발효탄수화물 첨가 비육돈사료가 초지환원용 슬러리의 악취물질 농도에미치는 영향 (The Effect of the Addition of Carbohydrate Sources on the Concentration of Odorous Compounds for Recycling of Pig Slurry to Grassland)

서지정보

· 발행기관 : 한국초지조사료학회
· 수록지 정보 : 한국초지조사료학회지 / 33권 / 4호 / 257 ~ 262페이지
· 저자명 : 조성백, 황옥화, 박규현, 최동윤, 양승봉, 김두환, 박성권

초록

This study investigates the effect of fermentable carbohydrate on the concentration of odorous compounds in pig slurry. Four types of pig diet were studied: control, peanut hull(crude fiber 29.87, NDF 44.02%), golden fiber(crude fiber 48.77, NDF 65.88%), and almond hull(crude fiber 44.30, NDF 64.44%). Pigs(average BW 37.0kg) were fed diets that met the Korean Feeding Standard(2012) and their excreta samples were collected from the slurry pits. Levels of volatile organic compounds (phenols and indoles) and volatile fatty acids were analyzed by gas chromatography. Phenol level was the lowest(p<0.05) in golden fiber(33.26 ppm) group and the highest in control(97.29 ppm). The concentration of indoles in the peanut hull(1.27 ppm), almond hull(1.20 ppm), and golden fiber(1.02 ppm) groups was lower(p<0.05) than that of control(1.79 ppm). Levels of short chain fatty acid(SCFA) were lower(p<0.05) in golden fiber (1,319 ppm) and almond hull(1,433 ppm) groups than in control(1,893 ppm). Concentration of branched chain fatty acid(BCFA) in the golden fiber group(74 ppm) was lower(p<0.05) than that of control(98 ppm). Taken together, the concentration levels of phenols, indoles, and VFAs decreased on addition of peanut hull, golden fiber or almond hull to the diet, suggesting that fermentable carbohydrate may contribute to reducing odorous compounds in pig slurry.

영어초록

This study investigates the effect of fermentable carbohydrate on the concentration of odorous compounds in pig slurry. Four types of pig diet were studied: control, peanut hull(crude fiber 29.87, NDF 44.02%), golden fiber(crude fiber 48.77, NDF 65.88%), and almond hull(crude fiber 44.30, NDF 64.44%). Pigs(average BW 37.0kg) were fed diets that met the Korean Feeding Standard(2012) and their excreta samples were collected from the slurry pits. Levels of volatile organic compounds (phenols and indoles) and volatile fatty acids were analyzed by gas chromatography. Phenol level was the lowest(p<0.05) in golden fiber(33.26 ppm) group and the highest in control(97.29 ppm). The concentration of indoles in the peanut hull(1.27 ppm), almond hull(1.20 ppm), and golden fiber(1.02 ppm) groups was lower(p<0.05) than that of control(1.79 ppm). Levels of short chain fatty acid(SCFA) were lower(p<0.05) in golden fiber (1,319 ppm) and almond hull(1,433 ppm) groups than in control(1,893 ppm). Concentration of branched chain fatty acid(BCFA) in the golden fiber group(74 ppm) was lower(p<0.05) than that of control(98 ppm). Taken together, the concentration levels of phenols, indoles, and VFAs decreased on addition of peanut hull, golden fiber or almond hull to the diet, suggesting that fermentable carbohydrate may contribute to reducing odorous compounds in pig slurry.

참고자료

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