نتایج جستجو برای: poultry litter
تعداد نتایج: 31328 فیلتر نتایج به سال:
Poultry rearing in the United States is approximately a thirty million dollar per year industry. To produce this large number of product, a by-product such as poultry litter is inevitable. The land application of poultry litter as an organic fertilizer is an ideal choice for the disposal of this high nitrogen, high organic waste. However, some precautions must be observed, particularly with reg...
17β-estradiol and testosterone are naturally occurring steroids that co-occur in poultry litter. The effects of litter on sorption of these hormones to soil are not known. Sorption isotherms were developed for C-labeled testosterone and H-labeled estradiol in a Cecil sandy clay loam with and without poultry litter addition. The effect of applying the hormones alone (single-sorbate) or together ...
An investigation of poultry litter intended for use in farm feeds showed that 0,37%, 0,49%, 0,25% and 12,3% of the 813 samples tested were contaminated with Clostridium spp., haemolytic Escherichia coli, Staphylococcus aureus and 21 different species of Salmonella. The findings clearly underline the hygienically dangerous nature of crude poultry litter. The practical implications of the results...
The purpose of this study was to evaluate the profitability of hatchery litter recycling into poultry feedstuff supplement. The data were collected in 2011 in 4 provinces, by direct interviewing of all hatcheries which used the hatchery litter drying machine. Net Present Value (NPV), Benefit-Cost Ratio (BCR), and Internal Rate of Return (IRR) methods were applied for this analysis. In the studi...
s of papers 5 indicator viruses such as male specific coliphages can have signficant advantages since they can serve as conservative pathogen indicators. Also, the ability to detect pathogens originating from poultry wastes can be extremely important when assessing risks from poultry wastes. Eighteen poultry pine litter samples and conventional paper chick box trayliners obtained from a local g...
Poultry litter is known to be an excellent organic fertilizer, but the common practice of spreading litter on the surface of pastures has raised serious water-quality concerns and may limit potential benefits of litter applications. Because surface-applied litter is completely exposed to the atmosphere, runoff can transport nutrients into nearby streams and lakes, and much of the ammonium nitro...
The research work was conducted to detect and characterize of Escherichia coli and Salmonella found in the poultry feed and litter. A total of 48 samples were collected from the different Broiler farms of Dinajpur district and brought to the laboratory. Samples were propagated in nutrient broth and nutrient agar media followed by culture on selective media– Eosin Methylene Blue Agar, MacConley ...
The reuse of poultry litter is a common practice in the Brazilian poultry industry for flocks of healthy chickens, due to 2 fundamental aspects: production cost and environmental sustainability. Litter is a potentially important source of infection for Salmonella, which requires characterization by microbiological analysis in different aspects of management and reuse. The objective of this stud...
This is a review paper on the effects of aluminum sulfate (alum) on ammonia volatilization and P runoff from poultry litter. Initially, laboratory studies were conducted that showed P solubility could be reduced in poultry litter with Al, Ca, and Fe amendments, indicating that these amendments may reduce P runoff. These results were confirmed in small plot studies in which alum applications to ...
This report contains an account of the gross and histopathological lesions of 20 cattle and four sheep in 15 field outbreaks of poultry litter toxicity, one steer fed ad lib. and six sheep dosed with toxic poultry litter, and ten sheep fed experimental rations containing c 2,5 ppm and 5 ppm maduramicin. The principle macroscopic lesions in most cattle that died in field outbreaks were indicativ...
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