Isolation of Tetrahymena pyriformis From Several Infected Pet Fish Species And a Regime For Its Treatment

Abstract

Tetrahymena pyriformis has been firstly isolated from brood Goldfish
(Carassius auratus) Common, Fantail, Ryukin, Veiltail and Moor, Black molly
(Poecilia sphenops), Gourami (Trichogaster trichopterus), red Swordtail
(Xiphophorus helleri), Guppy (Poecilia reticulata), deep Angelfish
(Pterophyllum scalare) and brood Algae eater (Hypostomus plecostomus) in
Iraq. The infected fish suffered from mucus hypersecretion large hyperemic
areas on the skin, and slight shedding of the scales. The incidence percentage of
infection was 100 %. Rising water temperature was up to 29 – 30cْ for one time
and methylene blue was at a concentration of 5 ppm for 24 hours. Sodium
chloride at a concentration of 2 % for one minute and two minutes has no
obvious effect on Tetrahymena pyriformis. Treatment with NaCl at the
concentration of 1% for 20 minutes for three consecutive days achieved the best
results.