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Ruminal degradability of neutral detergent fiber of Cynodon spp. grasses at four regrowth ages

Oliveira, Euclides Reuter de; Monção, Flávio Pinto; Gabriel, Andréa Maria de Araújo; Góes, Rafael H. de T. e Buschinelli de; Lempp, Beatriz; Moura, Lais Valenzuela.
Acta sci., Anim. sci; 36(2): 201-208, 2014.
Artigo em Inglês | VETINDEX | ID: vti-32138

Resumo

The aim of this work was to determine ruminal degradation of neutral detergent fiber of grasses of the genus Cynodon, harvested at four cutting ages. It was used a randomized block design, with five treatments arranged in a split plot, the five evaluated genotypes: Tifton 85, Jiggs, Russel, Tifton 68 and Vaquero; were the plots and ages of cutting were the subplots: 28, 48, 63 and 79 days. By adding one day in the cutting age, there was a linear reduction in the effective degradability of neutral detergent fiber of blade and stem of 0.16 and 0.18%, respectively. The increase in the cutting age had a linear and positive influence on the undegradable neutral detergent fiber with daily increments for leaf and stem of 0.12 and 0.18%, respectively. At the 28 regrowth day, all genotypes showed higher content of potentially degradable insoluble fraction, effective degradability and lower undegradable fraction of the neutral detergent fiber of blade and stem in relation to other ages, in this way this interval is recommended for cutting management.
Biblioteca responsável: BR68.1