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不同水平单宁复合蛋白对黄羽肉鸡免疫功能、抗氧化能力以及脂代谢的影响
范秋丽,陈志龙,谭淑君,王君雁,茅沈丽,林泽铃,蒋守群
0
(广东省农业科学院 动物科学研究所/畜禽育种国家重点实验室/农业农村部华南动物营养与饲料重点实验室/广东省畜禽育种与营养研究重点实验室, 广州 510640)
摘要:
为研究小麦-豆粕-花生粕型基础饲粮中添加不同水平单宁复合蛋白对1~48日龄黄羽肉鸡生长性能、血浆生化指标、免疫功能、抗氧化能力以及脂代谢的影响,540只初始体重为(40.33±0.05)g且健康状况良好的1日龄快大型麻黄肉公雏按照体重一致原则随机分为对照组(基础饲粮),单宁复合蛋白1组(基础饲粮添加300 mg/kg单宁复合蛋白),单宁复合蛋白2组(基础饲粮添加500 mg/kg单宁复合蛋白)共3个处理组,每组6个重复,每个重复30只鸡。试验期48 d。结果表明:1)不同处理组之间肉鸡生长性能差异不显著(P>0.05)。2)与对照组相比,单宁复合蛋白1、2组血浆中谷丙转氨酶(ALT)活性和尿酸(UA)含量均显著升高(P<0.05),且单宁复合蛋白2组血浆中葡萄糖(GLU)含量显著降低(P<0.05),单宁复合蛋白1组血浆中总胆红素(TBIL)含量显著降低(P<0.05)。3)与对照组相比,空肠黏膜中白细胞介素6(IL-6)含量在单宁复合蛋白1组中显著降低(P<0.05)。4)与对照组相比,单宁复合蛋白2组血浆中微量丙二醛(MDA)含量显著降低(P<0.05),同时,肝脏中总抗氧化能力(T-AOC)和还原型谷胱甘肽(GSH)含量均显著升高(P<0.05)。5)与对照组相比,肝脏中雌二醇(E2)、甘油三酯(TG)、总胆固醇(TC)和低密度脂蛋白胆固醇(LDL-C)含量以及脂肪合成酶(FAS)活性在单宁复合蛋白1、2组中均显著降低(P<0.05)。综上,小麦-豆粕-花生粕型饲粮中添加300和500 mg/kg的单宁复合蛋白均可调节肉鸡脂代谢,同时300 mg/kg单宁复合蛋白可提高肉鸡免疫功能,500 mg/kg单宁复合蛋白可提高肉鸡抗氧化能力;综合考虑以上指标和生长性能,推荐单宁复合蛋白的添加量为300 mg/kg。
关键词:  单宁复合蛋白  黄羽肉鸡  生长性能  免疫功能  抗氧化能力  脂代谢
DOI:10.11841/j.issn.1007-4333.2023.02.09
投稿时间:2022-05-27
基金项目:财政部和农业农村部:国家现代农业产业技术体系(CARS-41);广东省重点领域研发计划项目(2020B0202090004);国家重点研发专项(2021YFD300404);广东省自然科学基金项目(2021A1515012412、2021A1515010830);广东省农业科学院科技计划项目(202106TD、R2019PY-QF008)
Effects of different levels of tannalbin on immune function, antioxidant capacity and lipid metabolism of yellow feathered chickens
FAN Qiuli,CHEN Zhilong,TAN Shujun,WANG Junyan,MAO Shenli,LIN Zeling,JIANG Shouqun
(Institute of Animal Science/State Key Laboratory of Livestock and Poultry Breeding of Ministry ofAgriculture and Rural Affairs/Guangdong Key Laboratory of Animal Breeding and Nutrition, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China)
Abstract:
The aim of this study was to investigate the effects of adding different levels of tannalbin to wheat soybean peanut meal basal diet on growth performance, plasma biochemical indices, immune function, antioxidant capacity and lipid metabolism of yellow-feathered chickens during 1 to 48 days of age. A total of 540 one-day-old male rapid ephedra chickens with an initial body weight of(40. 33±0. 05)g in good health were randomly assigned to 3 groups according to the principle of consistent body weight, each group with 6 replicates and 30 chickens in each replicate. Control group(basal diet), tannalbin 1 groups(basal diet supplementation with 300 mg/kg tannalbin), tannalbin 2 groups(basal diet supplementation with 500 mg/kg tannalbin). The experiment lasted for 48 days. The results showed as follows: 1)Dietary different levels of tannalbin had no significant effects on growth performance of chickens(P>0. 05). 2)Compared to the control group, alanine aminotransferase(ALT)activity and uric acid(UA)content in plasma of tannalbin 1 and 2 groups were significantly increased(P<0. 05), glucose(GLU)content in plasma of tannalbin 2 group was significantly decreased(P<0. 05), and total bilirubin(TBIL)content in plasma of tannalbin 1 group was significantly decreased(P<0. 05). 3)Compared to the control group, interleukin 6(IL-6)content in jejunal mucosa of tannalbin 1 group was significantly decreased(P<0. 05). 4)Compared to the control group, malondialdehyde(MDA)content in plasma of tannalbin 2 group was significantly decreased(P<0. 05), while total antioxidant capacity(T-AOC)and reduced glutathione(GSH)content in liver of tannalbin 2 group were significantly increased(P<0. 05). 5)Compared to the control group, contents of estradiol(E2), triglyceride(TG), total cholesterol(TC)and low density lipoprotein cholesterol(LDL-C), and activity of fatty acid synthetase(FAS)in liver of tannalbin 1 and 2 groups were significantly decreased(P<0. 05). In summary, application of 300 or 500 mg/kg tannalbin to wheat soybean peanut meal diet can regulate lipid metabolism of chickens respectively, and 300 mg/kg tannalbin can improve immune function, 500 mg/kg tannalbin can improve antioxidant capacity. Considering the above indicators and growth performance, the recommended supplemental level of tannalbin is 300 mg/kg.
Key words:  tannalbin  yellow-feathered chickens  growth performance  immune function  antioxidant capacity  lipid metabolism