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首页> 外文期刊>North American Journal of Aquaculture >Effectiveness of the minimally invasive surgical technique (MIST) for removal of ovulated eggs from first-time and second-time MIST-Spawned paddlefish
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Effectiveness of the minimally invasive surgical technique (MIST) for removal of ovulated eggs from first-time and second-time MIST-Spawned paddlefish

机译:微创外科手术技术(MIST)去除初次和二次MIST产的pad鱼排卵卵的功效

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摘要

A minimally invasive surgical technique (MIST) for the removal of ovulated eggs from paddlefish Polyodon spathula was tested on broodstock that had been previously spawned using MIST to determine whether repeat spawning affected fecundity or hatching rate compared with broodstock than had not previously been induced to spawn. There were no significant differences in the number of eggs removed or in the hatching rate between first- and second-time MIST spawners. The oviducts from second-time MIST spawners appeared normal and had no scarring or blockage. The MIST approach is efficient, practical, and less stressful to broodstock during artificial propagation than other reported egg collection procedures.
机译:在先前使用MIST产卵的亲鱼上测试了一种微创外科手术技术(MIST),该蛋白用于从鳞茎鱼Polyodon spathula中去除排卵卵,以确定与亲本相比,重复产卵是否会影响亲代繁殖力或孵化率。第一次和第二次MIST产卵的卵数或孵化率没有显着差异。第二次MIST产卵的输卵管看起来正常,没有疤痕或阻塞。与其他报道的卵收集程序相比,MIST方法有效,实用且在人工繁殖期间对亲鱼的压力较小。

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