J.L. Purswell
USDA-ARS Poultry Research Unit, Mississippi State, MS 39762, USA
J.D. Davis
Department of Agricultural and Biological Engineering, Mississippi State University, Mississippi State, MS 39762, USA
B.D. Luck
Department of Agricultural and Biological Engineering, Mississippi State University, Mississippi State, MS 39762, USA
E.J. Kim
USDA-ARS Poultry Research Unit, Mississippi State, MS 39762, USA
H.A. Olanrewaju
USDA-ARS Poultry Research Unit, Mississippi State, MS 39762, USA
A.S. Kiess
Department of Poultry Science, Mississippi State University, Mississippi State, MS 39762, USA
S.L. Branton
USDA-ARS Poultry Research Unit, Mississippi State, MS 39762, USA
ABSTRACT
Improvements in modern broiler housing have substantially reduced air leakage, making proper operation of ventilation systems critical to maintaining a suitable environment. Fuel prices have increased in recent years, leading to reduced minimum ventilation in order to conserve fuel which increases carbon dioxide (CO2) concentrations within the house. Four trials were conducted to assess the effects of increased CO2 concentrations on birds aged 28 to 49 days. Each trial used 300 straight-run broilers placed in environmentally controlled rooms where CO2 concentrations were maintained with no added CO2 (control), 2500 ppm at all times, 2500 ppm (day) and 4500 ppm (night), or 2500 ppm (day) and 6500 ppm (night) from 28 to 42 days. No differences in live production (body weight, body weight gain, feed intake and feed conversion) or processing yields were observed. Analysis of ventilation rates to maintain the test conditions for a commercial broiler house showed that while supplemental heat requirements are lower with reduced ventilation needed to maintain either 4500 or 6500 ppm, the associated ventilation rates are inadequate for moisture removal.
PDF References Citation
How to cite this article
J.L. Purswell, J.D. Davis, B.D. Luck, E.J. Kim, H.A. Olanrewaju, A.S. Kiess and S.L. Branton, 2011. Effects of Elevated Carbon Dioxide Concentrations on Broiler Chicken Performance from 28 to 49 Days. International Journal of Poultry Science, 10: 597-602.
DOI: 10.3923/ijps.2011.597.602
URL: https://scialert.net/abstract/?doi=ijps.2011.597.602
DOI: 10.3923/ijps.2011.597.602
URL: https://scialert.net/abstract/?doi=ijps.2011.597.602
REFERENCES
- Miles, D.M., S.L. Branton and B.D. Lott, 2004. Atmospheric ammonia is detrimental to the performance of modern commercial broilers. Poult. Sci., 83: 1650-1654.
CrossRefDirect Link - NRC., 1994. Nutrient Requirements of Poultry. 9th Edn., National Academy Press, Washington, DC., USA.
Direct Link - Olanrewaju, H.A., W.A. Dozier III, J.L. Purswell, S.L. Branton and D.M. Miles et al., 2008. Growth performance and physiological variables for broiler chickens subjected to short-term elevated carbon dioxide concentrations. Int. J. Poult. Sci., 7: 738-742.
CrossRefDirect Link - Pedersen, S. and M.G. Thomsen, 2000. Heat and moisture production of broilers kept on straw bedding. J. Agric. Eng. Res., 75: 177-187.
CrossRef - Reece, F.N. and B.D. Lott, 1980. Effect of carbon dioxide on broiler chicken performance. Poult. Sci., 59: 2400-2402.
PubMedDirect Link - Xin, H., I.L. Berry and G.T. Tabler, 1996. Minimum ventilation requirement and associated energy cost for aerial ammonia control in broiler houses. Trans. ASAE, 39: 645-648.
Direct Link