论文部分内容阅读
在天津地区淡水池塘中,大多数养殖户采取春放、秋捕的传统养殖模式。由于集中放养,集中出塘,造成了市场饱和,市场售价逐年降低,养殖效益明显下降。为了提高水产养殖效益,改进养殖模式,推动武清区水产养殖业的健康发展,笔者于2010年7月至2011年7月进行了草鱼夏花鱼种直接养成商品鱼技术试验,取得了明显效果。现将试验情况总结如下。1材料与方法1.1池塘条件试验池塘位于天津市武清区上马台镇,面积为20亩,池底淤泥20cm厚,池塘水深1.8m
In Tianjin freshwater ponds, most farmers adopt the traditional breeding mode of spring release and autumn catching. As a result of intensive stocking and pooling, the market saturation has been caused, the market price has been decreasing year by year, and the breeding efficiency has obviously dropped. In order to improve the efficiency of aquaculture, improve the breeding mode and promote the healthy development of aquaculture in Wuqing District, the author conducted a pilot experiment on the cultivation of summer grass carp grass species from July 2010 to July 2011, and achieved obvious results effect. Now the test situation is summarized as follows. 1 Materials and methods 1.1 Pond condition test Pond is located in Shangmaitai Wuqing District, Tianjin, an area of 20 acres, the bottom of the sludge 20cm thick, the pond depth of 1.8m