Table 2. Effect of animal species on the level of the pH and amount of apparent disappearance under same low nitrogen diet in Rusitec fermenters.

Item	Cattle	Yak	SEM	P-value
Effluent, L/d	0.775	0.781	00024	0.776
pH before feeding	6.84	6.82	0.02	0.383
Apparent ruminal digestibility, %
DM	42.2	40.9	1.10	0.245
NDF	68.9	69.6	1.95	0.69
OM	41.9	40.4	1.09	0.192

DM-dry matter; NDF- neutral detergent fiber; OM-organic matter.