| 饲料中添加缩合单宁对凡纳滨对虾生长性能、体成分、血清生化及抗氧化指标的影响 |
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| 引用本文： | 彭凯,陈冰,莫文艳,吴汉,黄文.饲料中添加缩合单宁对凡纳滨对虾生长性能、体成分、血清生化及抗氧化指标的影响[J].动物营养学报,2022(2). |
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| 作者姓名： | 彭凯 陈冰 莫文艳 吴汉 黄文 |
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| 作者单位： | 广东省农业科学院动物科学研究所 |
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| 基金项目： | 国家自然科学基金(31902388);广东省自然科学基金面上项目(2018A0303130301,2021A1515010850);广州市基础与应用基础研究项目(202002030378);广东省农业科学院院长基金面上项目(201909);科技创新战略专项资金(高水平农科院建设)(R2018QD-075);2021乡村振兴战略专项资金(农业科技能力提升)(TS-1-6-17)。 |
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| 摘 要： | 本试验旨在研究饲料中添加缩合单宁对凡纳滨对虾生长性能、体成分、血清生化及抗氧化指标的影响。选择初体重约为1.38 g的凡纳滨对虾600尾,随机分为5组,每组3个重复,每个重复40尾。5组对虾投喂缩合单宁添加量分别为0 (CT0组,作为对照组)、0.5 (CT0.5组)、1.0(CT1组)、2.0(CT2组)、4.0 g/kg DM(CT4组)的5种等氮等脂试验饲料,试验期56 d。结果表明:随着饲料中缩合单宁添加量的增加,凡纳滨对虾的终末体重、增重率和特定生长率呈线性增加的趋势(0.050.05)。饲料中添加缩合单宁对凡纳滨对虾体成分、肌肉氨基酸含量和血清生化指标均未产生显著影响(P>0.05)。与CT0组相比,饲料中添加1.0~2.0 g/kg DM缩合单宁显著增加了血清过氧化氢酶和超氧化物歧化酶活性(P<0.05),显著降低了血清丙二醛含量(P<0.05)。CT4组凡纳滨对虾血清过氧化氢酶和超氧化物歧化酶活性显著低于CT0组(P<0.05)。综上所述,饲料中添加适量缩合单宁提高了凡纳滨对虾的生长性能和抗氧化能力,但不影响体成分、肌肉氨基酸含量和血清生化指标。以血清超氧化物歧化酶活性为评价指标,凡纳滨对虾饲料中缩合单宁的最适添加量为1.94 g/kg DM。
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| 关 键 词： | 缩合单宁 凡纳滨对虾 生长性能 抗氧化能力 |
Effects of Dietary Condensed Tannins on Growth Performance,Body Composition,Serum Biochemical and Antioxidant Indexes of Litopenaeus vannamei |
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| PENG Kai,CHEN Bing,MO Wenyan,WU Han,HUANG Wen.Effects of Dietary Condensed Tannins on Growth Performance,Body Composition,Serum Biochemical and Antioxidant Indexes of Litopenaeus vannamei[J].Acta Zoonutrimenta Sinica,2022(2). |
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| Authors: | PENG Kai CHEN Bing MO Wenyan WU Han HUANG Wen |
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| Institution: | (Key Laboratory of Animal Nutrition and Feed Science in South China,Ministry of Agriculture and Rural Affairs,Guangdong Key Laboratory of Animal Breeding and Nutrition,Institute of Animal Science,Guangdong Academy of Agricultural Sciences,Guangzhou 510640,China) |
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| Abstract: | This study was conducted to investigate the effects of dietary condensed tannins on growth performance,body composition,serum biochemical and antioxidant indexes of Litopenaeus vannamei. A total of 600 Litopenaeus vannamei with an initial body weight of approximately 1.38 g were randomly divided into 5 groups with 3 replicates per group and 40 shrimps per replicate. Shrimps in the 5 groups were fed 5 isonitrogenous and isolipidic experimental diets,which supplemented with 0(CT0 group,as control group),0. 5(CT0. 5 group),1.0(CT1 group),2.0(CT2 group)and 4.0 g/kg DM(CT4 group)of condensed tannins based on a basal diet,respectively. The feeding trial lasted for 65 days. The results showed that with the increase of dietary condensed tannins supplemental level,the final body weight,weight gain rate and specific growth rate of shrimps increased with a linear effect(0.050.05). Dietary condensed tannins did not affect the body composition,amino acid contents in muscle and serum biochemical indexes(P>0.05). Compared with CT0 group,diet supplemented with 1.0 to 2.0 g/kg DM condensed tannins significantly increased the serum catalase and superoxide dismutase activities(P < 0. 05),and significantly decreased serum malondialdehyde content(P <0.05). The serum catalase and superoxide dismutase activities in the CT4 group were significantly lower than those in the CT0 group(P<0.05). In conclusion,dietary appropriate amount of condensed tannins can improve the growth performance and antioxidant capacity of Litopenaeus vannamei,but do not affect body composition,muscle amino acid contents and serum biochemical indexes. Using serum superoxide dismutase activity as evaluation index,the optimal supplemental level of dietary condensed tannins is 1.94 g/kg DM.Chinese Journal of Animal Nutrition,2022,34(2):1165-1174] |
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| Keywords: | condensed tannins Litopenaeus vannamei growth performance antioxidant capacity |
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