Larval rearing of giant gourami, Osphronemus goramy Lacépède 1801 fed with different live food organisms
2018
Veracruz, Emmanuel Manalad | Tadeo, Andie John Delacruz
Assessment of growth performance, survival and body crude protein of giant gourami, Osphronemus goramy Lacépède 1801 larvae fed with different live food organisms was conducted to identify the most suitable live food for larval rearing. Growth performance (mean final weight and length) of giant gourami larvae was significantly highest in enriched Moina (55.3 ± 0.7 mg and 16.27 ± 0.29 mm), followed by unenriched Moina (41.0 ± 0.6 mg and 14.73 ± 0.17 mm), unenrichedPanagrellus redivivus (Linnaeus 1767) (31.7 ± 0.3 mg and 10.47 ± 0.35 mm), unenriched Artemia (31.0 ± 0.3 mg and 12.20 ± 0.23 mm), enriched Artemia (31.0 ± 0.3 mg and 13.20 ± 0.61 mm), enriched P. redivivus (31.0 ± 0.3 mg and 10.53 ± 0.75 mm) and mixed-zooplankton (19.7 ± 0.9 mg and 8.87 ± 0.24 mm). Highest mean survival of giant gourami larvae was obtained in enriched Moina (96.95 ± 1.21 %) and the lowest mean survival rate was obtained in mixed-zooplankton (74.72 ± 1.47 %). Correlation analysis of crude protein content of live food organisms showed a positive lineareffect on body crude protein content of giant gourami fry. Enriched Moina was the most suitable live food for the larval rearing of giant gourami based on growth performance and survival. The use ofSpirulina powder, fish oil and baker’s yeast was adequate for the enrichment of Moina for it gave a significant increase in crude protein content compared to other enriched live food organisms.
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