摘要
通过外源甲状腺素（T4）及可的松浸泡卵和仔鱼，结果表明：外源甲状腺素（T4）和可的松对牙好卵的孵化率和初孵仔鱼的体长没有显著影响；外源甲状腺素（T4）对0～10日龄的仔鱼生长有显著影响，和对照组（0）相比，0．05×10-6和0．1×10－6的影响显著，外源可的松对0～10日龄的生长不显著；外源甲状腺素（T4）和可的松对11～24日龄仔鱼的生长不显著，外源甲状腺素（T4）对11～24日龄的仔鱼变态有显著影响，和对照组（0）相比，0．05×10－6和0．1×10-6的影响显著；外源可的松对11～24日龄的变态影响不显著。
The effects of thyroxine (T4) and cortisone on the hatch, growth and metamorphosis of Paralichthys olivaceus during early development stage were investigated.Administration of T4 to egg by immersion at a dosage of 0. 0×10-6 or 0. 1×10-6 resulted in no significant increase in both hatching rate and the standard length of new-hatched larvae compared to the control. There were a significant increase in growth rate during 0- 10 age in days and in metamorphic rate during 11 - 24 age in days among T4 concentration of 0, 0. 05×10-6 and and 0. 1 ×10-6 , but no significant increase in growth rate during 11 - 24 age in days.Adminstration of cortisone to egg, 0- 10 and 11 - 24 age in days larvae had no significant effecting on the hatching rate, standard length of new-hatched larvae, growth rate, or metamorphic rate among 0, 0. 1× 10-6 , 0- 3 ×10 -6 and 0. 5×10-6.
出处
《上海水产大学学报》
CSCD
1999年第3期242-246,共5页
Journal of Shanghai Fisheries University
关键词
外源
甲状腺素
可的松
牙鲆
早期发育
exogenous
thyroxine (T_4)
cortisone
Paralichthys olivaceus
early development stage
