{"id":1077,"date":"1991-01-01T01:01:01","date_gmt":"1991-01-01T01:01:01","guid":{"rendered":"http:\/\/export.maxmaziy.php.nixsolutions.com\/?p=1077"},"modified":"1991-01-01T01:01:01","modified_gmt":"1991-01-01T01:01:01","slug":"concentration-of-respirable-dust-and-bioaerosols-and-identification-of-certain-microbial-types-in-a-hog-growing-facility","status":"publish","type":"post","link":"http:\/\/prairieswine.com\/rsc\/concentration-of-respirable-dust-and-bioaerosols-and-identification-of-certain-microbial-types-in-a-hog-growing-facility\/","title":{"rendered":"Concentration of respirable dust and bioaerosols and identification of certain microbial types in a hog-growing facility."},"content":{"rendered":"<p>In order to assess the effects of ventilation rate, temperature, relative humidity and source of air on bioaerosol levels and dust with particle size < 10 um, a total of 120 pigs housed in 12 pens in two separate rooms were used. Pigs averaged 30 kg initially and the trials were discontinued when 20% of the pigs were marketed. A six-stage Andersen sampler and a light scattering particle counter were used to determine bioaerosols and respirable dust (0.1-10 um), respectively. Total bioaerosols were assessed using Trypticase Soy Agar, Potato Dextrose Agar was used for fungal aerosols and Baird-Parker Agar used for isolation of Staphylococcus aureus. Moulds amounted to less than 1% of total microoganisms. Gram positive bacteria made up 72% of the bacterial isolates. Respirable dust was not correlated with respirable bioaerosols. Ventilation rate (2, 5 or 8 changes per hour) did not affect bioaerosol level or respirable dust. Total bioaerosols were significantly reduced (P<0.05) in higher temperatures only. Relative humidity did not influence total bioaerosols but in one series respirable bioaerosols were significantly (R = 0.53) (P<0.05) correlated with RH. Total bioaerosols were not different in outside air or attic air.\n<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In order to assess the effects of ventilation rate, temperature, relative humidity and source of air on bioaerosol levels and dust with particle size < 10 um, a total of 120 pigs housed in 12 pens in two separate rooms were used. Pigs averaged 30 kg initially and the trials were discontinued when 20% of [&hellip;]\n<\/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":[8882,13816,19216,341,618,18739,12292,286,20007,1806,20792,5381,10858,371,4951,1138,14,33,16262,3229,20155,1533,20911,99,26223,18011,274],"class_list":["post-1077","post","type-post","status-publish","format-standard","hentry","category-environment","tag-al","tag-ass","tag-assess","tag-bacteria","tag-bioaerosols","tag-bioaerosols-and-swine","tag-dextrose","tag-dust","tag-gh","tag-humidity","tag-influence","tag-light","tag-mark","tag-microorganisms","tag-particle","tag-particle-size","tag-pig","tag-pigs","tag-pl","tag-potato","tag-respirable-and-non-respirable-bioaerosols","tag-size","tag-t","tag-temperature","tag-the-effects","tag-tot","tag-ventilation"],"_links":{"self":[{"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/posts\/1077","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=1077"}],"version-history":[{"count":0,"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/posts\/1077\/revisions"}],"wp:attachment":[{"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/media?parent=1077"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/categories?post=1077"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/tags?post=1077"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}