 【目的】研究速溶红茶粉添加到饲料中对红螯螯虾生长性能、肌肉脂类与抗氧化能力的影响，为虾类天然绿色优质饲料选配提供参考，提升茶及副产物的综合利用率。【方法】以1%～6%的6个不同水平速溶红茶粉添加至饲料中，饲喂红螯螯虾（Cherax quadricarinatus）84 d后，测定其体重、头胸甲长，分析肌肉与肝胰腺总蛋白（TP）含量、肌肉总胆固醇（TC）、甘油三酯（TG）、低密度胆固醇（LDL-C）、高密度胆固醇（HDL-C）含量及肝胰腺总抗氧化能力（T-AOC）、谷胱甘肽过氧化物酶（GSH-Px）、过氧化氢酶（CAT）、超氧化物歧化酶（SOD）、碱性磷酸酶（AKP）等抗氧化酶活性。【结果】红茶粉添加水平≤2%时，红螯螯虾生长性能、TP、肌肉HDL-C含量提高，虾肝胰腺抗氧化酶T-AOC、GSH-Px、CAT、SOD、AKP活性增强，肌肉TC、TG、LDL-C含量降低；红茶粉添加水平>2%时，红螯螯虾抗氧化酶活性增强较显著，但生长性能、虾TP含量降低。【结论】在红螯螯虾饲料中添加较低水平的红茶粉有助于提高虾体的抗氧化能力，促进虾的生长及免疫活性，但添加水平过高时，对虾的生长产生抑制作用。研究得出红螯螯虾饲料中红茶粉添加水平以2%左右为宜。更多还原

【Abstract】 【Objective】Effects of adding an instant black tea powder in feed on the growth performance, muscle lipids,and antioxidant capacity of Cherax quadricarinatus were studied to improve the aquaculture through utilization of the tea byproduct. 【Method】A black tea powder was added in the forage at 1% to 6% to feed the shrimps in a confined pond.The body weight and carapace length of the shrimps were measured 84 d after the start of the feeding. Contents of muscle and hepatopancreas TP(total protein), muscle TC, TG, LDL-C, and HDL-C as well as activities of antioxidants T-AOC,GSH-Px, CAT, SOD, and AKP in hepatopancreas were determined. 【Result】At the addition equal to or levels less than 2%, the black tea power significantly enhanced the growth performance, increased the TP and muscle HDL-C,raised the activities of T-AOC, GSH-Px, CAT, SOD, and AKP in the liver and pancreas, but reduced the contents of muscle TC, TG, and LDL-C of the shrimps. Although an addition beyond 2% significantly boosted the antioxidant enzyme activity, it suppressed the growth with a declined TP in the shrimps. 【Conclusion】Addition of the black tea powder at a level below 2% in the shrimp feed appeared to stimulate the antioxidants, immunity, and growth of C.quadricarinatus.更多还原