摘要
红鳍侑鲷(♀,40尾)×千年笛鲷(♂,45尾)杂交,得到受精卵2.2kg,浮卵率为78.57%,受精卵的孵化率为90.51%,共得到健康仔鱼349.2万尾;千年笛鲷(♀,30尾)×红鳍笛鲷(♂,28尾)的杂交,不成功。在水温27.5~33.5℃、盐度27.5~32.5、pH7.6~8.3、溶解氧4~6mg/L条件下,杂交笛鲷仔鱼经过32d的培育,用3个育苗池塘(面积共0.933hm^2)培育出平均全长36.8mm的幼鱼44.4万尾,单位面积培育鱼种47.57万尾/hm^2,育苗成活率为8.95%。
Snapper Lutjanus erythropterus (40♀) was hybridized with emperor snapper L. sebae (45 ♂ ) and 2. 2 kg fertilized eggs was obtained with the floated egg rate of 78. 57%. The hatching rate was 90. 51% and 3 492 000 health larvae were survival. But L. sebae (♀)× L. erythropterus (♂) hybridization was failed. The culture temperature was maintained between 27.5 and 33. 5℃, the salinity varied from 27.5 to 32.5, the range of pH value was 7. 6-8. 3, and the dissolved oxygen level fluctuated between 4 mg/L and 6 mg/L. Some 444 000 hybrid juveniles with total length 36.8mm were obtained in three ponds during 32 day rearing period at a rate of 475 700 ind. /hm^2, with survival rate of 8. 95%.
出处
《水产科学》
CAS
北大核心
2006年第1期1-4,共4页
Fisheries Science
关键词
红鳍笛鲷
千年笛鲷
亲鱼培育
池塘育苗
杂交
Lutjanus erythopterus
emperor snapper L.sebae
broodstock cultivation
fry rearing in seawater pond
hybrid