中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 饲料中添加外源酶对大菱鲆幼鱼生长和饲料利用率的影响 水产科学 2014,33 (11) 674-679
Position: Home > Articles > Effects of Dietary Exogenous Enzymes on Growth and Feed Utilization in Juvenile Turbo t(Scophthalmus maximus) Fisheries Science 2014,33 (11) 674-679

饲料中添加外源酶对大菱鲆幼鱼生长和饲料利用率的影响

作  者：
鲁媛媛;吴立新;姜志强;陈炜;张雪
单  位：
大连海洋大学辽宁省水生生物学重点实验室
关键词：
大菱鲆;植酸酶;非淀粉多糖酶;组合酶;生长;饵料利用率
摘  要：
研究了饵料中添加植酸酶、非淀粉多糖酶及二者的组合酶对大菱鲆幼鱼生长、体成分以及饵料利用率的影响。在水温14.0~18.5℃将144尾初始平均体质量为(20.53±0.10)g的大菱鲆幼鱼随机分成4组,每组3个重复,每个重复放养12尾鱼,分别饲喂基础饵料(对照组)和在每千克基础饵料中添加200mg植酸酶、100mg非淀粉多糖酶、200mg植酸酶+100mg非淀粉多糖酶的组合酶(试验组)。计42d。试验结果表明,与对照组相比,添加外源酶显著提高了大菱鲆幼鱼的特定生长率(P<0.05),且添加组合酶的特定生长率最高,较对照组提高了16.30%;但摄食率、饵料系数、蛋白质效率和成活率均无显著影响(P>0.05)。饵料中添加外源酶对大菱鲆幼鱼的鱼体水分、粗脂肪、灰分和能量无显著影响(P>0.05);但鱼体粗蛋白含量均有增加(P>0.05),且添加非淀粉多糖酶鱼体粗蛋白含量最高(P<0.05)。与对照组比较,添加非淀粉多糖酶和组合酶显著提高大菱鲆幼鱼的干物质、粗蛋白、磷和能量的表观消化率(P<0.05);添加植酸酶显著提高粗蛋白表观消化率(P<0.05),干物质、磷和能量表观消化率较对照组高,但差异不显著(P>0.05)。饵料中添加外源酶显著提高大菱鲆幼鱼氮、磷贮积率,显著降低氮排放率(P<0.05);添加组合酶显著降低磷排放率(P<0.05);饵料中分别添加植酸酶和非淀粉多糖酶未显著降低磷排放率(P>0.05),但有下降趋势。
译  名：
Effects of Dietary Exogenous Enzymes on Growth and Feed Utilization in Juvenile Turbo t(Scophthalmus maximus)
作  者：
LU Yuan-yuan;WU Li-xin;JIANG Zhi-qiang;CHEN Wei;ZHANG Xue;Key Laboratory of Hydrobiology in Liaoning Province,Dalian Ocean University;
关键词：
juvenile turbot(Scophthalmus maximus);;phytase;;non-starch polysaccharide enzyme;;mixture enzyme;;growth
摘  要：
A feeding trial was conducted to investigate the effects of dietary exogenous enzymes(phytase,non-starch polysaccharide enzymes and the mixture of the two enzymes)on growth,body composition,food digestibility and utilization in juvenile turbot(Scophthalmus maximus).A total of 144 juvenile turbot with an average body weight of(20.53±0.10)g were randomly divided into 4groups and fed a basal diet(as a control group),and the basal diet supplemented with phytase at a rate of 200mg/kg diet,non-starch polysaccharide enzymes at a rate of 100mg/kg diet and the mixture of the two enzymes for 42 days at water temperature of 14.0—18.5℃ with triplication.Results showed that the exogenous enzymes supplementation led to significant improvement of specific growth rate compared to the control group(P<0.05),the best growth(increased by 16.30%)in the fish fed the diet containing mixture enzymes,without significant differences in food intake,food conversion ratio,protein efficiency ratio and survival rate(P>0.05).The moisture,and levels of crude fat,ash and energy of the juvenile turbot were not affected significantly by the exogenous enzyme supplementation(P>0.05).The crude protein level,however,was increased(P>0.05),the maximum in the fish fed the diet containing non-starch polysaccharide enzymes(P<0.05).There were significantly higher apparent digestibility of feed dry matter,crude protein,phosphorus and energy in the juveniles fed the diet containing non-starch polysaccharide enzymes and mixture enzymes than in the juveniles in the control group(P<0.05).The fish fed the diet containing phytase showed significantly higher apparent digestibility of crude protein(P<0.05),and higher apparent digestibility of feed dry matter,phosphorus and energy without significant differences(P>0.05).Exogenous enzyme supplementation resulted in significant improvement of retention of nitrogen and phosphorus(P<0.05),and in significant decrease in nitrogen load(P<0.05).Phosphorus load was not affected significantly by dietary phytase and non-starch polysaccharide enzymes(P>0.05),even though the phosphorus load showed the downward trend.

相似文章

导出引用
计量
文章访问数: 5
HTML全文浏览量: 0
PDF下载量: 1

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46