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Download RAW file: https://library.csbe-scgab.ca/docs/journal/31/31_2_233_raw.pdf
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Description: Air quality and contaminant production rates were determined in two commercial poultry rearing barns by monitoring the ventilation rates and concentrations of carbon dioxide, ammonia, hydrogen sulphide and dust for 24-h periods during each month of the 18- to 20-wk winter rearing cycle. One barn was representative of the cage-rearing system and the other of on-floor rearing. Air quality in the cage unit remained fairly constant and was superior to that in the on-floor operation, where air quality decreased over time. Carbon dioxide concentrations in the two barns ranged from 1670 to 2890 ppm. In the on-floor unit, ammonia concentration and production rate increased over the rearing cycle, with the concentration rising from a daily average of 0-25 ppm and production from 0 to 19 mL/(h.bird). Ammonia concentration and production data from the cage-rearing system showed no significant trends, the overall mean concentration being 11 ppm and production of 6.1 mL/(h.bird), respectively. Dust levels in the on-floor unit were very high, reaching a daily average of 100 particles/mL of size less than 5 /mi, and an average during the light hours of 150 particles/mL. Hydrogen sulphide concentrations were detected only in the cage unit and never exceeded 142 ppb.

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Citation: C.R. Glennon, J.B. McQuitty, P.C. Clark, and J.J.R. Feddes 1989. AIR QUALITY IN PULLET BARNS. Canadian Agricultural Engineering 31(2):233-237.
Volume: 31
Issue: 2
Pages -
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Date: 1989
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Type: Text.Article
Format: PDF
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Coverage: Canada
Language 1: en
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Rights: Canadian Society for Bioengineering
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