动物营养学报Issue(3)：732-738,7.DOI:10.3969/j.issn.1006-267x.2014.03.024
酵母硒和纳米硒对鹌鹑产蛋后期生产性能、蛋品质、蛋中硒含量及血清抗氧化指标的影响
Effects of Selenium Yeast and Nano-Selenium on Performance, Egg Quality, Egg Selenium Content and Serum Antioxidant Indices of Quails During the Late Laying Period
摘要
Abstract
This experiment was conducted to study the effects of yeast selenium and nano-selenium on perform-ance, egg quality, egg selenium content and serum antioxidant indices of quails during the late laying period. A total of 300 healthy quails (300 days of age) were randomly divided into 5 groups with 6 replicates per group and 12 quails per replicate. Quails in the control group were fed a basal diet, and quails in experimental groups were fed the basal diet supplemented with 0 . 2 , 0 . 4 mg/kg yeast selenium and 0 . 2 , 0 . 4 mg/kg nano-selenium, respcitively. The adjustment period lasted for 7 days, and the experimental period lasted for 42 days. The results showed as follows:1) compared with the control group, the feed to egg ratio in 0. 2 mg/kg selenium yeast group was significantly decreased ( P<0 . 05 ) , and the laying rate in 0 . 4 mg/kg selenium yeast group was significantly increased ( P<0 . 05 );the laying rate and average egg weight in 0 . 2 mg/kg nano-sele-nium group were significantly increased ( P <0 . 05 ) , and the feed to egg ratio was significantly decreased ( P<0 . 05 ); the laying rate in 0 . 4 mg/kg nano-selenium group was significantly increased ( P<0 . 05 ) . 2 ) Two kinds of selenium sources had no significant effects on shape index, yolk index and shell thickness during the late laying period ( P>0 . 05 ) , but it could significantly delay the decrease of Haugh units during storage ( P<0 . 01 ) . The yolk color and Haugh unit in 0 . 4 mg/kg yeast selenium and nano-selenium groups were sig-nificantly increased compared with the control group (P<0. 01). 3) At the 14th, 28th and 42nd days, the egg selenium content in nano-selenium and selenium yeast groups was significantly increased ( P<0 . 01 ) . 4 ) The serum glutathione peroxidase, total superoxide disumutase activiies and total antioxidative capacity in nano-selenium and selenium yeast groups were significantly increased ( P<0 . 01 ) , but the malondialdehyde content was significantly decreased compared with the control group ( P<0 . 01 ) . The antioxidant effect of nano-sele-nium was better than that of selenium yeast. In conclusion, feeding effect of nano-selenium is better than sele-nium yeast of quails during the late laying period, and the optimal supplemental level of nano-selenium is 0. 2 mg/kg.关键词
鹌鹑/酵母硒/纳米硒/生产性能/蛋中硒含量/抗氧化Key words
quails/selenium yeast/nano-selenium/performance/egg selenium content/antioxidant分类
农业科技引用本文复制引用
曲湘勇,蔡超,何俊,魏艳红,毛凌峰,袁小平,李学成,孙安权..酵母硒和纳米硒对鹌鹑产蛋后期生产性能、蛋品质、蛋中硒含量及血清抗氧化指标的影响[J].动物营养学报,2014,(3):732-738,7.基金项目
湖南省长沙市科技局科技计划专项(K1205286-21) （K1205286-21）
