| ONE: Effects of cysteamine on rumen metabolism of goats and in vitro fermentation of rumen microorganism Part I Four male goats with permanent rumen fistulae were used to study the effect of cysteané»±e (20mg kg~?BW added to food everyday, 14 days) on ruminal fermentation and serum hormones. Results showed that the concentrations of NH3-N increased by 39.7%(p<0.05), MCP increased by 44.8%(p<0.05). TVFA of the rumen fluid was 11.3% higher (p<0.001), Propionate % increased by I .7,%(p<0.05). GH increased by 85%(p |