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在生产中,不论是采取自然孵化,还是实行人工孵化,由于多种因素,稚甲的出壳时间常会先后不一,给稚甲的饲养与管理带来许多麻烦。这里介绍一种控制稚甲整齐出壳的技术——浸水刺激出壳法。 这项技术的具体操作要领是,不论是自然孵化,还是人工孵化,都应准确掌握甲鱼卵孵化的时间与温度,当孵化时间达到或者接近稚甲孵化所需积温时(此时卵壳上的黑色斑点会逐渐消失),可将该批甲鱼卵轻轻取出,放入盆中,然后将温度在20～30℃的清水慢慢加入盆中,浸没全部甲鱼卵。在水的刺激作用下,加快了稚甲出壳的速度,一般约10分钟的时间里,就会有大批稚甲破壳而出,10分钟后仍未出壳的,应取出继续孵化。采用这一措施出壳的稚甲,部分会出现卵黄囊没有完全吸收,或羊膜没有脱落等情况,只需留在盆中暂养一天,其卵黄囊即可吸收完毕,羊膜也会自行脱掉,此后便可转入到稚甲培育池中饲养。
In production, either natural hatching or manual hatching, due to a variety of factors, often a child of shellfish cover time and again, to the breeding and management of a child a lot of trouble. Here’s a technique to control the neat kihome out of the shell - immersion to stimulate the shell method. The specific operating essentials of this technique are that the hatching time and temperature of turtle eggs should be accurately grasped whether it is natural hatching or artificial hatching. When hatching time reaches or is close to the accumulated temperature needed for hatching of naive chickens Black spots will gradually disappear), the batch of turtle eggs can be gently removed, into the basin, and then the temperature at 20 ~ 30 ℃ water slowly into the basin, immersion all the turtle eggs. Under the stimulating effect of water, the speed of excrement is accelerated. Generally, in a period of about 10 minutes, there will be a large number of excrement breaking out of the shell. After 10 minutes, the excrement will not be released and hatching should be continued. The use of this measure to hatch Jiajia, part of the yolk sac will not be fully absorbed, or amniotic membrane did not fall off, etc., just stay in the pot for one day, the yolk sac can be absorbed, the amniotic membrane will take off , After which it can be transferred into a pool of breeding akindia breeding.