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本文通过对不同环境条件、催产物条件下草鱼的人工繁殖及苗种生长性能进行比较试验,旨在探索提高草鱼孵化率及苗种成活率的有关因素。一、试验条件和方法1.试验时间从2004年11月至2005年7月。2.试验前准备(1)池塘条件:试验池两个,面积各为2亩,池塘编号为1#、2#,池深2.5米,水深2
In this paper, we compared the artificial propagation and growth performance of grass carp under different environmental conditions and the conditions of the products of oxytocin to explore the factors that can improve the hatching rate and survival rate of grass carp. First, the test conditions and methods 1. Test time from November 2004 to July 2005. 2. Pre-test preparation (1) pond conditions: two test ponds, each with an area of 2 acres, the pond number 1 #, 2 #, pool depth of 2.5 meters, depth 2