In vitro ruminal degradability of silages of savoy grass with different levels of inclusion of passion fruit peel

Abstract

The investigation had as objective to evaluate the composition and degradabilidad ruminal in vitro of the dry matter, organic matter and inorganic matter of the ensilajes of grass saboya with the treatments T1: grass saboya 90%+ passion fruit peel 10%; T2: grass saboya 80%+ passion fruit peel 20%; T3: grass saboya 70%+ passion fruit peel 30% and T4: grass saboya 60%+ passion fruit peel 40%, it was used the microensilaje (Micro- silage PVC of 3 provided kg of capacity of a valve bunsen and mechanism of efluentes extraction) method and the degradation technique in vitro with the incubation system DAISY II, using the liquid ruminal of bovine brahman of 500±25 kg of weight average. A Design was applied Totally at random with (DCA) six repetitions. The level of passion fruit inclusion improved the content of nutritious in the silage, increasing the organic matter, the gross protein and the gross fat and diminishing the fiber fractions, the lignina content, calcium and match don’t present changes. The degradabilidad of the dry matter, organic matter and inorganic matter was superior (p <0.05) with the highest level in inclusion of the by-product (T4). Finding an increment of these indicators regarding the increase of the level of passion fruit peel. The increment of the level of inclusion of passion fruit peel was directly proportional in the degradation kinetics, indicating better degradation efficiency (p <0.05) in the silage with 40% of inclusion of the by-product regarding the time of incubation, in most of fractions, peel improves the composition and degradation in silage of grass Saboya.