Effects of Fumonisin B1-Containing Feed on the Muscle Proteins and Ice-Storage Life of White Shrimp (Litopenaeus vannamei)

Juvenile (5.5-5.7 g) white leg shrimp were exposed to mycotoxin in one indoor trial by feeding fumonisin B-1 (FB1) at levels from 0.2 to 2.0 mu g g(-1) FB1 for 30 days. Shrimp growth was affected after exposure to more than 0.6 mu g g(-1) FB1. Soluble muscle protein concentration decreased, and changes in myosin thermodynamic properties were observed in shrimp after 30 days of exposure to FB1. Marked histological changes in tissue of shrimp fed a diet containing FB1 at 2.0 mu g g(-1) were also observed. Shrimp fed diets containing more than 0.6 mu g g(-1) FB1 showed greater decrease in shear forces after 12 days of ice storage.