Dust Concentration Monitoring in Korean Native Cattle Farm according to Sampling Location and TMR Process
학회지: 한국농공학회 59(4) 75 - 83 쪽
저자: 박관용, 권경석, 이인복, 여욱현, 이상연, 김준규
개요
Many parts of problems in livestock industry today are associated with organic dust. Endotoxin and toxic gasses on the surface of dust and dust itself can cause aesthetic displeasure and respiratory disease. It also reduces livestock productivity by suppressing immunity of animals and carrying microbes causing animal disease. However, dust level of cattle farm was rarely reported in Korea, and regulation for cattle farm worker does not exist. In this paper, dust concentration and environmental condition were regularly monitored in a commercial Korean native cattle farm. The measurement was conducted according to location and working activities. From the measurement, distribution of dust concentration was affected by wind environment, as the result of natural ventilation. TMR mixer was a major source of dust in target cattle house. The maximum inhalable dust concentration was 637.8 times higher than exposure limit as feed dropped into the TMR mixer. It was expected that dust generation could be affected by particle size and drop height of feed. This study suggests potential risk of dust in cattle farm, and necessity for latter study. Effect of aerodynamic condition and TMR processing should be investigated for dust reduction study.
Download Link :
https://doi.org/10.5389/KSAE.2017.59.4.075
https://www.koreascience.or.kr/article/JAKO201723839836848.page