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Effects of the protein: energy ratio in isocaloric diets on the growth of Cichlasoma managuense (Günther 1869)
Author(s) -
ROJAS J. B. ULLOA,
VERDEGEM M. C. J.
Publication year - 1994
Publication title -
aquaculture research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.646
H-Index - 89
eISSN - 1365-2109
pISSN - 1355-557X
DOI - 10.1111/j.1365-2109.1994.tb00727.x
Subject(s) - biology , juvenile , protein efficiency ratio , zoology , dietary protein , composition (language) , growth rate , body weight , feed conversion ratio , endocrinology , ecology , linguistics , philosophy , geometry , mathematics
. A feeding experiment was conducted to evaluate the growth of tiger guapote, Cichlasoma managuense (Günther), fed on isocaloric diets with varying protein: energy ratios. The relative metabolic growth rate increased with the protein: energy ratio up to 110–120 mg protein/kcal ( P < 0·05). The protein efficiency ratio was optimal at 110mg protein/kcal. The body composition was clearly influenced by diet composition. Results indicate that juvenile C managuense obtains near optimal growth rates when fed 35–40% protein diets with 110–120mg protein/kcal. Higher ratios will not be cost effective.