Validation of a simple binary scoring system for assessment of welfare measures of 10-day-old commercial broilers and their correlation with environmental parameters
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Background: A simple binary scoring system (SBSS) was developed and used to assess the welfare measures ofcommercial broiler chickens in South Korea. We also correlated welfare measures with environmental parameters ofbroiler house. Our measures of welfare included lameness, hock burn (HB) and foot pad dermatitis (FPD), whilstenvironmental parameters included air temperature, relative humidity, air speed, light intensity, air quality (inparticular carbon dioxide (CO2) and ammonia (NH3) concentrations) and airborne microbes. Results: The effect of environmental parameters on welfare measures was apparent even on 10-day-old broilers. Anon-parametric correlation analysis revealed significant correlations between environmental parameters and welfaremeasures. The key environmental parameters were relative humidity and light intensity. The results indicate thatthere is a need for proper control of environmental conditions on poultry farms, which could reduce health problemsand subsequently reduce disease and mortality. Conclusions: In conclusion, the simplicity of SBSS makes it preferable over more complex scoring systems and allowsa farmer to more easily assess the welfare measures on their own farm.
Abstract
Background: A simple binary scoring system (SBSS) was developed and used to assess the welfare measures ofcommercial broiler chickens in South Korea. We also correlated welfare measures with environmental parameters ofbroiler house. Our measures of welfare included lameness, hock burn (HB) and foot pad dermatitis (FPD), whilstenvironmental parameters included air temperature, relative humidity, air speed, light intensity, air quality (inparticular carbon dioxide (CO2) and ammonia (NH3) concentrations) and airborne microbes. Results: The effect of environmental parameters on welfare measures was apparent even on 10-day-old broilers. Anon-parametric correlation analysis revealed significant correlations between environmental parameters and welfaremeasures. The key environmental parameters were relative humidity and light intensity. The results indicate thatthere is a need for proper control of environmental conditions on poultry farms, which could reduce health problemsand subsequently reduce disease and mortality. Conclusions: In conclusion, the simplicity of SBSS makes it preferable over more complex scoring systems and allowsa farmer to more easily assess the welfare measures on their own farm.
참고문헌 (20)
- Emmans G, "Consequences of genetic change in farm animals on food intake and feeding behaviour", Proc Nutr Soc, 60, pp.115~125 (2001)
- Industrial livestock production and global health risks, "Otte J", Food and Agriculture Organization of the United Nations, ~ (2007)
- Quality W, "Welfare Quality® assessment protocol for poultry (broilers, laying hens)", Welfare Quality® Consortium, ~ (2009)
- Jones T, "Environmental and management factors affecting the welfare of chickens on commercial farms in the United Kingdom and Denmark stocked at five densities", Poult Sci, 84, pp.1155~1165 (2005)
- Dawkins MS, "Chicken welfare is influenced more by housing conditions than by stocking density", Nature, 427, pp.342~344 (2004)
- Meluzzi A, "Survey of chicken rearing conditions in Italy : effects of litter quality and stocking density on productivity, foot dermatitis and carcase injuries", Br Poult Sci, 49, pp.257~264 (2008)
- May J, "The effect of environmental temperature on growth and feed conversion of broilers to 21 days of age", Poult Sci, 79, pp.669~671 (2000)
- Yahav S, "Relative humidity at moderate ambient temperatures : its effect on male broiler chickens and turkeys", Br Poult Sci, 41, pp.94~100 (2000)
- Osorio JA, "Ammonia : A review of concentration and emmision model in levestock structures", Dyna, 76, pp.89~99 (2009)
- Cambra-López M, "Airborne particulate matter from livestock production systems : A review of an air pollution problem", Environ Pollut, 158, pp.1~17 (2010)
- Tegethoff V, "A field study on stocking density and air quality in broiler production and recommendations to avoid heat stress in summer", Dtsch Tierarztl Wochenschr, 103, pp.87~91 (1996)
- Avigen, "ROSS Broiler Management Manual", Aviagen Ltd, ~ (2002)
- Deep A, "Effect of light intensity on broiler production, processing characteristics, and welfare", Poult Sci, 89, pp.2326~2333 (2010)
- Groot Koerkamp P, "Concentrations and emissions of ammonia in livestock buildings in Northern Europe", J Agr Eng Res, 70, pp.79~95 (1998)
- Liang Y, "Ammonia emissions from US laying hen houses in Iowa and Pennsylvania", T ASAE, 48, pp.1927~ (2005)
- Portejoie S, "L’ammoniac d’origine agricole : impacts sur la santé humaine et animale et sur le milieu naturel", INRA Prod Anim, 15, pp.151~160 (2002)
- Douwes J, "Bioaerosol health effects and exposure assessment : progress and prospects", Ann Occup Hyg, 47, pp.187~200 (2003)
- Schenker MB, "American Thoracic Society: respiratory health hazards in agriculture", Am J Respir Crit Care Med, 158, pp.S1~76 (1998)
- Berg CC, "Foot-pad dermatitis in broilers and turkeys", Doctor, pp.1998
- Blatchford R, "The effect of light intensity on the behavior, eye and leg health, and immune function of broiler chickens", Poult Sci, 88, pp.20~28 (2009)