彩虹鲷海水驯养生产性试验  

Productive experiment of saltwater domestication and cultivationof red tilapia( Oreochromis mossambicus×O. niloticus )

作　　者：黄雨华 鲍佳伟 黄元明 HUANG Yuhua;BAO Jiawei;HUANG Yuanming(Zhejiang Hongye Seafood Co.Ltd.,Taizhou 317013,China)

机构地区：[1]浙江宏野海产品有限公司,浙江台州317013

出　　处：《河北渔业》2024年第8期37-39,共3页

摘　　要：为测试彩虹鲷(Oreochromis mossambicus×O.niloticus)在浙江沿海水域养殖的可行性,2023年进行了海水驯养试验。先期经36 d咸化及大规格夏花培育,鱼体规格从原初的平均体长2 cm、体质量0.167 g/尾增至平均体长4 cm、体质量2.5 g/尾,尾均分别增长了1倍(2 cm)和14倍(2.33 g);经移养计数,获大规格夏花30 168尾,咸化及培育成活率达97.95%。在此后为期154 d的海水养成试验中,上述大规格夏花增长至体长25.2 cm、体质量455 g/尾,分别增长了5.3倍和181倍,日增长和日增重平均为1.38 mm和2.94 g;养成存活率96.8%,共产鱼13 287.2 kg,饲料系数0.98。结果显示,彩虹鲷经咸化后适合本地海水养殖,且生长快、病害少、产量高,具有较高的食用价值和观赏价值。In 2023,a seawater acclimation test was conducted to evaluate the feasibility of farming red tilapia(Oreochromis mossambicus×O.niloticus)in the coastal waters of Zhejiang Province.During an initial 36-day salinization and large fry cultivation period,the average body length of the fish increased from 2 cm to 4 cm,and body mass from 0.167 to 2.5 g/ind.,showing a doubling in body length and a 14-fold increase in body weight.Following the relocation and counts,30168 large fry were obtained,with a salinization and cultivation survival rate of 97.95%.During the subsequent 154-day seawater rearing trial,these large fry grew to an average body length of 25.2 cm and a body mass of 455 g/ind.,achieving growth rates of 5.3 times in length and 181 times in weight.The daily growth averages were 1.38 mm and 2.94 g.The survival rate during rearing was 96.8%,resulting in a total yield of 13287.2 kg and a feed conversion ratio of 0.98.These results indicated that red tilapia,after salinization,is suitable for local seawater farming,exhibiting rapid growth,low disease incidence,high yield,and significant edible and ornamental value.

关 键 词：彩虹鲷(Oreochromis mossambicus×O.niloticus) 咸化 海水 养成 

分 类 号：S965.125[农业科学—水产养殖]