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\hypersetup{pdftitle={Fishery Wastes Management in Nigeria: The Aquaculture Option},pdfauthor={Dapo Fagbenro},pdfsubject={Tropentag 2016: Abstract},pdfkeywords={Aquaculture feeds, fermented fish silage, fish meal, fishery wastes},pdfpagemode=None,colorlinks=true}
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\parbox[b]{13.4cm}{\centering \large{\textbf{Tropentag, September 18-21, 2016, Vienna, Austria}}\\[1ex] \Large{``Solidarity in a competing world ---\\fair use of resources''\\[2ex]}}
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\Large{\textbf{Fishery Wastes Management in Nigeria: The Aquaculture Option\footnote{\textbf{Contact Address:} Dapo Fagbenro, The Federal University of Technology, Akure, Fisheries and Aquaculture Technology, Akure, Nigeria, \mbox{e-mail}: \email{fagbenro_dapo@yahoo.com}}\\[0.8ex]}}
\normalsize{\textsc{Dapo Fagbenro}}
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\begin{itemize*}
\item[]{\small{\textit{The Federal University of Technology, Akure, Fisheries and Aquaculture Technology, Nigeria}}}
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\index[author]{Fagbenro, Dapo}
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\textbf{Abstract}
\begin{abstract}
\normalsize{
Large quantities of fishes are landed from marine and freshwaters in Nigeria in short periods and often glut the market, consequently much remain unsold and spoil due to poor handling and processing. Large quantities of fishery wastes are thus generated and abound in coastal region of Nigeria, where they create disposal problems. Current disposal practices include burial, municipal garbage disposal and dumping in fields or streams. Fishery wastes represent oversupply to immediate market demands due to improper preservation. They comprise low"=value fishes, waste fish, carcass and by"=products from filleting and deboning processes. An alternative fishery wastes disposal is the recycling into fish meal or silage for use as aquaculture feed supplements. Presently, their contribution to aquafeeds is based on crushing sun"=dried wastes, milled to powder and blended with various carbohydrate feedstuffs to produce farm"=made aquafeeds. The processing is currently undertaken on cottage level. Fishery wastes meal and fishery wastes silage (fermented) were evaluated as substitutes/replacements for commercial herring meal in a standard/reference diet. Growth and carcass composition of catfish fed the test diets were similar. Fishery wastes could be economically utilised to produce acceptable high"=protein feedstuffs (meal, silage) for aquafeeds. Fermented fish silage has been used as feed supplement for various aquaculture fishes and they possess good nutritional quality, and the biological value of its protein was comparable with that of fish meal protein. The production of meal and silage appears an attractive way of utilising fishery wastes, and will reduce the foreign currency drain presently involved in importing herring fish meal. However, fish meal production should not overshadow the benefit of direct human consumption of low value fishes in the fight against malnutrition.}

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\noindent \textbf{Keywords:} Aquaculture feeds, fermented fish silage, fish meal, fishery wastes
\index[key]{Aquaculture feeds}
\index[key]{Fermented fish silage}
\index[key]{Fish meal}
\index[key]{Fishery wastes}
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