管角螺规模化人工育苗技术研究  

Technique Probe: Artificial Hatching for Seawater Snail Hemifusus tuba at Industrialized Scale

作　　者：阮鹏[1] 蒋霞敏[1] 彭瑞冰[1] 黎盛 

机构地区：[1]宁波大学海洋学院,浙江宁波315211 [2]象山来发水产育苗场,宁波象山315700

出　　处：《宁波大学学报（理工版）》2015年第4期11-15,共5页Journal of Ningbo University：Natural Science and Engineering Edition

基　　金：浙江省重大科技专项(2009C12076);浙江省大学生科技成果推广项目(013450932)

摘　　要：探究管角螺工厂化人工繁育技术,于2014年3~8月在象山来发水产育苗场,采用单因子试验方法进行了不同孵化密度（1、1.5、2、2.5、3 kg？筐-1）、稚螺不同培养密度（2.5×10^3、3.75×10^3、5.0×10^3、6.25×10^3 ind·m^-2）、不同开口饵料（底栖硅藻、缢蛏肉、底栖硅藻＋缢蛏肉、鱼肉）和水泥池规模化人工育苗技术研究.结果表明：当壳高小于1 cm时,稚螺培养密度以3.75×10^3 ind·m^-2为宜,大于1 cm时,其培养密度控制在大约1×10^3 ind·m^-2;开口饵料以底栖硅藻＋缢蛏为佳.实验共收集卵荚650 kg,获初孵稚螺（平均质量（0.003±0.001）g,壳高在0.4~0.5 cm）238.10×10^4 ind,在水温25~30℃和盐度25~30的条件下,培养15~16 d,育出平均壳高1.1~1.2 cm幼螺197.50×10^4ind,育成率在79.86%~88.50%,平均育成率达83.34%.To rehabilitate the natural resources of Hemifusus tuba, artificial breeding technique of Hemifusus tuba at industrialized scale was investigated from March to August in 2014, in Xiangshan Laifa aquatic hatchery farm. Single factor test was performed to test the effects of influencing factors on the growth and survival rate of the snail, including incubation density （1, 1.5, 2, 2.5, 3 kg＇frame-1）, juvenile culture density （2.5×10^3、3.75×10^3、5.0×10^3、6.25×10^3 ind·m^-2） and weaning food （benthic diatoms, meat of Sinonovacula constrzcta, benthic diatoms and meat of Sinonovacula constrzcta, trash fish）. The results show that the culture density for juvenile snails less than 1 cm and larger than 1 cm is 3.75×10^3 and lxl03 ind·m^2, respectively. The best weaning food is the combination of benthic diatoms and meat of Sinonovacula constrzcta. A total of 650 kg egg pod and 238.10×10^4 juvenile snails （the average weight of （0.003＋0.001）g, shell height in 0.4-0.5 cm） are collected. In all, 197.50×10^4 individuals survived after 15-16 days of culture at the temperature of 25-30℃ and the salinity of 25-30. The survival rate is 79.86%-88.50%, with an average of 83.34%. This study is expected to provide helpful reference to the extensive aquaculture and rehabilitation of natural resources of Hemifusus tuba.

关 键 词：管角螺 规模化 育苗 

分 类 号：S968[农业科学—水产养殖]