无机硒对青年獭兔生产性能及抗氧化性能的影响

发布时间：2018-03-08 08:39

本文选题：硒　切入点：兔　出处：《江苏农业科学》2017年02期 　论文类型：期刊论文

【摘要】：为了探讨硒对獭兔生产性能及血浆抗氧化能力的影响,将90只初始体质量为(690±7.0)g的青年獭兔分为C、SS和D组3组,每组30只(雌雄各半)。C组直接饲喂基础日粮,SS组和D组日粮添加亚硒酸钠,经测定C组、SS组和D组日粮硒元素含量分别为0.20、0.36、0.75 mg/kg,其他营养指标3组均一致,饲养30 d。试验结果表明:D组试验兔采食0.72 mg/kg硒水平日粮后1周开始出现零星死亡,直至3周后D组试验兔全部死亡。与C组相比,SS组獭兔日增质量显著降低50.5%(P0.01),腹泻率提高16.7百分点,死亡率提高13.4百分点;SS组血液中硒含量与C组相比提高42.96%(P0.05);SS组血浆中SOD活性、T-AOC总抗氧化能力与C组相比分别降低19.77%与30.35%(P0.01),MDA含量与C组相比提高90.70%(P0.01)。可见,兔日粮中无机硒添加量安全范围窄,过量添加会引起獭兔生产性能及抗氧化能力显著降低甚至死亡。
[Abstract]:In order to investigate the effect of selenium on the production performance and plasma antioxidant ability of Rex rabbits, 90 young Rex rabbits with initial body mass of 690 卤7.0 g were divided into three groups: group C (SS) and group D (group D). 30 rats in each group (half of male and female) were fed basal diet SS group and D group fed diet supplemented with sodium selenite directly. The selenium contents of SS group and D group were 0.20 ~ 0.36 ~ 0.75 mg / kg, respectively, and the other nutritional indexes were the same in three groups. After feeding for 30 days, the experimental results showed that sporadic death began to occur 1 week after 0. 72 mg/kg selenium diet was fed to the experimental rabbits in group D. After 3 weeks, all the rabbits in group D died. Compared with group C, the average daily gain of rex rabbits in SS group was significantly lower than that in group C, and the average daily gain of group SS was significantly lower than that of group C, and the diarrhea rate was increased by 16.7 percentage points. Mortality increased by 13.4 percentage points in SS group compared with C group, the content of blood selenium increased by 42.96% and the total antioxidant capacity of T-AOC in plasma of SS group was decreased by 19.77% and 30.35% respectively compared with that of C group, and the content of blood selenium in SS group was increased by 90.70% compared with that of group C, so the total antioxidant capacity of T-AOC in SS group was higher than that in group C, and it was found that the content of T-AOC in SS group was significantly higher than that in group C. The safe range of inorganic selenium supplementation in rabbit diet was narrow, and excessive addition of selenium could significantly reduce the production performance and antioxidant capacity of Rex rabbits and even lead to death.
【作者单位】：江苏省农业科学院畜牧研究所;南京农业大学动物医学院;
【基金】：江苏省农业科技自主创新资金[编号:CX(14)2078]
【分类号】：S829.1

【参考文献】