HERBAGE DRY MATTER YIELD, NUTRIENT COMPOSITION AND IN VITRO GAS PRODUCTION OF MULATO II AND MOMBASA GRASSES AT 30- AND 45- DAY CUTTING INTERVALS

Abstract

The dry matter (DM) yield and nutrient composition of Mulato II and Mombasa grasses were determined at 30- and 45-day cutting intervals (CI). DM yields and plant height of both grasses were greater at 45 d. Crude protein and calcium decreased (P<0.05) with age while phosphorus was lower at 45 d in Mombasa. Fiber fractions increased (P<0.05). Gas production increased over time but started to plateau between 24-48h incubation. Increased yields were achieved but with decreased nutritive value. Harvesting at 30 d is recom­mended for feeding high producing herds. Whereas, delayed harvesting would be suitable for animals requiring less nutrient density.