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Abstract
Foroughbackch, R., Ramirez, R.G., Hauad, L.A. and Alba-Avila, J., García-Castillo, C.G. and Morales-Rodriguez, R. 2001. Dry matter, crude protein and cell wall digestion of total plant leaves and stems in Llano buffelgrass (Cenchrus ciliaris). J. Appl. Anim. Res., 20: 181–188.
To estimate and compare seasonally, the chemical composition and in situ digestibility of nutrients in total plant (TP) leaves (L) and stems (S) of Llano buffelgrass (Cenchrus ciliaris L.), plants were harvested from a two-ha pasture of Martin, N.L. County, Mexico during fall (1998), winter, spring and summer (1999). The in sacco technique was used to measure the rate and extent, of digestion of dry matter (DM), crude protein (CP) and cell wall (CW) of TP, L and S, using rumen cannulated sheep. Effective degradabiiity of DM (EDDM), CP (EDCP) and CW (EDCW) was also estimated. Crude protein was significantly higher and CW significantly lower in summer than in other seasons. Moreover, lignin was significantly lower in, summer than in other seasons. Effective degradability DM, EDCP and EDCW were also significantly higher in summer. In all seasons, L fraction resulted with higher nutrient, digestion than S fraction. It is recommended that only during the summer season livestock can graze Llano buffelgrass because of its high nutritional quality.