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Revista mexicana de ciencias pecuarias
On-line version ISSN 2448-6698Print version ISSN 2007-1124
Abstract
HERNANDEZ-MORALES, Jahdai et al. Chemical composition and in vitro degradations of pods and leaves of legumes trees of Mexican dry tropic. Rev. mex. de cienc. pecuarias [online]. 2018, vol.9, n.1, pp.105-120. ISSN 2448-6698. https://doi.org/10.22319/rmcp.v9i1.4332.
Pods and leaves of legumes trees are used as feed supplements, these are used to diminish the deficiency of nitrogen present in pastures in the dry tropic. The objective was to characterize the chemical composition and the in vitro degradations of pods of Leucaena leucocephala, Enterolobium cyclocarpum, Samanea saman, Acacia cochliacantha, Guazuma ulmifolia and leaves of L. leucocephala and G. ulmifolia. Dry matter, crude protein (CP), neutral detergent fiber (NDF), acid detergent fiber (ADF), dry matter degradation (DMDEG), neutral detergent fiber degradation (NDFDEG), volatile fatty acids, ashes and total concentration of bacteria, were determined. The experimental design was completely randomized. The pod of E. cyclocarpum (19.50 %), the pods (19.83 %) and leaves (21.57 %) of L. Leucocephala had the highest content of CP. The E. cyclocarpum pod presented 28.38 % of NDF. The leaf of L. leucocephala (24.22 %) and the pods of S. saman (25.06 %) and E. cyclocarpum (20.40 %) had the lowest contents of ADF (P<0.05). E. cyclocarpum (73.06 and 38.68 %) and S. saman (66.01 and 35.86 %) pods quantified the highest DMDEG and NDFDEG (P<0.05). Therefore, the pods of E. cyclocarpum and S. saman are a viable alternative for feeding ruminants in the dry tropic given their chemical and fermentative characteristics.
Keywords : Legumes; Bromatological; Degradation; Dry tropic; Fermentative; Supplementation.