experiments. At the highest free ammonia levels (between 1000 and 1200 mg/kg) a reduction of methane production of only 25% was detected. Best results were achieved at free ammonia levels between 400 and 700 mg/kg
experiments. At the highest free ammonia levels (between 1000 and 1200 mg/kg) a reduction of methane production of only 25% was detected. Best results were achieved at free ammonia levels between 400 and 700 mg/kg