Abstract

The culture of shrimp received maximum importance due to high nutritional value, but the disease outbreak during the culture is a major concern. Some environmental factors, infectious organisms (fungi and viruses, protozoan’s etc.), and pollutants (chemical and biological) also cause the mass mortalities in the pond. These environmental factors negatively influence the sustainability of shrimp farming and also directly affect to the growth rate and survival in the grow-out culture system. Therefore, the present study was undertaken with the objective to study the bimolecular changes due to causes of the black gill disease in Litopenaeus vannamei (L. vannamei). This study was undertaken to present the effect of infection on gills normal and infected shrimp at molecular level by using Fourier transform infrared (FTIR) spectroscopy. The results mainly reveal that, infected black gill disease causes an increase in lipid content and an alteration in protein profile with a decrease in alpha-helix and an increase in beta-sheet structure and random coil in gills which might be reflecting a slight sub lethal effect of black colour gills on infected shrimp in the study.

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