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Title: Haliotis tuberculata coccinea grow-out performances according to diet and production systems
Authors: Marrero Sánchez, Nuria Esther 
Viera Toledo,Maria Del Pino 
Courtois de Viçose, Gercende 
UNESCO Clasification: 251092 Acuicultura marina
Keywords: Abalone
Flow through
Formulated diet
Fresh algae
Grow out, et al
Issue Date: 2024
Project: New species, processes and products contributing to increased production and improved sustainability in emerging low trophic, and existing low and high trophic aquaculture value chains in the Atlantic 
Journal: New Zealand Journal of Marine and Freshwater Research 
Abstract: Haliotis tuberculata coccinea is a candidate of growing interest to diversify aquaculture in the Canary Islands, principally based on fish production, to improve aquaculture development opportunities. The economic viability of commercial abalone farming depends largely on the rearing system employed and the feeding sources employed during the grow-out culture period. We studied the effects of two land-based culture systems on the growth performance of abalone and the nutritional quality of their tissues, in a crossed design. Recirculated (RAS) and open flow (FLOW) culture systems were compared. Fresh macro algae (FMA) (Gracilaria cornea and Ulva rigida) were compared to manufactured compound feed (CF) and a mixture of both (MIX). Survival rates were high (97–100%) regardless the treatments tested. MIX and FMA diets produced the best results for Shell Growth Rate, Specific growth rates for shell growth (SGRsl) and weight (SGRw) as well as Food Conversion Ratio (FCR). The highest value for feed intake was recorded for the MIX diet. A positive relationship has been observed between the amounts of protein and lipids in diets and the disposition of these in the viscera of animals fed such diets. The rearing system used had no significant effect on growth and nutritional parameters.
ISSN: 0028-8330
DOI: 10.1080/00288330.2024.2359110
Source: New Zealand Journal of Marine and Freshwater Research [ISSN 0028-8330], (Enero 2024)
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