复合中草药饲料添加剂对大菱鲆生长的影响

摘要

为研究复合中草药饲料添加剂对大菱鲆促生长的影响。将白术、茯苓、大黄、甘草和山楂等15种中草药按一定比例配制成A、B两种中草药制剂，在水温15．1～16．3℃下，分别按照0‰、5‰、10‰和15‰添加量投喂初始平均体质量为（112．3±16．7）g的大菱鲆（Scophthalmus maximus），寻找其促生长作用和适宜添加量。60 d的饲养结果表明：中草药A 5‰添加量对大菱鲆促生长效果优于中草药A 10‰、15‰添加量和中草药B 5‰、10‰和15‰添加量；中草药A 5‰组持续投喂20 d、40 d、60 d，增重率比对照组高4．4％、-5．8％、-12．7％，饲料系数降低7．4％、4．4％、-10．1％，蛋白质效率提高5．1％、4．4％、-11．1％。中草药A 5‰添加量组对大菱鲆促生长效果较优，但随着投喂时间的延长，促生长效果逐渐减弱而低于对照组。%To study compound Chinese herbal medicine feed additives on promoting Scophthalmus maximus growth, A and B two kinds Chinese herbal medicine preparation are formulated by using atractylodes , poria, rhubarb, licorice, hawthorn and other 15 kinds of Chinese herbs .In the experiment, to explore their role in promoting Scophthalmus maximus growth and appropriate dosage , 0 ‰, 5 ‰, 10 ‰ and 15 ‰ dosage feed additives were respectively fed to Scophthalmus maximus(Linnaeus)with initial average body mass (112.3 ± 16.7 )g under water temperature 15.1-16.3℃.After 60 days feeding, the effect of Herbs A 5‰volume on promoting Scophthalmus maximus( Linnaeus ) growth was better than herbs A 10‰, herbs A 15‰and herbal B 5 ‰, 10 ‰ and 15 ‰ dosage.Herbal A 5 ‰ group continued feeding for 20 days, 40 days, 60 days, weight gain rate was higher than the control group by 4 .4%, -5 .8%, -12 .7%, feed conversion ratio decreased by 7.4%, 4.4%,-10.1%, protein efficiency increased by 5.1%, 4.4%,-11.1%.Chinese herbal medicine preparation A 5 ‰ dosage is excellent in promoting Scophthalmus maximus ( Linnaeus ) growth , as the feeding time prolong , the growth-promoting effect gradually weakens and even become worse than the control group .