Abstract
In order to control excessive humidity of swine manure and to obtain a stabilized material, pine sawdust was used as bulk material. Several doses of pine sawdust were evaluated: 1.0, 1.5 and 2.0 m 3 . Raw manure was spread and maintained in rest for five days. Piles of this material were constructed under aerobic conditions and periodically turned. At the end of the assay all treatments showed a decrease of the salinity. The high contents of organic matter and the C/N ratio of these mixtures, and the decrease of the humidity of the bulk material allows assuming that this material could be reused with new charges of swine manure. The end product obtained has appropriate characteristics in terms of ammonium/nitrate ratio for establishing cultures without restrictions and the fecal coliform levels decrease drastically.
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