Poultry Composting for Improved Biosecurity & Environment. You can compost your regular poultry mortalities in as little as 1 week. . Composting poultry mortalities creates a clean, pathogen and odor free compost. You can then use it as a valuable soil amendment. All that is required is a sufficient amount of a dry carbon source such as dry sawdust to be added to the drum with the mortalities.