Combination of the underutilised legumes Canavalia ensiformis (L.) D.C. and Canavalia ensiformis (L.) D.C. with sorghum: integrated assessment of their potential as conserved ruminant feed
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Abstract
bean (VB) silage from Lima-Orozco et al. (2014) were used to assess the integration of agronomic considerations in an overall evaluation including biomass production, nutritive value and conservation quality. The metabolisable energy (ME) content of the combined sorghum-JB silages was 1.26 times greater than the ME content of pure sorghum silage supplemented with dry beans
from JB. Additionally a greater amount of protein digestible in the small intestine (dCPSI) was observed (62.9 vs 43.5 g/kg DM). It was concluded that the ME content and dCPSI of the sorghum- JB silages are 1.26 or 1.44 times higher than sorghum-JB silage or for pure sorghum silage supplemented with dry beans from
JB. Moreover, a much larger surface is required for the sorghum silage and dry JB alternative. Hence, combined sorghum-JBsilage seemed the best alternative studied here in terms of DM yield, dCPSI and ME supply.
Key words: sorghun, seasonal legumes, silage
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