Impact of different supply air and recirculating air filtration systems on stable climate, animal health, and performance of fattening pigs in a commercial pig farm

Autor: Cindy Wenke, Janina Pospiech, Tobias Reutter, Bettina Altmann, Uwe Truyen, Stephanie Speck
Rok vydání: 2017
Předmět:
RNA viruses
Atmospheric Science
Swine
Physiology
animal diseases
Staphylococcus
Air Microbiology
lcsh:Medicine
Biochemistry
Immune Physiology
Animal Husbandry
lcsh:Science
Pathology and laboratory medicine
Adiposity
Animal Management
Flow Rate
Mammals
Immune System Proteins
Physics
Commerce
Eukaryota
Classical Mechanics
Dust
Agriculture
Medical microbiology
Environment
Controlled
Chemistry
Air Filters
Influenza A virus
Air Pollution
Indoor
Animals
Domestic
Vertebrates
Physical Sciences
Viruses
Methicillin-resistant Staphylococcus aureus
Pathogens
Research Article
Staphylococcus aureus
Farms
Materials by Structure
Materials Science
Immunology
Fluid Mechanics
Animal Welfare
Microbiology
Continuum Mechanics
Antibodies
Air Quality
Air Pollution
Animals
Environmental Chemistry
Influenza viruses
Medicine and health sciences
Animal Performance
Bacteria
lcsh:R
Ecology and Environmental Sciences
Organisms
Viral pathogens
Biology and Life Sciences
Proteins
Fluid Dynamics
Ventilation
Microbial pathogens
Atmospheric Chemistry
Amniotes
Earth Sciences
lcsh:Q
Bacterial pathogens
Filtration
Orthomyxoviruses
Zdroj: PLoS ONE
PLoS ONE, Vol 13, Iss 3, p e0194641 (2018)
ISSN: 1932-6203
Popis: Biosecurity is defined as the implementation of measures that reduce the risk of disease agents being introduced and/or spread. For pig production, several of these measures are routinely implemented (e.g. cleaning, disinfection, segregation). However, air as a potential vector of pathogens has long been disregarded. Filters for incoming and recirculating air were installed into an already existing ventilation plant at a fattening piggery (3,840 pigs at maximum) in Saxony, Germany. Over a period of three consecutive fattening periods, we evaluated various parameters including air quality indices, environmental and operating parameters, and pig performance. Animal data regarding respiratory diseases, presence of antibodies against influenza A viruses, PRRSV, and Actinobacillus pleuropneumoniae and lung health score at slaughter were recorded, additionally. There were no significant differences (p = 0.824) in total bacterial counts between barns with and without air filtration. Recirculating air filtration resulted in the lowest total dust concentration (0.12 mg/m3) and lung health was best in animals from the barn equipped with recirculating air filtration modules. However, there was no difference in animal performance. Antibodies against all above mentioned pathogens were detected but mostly animals were already antibody-positive at re-stocking. We demonstrated that supply air filtration as well as recirculating air filtration technique can easily be implemented in an already existing ventilation system and that recirculating air filtration resulted in enhanced lung health compared to supply air-filtered and non-filtered barns. A more prominent effect might have been obtained in a breeding facility because of the longer life span of sows and a higher biosecurity level with air filtration as an add-on measure.
Databáze: OpenAIRE
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