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Objectives:
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Determine the specific growth curve for yellow perch fed
semi-purified and practical diets and raised in tank culture conditions. That information
is a vital component to the economics and marketing portion of this proposal.
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Determine the effects of graded levels of different lipid sources on
growth, feed conversion, dressout and nutrition composition of yellow perch fillets.
Methodology: Replicated groups of yellow perch will
be fed both purified and practical diets containing varying sources and levels of lipid
sources. All fish will be fed their respective diets for a minimum of ten weeks. At the
end of the study, fish will be bested, weighed counted and processed for nutritional
composition including fatty acid analyses, of fillets.
Rationale: The potential for yellow perch culture
in the Great Lakes states is real. Development of cost-effective diets that result in
consistent predictable fillet composition is a vital component of realizing the potential.
Additionally, this line of research will improve profitability of perch culture as the
costs of various lipid sources is vastly different.
Accomplishments: We anticipated accomplishing a
definitive series of studies with lipid metabolism in yellow perch. Those results will be
important scientific and practical foundation for future research and development of the
perch aquaculture industry.
Benefits: Completion of these studies will benefit
current and future producers of yellow perch by identifying an appropriate lipid source
for dietary inclusion. Further, producers will have definitive data on the quality and
composition of their product, which will be important marketing information.
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