Immunostimulatory effect of <i style="">Tinospora cordifolia</i> Miers leaf extract in <i style="">Oreochromis mossambicus</i>

726-732Immunostimulatory effect of leaf extract of T. cordifolia on (i) specific immunity (antibody response), (ii) non-specific immunity (neutrophil activity) and (iii) disease resistance against Aeromonas hydrophila was investigated in O. mossambicus. Ethanol and petroleum ether extracts of the leaves were used. Both ethanol and petroleum ether extracts administered at doses of 0.8, 8 or 80 mg/kg body weight, prolonged the peak primary antibody titres upto one to three weeks. Ethanol extract at the dose of 8 mg/kg and petroleum ether extract at the doses of 0.8 or 8 mg/kg enhanced the secondary antibody response. All the doses of ethanol extract significantly enhanced neutrophil activity. Fish injected with petroleum ether or ethanol extract at a dose of 8 mg/kg were protected against experimental infection with virulent A. hydrophila. The results indicates the potential of T. cordifolia leaf extracts for use as an immunoprophylactic to prevent diseases in finfish aquaculture

DESIGN AND ANALYSIS OF SINGLE PHASE TO THREE PHASE DRIVE SYSTEM BASED ON TWO PARALLEL CONVERTERS

Single-stage to three-stage power transformation utilizing power hardware converters is a surely understood innovation, when the setups and control procedures effectively refined in the specialized study are considered. This paper presents single-stage to three-stage with dc-join converters with parallel rectifier and arrangement inverter for lessening in the information current and diminishment of the yield voltage handled by the rectifier circuit and inverter circuit separately. In this paper we proposed better answer for single stage to three stage drive framework by utilizing 2 parallel single stage rectifier arranges, a 3-stage inverter stage. Parallel converters can be utilized to enhance the force ability, unwavering quality, proficiency and repetition. A separation transformer is not utilized for the decrease of flowing streams among various converter stages. It is a vital goal in the framework outline. The complete correlation between the exhaustive model of proposed converter and standard designs will be exhibited in this work. Reenactment of this model will be done by utilizing MATLAB/Simulink