The Effect of Horseradish Powder and Mushroom waste in Fattening Pig Diet on Odorous Compound Concentration from Slurry

고추냉이와 버섯폐배지 첨가 비육돈사료가 슬러리의 악취물질 농도에 미치는 영향

  • Lee, K.H. (National Institute of Animal Science, RDA) ;
  • Hwang, O.H. (National Institute of Animal Science, RDA) ;
  • Yang, S.H. (National Institute of Animal Science, RDA) ;
  • Park, K.H. (National Institute of Animal Science, RDA) ;
  • Lee, J.Y. (National Institute of Animal Science, RDA) ;
  • Jeun, B.S. (National Institute of Animal Science, RDA) ;
  • Ohh, S.J. (Kangwon National University) ;
  • Lee, S.S. (Sunchon National University) ;
  • Yoo, Y.H. (National Institute of Animal Science, RDA) ;
  • Cho, S.B. (National Institute of Animal Science, RDA)
  • Received : 2012.11.06
  • Accepted : 2012.12.05
  • Published : 2012.12.30

Abstract

This study was to performed to investigate the effect of horseradish powder and mushroom waste in fattening pig diet on odorous compound concentration from slurry. Twenty fattening boars [Landrace${\times}$Yorkshire) ${\times}$ Duroc] weighing an average body weight of $78.4{\pm}8.88$ kg were randomly assigned to one of 4 treatments (control, horseradish 0.03%, mushroom waste 0.5%, and combination; horseradish 0.03% + mushroom waste 0.5%). This experiment was a randomized complete block (RCB) design using 5 pigs per treatment with 1 pig per metabolizable cage. Pigs were fed experimental diet (amount proportional to 3% of their body weight) twice a day (09:00 and 16:00) for 7 d after having 14 d adaptation period. Experimental diets were mixed with water by 1:2.5 v/v. Odorous compounds in slurry including acetate, propionate, butyrate, trans fatty acid isomers were not different (P>0.05) among treatments. There was no difference (P>0.05) in the levels of phenol compounds including phenol and p-cresol in slurry among treatments. Concentration of indole was lower (P<0.05) in horseradish group compared with others. Skatole level was highest in control and horseradish group, middle in mushroom waste group, and lowest in combination group (P<0.05). Concentration of indole compounds was lowest (P<0.05) in combination group. Data from our current study suggest that indole compounds in slurry can be reduced by administrating pigs with 0.03% horseradish powder and 0.5% mushroom waste in their diet.

본 연구는 사료에 서양고추냉이 분말 0.03%, 팽이버섯폐배지 0.5% 및 서양고추냉이 분말 0.03%와 팽이버섯폐배지 0.5%의 혼합제를 사료에 각각 첨가한 후 비육돈에 급여하여 분뇨에서 발생되는 악취물질의 농도변화를 조사하였다. 1. 분뇨의 단쇄지방산 농도를 측정한 결과 초산, 프로피온산, 부티르산 및 이성체지방산의 농도는 처리구간에 차이가 없었다(p>0.05). 2. 분뇨의 페놀, p-크레졸 및 이들을 합한 페놀류 농도는 처리구간에 차이가 없었다(p>0.05). 그러나 인돌 농도는 고추냉이 처리구에서 낮았으며(p<0.05), 스카톨 농도는 대조구와 고추냉이구에서 가장 높았고, 고추냉이와 버섯폐배지의 혼합구에서 가장 낮았으며, 버섯폐배지구는 중간이었다(p<0.05). 인돌류 농도는 고추냉이와 버섯폐배지의 혼합구에서 가장 낮았다(p<0.05).

Keywords

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