Use este identificador para citar ou linkar para este item: http://repositorio.ufla.br/jspui/handle/1/15303
Título: Correlações entre número de perfilhos, índice de tombamento, massa dos componentes morfológicos e valor nutritivo da forragem em pastos diferidos de capim-braquiária
Título(s) alternativo(s): Correlations between the number of tillers, falling index, morphological component mass and nutritional value of forage in deferred Urochroa decumbens pastures
Palavras-chave: Categoria de perfilhos
Período de diferimento
Período de pastejo
Pasto diferido - Valor nutritivo
Deferring period
Grazing period
Number of tillers
Data do documento: Mar-2010
Editor: Sociedade Brasileira de Zootecnia
Citação: SANTOS, M. E. R. et al. Correlações entre número de perfilhos, índice de tombamento, massa dos componentes morfológicos e valor nutritivo da forragem em pastos diferidos de capim-braquiária. Revista Brasileira de Zootecnia, Viçosa, MG, v. 39, n. 3, p. 487-493, Mar. 2010.
Resumo: The objective of this study was to evaluate correlations between the structural characteristics and nutritional value of different U. decumbens cv. Basilisk pastures. The experiment was carried out in a split-plot design following a randomized block design with two replications. The treatments were combinations among the different pasture periods (73, 103, 131 and 163 days) and the grazing periods (1, 29, 57 and 85 days). The green leaf blade matter (GLB) correlated positively with the percentages of crude protein (CP), potentially digestible neutral detergent fiber (PDNDF) and potentially digestible dry matter (PDDM), but correlated negatively with neutral detergent fiber (NDF) and indigestible neutral detergent fiber (INDF). Dead stem (DS) correlations were inverse to those obtained for green leaf blade. For vegetative tillering (VT), positive correlations were found with CP and PDDM; negative correlations were found for NDF and INDF of the forage. Dead tiller (DT), correlated positively with NDF and INDF of the forage and negative association with the CP, PDNDF and PDDM rates. The falling index (FI) correlated negatively with the number of VT and correlated positively with the number of reproductive tillers (RT) and dead tillers (DT). The falling index also correlated positively with the NDF and INDF rates and negatively with CP and PDDM. The structural characteristics of the different pasture were associated to their nutritive value. Management actions which result in a reduction in the dead stem matter and the numbers of dead tillers and reproductive tillers contribute to improve the structure and nutritional value of the different pasture.
URI: repositorio.ufla.br/jspui/handle/1/15303
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