Crude polysaccharide extracts form Sargassum fusiforme could enhance immunological activities in the shrimp, Fenneropenaeus
chinensis [13].
Gracilaria fisheri is a red seaweed commonly found along the
coast of south-east Asian countries [14]. It is occasionally cultured
in shrimp farms for wastewater treatment [15]. Because of the
potential benefit for shrimp culture, the properties of ethanol
extract of G. fisheri as an immunostimulant and anti-bacterial agent
against VH in P. monodon were therefore studied and are reported
herein.