Resumen

FLORES ANCIRA, Ernesto et al. Effect of fire on production and quality of natal grass in Aguascalientes. Rev. Mex. Cienc. Agríc [online]. 2016, vol.7, n.6, pp.1271-1281. ISSN 2007-0934.

In Calvillo, Aguascalientes, Mexico, from 2012 and 2013, the effect of fire (burned Q and without burning SQ treatments) on production and nutritional quality of natal grass in three phenological stages was evaluated: growth C, maturity M, and latency L. The fire was applied in April 2012 to 16 m2 plots. During 2012 and 2013 forage production (dry basis) was different (p≤ 0.05) with 168.7, 393.7 g m2 and 53.9, 192.7 g m2 for Q and SQ treatments respectively. Crude protein was similar between treatments (p≥ 0.05) but different (p≤ 0.05) between C, M, L stages, with a total of 13.3, 5.2, 5.6% and 12.6, 4.6, 3.2% respectively. The digestibility of dry matter (DISMS) was different (p≤ 0.05) between treatments Q and SQ and between stages of C, M, and L, with a total of 61.6, 46.0, 48.3% and 50.3, 42.5, 44% respectively. Neutral detergent fiber (FDN) was different (p≤ 0.05) between stages C, M, and L, but not between Q and SQ with values 67.1, 76.5, 78% and 66.4, 76.3, 79.6% respectively. The acid detergent fiber (FDA) showed differences (p≤ 0.05) between stages but not between treatments with a total of 35.8, 50.6, 57.4%, and 33.2, 54.6, 56.3% respectively. The fire increased both production and quality of natal grass forage and could be used as a strategy for ecological management in areas of extensive grazing invaded with natal grass.

Palabras llave : Melinis repens; burning; fodder; nutritional value.

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