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Animal Waste Handling and Disposal in Confinement Production of Swine¹

Purdue University, Lafayette, Indiana 47907

Abstract

Certain assumptions must be made in a symposium paper such as this. Briefly these are as follows: (1) Increasing numbers of swine will be raised in complete confinement, (2) Swine production systems which will require an acceptable waste disposal system will increase, (3) An ideal disposal system permits maximum pig performance, reduces objectionable odors, gases and pollution hazards, prevents disease transmission, is relatively automatic and is economical to operate, (4) The swine producer will need to invest capital into a system which will likely increase the cost of production, (5) Even with the best foreseeable system some residues will accumulate because of incomplete biological degradation.

Confinement Production of Swine. Farmer-producers are becoming larger and more specialized. Recent surveys and estimates are that more than 33,000 producers in the United States market over 500 head annually. One third of these producers market over 1,000 head annually. Of these 133 market in excess of 10,000 head and 1,567 market between 2,500 and 10,000 head (Johnson, 1970).

¹ Presented at a Symposium on Animal Waste Management and Disposal, 62nd Annual Meeting of the A.S.A.S. Pennsylvania State University, University Park, August, 1970.

² Professor and Associate Professor, Department of Animal Sciences.