Effect of dried distiller’s grains (DDG) with or without red cover hay (RC) compared with a pasture-only control on pH decline and NH₃ accumulation in <i>ex vivo</i> fermentations of ground corn, hay or DDG by rumen fluid (RF) or bacterial cell suspensions (CS).

Effect of dried distiller’s grains (DDG) with or without red cover hay (RC) compared with a pasture-only control on pH decline and NH3 accumulation in ex vivo fermentations of ground corn, hay or DDG by rumen fluid (RF) or bacterial cell suspensions (CS).本研究考察了添加红覆盖干草（red cover hay, RC）或未添加红覆盖干草的干酒糟（dried distiller’s grains, DDG），相较于仅牧草对照组，对以瘤胃液（rumen fluid, RF）或细菌细胞悬液（bacterial cell suspensions, CS）作为发酵接种物时，粉碎玉米、干草或干酒糟的体外发酵体系中pH值下降与氨（NH3）积累的影响。