The experimentwas carried out to evaluate the fermentation characteristics, Listeriasp. and molds occurrence on Tifton 85 silage no wilted, wilted for one and twohours and no wilted with or without citrus pulp (5.0 % of fresh forage). Thesamplings were taken at the opening of the silos (80 days after ensiling), 15,and 30 days after air exposition to evaluated dry matter (DM) content, chemicalchanges (pH, ammonia N, organic acids) and Listeria sp., and molds occurrence.Data were analyzed according to a randomized block design in split plot scheme,considering the silage on the plots, and periods of air exposure on the splitplot, with four replications. Low contents of organic acids and ammonia N dueto the high silage DM content that promotes low formation of fermentable productsand high pH values was observed. The occurrence of Listeria sp. was observedin 65.6% of the silage samples at the opening of the silos and, from them 10%of these were Listeria monocytogenes. The silages showed poor aerobicstability, having been registered higher amount of Penicillium, Fusariumand Pithomyces occurrence, along the air exposition periods.
