Dry matter and fiber fraction degradability of sugar cane treated with calcium oxide or sodium hydroxide
Abstract
The objective was to evaluate the parameters of ruminal degradation of dry matter (DM) and the constituents of the cell wall of sugar cane treated with sodium hydroxide (NaOH) or calcium oxide (CaO) by in situ technique. Three crossbred steers were used, with rumen cannulas, which were incubated in nylon bags containing sugar cane treated with NaOH or CaO, in treatments: Sugar cane in natura; Sugar cane treated with 2.25% NaOH; Sugar cane treated with 2.25% of CaO. The doses of NaOH and CaO were applied based on natural material (weight/weight) of sugar cane and corresponded to 8.5% based on DM, with constant homogenization within the polyethylene buckets. A great and effective potential degradability was observed for all components of the cell wall of sugar cane treated with 2.25% NaOH, compared to in natura treatment, with 2.25% of CaO. To degradability of dry matter and fiber fraction of sugar cane, we observed higher rates of degradation in the treatment with 2.25% NaOH, at all periods, followed by treatment with 2.25% of CaO and in nature. Therefore, the chemical treatment of sugar cane with 2.25% NaOH promotes more effective and potent degradability of dry matter and fiber fraction, suggesting the possibility of a better utilization of nutrients.Downloads
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Published
2009-09-25
Issue
Section
Animal Nutrition
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Todo o conteúdo deste periódico, exceto onde está identificado, está licenciado sob uma Licença Creative Commons