For Better Performance Please Use Chrome or Firefox Web Browser

Effects of microalgae and alfalfa meal on population growth and production of a freshwater rotifer Euchlanis dilatata (Rotifera:Mongononta)

Farhadian O., Daghighi  L. &  Ebrahimi Dorche E. Journal of the World Aquaculture Society 44: 86-95. (ISI Journal)

Abstract:

Population growth and production of the freshwater rotifer, Euchlanis dilatata, were determined
after being fed 1 of 12 diets: Scenedesmus quadricauda (S), Chlorella vulgaris (C), baker’s yeast
(Saccharomyces cerevisiae) (Y), alfalfa meal (Medicago spp.) (A), and eight combinations of S+C,
S+Y, C+Y, S+C+Y, S+A, C+A, S+C+A, and Y+A (mixture in the same ratio by equal nitrogen
weight). Results showed that both microalgal and alfalfa meal alone and in combination with Y
had a significantly higher (P < 0.05) population growth and production compared with Y alone.
The mean maximum E. dilatata population density fed on S, S+Y, C, C+Y, S+C, S+C+Y, Y, A,
S+A, C+A, S+C+A, and Y+A diets were 65±7.5 (mean±SE), 124.6±17.2, 115.8±7.9, 41.5±7.9,
131±14.1, 93.5±8.7, 14.5±7.6, 129.5±18.5, 255.0±20.5, 180±30.5, 124.5±25.4, and 61.5±24.5
individuals/mL, respectively. Correspondingly, the mean population growth rates (K) through the
16-d culture period were 0.29, 0.40, 0.45, 0.27, 0.34, 0.41, 0.26, 0.51, 0.58, 0.59, 0.39, and 0.45/d,
respectively. Results indicated that alfalfa meal in combination with microalgae and yeast could be
used as primary diets for E. dilatata culture. This may reduce the costs of rotifer production.

Journal Papers
Month/Season: 
February
Year: 
2013
File: