
Bigmouth Buffalo 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 Harbin West Suburb Fish Farm in Heilongjiang Province to demonstrate the fingerling to market growth performance of bigmouth buffalo fish using the ASA 80:20 pond production model and a soymeal-based growout feed. Fish were stocked in two, 7-mu ponds at densities of 800 bigmouth buffalo and 100 silver carp fingerlings per mu. Bigmouth buffalo grew from 60 g to an average weight of 464 g per fish in 120 days of feeding. Gross production averaged 337 kg/mu for bigmouth buffalo and 82 kg/mu for silver carp. Average survival rates for bigmouth buffalo and silver carp were 90.7% and 93.5%, respectively. Bigmouth buffalo FCR with the all-plant protein, soymeal-based feed was 0.99:1. Average net economic return was RMB 2,514/mu per mu at market prices of RMB 16.2/kg for bigmouth buffalo and RMB 2.4/kg for silver carp. Average ROI per mu was 80.2%. Results of the feeding demonstration showed that bigmouth buffalo 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. Bigmouth buffalo appeared to have been underfed in the trial, and it is recommended to increase the feeding rate if larger fish are required for the market.