Effects of Microalgae and Alfalfa Meal on Population Growth and Production of a Freshwater Rotifer, Euchlanis dilatata (Rotifera: Mongononta)
Identifieur interne : 000139 ( Main/Exploration ); précédent : 000138; suivant : 000140Effects of Microalgae and Alfalfa Meal on Population Growth and Production of a Freshwater Rotifer, Euchlanis dilatata (Rotifera: Mongononta)
Auteurs : Omidvar Farhadian [Iran] ; Leila Daghighi [Iran] ; Eisa Ebrahimi Dorche [Iran]Source :
- Journal of the World Aquaculture Society [ 0893-8849 ] ; 2013-02.
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.
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DOI: 10.1111/jwas.12012
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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.</div></front></TEI><affiliations><list><country><li>Iran</li></country></list><tree><country name="Iran"><noRegion><name sortKey="Farhadian, Omidvar" sort="Farhadian, Omidvar" uniqKey="Farhadian O" first="Omidvar" last="Farhadian">Omidvar Farhadian</name></noRegion><name sortKey="Daghighi, Leila" sort="Daghighi, Leila" uniqKey="Daghighi L" first="Leila" last="Daghighi">Leila Daghighi</name><name sortKey="Dorche, Eisa Ebrahimi" sort="Dorche, Eisa Ebrahimi" uniqKey="Dorche E" first="Eisa Ebrahimi" last="Dorche">Eisa Ebrahimi Dorche</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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