Grass Carp Fingerling to Market Growth Performance in Ponds in Harbin on a Soymeal-Based Feed
Category: Aquaculture
Region: Northeast Asia
DownloadA feeding trial was conducted at the Jin Shan Bao Fish Farm in Harbin, Heilongjiang Province, to demonstrate the fingerling to market growth performance of grass carp using the ASA 80:20 pond production model and a soymeal-based growout feed in northeastern China. Harbin is located at 46o north latitude. Fish were stocked in two ponds of approximately 5-mu size at densities of 600 grass carp and 100 silver carp fingerlings per mu. Grass carp grew from 60 g to an average weight of 777 g per fish in 138 days of feeding. Gross production averaged 424 kg/mu for grass carp and 87 kg/mu for silver carp. Average survival rates for grass carp and silver carp were 91% and 98%, respectively. Grass carp FCR with the all-plant protein, soymeal-based feed was 1.54:1. Average net economic return was RMB 896 per mu, for an average return on investment of 36.8%. Results of the feeding demonstration showed that grass carp fed well on the extruded, floating feed, and exhibited good growth performance, FCR, survival and economic return with the ASA soymeal-based feed and 80:20 production technology.