Efecto del periodo de recuperación en la producción y calidad nutricional de algunas especies forrajeras

Abstract

The ability of the forages to recover from being cut, allows to design management strategies, therefore different recovery periods in the dry and rainy season were evaluated in Vicia sativa L., Avena sativa L., Trifolium repens L., Trifolium pratense L., Medicago sativa L., y Dactylis glomerata L. in Boyacá (2.700 masl) in a completely random design, with a 4 x 6 factorial arrangement that corresponded to four recovery periods (25, 30, 35 and 40 days) and six forages. The variables evaluated were production of dry matter (MS), height, nutritional quality, and availability of N, Ca and P in the soil at the beginning and end of the test. The data was analyzed with Anova and the Tukey test (P 0,05). It was observed that forage production (DM) differed in all species between recovery periods and protein content only in forage oats, the other variables did not change statistically. It is concluded that the optimal cutting time is 40 days for red clover, Vicia and oats, 35 days for white clover and 30 days for cocksfoot and alfalfa. (English) [ABSTRACT FROM AUTHOR]