日粮中添加高水平纳米硒对蛋鸡肝脏硒含量及抗氧化能力的影响  

Effects of dietary supplemental nano-se levels on liver selenium content and antioxidant abilities in hens

作　　者：朱风华[1] 朱连勤[1] 孙金全[2] 孟祥霞[3] 邹玲[1] 

机构地区：[1]青岛农业大学动物科技学院,山东青岛266109 [2]山东科技大学,山东青岛266510 [3]青岛农业大学资环学院,山东青岛266109

出　　处：《中国兽医学报》2010年第11期1537-1539,共3页Chinese Journal of Veterinary Science

基　　金：青岛市科技计划资助项目(08-1-3-14-JCH)

摘　　要：选取288只42周龄健康农大三号商品蛋鸡,随机分为6个组,每组设4个重复,在基础日粮中以亚硒酸钠的形式添加硒0.3 mg/kg;其余各组以纳米硒的形式分别添加硒0.3、0.5、2.5、5.01、0.0 mg/kg。试验期为60 d。结果显示：试验至30 d,添加0.5~10.0 mg/kg纳米硒能显著提高肝脏硒的含量,添加纳米硒能显著提高T-AOC活性（P〈0.05）,极显著提高T-SOD活性（P〈0.01）。试验至60 d,添加2.5~10.0 mg/kg纳米硒能极显著提高GSH-Px活性,添加0.5~10 mg/kg极显著降低NO含量（P〈0.01）。结果表明,日粮中添加高水平的纳米硒能提高蛋鸡肝脏的抗氧化能力。Two hundred and eighty eight 42-weeks-old healthy Nongda 3 hens were randomly divided into six groups of 48 each.The hens in the control groups were fed the diet adding selenium 0.3 mg/kg as Na2SeO3.The hens in the other groups were fed the diet adding selenium 0.3,0.5,2.5,5.0 and 10 mg/kg as nano-selenium,respectively.The experiment lasted for 60 days.The results showed that,at 30 day,the liver selenium content was higher in the 0.5-10 mg/kg nano-selenium groups than in the other groups.The liver T-AOC and T-SOD activities were higher in all nano-selenium groups than in the control groups（P0.05,P0.01）.At 60 day,The liver GSH-Px activities was higher in the2.5-10 mg/kg nano-selenium groups than other groups（P0.01）.The liver NO content in 0.5-10 mg/kg nano-selenium groups were lower than other groups（P0.01）.To sum up,the high level nano-selenium in ration can increase antioxidant abilities in hen .

关 键 词：纳米硒 抗氧化能力 肝脏 蛋鸡 

分 类 号：S816.7[农业科学—饲料科学] S852.2[农业科学—畜牧学]