The experiment was conducted at earthen ponds in the Bagerhat sadar upazila of to examine growth, production capacity, and economic return freshwater prawn (Macrobrachium rosenbergii) with persa (Planiliza persia) corsula mullet (Rhinomugil corsula) under polyculture system. Four treatments, designated as T1, T2, T3, T4 were used study, each three replicates. final weight prawns after 120 days ...

Temperature is an essential environmental factor affecting the viability of organisms. changes could cause damages or even death. The oriental river prawn, Macrobrachium nipponense, widely distributed in East Asian countries, and has been important economical aquaculture species China since 1990s. This prawn belongs to crustaceans, which a kind ectotherms very sensitive temperature due their re...

The distribution of enzymes involved in purine degradation in fish and crustaceous liver was examined by centrifugation in a sucrose density gradient. In mackerel, yellow mackerel, and prawn liver and mantis club hepatopancreas, uricase and allantoinase were located only in the peroxisomes and in the soluble fraction from broken peroxisomes, and allantoicase was located only in the peroxisomes....

They naturally found in coastal, estuarine and marine environment world wide (Letchumanan et al., 2014; Raghunath, 2014). Vibrionaceae have primarily been investigated due to their pathogenic potential to humans and aquatic animals and can be transmitted to humans via infected water or through fecal transmission. Several species of Vibrio have been implicated with disease in fishes (Elhadi et a...

l. The mechanical behaviour of crab shell is similar to that of prawn solid cuticle, especially in the occurrence of a low strain discontinuity in their bulk tensile stress-strain curves. 2. Although isolated crab chitin breaks in tension by the progressive failure of individual lamellae and exhibits post-fracture delamination, whole crab cuticle fails in an entirely brittle manner. 3. The mech...

Digestive proteinase activities of Artemesia longinaris were assayed at different stages of the molting cycle. Total proteolytic activity in the hepatopancreas was highest during postmolt. Trypsin and chymotrypsin activities were highest during intermolt. Specific inhibitors and zymograms of A. longinaris hepatopancreas extracts showed four trypsins (14.79, 15.49, 16.60, 17.38 kDa, respectively...