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近年来,甲鱼养殖需要的苗种,几乎都是通过人工孵化得到的。甲鱼从受精卵到孵化出苗,需要积温36000C小时,若自然条件下,约需60天左右。如果把孵化室温保持最佳温度(控制在33 C),消除昼夜温差,使胚胎健康发展,出苗时间只需45天左右。这样不但缩短了甲鱼苗孵化时间,而且还提高了孵化率。 现阶段人工孵化房一般采用的自动控温系统,以电热器、温度计、自动控温仪表和接触器组成,由于接触器存在触头,临近控制指定温度时,动作频繁,这样触点易损坏,使用寿命短,再加上有噪声、误差大等不
In recent years, the need for turtle breeding seedlings, almost all obtained by artificial hatching. Turtle hatching from the fertilized eggs to seedlings, need temperature 36000C hours, if the natural conditions, about 60 days. If the incubation temperature to maintain the best temperature (controlled at 33 C), eliminating the temperature difference between day and night, the healthy development of embryos, the emergence time of only 45 days. This will not only shorten the hatching time of the fish, but also improve the hatching rate. At this stage artificial hatching room generally used automatic temperature control system to electric heater, thermometer, automatic temperature control instrumentation and contactor, due to contactors exist, near the control of the specified temperature, the frequent moves, so contact is easy to damage, Short life, coupled with noise, such as large error does not