News features and technical articles about the evolution of aquaculture, one of the world’s fastest growing industries.

Alberto J. P. Nunes

Health & Welfare

Effect of dietary methionine on Pacific white shrimp juveniles  

This study tested five diets formulated with increasing levels of methionine (Met) and Met + cysteine (Cys) and their effect on growth performance of juvenile Pacific white shrimp stocked at 50, 75 or 100 animals/m2 in a green water system. 

Aquafeeds

NIRS technology ensures shrimp feed quality at farm level

Feed plants deal with varied raw materials, formulations and feeds for different animals, which can lead to quality issues and nutrient variations. Near-infrared spectroscopy (NIRS) has been successfully applied in Brazil to ensure feed quality standards at the farm level. 

Health & Welfare

Dietary levels of fishmeal, fish oil affect shrimp growth

Authors evaluated how limiting dietary essential amino acids and long-chain polyunsaturated fatty acids would affect the growth performance of white shrimp raised in a zero-water-exchange biofloc system. The shrimp were fed diets with varied levels of fishmeal and fish oil