نتایج جستجو برای: poultry house

تعداد نتایج: 66784  

Journal: :Journal of environmental quality 2004
J T Gilmour M A Koehler M L Cabrera L Szajdak P A Moore

While the poultry industry is a major economic benefit to several areas in the USA, land application of poultry litter to recycle nutrients can lead to impaired surface and ground water quality. Amending poultry litter with alum [Al3(SO4)2 x 14H2O] has received considerable attention as a method of economically reducing ammonia volatilization in the poultry house and soluble phosphorus in runof...

2011
Kinga Plewa Elżbieta Lonc

Our paper presents microbiological air pollution inside and outside two different poultry farms in Lower Silesia, Poland. The smaller poultry house (A) with 18,000 broiler chickens was surrounded by a protective green tree belt; the larger poultry house (45,000) was surrounded by a field without trees. Air samples were taken at ten sampling sites using a MAS-100 air sampler (Merck) in the summe...

Journal: :Journal of occupational and environmental hygiene 2017
S Williams Ischer M B Farnell G T Tabler M Moreira P T O'Shaughnessy M W Nonnenmann

Workers are exposed to dust in broiler chicken production during daily work activities. Poultry dust may contain inflammatory agents (e.g., endotoxin) and inhalation exposure has been associated with pulmonary symptoms. Current practice to reduce worker exposure to poultry dust is the use of respiratory protection (e.g., elastomeric face-piece respirator with a P100 and ammonia chemical cartrid...

Journal: :Vìsnik agrarnoï nauki 2023

Goal. To study the effect of keeping turkeys parent herd on regenerated laying microclimate poultry house, well-being and zootechnical indicators birds. Methods. Zootechnical (study parameters poultry), zoo-hygienic in house), statistical (statistical data processing). Results. Comparative studies house for their maintenance fresh were conducted. Laying regeneration was carried out according to...

2010
Elżbieta Lonc Kinga Plewa

Since intensive poultry production is accompanied by as high as possible densities of birds within buildings, this exposes poultry house workers to elevated concentrations of bioaerosol that is mainly emitted by birds. Exposure to dust containing pathogenic microbial and parasitic agents may cause asthma, asthma-like syndrome, mucous membrane irritation, chronic bronchitis, and allergic alveoli...

Journal: :Poultry Science 1923

2012

Technical Bulletin 1 ı As the poultry industry has grown, so have concerns about environmental management aspects, including air and water quality. There is a growing concern related to ammonia emission from poultry operations. Ammonia is a colorless, lighter than air, highly water-soluble gas present in the atmosphere of every poultry house. Ammonia volatilization from poultry litter commonly ...

Journal: :American journal of public health 1990
G S Marquis G Ventura R H Gilman E Porras E Miranda L Carbajal M Pentafiel

We used direct observer techniques to measure the frequency with which toddler-aged children were contaminated by poultry feces in homes in a peri-urban shanty town in Lima, Peru. The mean number of fowl was 5.4 (SD 3.1), with 10.0 (SD 10.7) poultry defecations per 12 hours. Toddlers' hand contact with poultry feces occurred a mean of 2.9 (SD 3.0) times/12 hours. A mean of 3.9 (SD 4.6) feces-to...

N. Khademolhosseini O. Ahmadauli, S. Najafi

An experiment was performed to investigate the energy efficiency and effect of poultry house size on energy productivity in 3 different capacity management systems. Capacities of houses were 10000(3 housings), 20000 (2 housings) and 28000 (1 housing) birds per production period and were assigned as HI, HII and HIII respectively. This experiment was conducted in a completely randomized design ap...

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