4.3 Article

Demonstration that Feeds Containing <1% Fishmeal Can Support Grow-out of Large Juvenile Red Drum, Sciaenops ocellatus, and Reduce Nutrient Waste

期刊

JOURNAL OF THE WORLD AQUACULTURE SOCIETY
卷 49, 期 1, 页码 141-154

出版社

WILEY
DOI: 10.1111/jwas.12421

关键词

alternative protein sources; enzyme additives; fishmeal replacement; red drum; reduced pollution

资金

  1. NOAA Aquaculture Program internal competitive grant
  2. NOAA from NIST

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We conducted a 16-wk feeding trial with large juvenile red drum, Sciaenops ocellatus. Four diets were randomly assigned to six replicate tanks per treatment. Three isonitrogenous (ca. 44.5% protein) and isolipidic (ca. 14.1% lipid) extruded diets were formulated to compare a fishmeal-based diet with diets using alternative protein sources. Diet 1 contained 19.60% fishmeal and 21.42% poultry meals as primary protein sources. Two alternative diets were formulated reducing the fishmeal to 0.61% by substituting poultry meals (33.85%) and soybean protein concentrate (11.55% in Diet 2 and 11.70% in Diet 3). Diet 3 also included Allzyme Vegpro (R) and Allzyme (R) SSF at 0.04%. Diet 4, a natural diet consisting of chopped cigar minnows, squid, and shrimp, was used as a positive control to compare growth rates of formulated feeds to near maximum growth under these culture conditions. We found that reducing the amount of fishmeal to <1% by using alternative protein sources did not affect the growth rate, survival, or health of red drum but improved assimilation of phosphorus, reduced potential release of P to the environment, and significantly lowered the amount of feeder fish needed in feed. The control diet identified performance benchmarks for future feeds development work.

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