논문 상세보기
pp.289-295
The objective of this experiment was to evaluate the effect of Chamaecyparis obtus extract to reduce odor emissions released from the swine feeding operations. Finisher pigs [Landrace × (Yorkshire × Duroc)] with an initial body weight averaging 50 kg were housed separately in two rooms with eighty eight pigs in each room at a swine feeding operation site. C. obtus extract was sprayed in the room by ceiling sprayer for one minute at twice per day during two months. Concentrations of odorous compounds from air in the room of the swine feeding operation were analyzed at four times during two months. Levels of butyric acid, valeric acid, i-butyric acid, ivaleric acid, skatole, methylmercaptan, and trimethylamine tended to decrease in C. obtus extract spray treatment group compared to the non-spray treatment group (P > 0.05). Odor activity values of butyric acid, valeric acid, skatole and trimethylamine were higher than other odorous compounds and decreased by 72%, 76%, 54% and 20%, respectively, in C. obtus extract spray treatment group compared to the non-spray group. Taken together, C. obtus extract showed an odor reducing capability in the air of a swine feeding operation suggesting that it possesses anti-bacterial properties as well as having a dust removal and masking effect.
2. 재료 및 방법
2.1 시험 설계, 시험축 및 사료급여방법
2.2 편백나무 추출액 살포방법
2.3 냄새물질 분석용 공기 시료채취 방법
2.4냄새물질 분석 방법
2.5 통계 분석 및 냄새기여도 계산
3. 결과 및 고찰
3.1 편백나무 추출액이 돈사 내부 공기 중의 휘발성지방산 농도에 미치는 영향
3.2 편백나무 추출액이 돈사 내 페놀류 및 인돌류 농도에 미치는 영향
3.3 편백나무 추출액이 돈사 내 황화합물, 트리메틸아민및 암모니아 농도에 미치는 영향
4. 결 론
감사의 글
References
