Grass Carp Production with Soy-Maximized Feed

Reports & Whitepapers

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Category: Aquaculture

Region: Northeast Asia


A feeding demonstration was conducted in Shenyang, Liaoning Province, to demonstrate fingerling to market growth performance of grass carp using the ASA 80:20 pond production model and ASA soy-maximized grass carp feed. Fish were stocked in three, 2.4-mu (0.16-ha) ponds at a density of 500 grass carp and 100 silver carp per mu (7,500 grass carp and 1,500 silver carp per ha). Grass carp grew from 87 g to an average weight of 1,126 g per fish in 108 days of feeding. Gross production averaged 535 kg/mu (8,025kg/ha) for grass carp and 136 kg/mu (2,036 kg/ha) for silver carp. Average survival rates for grass carp and silver carp were 95% and 100%, respectively. Grass carp FCR with the all-plant protein, soy-maximized feed averaged 1.13:1. Average net economic return was RMB 1,674 per mu ($3,040/ha) at market prices of RMB 8.4/kg ($1.02/kg) for grass carp and RMB 3.2/kg ($0.39/kg) for silver carp. Return on investment (ROI) for the three demonstration ponds averaged 51.4%. Grass carp exhibited rapid growth, aggressive feeding behavior and efficient FCR with a soy-maximized feed formulated with standard soybean meal (44% crude protein) and soy hulls as the primary feed