动物营养学报2018，Vol.30Issue(3)：902-909,8.DOI:10.3969/j.issn.1006-267x.2018.03.013
营养水平和酵母硒对烟台黑猪生长性能、养分表观消化率及血清抗氧化指标的影响
Effects of Nutrient Level and Yeast Selenium on Growth Performance, Nutrient Apparent Digestibility and Serum Antioxidant Indexes of Yantai Black Pigs
摘要
Abstract
The objective of this experiment was to study the effects of nutrient level and yeast selenium on growth performance,nutrient apparent digestibility and serum antioxidant indexes of Yantai black pigs.Fortyeight healthy Yantai black pigs with body weight of (70.30±1.30) kg were randomly divided into 4 groups with 4 replicates per group and 3 pigs per replicate.Pigs in group Ⅰ were fed a low nutrient level diet (digestible energy level was 11.19 MJ/kg,crude protein level was 12.28％),pigs in group Ⅱ were fed the low nutrient level diet+0.5 mg/kg yeast selenium,pigs in group Ⅲ were fed a high nutrient level diet (digestible energy level was 13.11 MJ/kg,crude protein level was 14.73％),pigs in group Ⅱ were fed the high nutrient level diet+0.5 mg/kg yeast selenium.The pre-experimental period lasted for 7 days,and the experimental period lasted for 105 days.The results showed as follows:1) the average daily gain (ADG) of groups Ⅲ and Ⅳ was significantly higher than that of groups Ⅰ and Ⅱ (P＜0.01),the average daily feed intake (ADFI) of group Ⅳ was significantly higher than that of groups Ⅰ and Ⅱ (P＜0.01),the ratio of feed to gain (F/G) of group Ⅳ was decreased by 4.60％ and 5.74％ compared with that of groups Ⅰ and Ⅱ (P＜0.01),respectively.2) The crude protein apparent digestibility of group Ⅳ was increased by 2.73％ and 3.17％ compared with that of groups Ⅰ and Ⅱ (P＜0.01),respectively;which increased by 0.82％ than that of group Ⅲ (P＞0.05).3)The superoxide dismutase (SOD),glutathione peroxidase (GSH-Px) activities and total antioxidant capacity (T-AOC) in serum of groups Ⅱ and Ⅳ were significantly higher than those of groups Ⅰ and Ⅲ (P＜0.01),and the serum malondialdehyde (MDA) content was significantly lower than that of groups Ⅰ and Ⅲ (P＜0.01).4) On the growth performance,nutrient apparent digestibility and serum antioxidant indexes,there was no interaction between yeast selenium and nutrition level (P＞0.05).It is concluded that under the experimental conditions,nutrient level has significant effects on the growth performance and crude protein apparent digestibility of Yantai black pigs,yeast selenium can significantly improve the antioxidant capacity of Yantai black pig.关键词
烟台黑猪/营养水平/酵母硒/生长性能/血清抗氧化指标Key words
Yantai black pigs/nutrient level/yeast selenium/growth performance/serum antioxidant indexes分类
农业科技引用本文复制引用
张华杰,徐栋,唐敏,于光辉,宋春阳..营养水平和酵母硒对烟台黑猪生长性能、养分表观消化率及血清抗氧化指标的影响[J].动物营养学报,2018,30(3):902-909,8.基金项目
威海市科技发展计划项目支持(2014GNS002) （2014GNS002）
山东省现代农业产业技术体系生猪创新团队项目(SDAIT-08-08) （SDAIT-08-08）
