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1977年我们试验网箱培育鲢鳙大鱼种表明,鳙占进箱鱼种的65％,比鲢还提前8天长到4寸规格,且肥满度、成活率较高。(《淡水渔业》1978(1),4—7页)1978年继续鲢鳙鱼种搭配比例试验,试找出白莲河水库利用天然浮游生物在网箱中培育鲢鳙大鱼种适宜的搭配比例;探讨浮游生物种群、数量与鲢鳙食性的关系;从成长度、肥满系数、成活率以及出箱鱼种规格的频数分配等参数衡量鲢鳙配比的适宜程度。
In 1977, we experimented with large cage species of silver carp and bighead carp to breed, indicating that 65% of the fish species in the cage accounted for 4-inch specifications ahead of the silver carp in 8 days, and the fatness and survival rate were higher. (Freshwater Fisheries, 1978 (1), pp. 4-7) In 1978, we continued the trial of silver carp and bighead carp species to find out the appropriate proportion of silver carp and large carp species cultivated by natural plankton in the cage The relationship between the population of plankton and the feeding habits of silver carp and bighead carp was explored. The fitness of silver carp and big carp was measured from the factors such as growth rate, fatness coefficient, survival rate and the frequency distribution of stocking size.