Abstract

Livestock and poultry wastes could be a significant source of energy if conventional energy prices continue to rise. This study estimates the economically recoverable energy potentially available from livestock and poultry wastes in the Southern United States for the base year 1980 with projections for 1990. Anaerobic digestion of dairy cow, hog, fed beef and laying hen manures could have produced 582 × 10 6m 3 of methane gas in 1980 with little change projected for 1990. Direct burning of litter from broilers, turkeys and pullets could have resulted in 11·0 × 10 12 kcal in 1980 and 14·8 × 10 12 kcal in 1990. The total potential value of biomass energy from these enterprises ranged from $141 to $446 million in 1980 and $340 to $1.08 billion in 1990.

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