An investigation into the mass production of the freshwater rotifer Brachionus calyciflorus Pallas. 1. An eco-physiological approach to nutrition

Résultats de recherche: Contribution à un journal/une revueArticle

Résumé

Feeding and production rates of the freshwater rotifer, B. calyciflorus Pallas, were determined during a daily cycle of feeding with the alga Dictyosphaerium chlorelloides or with the yeast Saccharomyces cerevisiae. Filtration and ingestion rates of rotifers decreased significantly during the cycle of feeding. The filtration rate decreased from 4.02 to 1.18 μl/ind. h-1 with the algae and from 2.06 to 0.94 μl/ind. h-1 with the yeast. Production rates of 28 and 17 ind./ml d-1 were achieved, respectively, with algae and yeast. The filtration rate of rotifers was significantly influenced by the cellular density of algae but not by that of yeast. The maximal value (4.04 μl/ind. h-1) was obtained at an algal density of 4 × 106 cell/ml. With algae, the ingestion rate seemed to reach a maximum between 4 and 8 × 106 cell/ml (191 × 102 cell/ind. h-1) at 5 × 106 cell/ml. With yeast, the rotifer ingested a maximum of 86 × 102 cell/h. At optimal cellular density and photoperiod (L:D 24:0), the filtration and ingestion rates of rotifers were maximal at 25 °C.

langue originaleAnglais
Pages (de - à)325-336
Nombre de pages12
journalAquaculture
Volume105
Numéro de publication3-4
Les DOIs
étatPublié - 1 août 1992

Empreinte digitale

algae
Brachionus calyciflorus
Rotifera
yeast
nutrition
alga
ingestion rate
yeasts
ingestion
cells
Dictyosphaerium
photoperiod
Saccharomyces cerevisiae
rate

Citer ceci

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abstract = "Feeding and production rates of the freshwater rotifer, B. calyciflorus Pallas, were determined during a daily cycle of feeding with the alga Dictyosphaerium chlorelloides or with the yeast Saccharomyces cerevisiae. Filtration and ingestion rates of rotifers decreased significantly during the cycle of feeding. The filtration rate decreased from 4.02 to 1.18 μl/ind. h-1 with the algae and from 2.06 to 0.94 μl/ind. h-1 with the yeast. Production rates of 28 and 17 ind./ml d-1 were achieved, respectively, with algae and yeast. The filtration rate of rotifers was significantly influenced by the cellular density of algae but not by that of yeast. The maximal value (4.04 μl/ind. h-1) was obtained at an algal density of 4 × 106 cell/ml. With algae, the ingestion rate seemed to reach a maximum between 4 and 8 × 106 cell/ml (191 × 102 cell/ind. h-1) at 5 × 106 cell/ml. With yeast, the rotifer ingested a maximum of 86 × 102 cell/h. At optimal cellular density and photoperiod (L:D 24:0), the filtration and ingestion rates of rotifers were maximal at 25 °C.",
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An investigation into the mass production of the freshwater rotifer Brachionus calyciflorus Pallas. 1. An eco-physiological approach to nutrition. / Awaïss, Aboubacar; Kestemont, Patrick; Micha, Jean Claude.

Dans: Aquaculture, Vol 105, Numéro 3-4, 01.08.1992, p. 325-336.

Résultats de recherche: Contribution à un journal/une revueArticle

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