冬季不同建筑类型奶牛舍内外气载微生物的比较研究

doi:10.16431/j.cnki.1671-7236.2016.02.033

Abstract

Abstract: The present objective of the study was to investigate the concentrations of indoor and outdoor and airborne fungi of three styles of dairy cowsheds in winter.The sampled sites included the shed,exercise yard,net road,sunshade,5 or 50 m distance upwind or downwind outside each dairy farm.The results showed that the indoor microorganism concentration varied from the shed styles.The concentrations of airborne bacteria ranged from 1 540 to 10 487 CFU/m³ in all three sheds,and among all sheds,the bacteria concentration in the shed with only roof was the highest.The concentrations of airborne fungi ranged from 169 to 731 CFU/m³ in all sheds,and the fungi concentration in the shed with curtain was the highest.Moreover,both bacteria and fungi concentrations in the evening were higher than that at noon and in the morning.From the spatial distribution of indoor and outdoor microorganisms,the bacteria concentrations in the sheds or at the exercise yard were higher than that at the net road in each farm,and the bacteria concentration in downwind was higher than in upwind,while the spatial distribution of fungi showed no significant difference among all sampled sites.The research results would provide some references for improving environment of cowshed and preventing from diseases.

Key words: dairy cow; environment; bacteria; fungi; shed

CLC Number:

S858.23

ZHANG Liang, GAO Yu-hong, LI Hong-shuang, QIU Dian-rui, GUO Jian-jun, WU Guang-jun, CHEN Wei. Comparative Study of Indoor and Outdoor Airborne Microorganism of Different Styles of Cowsheds in Winter[J]. , 2016, 43(2): 513-519.

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Comparative Study of Indoor and Outdoor Airborne Microorganism of Different Styles of Cowsheds in Winter

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