摘要
在闽南地区 4月底 ,试验雌斑鳢体重为 (375 .8± 118.6 0 )g ,性腺发育已进入Ⅳ期 ,其卵巢重为 (2 0 .4± 9.4 9)g、成熟系数为 (5 .2 3± 1.17) %、绝对怀卵量为 (116 4 3.33± 6 2 36 .98)粒、相对怀卵量为 (2 9.0 7± 7.37)粒 ,成熟卵粒卵径 1.4～ 1.5mm .在水温2 4℃～ 2 7℃条件下 ,采用LRH -A3+HCG二次注射催熟催产 ,效应时间 2 2～ 6 8h ,自然产卵或人工授精 ,获卵量 2 90 0 0粒 ,受精率 32 %～ 98% ,静水或充气孵化 ,孵化时间 38～ 4 2h ,孵化率 0 .4 %～ 13.18% ,孵出仔鱼 2 4 5
The south area of Fujian province during the late period of April,when the test female fishs weight is (375.8±118.60)g.The gonad could develop to stage Ⅳ.The egg nest weight is ( 20.4 ±9.49)g.The maturation coefficient is(5.23±1.17)%.The absolute fecundity is (11 643.33 ±6 236.98)g.The relative fecundity is( 29.07±7.37)g.The diameter of maturation egg is 1.4～1.5mm.Under the water temperature is 24～ 27 ℃ ,using two-injecions of LRH-A 3+HCG to induce maturation and spawning,the effective time of 22～ 68 h .Natural ovipisition or artifical fertilization,obtain 29 000 eggs.The rates of fertilization are 32 %～ 98 % .Under the condition of still water or delivering gas into water.When the hatching time of 38～42 h,and the hatchability is 0.4%～13.18%,obtain yolklory,2 458.
出处
《集美大学学报（自然科学版）》
CAS
北大核心
2001年第3期204-209,共6页
Journal of Jimei University：Natural Science
