一、罗非鱼(一)保温技术措施1.在池塘北面搭建用尼龙薄膜或稻草覆盖的0.3m～0.5m的挡风棚,阻挡北风直接吹到池塘表面,减缓池水交替作用,从而减慢池水降温。2.面积较小的池塘或用于亲本、鱼种培育的池塘,可采用全池覆盖塑料大棚方法(图1)。池中放置增氧机,大棚内温度过低时可在棚内 First, tilapia (a) thermal insulation technical measures 1. In the north of the pond to build with nylon film or straw covered 0.3m ~ 0.5m shelter, blocking the north wind blowing directly to the pond surface, reducing the pool of alternating effect, thus reducing Slow pool water cooling. 2. Small ponds or ponds for parental and fingerling cultivation should be covered with plastic greenhouses (Figure 1). Placed in the pool aerator, greenhouse temperature can be too low in the shed