Growth Response and Carcass Yield of Male Japanese Quail Fed Diets Contained Fermented Rubber (Hevea brasiliensis) Seed Meal

This paper discusses the previous research on the use of fermented rubber seed meal using tempeh yeast (Rhizopus oligosporus) (FRSM) given to male quail from 1 to 5 weeks of age on the growth performance and carcass production. The research used a Completely Randomized Design (CRD) experimental method using about 260 male quail aged 0-5 weeks divided into 4 treatment groups with the level of giving fermented rubber seed meal (FRSM) using different fermented yeast, namely R0= feeding without FRSM (control), R1= feeding of 4% FRSM, R2 = feeding of 8% FRSM, and R3= feeding of 12% FRSM. Each treatment was repeated 5 times, making 20 units of 13 male quails. The parameters observed were feed consumption, body weight gain, feed conversion, and carcass production. Rubber seed fermentation in this research showed that rubber seeds' cyanide acid (HCN) content was reduced from 158.64 ppm to 17.84 ppm. The experimental results showed that adding fermented rubber seed meal to the diets did not decrease feed consumption or prevent weight gain, feed conversion, final body weight, carcass weight, and carcass percentage. This research concluded that adding fermented rubber seed meal up to 12% did not harm male quail's growth performance and carcass yield.