In vitro degradability profile of sorghum from mutation radiation breeding

Sorghum was cereal crop that has potential used as forage in Indonesia. National Nuclear Energy Agency of Indonesia (BATAN) as a research institute has released three sorghum varieties that can be used as animal feed. These varieties were Pahat, Samurai 1 and Samurai 2. Digestibility characteristics of mutant sorghum varieties need to be observed to determine the digestibility profile. This study was conducted to evaluated in vitro digestibility profile from mutation radiation sorghum produced by BATAN. Completely Randomized Design with five treatments and four replications was applied in this experiment. The treatment were N (Numbu as control varieties), P (Pahat), S1 (Samurai 1), S2 (Samurai 2) and GHP 1 (Food Mutant Lines 1). Variables measured were nutrition content, in vitro digestibility profile and gas production characteristics. Results showed that sorghum from mutation radiation breeding (P, S1, S2 and GHP 1) had lower NDF and ADF than control variety. The highest optimal gas production (a+b) was produced by Pahat sorghum (54.47 %) but not significantly different with control and GHP 1. The GHP 1 sorghum produced higher in vitro organic matter degradability (IVOMD) (55.31 %) than control variety (52.41 %) (P<0.05). GHP 1 as sorghum from mutation radiation potentially used as forage. It was represented from in vitro digestibility evaluation profile in form of high optimum gas production and IVOMD. (author)