Evaluation of Feed Stimulants in Diets for Sea Bream (Sparus aurata)

Date
2009
Authors
Chatzifotis, Stavros
Arias, Marta Vazquez
Papadakis, Ioannis E.
Divanach, Pascal
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Israeli Journal of Aquaculture - BAMIGDEH
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Abstract
Six isoprotein and isolipidic diets were formulated to investigate the effect of dietary additives on growth and feed efficiency of sea bream (Sparus aura- ta) fry fed a fishmeal-based diet for 80 days. The additives (protorsan, hydrolyzed fish protein, squid meal, krill meal, and betaine + inosine-5’- monophosphate) were added to the diets at the expense of fishmeal. The specific growth rates of the fish ranged from 2.17-2.18% per day for the pro- torsan and control groups to 2.42% per day for the group fed the squid addi- tive. Significant differences (p<0.05) in final body weight and specific growth rate were detected only between the protorsan and control groups and the squid additive group. The feed conversion ratio ranged from 1.04 in the group fed hydrolyzed fish protein group to 1.24 in the group fed krill with no statistically significant differences (p>0.05) between treatments. The feed stimulating action of taurine was tested by observation. Pellets coated in a taurine solution were more actively consumed than control pellets during the morning feeding but consumption did not differ during the afternoon feeding.
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sea bream, betaine, feeding stimulants, fishmeal replacement, fish hydrolysate, growth, inosine-5’-monophosphate (IMP), krill meal, protorsan, squid meal, taurine
Citation
Chatzifotis, S., Arias, M.V., Papadakis, I.E., & D.P. (2009). Evaluation of Feed Stimulants in Diets for Sea Bream (Sparus aurata). The Israeli Journal of Aquaculture - Bamidgeh, 61(4), 315-321.
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7 pages
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