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Biofloc technology in intensive broodstock farming of the pink shrimp Farfantepenaeus duorarum : spawning performance, biochemical composition and fatty acid profile of eggs
Author(s) -
Emerenciano Maurício,
Cuzon Gerard,
Arévalo Miguel,
Gaxiola Gabriela
Publication year - 2014
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/are.12117
Subject(s) - broodstock , spawn (biology) , biology , zoology , polyunsaturated fatty acid , shrimp , docosahexaenoic acid , penaeus , fishery , fatty acid , aquaculture , food science , biochemistry , fish <actinopterygii>
A 45‐day trial was performed to evaluate the effect of biofloc technology ( BFT ) with or without fresh food ( FF ) supplementation during pre‐maturation period on Farfantepenaeus duorarum spawning performance, biochemical composition and fatty acid profile of eggs as compared with conventional clear‐water system ( CW + FF ). Females raised in biofloc and that received FF supplementation ( FLOC + FF ) achieved better spawning performance in terms of number of eggs per spawn (49 × 10 3 ), number of eggs per spawn per g of spawner's body weight (2.1 × 10 3 ) and egg size (~275 μm) as compared with CW + FF (23 × 10 3 , 1.1 × 10 3 and 263 μm respectively), but both treatments did not vary from FLOC ( P > 0.05). High spawning activity was also observed in biofloc system as compared with clear‐water system as shown in number of spawns per ablated female (2.2–3.0 versus 0.6) and percentage of females that spawn at least once (80–82 versus 25%). Biochemical composition of eggs presented no significant differences among treatments. FA profile of eggs indicated that high spawning activity performed by females in FLOC + FF treatment was reflected in lower mean levels of EPA , DHA and sum of polyunsaturated fatty acids (n‐3) and (n‐6). The better reproductive performance demonstrated by females raised in biofloc justified the application of this technology in F. duorarum broodstock.