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Nutritional value of animal by‐product meal in practical diets for Nile tilapia Oreochromis niloticus (L.) fry
Author(s) -
RodríguezSerna M,
OlveraNovoa M A,
CarmonaOsalde C
Publication year - 1996
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.1365-2109.1996.tb00967.x
Subject(s) - nile tilapia , oreochromis , biology , fish meal , tilapia , meal , food science , soybean meal , fish oil , fish <actinopterygii> , dried fish , fishery , soybean oil , zoology , microbiology and biotechnology , ecology , raw material
Animal by‐product meals (ABM) were substituted for fish meal in five experimental diets for Nile tilapia fry, Oreochromis niloticus (L), with 25%, 50%, 75% and 100% substitution. Two diets with 100% ABM were tested, one with 50:50 animal lipid:soybean oil, and the other with 100% fish oil as attractant. In general, the best growth and feeding performance was obtained with a control diet based on fish meal as the sole protein, but the results were not statistically different from those obtained with 75% and 100% ABM with soybean oil. A simple cost analysis suggested better economic efficiency when tilapia were fed with 100% ABM. It was concluded that animal by‐product meal can be used as a sole protein source in commercial diets for Nile tilapia fry, without affecting growth and food utilization of the fish, improving the economics of feeding in comparison with fish meal.