Mirror Carp Fingerling to Market Production in Ponds in Harbin with Soy-Based Feeds
Category: Common Carp
Region: Northeast AsiaDownload
A feeding trial was conducted in Harbin, Heilongjiang Province, to demonstrate fingerling to market growth performance of mirror carp using the ASA 80:20 pond production model and the ASA all- plant protein, soymeal-based growout feed. Harbin is located at approximately 46o north latitude. Fish were stocked in three ponds of size 5.4-mu per pond at a density of 400 mirror carp and 100 silver carp per mu. Mirror carp grew from 149 g to an average weight of 1,073 g per fish in 140 days of feeding. Gross production averaged 365 kg/mu for mirror carp and 62 kg/mu for silver carp. Average survival rates for mirror carp and silver carp were 86% and 81%, respectively. Mirror carp FCR with the soymeal-based feeds averaged 1.24:1. Average net economic return was RMB 487 per mu, for an average return on investment (ROI) of 23.2%. Results of the feeding demonstration showed that mirror carp exhibited good growth performance and FCR with the ASA soymeal-based feed and 80:20 production technology. Mirror carp reached the target market size and had good meat quality, body color and body conformation. The use of extruded, floating feed significantly reduced labor costs, lowered fish FCR, avoided feed waste, improved water quality, and allowed production of healthy and disease-free fish without the use of drugs or chemicals.