| airborne microflora in quebec dairy farms: lack of effect of bacterial hay preservatives. | pediococcus pentosaceus is a lactic-acid producing bacterium inoculated in hay to prevent hay deterioration. this study sought to verify the effect of this treatment on the barn microenvironment. air samples were obtained from 19 barns using bacterial hay treatment and from 18 control barns with six-stage andersen samplers and all-glass impingers. appropriate culture media were used for the recovery and identification of microorganisms. endotoxins were measured with chromogenic limulus amoebocyt ... | 1999 | 10028620 |