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ARS Home » Southeast Area » Auburn, Alabama » Aquatic Animal Health Research » Research » Publications at this Location » Publication #331738

Research Project: Pathogen Characterization, Host Immune Response and Development of Strategies to Reduce Losses to Disease in Aquaculture

Location: Aquatic Animal Health Research

Title: From floor sweepings to fish flesh: Phytase superdosing in the US catfish industry

item PEATMAN, ERIC - Auburn University
item Beck, Benjamin

Submitted to: Book Chapter
Publication Type: Book / Chapter
Publication Acceptance Date: 9/1/2016
Publication Date: 11/1/2016
Citation: Peatman, E., Beck, B.H. 2016. From floor sweepings to fish flesh: Phytase superdosing in the US catfish industry. In: Walk, C.L., Kuhn, I., Stein, H.H., Kidd, M.T., Rodehutscord, M., editors. Phytate destruction consequences for precision animal nutrition. The Netherlands. Wageningen Academic Publishers. p. 237-250.

Interpretive Summary:

Technical Abstract: Market competition, rising commodity prices, and a push towards sustainability are dictating higher inclusion rates of plant-based feedstuffs in aquaculture feeds worldwide. Such shifts bring with them many challenges, including recognizing and quantifying losses in digestibility and performance due to anti-nutritional factors. Feed enzymes can help to transform lower cost ingredients into high value nutrition — floor sweepings into fish flesh. The extra-phosphoric effects of phytase superdosing have received relatively little attention in the aquaculture industry. Here we review aspects of phytic acid, both in the cultured organism and in the environment, as they pertain to the catfish industry, the largest segment of aquaculture in the United States. We highlight results of recent research on superdosing in catfish and point out areas in need of additional study.