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中国农学通报

中国农学通报 ›› 2009, Vol. 25 ›› Issue (8): 277-281.

所属专题： 生物技术； 畜牧兽医

• 水产 渔业 • 上一篇    下一篇

非淀粉多糖酶对牙鲆生长和饲料利用率的影响

陈京华   

  • 修回日期:1900-01-01 出版日期:2009-04-20 发布日期:2009-04-20

Effects of Non-starch Polysaccharide Enzyme on Growth and Feed Utilization of
Japanese flounder (Paralichthys olivaceus)

Chen Jinghua   

  • Revised:1900-01-01 Online:2009-04-20 Published:2009-04-20

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摘要： 摘 要：以初始平均体重(2.04 ± 0.02)g的牙鲆(Paralichthys olivaceus)为实验对象，进行为期70天的摄食生长实验，研究不同添加方式的非淀粉多糖酶对牙鲆生长和饲料利用率的影响。在5000.0 g豆粕中添加25.0 g非淀粉多糖酶，然后用产朊假丝酵母(Candida utilis)进行发酵预处理，得到非淀粉多糖酶预处理豆粕。共制作4种等氮等能饲料，其中以全鱼粉饲料为对照饲料，用豆粕蛋白替代45%的鱼粉蛋白配制成豆粕组饲料；在豆粕组饲料中添加0.2%非淀粉多糖酶配制成非淀粉多糖酶组饲料；用非淀粉多糖酶预处理豆粕蛋白替代45%的鱼粉蛋白配制成非淀粉多糖酶预处理豆粕组饲料。结果表明，用豆粕蛋白替代饲料中45%的鱼粉蛋白，若不添加非淀粉多糖酶则显著降低牙鲆的特定生长率(P<0.01)、饲料效率、蛋白质效率和氮贮积率(P<0.05)；在含豆粕饲料中添加0.2%非淀粉多糖酶显著提高牙鲆的特定生长率(P<0.01)、饲料效率、蛋白质效率、氮和磷贮积率，显著降低氮和磷排放率(P<0.05)；在饲料中添加非淀粉多糖酶预处理豆粕显著提高牙鲆的特定生长率(P<0.01)，但对饲料效率、蛋白质效率无显著的影响(P>0.05)。

关键词: 农村纠纷, 农村纠纷, 农民, 理性选择

Abstract: Abstract: A study was conducted to evaluate the effects of non-starch polysaccharide (NSP) enzyme on growth and feed utilization of Japanese flounder (Paralichthys olivaceus). The NSP-enzyme pretreated soybean meal (SBM) was obtained by fermentation with Candida utilis. Four isonitrogenous and isocaloric diets were formulated. The control diet contained 68.0% fish meal (FM) as the main protein source, whereas 45% of FM protein was replaced by SBM protein in the SBM diets with 0 and 0.2% NSP-enzyme. The NSP-enzyme pretreated SBM diet was formulated in which NSP-enzyme pretreated SBM protein replaced 45% of FM protein. At the end of the feeding trial, the specific growth rate (SGR), feed efficiency ratio (FER), protein efficiency ratio (PER) and nitrogen retention of fish fed the SBM diet without NSP-enzyme were significantly lower than those in control (P<0.05). Comparing with the SBM diet without NSP-enzyme, the fish fed the SBM diet supplemented NSP-enzyme showed significantly higher SGR (P<0.01), FER, PER, nitrogen and phosphorus retention (P<0.05), and significantly lower nitrogen and phosphorus load (P<0.05). The SGR of fish fed NSP-enzyme pretreated SBM diet was significantly higher than that of the SBM diet without NSP-enzyme (P<0.01), however FER and PER were not significantly different from other treatments (P>0.05).