Swine manure discharged from pigery emits various odorous compounds. The most common method to reduce such odors is adding feed additives to swine feeds. However, whether the effects of such methods are truly effective are controversial. This research contrasts the aldehyde compound emission characteristics and removal effects from a treatment group, which were given feeds added with feed additives, to a control group, which were given feeds without feed additives. Sixty swine of age 26~28 days were evenly divided into six sections within an incubator type pigsty - each section contained ten weaners. Five types of feed additives, either currently in the market or in development were supplied. Gases sampled from the headspace in the odor producing reactor were analyzed by GC. Major malodorous compounds were estimated by the concentrations and threshold values from the detected components. Since 95.3% of the odor comes from isobutyraldehyde out of six types of aldehyde compounds (acetaldehyde, propionaldehyde, isobutyraldehyde, n-butyraldehyde, i-valeraldehyde, n-valeraldehyde), it can be regarded as the most critical compound contributing to pigsty odor. Aldehyde compounds showed statistically significant correlation with elimination of sulfide compounds and trimethylamine

ABSTRACT
요약문
1. 서론
2. 재료 및 방법
3. 실험 결과 및 고찰
사사
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