Composting is a biological heating process that results in the natural degradation of Composting is a biological heating process that results in the natural degradation of organic resources (such as poultry carcasses) by microorganisms. Composting has been successfully used throughout the United States for nearly two decades to control outbreaks of avian influenza. Composting can be effective with most bird types and poultry house designs.organic resources (such as poultry carcasses) by microorganisms. Composting has been successfully used throughout the United States for nearly two decades to control outbreaks of avian influenza. Composting can be effective with most bird types and poultry house designs.