Bigmouth Buffalo Fingerling to Market Growth Performance in Ponds in Harbin on a Soymeal-Based Feed
Region: Northeast AsiaDownload
A 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.