Better freshwater fish-farming: further improvement
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This booklet continues the lessons taught on how to begin fish farming and aquaculture in <i>Freshwater fish-farming: how to begin</i>no. 27; in <i>Better freshwater fish-farming: the pond</i> no. 29; and in </i>Better freshwater fish-farming: the fish</i>. This booklet teaches the fish farmer how to build more and bigger ponds, how to improve water supply, how to build new and better kinds of inlets and outlets, how to improve fertilization of the fish, how to grow fish all year round, how to harvest fish better and how to manage the fish pond as an integral part of other farming activities.