Haematococcus pluvialis biomass as a replacement for fish meal in the diet of Macrobrachium amazonicum post-larvae (Heller, 1862)

Tavares, Lúcia Helena SipaúbaTedesque, Mayara GalattiMillan, Rodrigo NeyFernades, João Batista KochenborgerScardoeli-Truzzi, Bruno

The current study evaluates the effect of partial or total replacement of fish meal with Haematococcuspluvialismicroalgae, cultivated inanNPKculture medium, on the growth performance ofMacrobrachionamazonicum shrimppost-larvae. Four dietswere formulated:control(without microalgae), 25, 50 and 100%H. pluvialisreplacement.Only crude protein weight gain showed no interaction and was not selected for principal components analysis. The 25% fishmeal replacement in the diet was not effective, being similartothe control. However, thecomplete replacementof fishmealwith H. pluvialispromoted elevated survivability, length, weight and proteinretention, making itthe most relevant treatment for M. amazonicumpost-larvae. Therefore, it is possible to completely replace fishmealwith the microalgae H. pluvialisin the diet of M.amazonicumshrimp, which improves growth performance.(AU)

1. shrimp feed
2. growth performance
3. feed treatments
4. microalgae