摘要
研究了相同的生长环境条件下,用3种不同的饲料喂养克氏原螯虾两个月后虾体内免疫指标、消化酶、氨基酸和虾体生长速度的变化情况。结果表明,生物饲料对克氏原螯虾血液中的超氧化物歧化酶、过氧化氢酶活性有显著影响(P<0.05),而酸性磷酸酶、溶菌酶差异不显著(P>0.05)。3种饲料对克氏原螯虾肌肉中氨基酸的组成及含量影响不大,必需氨基酸的组成、含量及与总氨基酸的比值也不因投喂了不同的饲料而发生明显的变化。此外,投喂生物饲料后克氏原螯虾的养殖效果与品牌饲料无明显差异,同时其体内的胰蛋白酶和淀粉酶活性高于投喂普通饲料,且胰蛋白酶活性差异显著(P<0.05),因此投喂生物饲料有增强克氏原螯虾的免疫力、提高其存活力和加快其生长速度的作用。
The experiment was conducted to study effect of three kinds of feed on growth,immune enzyme,amino acid content and digestive enzymes activity of Procambarus clarkii for two months.The results showed that the Procambarus clarkii＇s SOD,CAT activity of biological feed was higher than other groups（P0.05）,while ACP,LSZ have no significant difference（P0.05）.Three feed has little influence on the composition and content of amino acid in Procambarus clarkii.The composition and content of essential amino acid and the ratio of the total amino acid are not due to the different feed.In addition,biological feed has a little influence on the growth of Procambarus clarkii,the weight gain rate was higher than the other feed＇s.At the same time,trypsin and amylase activity were higher than ordinary feed＇s,and trypsin activity was significantly different from ordinary feed＇s（P0.05）.Therefore biological feed can enhance the Procambarus clarkii＇s immunity,improve the viability and accelerate its growth.
出处
《上海海洋大学学报》
CAS
CSCD
北大核心
2012年第6期1011-1016,共6页
Journal of Shanghai Ocean University
基金
公益性行业(农业)科研专项(201003070)
关键词
克氏原螯虾
生物饲料
免疫酶
消化酶
氨基酸
Procambarus clarkii
biological feed
enzyme immunoassay
digestive enzyme
amino acid
