Abstract: Quail raising is said to be the business venture of those with limited capital but who look for high returns in a short period. A feeding trial to assess the growth performance and economic benefits of Japanese quails supplemented with varying levels of fermented kangkong juice through the drinking water was conducted using 120 female Japanese quails at the Department of Animal Science-College of Agriculture and Food Science, Visayas State University, Visca, Baybay City, Leyte, Philippines from January to February 2016. The Japanese quails were randomly assigned to four treatments and replicated three times with ten birds per replication laid out in a Completely Randomized Design set-up.