论文部分内容阅读
在鱼池中养殖尼罗罗非鱼,常因再繁殖而产生大量的当龄鱼,成为影响生产的不利因素。通过以往的大量研究工作得知,高密度养殖及靠流水来阻止亲鱼筑巢的活动都能限制养殖中的再繁殖。因而认为高密度的流水养殖是限制再繁殖的有效方法。可是流水养鱼用水必须有充分的保证,这就使筑池受到条件的限制。但是若能在一般的养鱼池或蓄水池中再放置一个小型的养
Farmed Nile tilapia in fish ponds, often because of reproduction and produce a large number of fish at the same time, become a negative impact on production. Based on a large amount of research done in the past, it is known that high-density farming and activities that rely on running water to prevent broodstock from nesting can limit the re-breeding in breeding. Therefore, it is considered that high-density aquaculture is an effective way to limit re-breeding. However, water fish water must be fully guaranteed, which makes Tsukiji conditions are limited. However, if in the general aquarium or reservoir and then placed a small raise