The Effects of Microalgae as Live Food for Brachionus plicatilis (Rotifer) in Intensive Culture System
Document Type
Article
Publication Date
1-1-2018
Abstract
Brachionus plicatilis is used to feed fish and crustacean larvae in the aquaculture industry. It is well established that the type of microalgae may influence rotifer production. This experiment was conducted to determine the effect of five different locally available microalgae species at Fisheries Research Institute (FRI), Kampung Pulau Sayak, Kedah, Malaysia on the instantaneous growth rate (µ) of rotifer. Nannochloris sp., Tetraselmis sp., Isochrysis sp., Chlorella sp., and Nannochloropsis sp. were used as feed at different algae densities (0.1, 0.3, 0.7 and 1.5 × 106 cells/ml) and culture volumes (20, 70 and 210 ml). At algae densities ranging from 0.3 to 1.5 × 106 cells/ml, an average µ value of more than 0.90 per day were recorded for all algae species. However, at density of 0.1 × 106 cells/ml, only Tetraselmis sp. resulted in the significantly highest µ value compared with others (p < 0.05). In terms of volume, smaller culture volume of Tetraselmis sp. (20 ml) showed significantly higher µ compared with higher volume (70 and 210 ml cultures).
Keywords
Brachionus placitilis, Instantaneous Growth Rate, Intensive Culture, Nannochloris sp., Tetraselmis sp., Isochrysis sp., Chlorella sp., Nannochloropsis sp.
Divisions
biology
Publication Title
Tropical Life Sciences Research
Volume
29
Issue
1
Publisher
Penerbit Universiti Sains Malaysia
Additional Information
Abdul Majid Mohamed. Biology Division, Centre for Foundation Science, Universiti Malaya, Kuala Lumpur, 50603, Malaysia.