Inclusion of triturated sugarcane in digestors supplied with manure of beef cattle feed.

The objective of this study was toevaluatethe effect of the co-digestion of triturated sugarcane with beef cattlerfeddlotmanure in continuous digestorsin the amount and quality of biogas and biofertilizer. To do so, the work was divided in three steps. The first and the second part lasted30 days each and evaluated the effect of the additionof 7% of triturated sugarcane in agreement with the followingtreatments:treatment, the digestors were supplied with a mixture of 0,250 kg of manure and 1,750 kg of water ;treatment 2, the digestors were supplied with a mixture of 0,250 kg of manure, 1,610 kg of water, and 0,140 kg of triturated sugarcane. To The third period lasted 30 days and evaluated the effect of adding 3.5% of sugarcane crushed. The data analyses was performed with randomized designusing SAS program with level of significance of 5%. The digesters with sugarcane produced in the first period respectively 0.79, 0.0127, and 0.102 mof total production, of biogas production per kilogram of substrate, and of total production per kilogram of manure versus 0.5, 0.0081, and 0.065 mfrom the control treatment, respectively..In the thirdperiod,each variable had a total production of 0.76, 0.123, and 0.98 mand the control treatment yielded 0.51, 0.065, and 0.0082 m.In the second period,the total production per kilogram of solidand of volatile solids added were higher in the digesters without sugarcane (0.0093 and 0.438 m3) when compared to the digesters that had additionof 7% of cane(0.271 and 0.336 m3).