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Latin american journal of aquatic research

On-line version ISSN 0718-560X

Abstract

MARDONES, Alfonso; CORDERO, Rodrigo; AUGSBURGER, Alberto  and  DE LOS RIOS-ESCALANTE, Patricio. Development of algae Gracilaria chilensis silage for feeding red abalone Haliotis rufescens. Lat. Am. J. Aquat. Res. [online]. 2015, vol.43, n.2, pp.295-303. ISSN 0718-560X.  http://dx.doi.org/10.3856/vol43-issue2-fulltext-4.

In Chile, the main input used as food for abalone is seaweeds Gracilaria chilensis and Macrocystis pyrifera. These seaweeds undergo a remarkable low availability in autumn and winter, which entails a considerable increase in prices, having to depend on supplies from increasingly remote areas of abalone farms and eventually generating indirect ecological impacts in their populations. As a general objective it was proposed to develop and evaluate seaweed G. chilensis silage for feeding red abalone (Haliotis rufescens), determining the amount of leachate generated during the process, the change in proximate composition of the algae, preference and consumption of G. chilensis silage by red abalone. A silage product of good physical, chemical and conservation characteristics, and well accepted by the abalone, was achieved.

Keywords : Gracilaria; seaweed; Haliotis; abalone; silage; aquaculture.

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