Composting is becoming a popular way to handle livestock mortalities. The co-compost material, sometimes referred to as carbon source or bulking agent, is used to cover the mortalities and provide a microenvironment for bacteria. The co-compost material should be readily available, inexpensive, and free of pesticide residues. Some commonly used co-compost materials are turkey brooder litter, poultry litter, hoop barn manure, corn stalks, ground corncobs, wood shavings, and wood chips. Use of a compost thermometer is helpful to be sure that the process is occurring properly. Temperatures in the 110 to 150^o F range indicate decay that will be fast and odor free whereas cold temperatures indicate problems.