AMERICAN RESEARCHERS DESIGN PIG DIET TO CUT MANURE SMELL
August 1st, 2006
BY MONICA DOBIE
RESEARCHERS from the USA's Agricultural Research Service have developed methods to lessen odour-causing compounds in pigs' manure, a constant environmental problem. Cutting pigs' protein intake by using less soybean meal and balancing diets with crystalline amino acids, reduces the stench of manure and pig flatulence: a 1% reduction in dietary crude protein resulted in pigs emitting 8-10% less ammonia, which makes slurry smell bad. Also, changing pig-diet dietary fibre to varieties more easily digested produces volatile fatty acids cutting pig ...
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