Abstract
ABSTRACT Effects of four feeding regimes on the development and feed intake, survival, productivity, and growth of Macrobrachium amazonicum larvae were investigated. Larvae were fed from stage II to IX, as follows: Artemia nauplii + inert diet during the entire larval cycle (AIn); Artemia nauplii for the entire larval cycle + inert diet from stage V onward (A/AIn); Artemia nauplii until stage IV + inert diet from stage IV onward (A/In); and only inert diet for the entire larval cycle [...]
Highlights
Macrobrachium amazonicum is the South American freshwater prawn with higher potential for culture (Kutty et al, 2000; Valenti, 2007; Moraes-Valenti and Valenti, 2010)
Macrobrachium amazonicum larvae are omnivorous and polytrophic, but live feed is essential in the first stages and act as a complementary diet in the last half of larval cycle
Feeding needs may change during larval development because freshwater prawn larvae develop through very distinct stages with different morphophysiological and behavioral characteristics
Summary
Macrobrachium amazonicum is the South American freshwater prawn with higher potential for culture (Kutty et al, 2000; Valenti, 2007; Moraes-Valenti and Valenti, 2010) It is largely consumed as feed in northern and northeastern Brazil. This species is hardy and bred and has rapid growth and a high survival rate in tanks and ponds (Moraes-Valenti and Valenti, 2010; Marques and Moraes-Valenti, 2012). Feeding strategy in crustacean larviculture should consider behavior, physiology, and nutritional requirements of the target species (Loya-Javellana, 1989; Sorgeloos and Léger, 1992; Lavens et al, 2000) These characteristics are scarcely known for M. amazonicum. Feeding needs may change during larval development because freshwater prawn larvae develop through very distinct stages with different morphophysiological and behavioral characteristics
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