流水池养殖模式下投喂频率对杂交鲟鱼幼鱼生长性能的影响  

Effect of Feeding Frequency on Growth Performance of Juvenile Hybrid Sturgeon in Flowing Water Cultivation

作　　者：杨星 赵振新 赵凤 赵飞 张美彦 YANG Xing;ZHAO Zhenxin;ZHAO Feng;ZHAO Fei;ZHANG Meiyan(Institute of Fisheries,Guizhou Academy of Agricultural Sciences,Guiyang,Guizhou 550025;Guizhou Special Aquatic Engineering Technology Center,Guiyang,Guizhou 550025,China)

机构地区：[1]贵州省农业科学院水产研究所,贵州贵阳550025 [2]贵州省特种水产工程技术中心,贵州贵阳550025

出　　处：《贵州农业科学》2020年第8期87-89,共3页Guizhou Agricultural Sciences

基　　金：贵州省科技成果转化项目“贵州山区鲟鱼健康高效养殖技术应用示范”[黔科合成果(2019)4313]。

摘　　要：为山区鲟鱼的高效养殖提供参考,在流水池塘养殖模式下,研究不同投喂频率(1次/d、2次/d、3次/d、4次/d和5次/d)对杂交鲟幼鱼生长性能的影响。结果表明:不同投喂频率对流水池养殖模式下杂交鲟幼鱼生长性能的影响显著;高频投喂(4次/d和5次/d)鲟鱼的增重率、特定生长率、脏体比和肥满度均显著高于低频率投喂处理(1次/d、2次/d、3次/d);3次/d和4次/d的饲料效率显著低于其他处理。在流水池养殖模式下,杂交鲟幼鱼日投喂频率以4次/d为宜。In order to provide references for the efficient breeding of sturgeon in mountainous areas,the effects of feeding frequency(1,2,3,4,5 time/d)on growth performance of hybrid sturgeon juveniles were studied in flowing pool culture mode.Results:Different feeding frequency had significant effect on the growth performance of hybrid sturgeon.The weight gain rate,specific growth rate,visceral body ratio and fatness of high frequency feeding groups(F4 and F5)were significantly higher than those of low frequency feeding groups(F1,F2,F3);The feed coefficient of F3 and F4 groups was significantly lower than that of other experimental groups.In conclusion,it was concluded that the optimal feeding frequency of hybrid sturgeon juveniles was 4 times/d under the current pond culture mode.

关 键 词：杂交鲟鱼 流水池养殖 投喂频率 生长性能 

分 类 号：S965.215[农业科学—水产养殖]