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为了探索温度对玫瑰无须鲃(Puntius conchonius)胚胎发育的影响,将玫瑰无须鲃的受精卵置于不同温度培养容器中进行孵化观察。结果显示,在温度为18～32℃的环境条件下,玫瑰无须鲃的胚胎均能孵化,最适孵化温度范围为24～28℃。如果温度高于32℃或低于18℃时,玫瑰无须鲃的胚胎不能孵出仔鱼。在温度为34℃时,胚胎发育到原肠胚晚期全部死亡,温度为16℃时,胚胎发育停止于神经胚期,孵化时间随温度的升高而缩短,呈幂函数相关。玫瑰无须鲃胚胎发育的生物学零度为12.35℃,有效积温为419.40℃.h。
In order to explore the effect of temperature on the development of Puntius conchonius embryos, different sizes of embryos were placed in different temperature incubators for hatching observation. The results showed that under the environmental conditions of 18 ~ 32 ℃, all the embryos of the rose without hatching could hatch. The optimum incubation temperature ranged from 24 ℃ to 28 ℃. Rare embryos can not hatch larvae at temperatures above 32 ° C or below 18 ° C. At the temperature of 34 ℃, the embryo developed to the late stage of gastrula and died at the temperature of 16 ℃. The embryo development stopped at the neurogenetic stage and the incubation time shortened as the temperature increased. Rose without the embryo development biology zero degrees 12.35 ℃, the effective accumulated temperature of 419.40 ℃ .h.