ABSTRACT
Inedible by-products in the poultry industry consist of water, manure, dead birds, feathers, blood, offal, and eggs, including cracked eggs, those with blood spots, rots, and those which did not hatch. In those areas where there was not a sufficient amount of raw material to establish a poultry by-product processing plant, it was generally utilized along with cattle and hog by-products. Disposal of poultry manure is probably the most inefficient and costly operation in the production and marketing of poultry. A problem peculiar to poultry manure is that the nitrogen is too quickly available so that if care is not taken in applying it, burning occurs. E. M. Rahn reported that poultry manure needed no supplement when applied to tomatoes, cantaloupes, watermelons, and lima beans. Several experiments have been conducted to determine the value of poultry manure as feed for livestock. Both the poultry manure and litter have some nutrient value.
