liquid pig manure (LPM); a mixture of liquid and solid pig manure with 8% TS (LPM + SPM); and a mixture of liquid and solid pig manure with 8% TS, after being anaerobically digested for 27 days at 37 ◦C (MD). The dose of zeolite for each treatment was defined maintaining the same relationship between mgNH3-N gZ− 1 used in the previous factorial experiment