Acta Agriculturae Zhejiangensis ›› 2021, Vol. 33 ›› Issue (8): 1552-1564.DOI: 10.3969/j.issn.1004-1524.2021.08.22

• Review • Previous Articles    

Application of microbial deodorant in livestock and poultry farms

MA Shixia1,2(), BAI Qianwen1,2, ZHOU Wei1,2, MA Xianying1,2, TIAN Pan3, CAI Xindong1,2, FAN Sisi1,2, WANG Xiaohang1,2, MA Zhongren1, CHEN Shien1,2, SUN Na1, DING Gongtao1,*()   

  1. 1. Biomedical Research Center, Northwest Minzu University, Lanzhou 730030, China
    2. College of Life Sciences and Engineering,Northwest Minzu University, Lanzhou 730124, China
    3. Lanzhou Institute of Biological Products Co,.Ltd., Lanzhou 730046, China
  • Received:2020-11-10 Online:2021-08-25 Published:2021-08-27
  • Contact: DING Gongtao

Abstract:

The odor gases such as NH3, H2S and volatile organic compounds (VOCs) emitted during livestock and poultry breeding cause serious harm to the environment, human and animal health. In this paper, the main components and sources of malodorous gases in livestock and poultry farms, mechanism and current research progress of microbial deodorants were summarized, and mechanism of microbial degradation of odor gases was described elaborately. These odor gases mainly come from the anaerobic fermentation of intestinal flora and indigenous microorganisms in livestock and poultry manure. The composition is complex, and the emission reduction and regulation of odor gases has become an important task of livestock and poultry farms. Biological deodorization has become the main method for deodorization in livestock and poultry farms due to its strong adaptability to the environment, long duration and promising removal effect. Microbial deodorant is a combination of deodorizing microorganisms, which decomposes odorous gases as nutrients and oxidizes them into odorless and harmless end products such as CO2, H2O, S O 4 2 - and N O 3 - by using their physiological metabolic activities.

Key words: microbial deodorant, livestock and poultry farms, odor gas, mechanism of action

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