Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Effect of Manure Additives Mixed with Probiotics and Zeolite on Harmful Gas Production Released From Pig Slurry

생균제와 제올라이트를 혼합한 축분첨가제가 돈분 슬러리에서 발생하는 유해 가스 발생량에 미치는 영향

  • Jang, Woo-Whan (Department of Agricultural Economics, Kyungpook National University) ;
  • Choi, In-Hag (Department of Companion Animal & Animal Resources Science, Joongbu University)
  • 장우환 (경북대학교 농경제학과) ;
  • 최인학 (중부대학교 애완동물자원학전공)
  • Received : 2021.12.23
  • Accepted : 2022.01.03
  • Published : 2022.01.31
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Abstract

The aim of this study was to investigate the effect of manure additives mixed with probiotics and zeolite on harmful gas production generated by pig slurry. A total of 180 crossbred pigs ([Yorkshire × Land race] × Duroc, live weight 70±3.21 kg) were allotted to a completely randomized design with 3 treatments and 3 replications (20 heads per replicate). The treatments consisted of 0% (control), 0.05% (T1), or 1% (T2) of manure additives mixed with probiotics and zeolite. Manure additives were added weekly to pig slurry pits (2 m × 4.5 m × 1.2 m) on a volumetric basis. For ammonia measured at both 10 cm and 90 cm above the pig slurry pit, a statistical significance (p<0.05) was found in probiotics and zeolite-treated manure additives at weeks 1 - 3, except for week 0. In addition, hydrogen sulfide levels measured at 10 cm above the pig slurry pit were not affected by the manure additive at weeks 0 and 1, but showed a significant statistical difference at weeks 2 and 3 (p<0.05). Therefore, supplementing pig slurry with 0.05% and 0.1% manure additives mixed with probiotics and zeolite was found to be effective in reducing environmental pollution in pig facilities.

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