密养能增产,但要有一定的限度,在这个限度内,放的越密产量越高,这是合理密养;如果超出这个限度,不但不能增产,还会造成损失。放养的合理密度,要看下面几个条件来决定。 1.看池塘条件。面积相同的池塘,水深适中(2—2.5米)的比水浅的放养密度可以稍大些;水质良好、加注新水又很方便的池塘,放养密度可以比死水池大些。 Tightness can increase production, but there must be a certain limit. Within this limit, the more dense the yield is, the more intensive it is. If it exceeds this limit, it will not only increase production but also cause losses. The reasonable stocking density, depends on the following conditions to decide. 1. Look at the pond conditions. Ponds with the same area have moderate water depths (2-2.5 m), which may be slightly larger than water stocking densities. Ponds with good water quality and fresh water replenishment may be stocked more densely than dead ones.