不同雌雄配比对中华鳖人工繁殖受精率的影响

Effect of Different Female/Male Ratios on Fecundation Rate of Pelodiscus sinensis in Artificial Propagation

研究了中华（Pelodiscussinensis）人工繁殖不同雌雄配比的受精率差异，结果显示：在放养密度3750~4500ks／hm2，亲鳖规格♀1．5kg／只、♂2．0kg／只条件下，雌雄配比可达8：1。在不增加水体面积和投资情况下，雌雄比8：1与5：1相比多产受精卵13500～18000枚／hm2，可增加纯利润27000～30000元／hm2。

The paper studied the effect of different female/male ratios on the fecundation rate of Chinese soft - shelled turtle Pelodiscus sinensis in artificial propagation, the main results were as follows： the ratio of male to female could be up to 8：1 under the conditions of stocking density 3750 ~ 4500 kg/hm2, female parent 1.5 kg/head and male parent 2.0 kg/head. Under no increasing water body area and investment, the treatment which the ratio of male to female was 8：1 could obtain 13500 ~ 18000/hm2 more spermatovums and 27000 ~ 30000 yuan/hm2 more pure profit than the treatment which the ratio of male to female was 5： 1.