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Effect of commercial probiotic on the population dynamics of selected rotifers ( Brachionus angularis , Plationus patulus ) and cladocerans ( Moina cf. macrocopa and Simocephalus mixtus )
Author(s) -
ContrerasTapia Rubén Alonso,
CastellanosPáez María Elena,
Nandini S.,
CastilloRivera Manuel,
BenítezDíazMirón Marcela Ivonne,
GarzaMouriño Gabriela
Publication year - 2020
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.14793
Subject(s) - probiotic , biology , rotifer , zooplankton , live food , population , food science , brachionus , zoology , fish <actinopterygii> , ecology , aquaculture , fishery , bacteria , genetics , demography , sociology
In recent decades, an increasing interest in aquaculture for producing good quality and quantity of live food has led to the use of probiotics. Rotifers and cladocerans are important as live prey for fish and invertebrate larval rearing. We carried out an experimental study to evaluate the effect of a commercial probiotic (NanoCrusta®) on improving population growth of Brachionus angularis, Plationus patulus, Moina cf. macrocopa and Simocephalus mixtus . The probiotic was tested by direct supplementation (2.1 × 10 6 , 4.2 × 10 6 , 8.5 × 10 6 and 1.7 × 10 7 cells/ml) in addition to C. vulgaris as a source of food (1 × 10 6 cells/ml). The results indicated that probiotics enhanced maximum population density ( D max ) and the population growth rate ( r ) in both zooplankton groups. At 4.2 × 10 6 cells/ml, B. angularis improved their D max (62.74%) and r (28%) compared with probiotic‐free control, while P. patulus enhanced their D max and r by 51.26% and 20.83% (probiotic at 8.5 × 10 6 cells/ml). The two lowest probiotic densities resulted in an improvement in the parameters compared with the probiotic‐free control treatments: M . cf. macrocopa enhanced D max by 14.82% and r by 18%, and S. mixtus incremented D max 10.92% and r by 10%. The addition of probiotic bacteria also resulted in an improvement in the rotifer egg ratio ( ER ).