Morphological, Histological, and Physiological Responses of Female Orange Mud Crab, Scylla olivacea (Herbst, 1796), Fed with Different Dietary Lipid Levels

The main focus of the study was to assess effect lipid levels on reproduction female orange mud crab, Scylla olivacea. Four isonitrogenous feed (~420 g/kg) were formulated with different percentages: T 1 = 60 g / kg , id="M2"> 2 80 id="M3"> 3 100 and id="M4"> 4 120 . A feeding trial carried out 120 matured crabs for 90 days 30 replicates in each treatment. Based morphological, histological, hormonal analysis performances experimental diet tested. results experiment disclosed positive body weight gain (BWG) specific growth rate (SGR), highest value recorded that fed T4 (BWG: id="M5"> 14.43 ± 1.14 ; SGR: id="M6"> 0.10 0.01 % da y − ). gonado-somatic index (GSI) hepato-somatic (HSI) noted T4, a id="M7"> 14.51 1.13 id="M8"> 5.23 0.55 respectively ( id="M9"> P < 0.05 histological assessment revealed oocyte diameter id="M10"> 192.80 21.93 μm), where correlated progesterone (Pg) concentrations ovary id="M11"> r 0.73 Evidence also indicated Pg estradiol (E2) are important ovarian development S. olivacea their affected by levels. An overall g/kg contributes optimal reproductive performance Yet, further is expected be future determine nutrient-dose response as may not optimum level Moreover, extrapolation data from this can used guidelines formulation developments research adult crustaceans.