ENGINEERING AND ENVIRONMENTAL STUDIES ON AMMONIA EMITTED FROM POULTRY HOUSES
KHALED MOHAMED ABDEL-BARY;
Abstract
8. SUMMARY AND CONCLUSIONS
8. SUMMARY AND CONCLUSIONS
Air pollutants such as (airborne gaseous, particulate pollutants from livestock, feed, and manure) in livestock buildings may represent a risk to the health of both the housed livestock and of the stockmen. Moreover, when these air pollutants leave a building in its ventilation air, they may also represent a risk of pollution to the wider environment and influence air quality in and around livestock buildings. Whereas, air quality inside the building affects human and animal health and welfare, emissions from the building can lead to local, meso-scale and even global environmental pollution.
Confined animal units produce large volumes of animal wastes on relatively small land areas. Whereas, natural processes cannot assimilate these high concentrations of wastes. Thus, odors and other undesirable effects are persistent problems. Researches and regulatory agencies have shown increased interest in gases emitted from animal buildings as a potential air pollutant. Aerial gases such as ammonia (NH3), hydrogen sulfide (H2S), and carbon
dioxide (C0 ) produced in poultry houses adversely affect bird performance such as growth
2
rate, feed efficiency, carcass quality, and susceptibility to disease challenge. Also, volatilization of these gases from litter in broiler houses creates potential health hazards for
the house operators.
Moreover, gases emission from poultry houses for laying hens with litter are higher than the emission from battery houses (for about three times). As a result of the detrimental effects of previous gases deposition on the environment, gases emission have become an important issue at present time. New guidelines focused on livestock facilities are currently pending. These guidelines are intended to limit and control the concentration of airborne
gases and particulars in livestock facilities.
The reduction of gases emission from poultry houses to the ambient environment is considered as one of the important environmental control applications at present time, because of the previous reasons and effect of gases emission on outside environmental conditions. Further, to meet the environmental requirements it must be ensured that building
391
8. SUMMARY AND CONCLUSIONS
Air pollutants such as (airborne gaseous, particulate pollutants from livestock, feed, and manure) in livestock buildings may represent a risk to the health of both the housed livestock and of the stockmen. Moreover, when these air pollutants leave a building in its ventilation air, they may also represent a risk of pollution to the wider environment and influence air quality in and around livestock buildings. Whereas, air quality inside the building affects human and animal health and welfare, emissions from the building can lead to local, meso-scale and even global environmental pollution.
Confined animal units produce large volumes of animal wastes on relatively small land areas. Whereas, natural processes cannot assimilate these high concentrations of wastes. Thus, odors and other undesirable effects are persistent problems. Researches and regulatory agencies have shown increased interest in gases emitted from animal buildings as a potential air pollutant. Aerial gases such as ammonia (NH3), hydrogen sulfide (H2S), and carbon
dioxide (C0 ) produced in poultry houses adversely affect bird performance such as growth
2
rate, feed efficiency, carcass quality, and susceptibility to disease challenge. Also, volatilization of these gases from litter in broiler houses creates potential health hazards for
the house operators.
Moreover, gases emission from poultry houses for laying hens with litter are higher than the emission from battery houses (for about three times). As a result of the detrimental effects of previous gases deposition on the environment, gases emission have become an important issue at present time. New guidelines focused on livestock facilities are currently pending. These guidelines are intended to limit and control the concentration of airborne
gases and particulars in livestock facilities.
The reduction of gases emission from poultry houses to the ambient environment is considered as one of the important environmental control applications at present time, because of the previous reasons and effect of gases emission on outside environmental conditions. Further, to meet the environmental requirements it must be ensured that building
391
Other data
| Title | ENGINEERING AND ENVIRONMENTAL STUDIES ON AMMONIA EMITTED FROM POULTRY HOUSES | Other Titles | دراسات هندسية وبيئية على غاز الامونيا المنبعث من بيوت الدواجن | Authors | KHALED MOHAMED ABDEL-BARY | Issue Date | 2003 |
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