A Study on culture of Litopenaeus vannamei (preparation, water quality parameters) compared with different stocking densities using standard operational procedures

Effect of different stocking density on growth, survival Litopenaeus vannamei (Boone, 1931) in summer and monsoon crop province Gujarat States India

The present study reports the identification of two new staurosporine derivatives, 2-hydroxy-7-oxostaurosporine (1) and 3-hydroxy-7-oxostaurosporine (2), obtained from mid-polar fractions of an aqueous methanol extract of the tunicate Eudistoma vannamei, endemic to the northeast coast of Brazil. The mixture of 1 and 2 displayed IC₅₀ values in the nM range and was up to 14 times more cytotoxic t...

The study was designed and conducted to optimize the structure of polyculture for Penaeus vannamei, Siganus guttatus (omnivorous fish), Selenotoca multifasciata (carnivorous compare changes in yield, survival, utilization rates nitrogen (N) phosphorus (P). Five treatments were performed as follows: Control (C) (0.0719 kg/m3, 0, 0), PSS1(0.0719 0.0018 0.0008 kg/m3), PSS2 0.0033 0.0016 PSS3 0.004...

Bacteria capable of producing different extracellular enzymes of potential relevance in digestive processes were isolated from the stomach, hepatopancreas and intestine of Pacific white shrimp Litopenaeus vannamei. A total of 64 strains with proteolytic activity were isolated and grouped into 16 clusters based on morphological characteristics: 4 groups were isolated from the intestine; 5 from t...

Single intramuscular injections of aflatoxin B1 into the tail muscle of Penaeus stylirostris produced 24- and 96-h median lethal doses of 100.5 (78.3 to 129.0) and 49.5 (29.8 to 82.3) mg/kg, respectively. A toxicity curve showed no threshold at the levels tested. The mortality response in a feeding study with P. vannamei was not dose dependent, but tissue and organ damage were similar to that s...