Zobrazeno 1 - 10
of 24
pro vyhledávání: '"John J R Feddes"'
Autor:
John J. R. Feddes, Martin Belzile, Stéphane Godbout, Myra Martel, Bernardo Z. Predicala, Stéphane P. Lemay, Matthieu Girard, Richard Hogue
Publikováno v:
Transactions of the ASABE. 60:2151-2162
Recently, bioreactors, such as biotrickling filters, have been used to reduce odor and gas emissions from livestock facilities. Considerable efforts have already been made over the years to evaluate and improve the efficiencies of bioreactors used fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ecdfdc2cbc8d3251763dcd50c3598611
https://doi.org/10.13031/trans.12156
https://doi.org/10.13031/trans.12156
Publikováno v:
Biosystems Engineering. 112:181-191
Odours from animal facilities can negatively affect the quality of life of nearby residents leading to conflicts between neighbours. Ammonia (NH3) is considered as the main odour-causing compound. With the recent shift in Quebec’s egg production sy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4f14a6a7371a34465cb44783ca41d982
https://doi.org/10.1016/j.biosystemseng.2012.03.010
https://doi.org/10.1016/j.biosystemseng.2012.03.010
Publikováno v:
Animals, Vol 2, Iss 1, Pp 1-15 (2011)
Animals; Volume 2; Issue 1; Pages: 1-15
Animals : an Open Access Journal from MDPI
Animals; Volume 2; Issue 1; Pages: 1-15
Animals : an Open Access Journal from MDPI
Simple Summary Greenhouse gas (GHG) emissions were measured from three different cage layer housing systems. A comparative study was conducted to identify the housing system with the least impact on the environment. The results showed that liquid man
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fd6276ba499c22832f62c3a8b68a47f9
https://doi.org/10.3390/ani2010001
https://doi.org/10.3390/ani2010001
Autor:
John J. R. Feddes, Allan L. Schaefer, D. R. Korver, N.J. Cook, John S. Church, Derek B. Haley
Publikováno v:
The Open Agriculture Journal. 5:10-18
The well-being of laying hens in cages of 5, 10, 20 and 40-birds/cage, and enrichment with perches, nest boxes and scratch pads, was assessed using behavioral and physiological parameters. Laying hens were Lohmann Brown (n = 360) and White Leghorns (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4ed6c85bb1ffec287211d5c1a78d3175
https://doi.org/10.2174/1874331501105010010
https://doi.org/10.2174/1874331501105010010
Publikováno v:
Occupational and Environmental Medicine. 68:102-107
Objectives In developed countries, poultry are raised in totally confined buildings in which workers are exposed to indoor airborne contaminants. A prospective study was conducted to investigate the relationship between workers9 respiratory health an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1d49b6e5a934eb13839dea33e632e50d
https://doi.org/10.1136/oem.2008.045021
https://doi.org/10.1136/oem.2008.045021
Autor:
John J R Feddes, James A. Dosman, Shelley Kirychuk, Stephen J. Reynolds, Wilhelm Guenter, Philip Willson, A. Senthilselvan, Henry L. Classen
Publikováno v:
Journal of Occupational and Environmental Medicine. 48:741-748
Objective: The objective of this study was to assess respiratory outcomes and environmental exposure levels of workers in cage-housed and floorhoused poultry operations. Methods: Poultry operations were evaluated for total dust, endotoxin, and ammoni
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9ac0520680f343942036424b90ed8996
https://doi.org/10.1097/01.jom.0000216215.39521.3c
https://doi.org/10.1097/01.jom.0000216215.39521.3c
Publikováno v:
Livestock Environment VII, 18-20 May 2005, Beijing, China.
Odorous air samples collected from diversified sources were presented to the olfactometry panel,an electronic nose, and hydrogen sulfide (H2S) and ammonia (NH3) detectors. The measurementsof the olfactometry (odor concentrations) were used as the exp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e45efd3c9065dd349884fd312dd2b278
https://doi.org/10.13031/2013.18384
https://doi.org/10.13031/2013.18384
Publikováno v:
2003, 2004, 2005 Pacific Northwest Region Papers.
Odour emission rates measured by a wind tunnel (WT) and vented flux chamber (VFC) could differ considerably. Their accuracy is also not known. Gaseous and odour emission rates measured by using a WT were compared to that of a VFC at air flow rates of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::17555b97e6756c9cccb8f5cee40e7c1c
https://doi.org/10.13031/2013.20051
https://doi.org/10.13031/2013.20051
Autor:
John J. R. Feddes, Alvin C. Alvarado, Bernardo Z. Predicala, Stéphane P. Lemay, Martin Belzile, Matthieu Girard
Publikováno v:
2013 Kansas City, Missouri, July 21 - July 24, 2013.
A biotrickling air filtration system was designed and developed based on laboratory-scale tests conducted at the Research and Development Institute for the Agri-Environment (IRDA) facilities in Quebec. Based on lab-scale test results, three biotrickl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::15efad32ef4cd524f698b043ac61067e
https://doi.org/10.13031/aim.20131620703
https://doi.org/10.13031/aim.20131620703
Publikováno v:
Transactions of the ASAE. 39:1077-1081
Dust concentrations in animal buildings can be reduced by sprinkling a small quantity of canola oil on the floor. The efficiency of dust reduction was expected to be dependent on the frequency and quantity of oil application. Canola oil was sprinkled
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::515bd9174cfbaeebe1e5ecb5d5c09dfe
https://doi.org/10.13031/2013.27598
https://doi.org/10.13031/2013.27598