Comparison of Probiotic Diet and Commercial Diet on the Growth and Survival of Genetically Modified Zebrafish (BrachydanioRerio)

Abstract

Brachydaniorerio is a widely available species of zebrafish, which is a popular fish in aquarium. It is also an important species which are used for genetic research. The study was carried out to check the effects of probiotic diet and commercial diet on the growth and survival of Brachydaniorerio. The experiment was setup with one as a probiotic diet group and other with commercial diet group (Control group).The study was conducted in two aquariums each having 10 individuals of Brachydaniorerio. Each fish was measured for weight every 8 days and the wright was recorded. The study was conducted for 2 months; and the results showed that the group which was given Lactic acid bacteria culture and yeast (50 mg of lactic acid bacteria for 1st month and 50 mg of yeast for 2nd month) as well as 30 mg of commercial food. The weight gain (0.42gr), specific growth rate (1.03gr) and survival rate (50%) were recorded, whereas, the lowest weight gain (0.25gr), specific growth rate (1.39gr) and survival rate (30%) were measured for the group which was given a commercial diet (50 mg).