| To mitigate odor and gas emission concern, different management practices and treatment technologies are available. In this study, the effectiveness of the Digest3+3© microbial additive was evaluated for reducing odor and pollutant gas emission from a swine gestation-farrowing operation in North Dakota. In this experiment, one of the deep pits in the facility was left untreated (GC) and the other deep pit was treated (GT) with the Digest 3+3 (22.68 kg/month). Similarly, shallow pits in one of the farrowing units were treated (FT) with the microbial additive, while another unit was untreated (FC as the control). Air samples were collected from exhaust fans using a vacuum chamber and Tedlar bags. Odor detection threshold values were determined using a... |
