The relationship between the natural diets and digestive enzyme with hepatopancreas and ovarian maturation of mud crab, scylla olivacea (HERBST, 1796)

Abstract

Recently, there has been a growing interest on ovarian maturation study of mud crab, however study on any different factors that related with ovarian maturation of mud crab is still lacking. Therefore, this study covers the factors such as natural diet, digestive enzyme and hepatopancreas related to ovarian maturation of Scylla olivacea. Sixty of female adult S. olivacea were collected from Setiu Wetlands. Foregut was collected to study its fullness and content. Hepatopancreas was collected to study its digestive enzyme activity, B-cell and R-cell.