نتایج جستجو برای: 1 urea formaldehyde

تعداد نتایج: 2785155  

Journal: :علوم دامی ایران 0
محسن سمیعی زفرقندی تقی قورچی مجتبی آهنی آذری

the objective of this study was to determine the effects of hulled and hull-less barley grains’ chemical treatment on disappearance of dry matter (dm), starch and cncps carbohydrate fractions. for barley grain treatment, naoh, formaldehyde and urea were used at 35, 4 and 35 gr/kg dm respectively. three mature rams (one year old) of zel breed were rumen cannulated to calculate ruminal disappeara...

Journal: :Thorax 1985
P S Burge M G Harries W K Lam I M O'Brien P A Patchett

Bronchial provocation studies on 15 workers occupationally exposed to formaldehyde are described. The results show that formaldehyde exposure can cause asthmatic reactions, and suggest that these are sometimes due to hypersensitivity and sometimes to a direct irritant effect. Three workers had classical occupational asthma caused by formaldehyde fumes, which was likely to be due to hypersensiti...

Journal: :ERJ. Engineering Research Journal 2014

Journal: :Technology audit and production reserves 2012

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