Avaliação de silagens de cana de açúcar in natura e com aditivos, para alimentação de ruminantes

Abstract

The objective of this study was verifying the efficiency of different additives on chemical composition, pH, ethanol production, content of Fatty Acids Volatile - AGV 's, nutritional losses during fermentation, changes in fibrous fractions, in the levels of non-fibrous and total carbohydrates during the sugarcane silage fermentation process with different additives. The treatments consisted of control (no additive), corn meal, at 10% of natural matter; molasses, at 10% of natural matter, urea, at 2% of natural matter and microbial inoculant for sugarcane silage (Lactobacillus plantarum - Kera -Sil ®) in a proportion of 2 g/L of water using 2 liter solution per ton of ensilage. The experimental design was a completely randomized design with 5 treatments and 5 replications. The urea treatment provided the best preparation of silage, taking into account the pH and bromatological composition when compared to silages made with the other tested additives and the control. The sugar cane silage showed loss of 5.86 % on average of dry matter, not differing with others additives used. There was an increase in crude protein content when used urea. It did not have a difference between the treatment for fiber losses in neutral detergent, total digestible nutrients and ashes