The quest to sustain curent aquaculturegrith trend has neccessitated  the search for alternative fed ingreadients in the light of the conventional ones whose supply have dwindleed and have become prohibitive.

 Paddy-cum Fish culture in lowland in Myanblock of purba distict ,West Bengal ,India now enjoyed a national Importance for deveolment of socio-economic condition of the rural comunnity

 Aquaculture is an important economics activity in Tripura ,botyh from an economic and nutritional point of view

 This study was cindected to evaluate effect of deferent salinities (0,2,4,6 ppt) on groth and survival of shord tail,Xiphophorus Helleri for 45 days.

 The end product of germ cell matturations is the spermatozoa that the product though a difinite patern in nature that requers a special envirnmental