| associations between the level of biosecurity and occurrence of dermanyssus gallinae and salmonella spp. in layer farms. | salmonella and the poultry red mite (dermanyssus gallinae) remain very challenging diseases for the poultry industry worldwide because of the inefficiency of implementing and integrating eradication and control programs, which results in very high economic losses to the poultry industry. the aim of this study was to determine the association between biosecurity levels in layer farms and the occurrence of both d. gallinae and salmonella spp., as well as the relationship between d. gallinae infest ... | 2016 | 27309287 |