Evaluation of the nutritional quality of Chaetoceros muelleri Schütt (Chaetocerotales: Chaetocerotaceae) and Isochrysis sp. (Isochrysidales: isochrysidaceae) grown outdoors for the larval development of Litopenaeus vannamei (Boone, 1931) (Decapoda: Penaeidae)

Abstract

The biomass, proximal composition and fatty acid profile of Isochrysis sp., Chaetoceros muelleri and their mixture, grown under greenhouse conditions, were evaluated. The nutritional value of both species supplied as the monoalgal (Chaetoceros muelleri: Diet I, and Isochrysis sp. Diet II) and mixed diet (Diet III) for larval Litopenaeus vannamei was also assessed on the basis of the development and biochemical composition of the larvae. The highest protein levels were obtained in Diets I and II (40% and 35%, respectively). No significant differences in larval survival were found among the diets; however, larvae fed on Diet II had the lowest mean larval length

Evaluation of growth, survival and body composition of larval white shrimp (Litopenaeus vannamei) fed the combination of three types of algae

“…Furthermore, the development of larvae fed C. muelleri or the mixed diet was always at least as fast as those fed T. suecica, and always faster than that of larvae fed the other diets. In this study, the average growth of L. vannamei larvae from Zoea I to III was different in size range described by Treece and Yates (1990) and Rodriguez et al (2012). Rodriguez et al (2012) reported that the survival was similar between the monospecific treatments (Chaetoceros and Isochrysis) and the mixed treatment (Table 1).…”

“…T. suecica had the highest Polysaccharide level when compared with other treatments. Rodriguez et al (2012) reported that protein and lipid levels of Zoea III were not significantly different among the diets (Chaetoceros, Isochrysis and mixture), in spite of the lipid level being significantly higher in Diet III (Chaetoceros ? Isochrysis).…”

“…was richer in carbohydrates (24.75 %). Rodriguez et al (2012) reported that although Isochrysis sp. had the lowest ratio of proteins, its carbohydrate and lipid ratio was high, and it also had the highest percentage of total polyunsaturated fatty acids.…”