• Title/Summary/Keyword: Pig excrements

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Decrease efficiency of Offensive Odor from Pig Excreta by Yeast Strain, Pichia farinosa NASS-2 Isolated from Soy Bean Paste (된장에서 분리한 효모(Pichia farinosa NASS-2)의 돈분 악취감소효과)

  • Yoo, Jae Hong;Park, In Cheol;Kim, Wan Gyu
    • The Korean Journal of Mycology
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    • v.40 no.4
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    • pp.254-257
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    • 2012
  • The different microbial species were isolated from soy bean paste samples. A yeast strain NASS-2 was effective to decrease odor activity on pig excreata was identified as Pichia farinosa based on nucleotide sequences of 18S ribosomal DNA and Internal transcribed space (ITS). The extracellular fraction of P. farinosa NASS-2 was effective to decrease odor activity of pig excrements. Optimal medium component for decreasing order activity on odor material composed of soluble starch 2.0% (w/v) and yeast extract 0.8% (v/v). The decrease of odor material was maximum at $28^{\circ}C$ for 72 hours with pH 5.5. When the P. farinosa NASS-2 culture broth was treated to pig excrements, the removal efficiency was an average concentration with 1.38 ppm of ammonia gas.

Growth and Yield by Livestock Excrements Application in Agrimonia pilosa Ledeb. (가축분 시용에 따른 짚신나물(Agrimonia pilosa Ledeb.)의 생육 및 수량)

  • 이용호;박정민;이성태;최주호;정대수
    • Korean Journal of Plant Resources
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    • v.15 no.3
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    • pp.243-249
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    • 2002
  • This experiment was conducted to find out the effects of livestock excrements application on the growth and yield of leaf, stem and seed in Agrimonia pilosa Ledeb. the results were summarized as follow. In the soil after experiment, P2O5 and K contents were high in order of cattle droping 〈 pig droping 〈 chicken droping treatment. The plant height was increased cattle dropping〈 pig dropping〈 chicken dropping treatment plot. Number of stems was inclined to increase in the plot of 2,000 kg/10a application of chicken dropping and cattle dropping. Number of leaves was also increased 21.8∼51.6% by application 3,000 kg/10a of chicken and cattle dropping, and application 2,000 kg/10a of pig dropping, respectively. Dry weight of aerial part was high in order of 1,000〈 3,000〈 2,000 kg/10a〉control, on occasion 2,000 kg/10a treated, that was highest in the application of chicken dropping. Yield of seeds was also increased to 61% and 86% at the 2,000 kg/10a plot of pig and chicken dropping, respectively. While yield of seeds was increased 50% at the 3,000 kg/10a application of cattle dropping. Flowering ratio was 49.1% in control, 55.6, 58.9 and 68.3% in cattle, pig and chicken dropping with 2,000 kg/10a, respectively, on June 22. Flowering ratio was the highest in the plot of chicken dropping with 2,000 kg/10a.

Screening and Isolation of Ammonia Removal Microorganism for the Improvement of Livestock Environment (축산환경 개선을 위한 암모니아 제거 미생물의 탐색 및 분리)

  • Lee, So-Jin;Lee, Eun-Young
    • Microbiology and Biotechnology Letters
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    • v.37 no.4
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    • pp.408-412
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    • 2009
  • A study on the screening and isolation of microorganism was performed for the removal of main malodor, such as ammonia, produced from the livestock farm. The main malodor components in livestock farm are ammonia, volatile fatty acids, sulfur compounds and trimethylamine. Damages to man and livestock were originated from malodors mainly due to ammonia, and thus ammonia reduction experiments were performed. Sludge of sewage treatment plant was inoculated in the sesame dregs culture, from which ammonia gas was produced. An aerobically grown, pure cultured isolated from the 10th enrichment culture was analyzed by 16S rRNA sequencing and identified as Alcaligenes sp. NS-1. This strain NS-1 precultured in the sesame dregs was found to remove ammonia gas with an efficiency of approximately 99-100% at an average concentration of 40 ppmv of ammonia gas. When the strain NS-1 sprayed to pig excrements, the removal efficiency at an average concentration of 100 ppmv of ammonia was approximately 60% after 16 hr.