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A 9‐week experiment was designed to study the effects of partial replacement of monocalcium phosphate (MCP) with neutral phytase on growth, body compositions, serum biochemical statuses and intestinal digestive enzyme activities of grass carp, Ctenopharyngodon idellus. The control diet (designated as P2.0) was prepared with 2.0% MCP but without phytase. The three other diets (designated as PP1.5,...
To determine the teratogenic effects of lead (Pb) on young Chinese sturgeon (A. sinensis), fertilized eggs (96‐h) were exposed to Pb2+ until juvenile stages (total exposure 112 days). Three nominal concentrations were employed: 0.2 mg L−1, 0.8 mg L−1 and 1.6 mg L−1. After the exposure period, juveniles were returned to Pb‐free water for a subsequent 42 days depuration period. Fish exposed to 0.8 and...
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