黑莓鲈苗种土池生态培育及人工驯食技术研究  

Ecological Breeding of Pomoxis nigromaculatus Larvae in Earth Pond and Bait Domestication of Juvenile

作　　者：钟全福[1] 

机构地区：[1]福建省淡水水产研究所,福州350002

出　　处：《中国农学通报》2017年第14期138-142,共5页Chinese Agricultural Science Bulletin

基　　金：福建省渔业"五新"科技推广项目[闽海渔五新合同(2012)007号]

摘　　要：为探讨黑莓鲈生态育苗技术,采用了仔稚鱼土池生态培育与室内水泥池的育苗方式,进行了黑莓鲈人工育苗试验。结果显示,土池通过肥水培养饵料生物,添加外源饵料生物,放养黑莓鲈仔鱼76.5万尾/hm^2,经过50天的培育,共培育出平均全长3.37 cm的鱼苗31.4万尾,平均成活率为62.36%,仔鱼开口饵料以轮虫、枝角类为主,其体长(L_T)与日龄(T)的回归方程为:L_T=0.006T2+0.251T+2.875(R2=0.995);幼鱼全长30 mm时开始驯食,以水蚯蚓作为驯食先导饵料,配合饲料驯食成功率达99%~100%,平均驯食成活率93.87%。土池生态育苗,水质稳定,饵料生物种群数量丰富,可以提高黑莓鲈育苗成活率,获得稳定的育苗效果。To explore the ecological breeding methods of Pomoxis nigromaculatus, larvae were bred in earth pond and bait domestication of juvenile was adopted in indoor concrete pond. The results showed that when using natural baits cultured in earth ponds by organic fertilizer and adding external biological baits, and the density was 76.5×10^4 larvae/hm^2, we harvested 31.4× 10^4 fry after 50 day＇s cultivation. The average body length of fry was 3.37 cm, and the survival rate was 62.36%. The baits of larvae mainly consisted of rotifer and cladoceran. The regression equation of body length （LT） and daily age （7） was LT=0.006T^20.251 T＋2.875 （R^2= 0.995）. Bait domestication was conducted when body length of juvenile fish was 30 mm. Water earthworm was used as pilot bait. Success rate of bait domestication with compound feed was 99%- 100% and the average survival rate was 93.87% after domestication. Water quality was stable and baits were rich in earth pond, thus ecological breeding in earth pond could improve survival rate of larvae and keep stable breeding efficacy.

关 键 词：黑莓鲈 土池育苗 生长 食性 配合饲料驯食 

分 类 号：S962.2[农业科学—水产养殖]