Document Detail

Noise in a laboratory animal facility from the human and mouse perspectives.
MedLine Citation:
PMID:  20858361     Owner:  NLM     Status:  MEDLINE    
The current study was performed to understand the level of sound produced by ventilated racks, animal transfer stations, and construction equipment that mice in ventilated cages hear relative to what humans would hear in the same environment. Although the ventilated rack and animal transfer station both produced sound pressure levels above the ambient level within the human hearing range, the sound pressure levels within the mouse hearing range did not increase above ambient noise from either noise source. When various types of construction equipment were used 3 ft from the ventilated rack, the sound pressure level within the mouse hearing range was increased but to a lesser degree for each implement than were the sound pressure levels within the human hearing range. At more distant locations within the animal facility, sound pressure levels from the large jackhammer within the mouse hearing range decreased much more rapidly than did those in the human hearing range, indicating that less of the sound is perceived by mice than by humans. The relatively high proportion of low-frequency sound produced by the shot blaster, used without the metal shot that it normally uses to clean concrete, increased the sound pressure level above the ambient level for humans but did not increase sound pressure levels above ambient noise for mice at locations greater than 3 ft from inside of the cage, where sound was measured. This study demonstrates that sound clearly audible to humans in the animal facility may be perceived to a lesser degree or not at all by mice, because of the frequency content of the sound.
Randall P Reynolds; Will L Kinard; Jesse J Degraff; Ned Leverage; John N Norton
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of the American Association for Laboratory Animal Science : JAALAS     Volume:  49     ISSN:  1559-6109     ISO Abbreviation:  J. Am. Assoc. Lab. Anim. Sci.     Publication Date:  2010 Sep 
Date Detail:
Created Date:  2010-09-22     Completed Date:  2011-06-08     Revised Date:  2013-05-27    
Medline Journal Info:
Nlm Unique ID:  101269489     Medline TA:  J Am Assoc Lab Anim Sci     Country:  United States    
Other Details:
Languages:  eng     Pagination:  592-7     Citation Subset:  IM    
Division of Laboratory Animal Resources, Duke University Medical Center, Durham, North Carolina, USA.
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MeSH Terms
Air Pressure
Animal Welfare / standards*
Animals, Laboratory / physiology
Facility Design and Construction*
Hearing / physiology*
Housing, Animal / standards
Laboratory Animal Science / standards
Mice / physiology*

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