Experiments were carried out to study the effects of ammonia and nitrite on food consumption Macrobrachium amazonicum postlarvae. Postlarvae (average weight 0.0625 g) exposed during 21 days four concentrations total (0, 1.05, 2.1 4.2 mg. NH3+NH4+ L-1) 0.075, 0.15 0.30 mg N-NO2- L-1). After exposure period, six prawns per treatment maintained individually in 250 mL experimental units analyze as ...

The growth rate and mortality of giant prawns (Macrobrachium rosenbergii) in the Kuala Cenaku River, Indragiri Hulu Regency, Riau Province were carried out based on carapace length frequency data collected from May to July 2020. This study aims at River. For estimating dynamic population, analysed by using FiSAT II. parameter tiger shrimp was 0,78/year with asymptotic (L) 84,8 mm, total (Z), na...

Chemical compositions, volatile compounds and sensory property of Kapi produced from two shrimp species, Acetes vulgaris and Macrobrachium lanchesteri, were comparatively determined. Kapi produced from M. lanchesteri (KM) had the higher protein content but lower fat content, compared with that from A. vulgaris (KA) (p < 0.05). However, KA showed higher browning intensity (A420) and fluorescence...

This study investigated the effects of dietary tea tree oil (TTO) supplementation and feeding patterns on growth nonspecific immunity Macrobrachium rosenbergii. Prawns were randomly assigned into four patterns. Patterns 1 (P1) 4 (P4): prawns fed with a basal diet supplemented 100 mg/kg TTO, respectively; 2 (P2) 3 (P3): TTO at 1- 2-week intervals, respectively. A significant increase in performa...

The total haemocyte count (THC), phenoloxidase activity, respiratory burst (release of superoxide anion), superoxide dismutase activity, and phagocytic activity and clearance efficiency to the pathogen Lactococcus garvieae were measured when freshwater giant prawns Macrobrachium rosenbergii (16.2 +/- 2.1 g) were individually injected with saline, or dopamine at 0.5, 5.0, or 50.0 pmol prawn(-1)....

This study is aimed to assess the heavy metals contamination and health risk in Shrimp (Macrobrachium rosenbergii and Penaeus monodon) collected from Khulna-Satkhira region in Bangladesh. The results showed that the Pb concentrations (0.52-1.16 mg/kg) in all shrimp samples of farms were higher than the recommended limit. The Cd levels (0.05-0.13 mg/kg) in all samples and Cr levels in all farms ...