Abstract
Various materials can be used as substrate for poultry litter, presenting different probabilities of contamination by Salmonella spp. Considering this variation, we evaluated the viability of transmission of Salmonella Typhimurium by Passeriformes (Manons – Lonchura striata domestica), in Pinus spp. and rice husk, analyzing the time required for contamination of each litter substrate and drinking water, in addition to the occurrence of bird contamination. Two experiments were conducted, in each one there was a circle filled with the inoculated litter substrate (positive) and another sprinkled with sterile solution (negative). After contamination, 49 manons were released in each experiment. Samples of litter, drinking water and organs and body surface (feet) of the birds were analyzed. The different substrates for poultry litter evaluated allowed the transmission of S. Typhimurium to manons, with rice husk determining negative environmental contamination earlier and more continuously. Contamination of body surfaces (feet) contributed to the Salmonella serovar being spread on both types of substrates.
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