Abstract
Fabrea salina is a hypersaline ciliate having importance as a live food source for juvenile stages of aquatic animals including smaller invertebrates. The analysis of this ciliate for proximate and biochemical compositionwas carried out. The moisture, protein, fat, carbohydrate and ash content of F salina from natural sources were 86.66′0.380, 56.66′0.494%, 36.66′0.614%, 1′0.073% .and 4′0.182%, respectively. Gas chromatographic analysis (percent area below the curve) revealed that the presence of oleic acid was higher over other fatty acids in both natural and cultured F salina. The absolute content of oleic acid was higher in natural (18.91% area) than in the cultured (10.74% area) F salina. Linoleic and linolenic acids were also among major fatty acids with the percentage area of 16.29 and 14.58, respectively. The number of fatty acids in cultured Fabrea was less as compared to the natural ones and the oleic acid was followed by palmitic acid, palmitoleic acid, linoleic acid and stearic acid.
Highlights
The commercial production of fish and shellfish species increases every year due to the advancement in culture techniques which necessitates the identification of new sources of food organisms and their mass cultivation
The biochemical composition of ciliates is of prime importance in understanding the nutritional benefits for the growth and reproduction that metazoans acquire by consuming these animals
The analysis revealed that Fabrea salina contained
Summary
The commercial production of fish and shellfish species increases every year due to the advancement in culture techniques which necessitates the identification of new sources of food organisms and their mass cultivation. Very few studies have been carried out on the nutritional quality of live feeds used in hatcheries for seed production of aquaculture species. Ciliates are most specialized protozoa and are found in a variety of habitats. They form an important component of estuarine and coastal marine ecosystems as both consumers of bacteria and prey for metazoan grazers (Stoecker and Cappuzzu, 1990; Sanders and Wickham, 1993). Fabrea salina is a much suitable candidate species as a live food for mariculture purposes.
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