A cross-sectional epidemiological study associating air quality with swine health was conducted on 28 pig farms in southern Sweden. Correlation of housing air environment to swine diseases and productivity (data collected over the preceding 12 months) were investigated. The most prevalent swine health problems detected at slaughter were pneumonia and pleuritis. During farrowing and in the postnatal period the most prevalent problem was neonatal pig mortality. Several air contaminants (dust, ammonia, carbon dioxide, and microbes) were correlated with these swine health problems. Maximum safe concentrations of air contaminants were estimated on the basis of dose-response correlation to swine health or human health problems. Recommended maximum concentrations of contaminants were: dust, 2.4 mg\/m3, ammonia, 7 ppm; endotoxin, 0.08 mg\/m3; total microbes, 105 colony-forming units\/m3; and carbon dioxide, 1540 ppm. The overall quality of the ventilation system was correlated with lower concentration of ammonia, carbon dioxide, microorganisms, and endotoxin, but not with dust concentrations. High animal density was related to high ammonia and air microbe concentrations. Animal density measured as kilograms of swine per cubic meter (compared with kilograms of pig weight or swine per square meter) had the highest correlation to animal health and air contaminants.<\/p>\n","protected":false},"excerpt":{"rendered":"
A cross-sectional epidemiological study associating air quality with swine health was conducted on 28 pig farms in southern Sweden. Correlation of housing air environment to swine diseases and productivity (data collected over the preceding 12 months) were investigated. The most prevalent swine health problems detected at slaughter were pneumonia and pleuritis. During farrowing and in […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9],"tags":[540,238,456,8882,229,640,13816,9572,1402,349,60,5845,286,27280,562,5886,103,20007,111,47,311,2771,371,606,10859,234,14,505,607,89,16262,608,17743,95,76,35,609,20911,18011,274,1301],"class_list":["post-1050","post","type-post","status-publish","format-standard","hentry","category-environment","tag-air-microbiology","tag-air-pollution","tag-air-quality","tag-al","tag-ammonia","tag-animal","tag-ass","tag-association-of-environmental-air-contaminants-with-disease-and-productivity-in-swine","tag-carbon","tag-carbon-dioxide","tag-disease","tag-diseases","tag-dust","tag-environment","tag-farms","tag-farrow","tag-farrowing","tag-gh","tag-health","tag-housing","tag-human-health","tag-iron","tag-microorganisms","tag-mortality","tag-nat","tag-nh3","tag-pig","tag-pig-housing","tag-piglet-diseases","tag-piglets","tag-pl","tag-pneumonia","tag-prod","tag-quality","tag-slaughter","tag-swine","tag-swine-diseases","tag-t","tag-tot","tag-ventilation","tag-weight"],"_links":{"self":[{"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/posts\/1050","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/comments?post=1050"}],"version-history":[{"count":0,"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/posts\/1050\/revisions"}],"wp:attachment":[{"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/media?parent=1050"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/categories?post=1050"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/tags?post=1050"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}