不同开口饵料对四川裂腹鱼仔鱼生长和成活率的影响  

Effects of initial feeding on the growth and survival of Schizothorax kozlovi Nikolsky larvae

作　　者：吴兴兵[1] 杨德国[1] 朱永久[1] 何勇凤[1] 詹会祥 郭威[1] 陈永柏[3] 

机构地区：[1]中国水产科学研究院长江水产研究所,农业部淡水生物多样性保护重点实验室,武汉430223 [2]毕节市水产技术推广站,贵州毕节551700 [3]中国长江三峡集团公司,北京100038

出　　处：《淡水渔业》2014年第6期9-12,23,共5页Freshwater Fisheries

基　　金：中国长江三峡集团公司经费项目(0799521);公益性行业(农业)科研专项项目(No.201003055)

摘　　要：采用丰年虫、冰冻轮虫、水蚯蚓、人工配合饲料4种开口饵料投喂四川裂腹鱼(Schizothorax kozlovi Nikolsky)仔鱼30 d,研究其对四川裂腹鱼仔鱼生长和成活率的影响。结果显示:投喂水蚯蚓和丰年虫能保证四川裂腹鱼仔鱼具有较快的生长速度和较高的成活率。而人工配合饲料组生长速度明显低于其他组,且成活率最低。结果表明,4种开口饵料中,丰年虫是四川裂腹鱼仔鱼最适宜的开口饵料。Schizothorax kozlovi Nikolsky larvae were raised with Tubifex sp. fairy shrimp,frozened rotifer and artificial commercial diet for 30 days to study the effects of the four different feeding diets on the growth and survival of the larvae.The results showed that the larvae fed with Tubifex sp. and fairy shrimp had significant higher survival rates than those fed with the artificial commercial group. The larvae fed with Tubifex sp. had the highest growth rate,while those fed with artificial commercial diet had the lowest efficiency on the growth rate and survival rate. The results indicated that fairy shrimp was the best initial feeding diet for S. kozlovi Nikolsky larvae.

关 键 词：四川裂腹鱼(Schizothorax kozlovi Nikolsky) 仔鱼 开口饵料 生长 

分 类 号：S962.2[农业科学—水产养殖]