研究表明，饲养池的大小直接影响豚的行为；
Thebehaviour of the dolphins in captivity is directly affected by the size of the pool.
饲养蝎子的方法，包括池养、缸养、盆养及瓶养等。
The methods included feeding in pond, vat, basin and jar ete.
介绍池塘养蟹必须掌握的蟹池条件、蟹种放养、饲养管理、病害防治等主要技术环节。
This article deals with the technical links such as the required conditions of ponds, the raising of crab breed, the management of pond-farming and the diseases prevention, etc.
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