By setting up an electrically powered water wheel to augment the dissolved oxygen, the farmers are able to cultivate 5,000 milkfish per hectare, twice previous levels, and earn many more millions of dollars a year.
他耗資新台幣六十多萬元，在廿多公頃的魚塭中裝設水車，結果池魚不但沒有浮頭現象，而且生長迅速，養殖密度由每公頃三千尾增加到五千尾，每年可以淨賺數百萬元，收益比往年增加一倍以上；而且每天晚上只要把水車發動，就可以一覺到天明，也不再需要雇工守夜了。