Effects of processing with gamma ray, sodium hydroxide and calcium oxide on gas production parameters and digestibility of soybean straw

This research was conducted to determine the effect of gamma ray (GR) (100 and 150 kGy), sodium hydroxide (50 g/kg DM) and calcium oxide (160 g/kg DM) on gas production parameters and in vitro digestibility of soybean straw. All treatments, except for the gamma ray (100 and 150 kGy) did not have gas production up to 4 hours after incubation and there was a lag time. From 8 to 96 hours of incubation, the highest gas production was observed in sodium hydroxide gamma ray (100 and 150 kGy) treatments (P0.05), but increased gas production potential (b) (P