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Effects of chitosan on growth and digestive emzyme in allogynogenetic silver crucian carp
Author(s): CHEN Yong, ZHOU Hong-qi, LENG Xing-jun, ZHONG Guo-fang
Pages: 440-
445
Year: 2006
Issue:
3
Journal: JOURNAL OF FISHERY SCIENCES OF CHINA
Keyword: 异育银鲫; 壳聚糖; 生长; 消化酶; 蛋白质效率;
Abstract: 以基础饲料为对照,以在基础饲料中分别添加0.125%、0.25%、0.5%、0.75%、1%的壳聚糖为实验饲料,饲养异育银鲫(Carassiusauratusgibelio)60 d,与对照组比较生长、成活、饲料系数、蛋白质效率、鱼体营养成分、白肌RNA/DNA比值及肝胰脏、肠道的蛋白酶、淀粉酶活性.结果表明,本次实验所添加壳聚糖对异育银鲫的成活率、鱼体营养成分和白肌的RNA/DNA比值均无显著影响(P>0.05).添加0.5%、0.75%和1%壳聚糖可以显著提高异育银鲫的特定生长率和蛋白质效率,显著降低异育银鲫的饲料系数.添加0.5%壳聚糖可以显著提高异育银鲫肠道的淀粉酶活性;添加0.75%和1%壳聚糖可以显著提高肠道和肝胰脏的蛋白酶活性和肠道的淀粉酶活性.[中国水产科学,2006,13(3):440-445]
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