Feminization of Betta Fish (Betta splendens Regan) Through Embryo Immersion in Estradiol-17β Hormone Solution at the Dosages of 400 µg/I for 6, 12, 18 and 24 Hours

Feed of Siamese fighting fish, Betta splendens, (Regan, 1910) in open pond: live and formulated diets.

The growth rate and percent survival of Betta splendens when submitted to formulated diet and live food treatments are evaluated. The three different diets were used and designated as: formulated diet (basal diet); live food diet (plankton) and mixed diet (formulated diet with plankton). The live food diet contained plankton belonging to an open pond. High mortality was reported with live food ...

Betta Less Motivated: Effects of Fluoxetine on Betta Splendens

Genetics of the Siamese Fighting Fish, Betta Splendens.

ETTA SPLENDENS more commonly known as the Siamese fighting fish has B been popular in aquariums of western Europe and America for over 35 years. Its domestication and consequent inbreeding antedates the introduction into the West by 60 or 70 years. Selection for pugnacity, long fins (see Figure l ) , and bright colors over this long period has produced a number of phenotypes, none of which is v...

Red fish, blue fish: trade-offs between pigmentation and immunity in Betta splendens

Carotenoid pigments are responsible for many examples of sexually attractive red, orange, and yellow coloration in animals and play an important role in antioxidant and immune defenses. Because vertebrates cannot synthesize carotenoids, limited dietary availability may impose a trade-off between maintaining ornamental coloration and health. We used an experimental approach to test the carotenoi...

Virulence of Aeromonas hydrophila in Siamese fighting fish (Betta splendens) and the bacterium susceptibility to some herbal plants

Aeromonas hydrophila was isolated from diseased Siamese fighting fish Betta splendens Regans.  The virulence of A. hydrophiala to Siamese fighting fish was conducted by intraperitoneal injection of two doses of bacterial suspensions with 7.5x107 and 7.5x105 cfu per 0.05 ml. The cumulative mortality was observed in high and low dose groups which showed 98.33 and 20 percent, respectively. Moreove...