动物营养学报2016，Vol.28Issue(4)：1177-1185,9.DOI:10.3969/j.issn.1006-267x.2016.04.028
饲粮中添加不同硒源对产蛋鸡生产性能和抗氧化能力的影响
Effects of Dietary Supplementation of Different Selenium Sources on Production Performance and Antioxidant Activity of Laying Hens
摘要
Abstract
This experiment was conducted to compared the effects of selenium supplementation as forms of so-dium selenite ( SS) , selenium yeast ( SY) , selenium methionine ( SM) or nano-selenium ( NS) on laying per-formance, egg quality, plasma antioxidant activity and egg selenium content in laying hens, with the aim to provide theoretical guidance for the application of selenium for laying hen industry. Five hundred and forty healthy Hy-Line Grey laying hens of 18-week-old were randomly allotted into 5 groups with 6 replicates of 18 hens each. The control group was fed a basal diet without adding exogenous selenium source, and the other four groups were fed the basal diets supplemented with SS, SY, SM or NS containing 0.30 mg/kg selenium, respectively. The analyzed values of selenium content in diets were 0.08, 0.37, 0.38, 0.34 and 0.41 mg/kg, respectively. The feed trail lasted for eight weeks followed an adaptation period of one week. The results showed as follows:1) there were no significant differences on laying performance and egg quality among dif-ferent selenium treatments (P>0.05). 2) Compared with the control group, dietary addition of 0.30 mg/kg selenium increased the glutathione peroxidase ( GSH-Px) activity significantly ( P<0.05) . The GSH-Px activity in NS group was the highest at the end of 4th week, and got higher in SY group and NS group at the end of 8th week. Compared with the control group, total antioxidant capacity ( T-AOC) in the other groups were higher, and T-AOC in NS group was significantly higher than the others at the end of 4th and 8th week (P<0.05). There were no significant differences on the superoxide dismutase activity and malondialdehyde content among all groups ( P>0.05) . 3) Compared with the control group, the addition of four selenium sources in basal diet could significantly increase egg selenium content ( P<0.05) , and the egg selenium content in SY group was el-evated the most than any of other three groups (P<0.05). In conclusion, production performance and egg quality of laying hens are not affected by selenium sources, GSH-Px activity and T-AOC in plasma of laying hens can be markedly improved by addition of any selenium source especially with SY or NS, and the egg sele-nium content can be deposited more efficiently by SY supplementation than other sources of selenium like SS, SM or NS.关键词
硒源/蛋鸡/抗氧化能力/鸡蛋硒含量Key words
selenium sources/laying hens/antioxidant activity/egg selenium content分类
农业科技引用本文复制引用
孙庆艳,武书庚,张海军,岳洪源,王晶,齐广海..饲粮中添加不同硒源对产蛋鸡生产性能和抗氧化能力的影响[J].动物营养学报,2016,28(4):1177-1185,9.基金项目
现代农业产业技术体系( CARS-41-K13) （ CARS-41-K13）
家禽产业技术体系北京市创新团队( CARS-PSTP ) （ CARS-PSTP ）
国家科技支撑计划(2011BAD26B03) （2011BAD26B03）
