Effect of different study factors on the in situ ruminal degradability of ammonified sugarcane bagasse
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Abstract
This study evaluated the in situ degradation of ammonified sugarcane bagasse silage as cattle feed during the dry season. Samples of fresh sugar cane bagasse (Saccharum sp) were randomly taken from the "Puro Bravo" farm, located in the "La Soledad" site, Junin canton, province of Manabi. A Completely Randomized Design with 3x2 Factorial Arrangement was used, where Factor A was represented by the different levels of urea inclusion (0, 3 and 5 %) and Factor B, fermentation times of sugarcane bagasse (30 and 44 days), each combination of these factors consisted of three replications. The best treatment is 5% urea, day 30 of fermentation, both in bromatology and degradability, and the degree of association of degradability at different times was related to the nutritional value of the ammonified bagasse, which is related to degradability and fiber. Ammonification with urea improved nutritional values, characterized by increasing crude protein and decreasing NDF, FDA and LDA as urea levels increased. The differences were highly significant (P < .0001), indicating that the results were highly significant for each of the variables studied, which allowed relating the degree of association of degradability at different times with the nutritional value of the ammonified bagasse silage.
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