Ahmet Kamil BAYHAN, SEDAT KARAMAN, ÖZGÜR KOŞKAN

Effects of heat stress on egg yield and mortality rates of caged poultry houses

Bu araştırmada Nisan-Ağustos döneminde (5 ay) kafesli tip yumurta tavuğu kümesinde kümes içi sıcaklık ve bağıl nem değişimine bağlı olarak ısı stresinin tavuklarda yumurta verimi ve mortalite üzerine etkisi incelenmiştir. Otomatik yemleme ve sulama sistemiyle donatılan, %90 kapasite kullanım oranına sahip olan kümeste her kafese 5 tavuk yerleştirilmiş olup, deneme başlangıcında kümeste 27 haftalık yaşta 9900 adet Isa Brown ırkı tavuk bulunmaktadır. Araştırma boyunca kümes içi ve dış ortam sıcaklık ve bağıl nemi, kümeste günlük yumurta üretimi, günlük ölen tavuk sayısı sürekli kaydedilmiştir. Ayrıca, kümese ait yapısal özellikler ölçülmüştür. Kümese ait ısı ve nem dengeleri, Sıcaklık Nem İndeksi (THI), Yumurta Verimi (EPR) ve Ölüm Oranı (MR) hesaplanmıştır. Araştırma sonuçlarına göre; kümes iç sıcaklığı ile THI ve MR arasında artan, kümes iç sıcaklığı ile EPR arasında ise azalan istatistik yönden çok önemli (P

Kafesli kümeste sıcaklık stresinin yumurta verimi ve mortalite üzerine etkileri

In present study, effects of heat stress due to variations in indoor temperature and relative humidity on egg yield and mortality rates of hens in caged poultry houses were investigated between the months April and August (5 months). The experimental poultry house has automated feeder and waterer and operates at 90% capacity. Each cage has 5 hens and there were a total of 9900 Isa Brown hens in the poultry house before the experiments. Hens were 27th weeks old in the beginnings of the experiment. During the experiments, indoor and outdoor climate parameters such as temperature and relative humidity, daily egg production and mortalities were continuously recorded. Structural characteristics of the poultry house were also determined. Heat and moisture gains/losses, temperature humidity index (THI), egg production rates (EPR) and mortality rates (MR) were calculated. Results revealed significantly increasing and strong relationships between indoor temperature and THI MR and significantly decreasing relationships between indoor temperature and EPR (P<0.01). Indoor temperature increased from 20.7°C in April to 29.4°C in August, THI values increased from 66.1 to 77.0 during the same period. Therefore, mortality rates increased from 0.36% in April to 1.59% in August. While EPR was 88.7% in April, the value decreased to 79.4% in August. Without sufficient wall and roof insulation, it was found to be impossible to provide an indoor temperature of neither 18°C to keep EPR at high levels nor 21°C to keep MR≤0.1.

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1. Lin H, Jiao HC, Buyse J, Decuypere E: Strategies for preventing heat stress in poultry. World Poultry Sci J, 62 (1): 71-86, 2006.
2. Gill SPS, Gangwar PC: Effect of heat stress on egg production and egg quality. Indian J Anim Sci, 54 (5): 473-478, 1984.
3. Sahota AW, Ullah MF, Gilhani AH: Effect of heat stress on egg quality characteristics and serum calcium levels of White Leghorn and Lyallpur Silver Black breeds. Pak Vet J, 13 (4): 194-197, 1993.
4. Daghir NJ: Nutrients requirements of poultry at high temperatures. Poultry production in hot climate. International Center for Agriculture and Biosciences. CAB Int, 102-114, 1995.
5. Kapakin KAT, Imik H, Gumus R, Kapakin S, Saglam YS: Effect of Vit E on secretion of HSP-70 in testes of broilers exposed to heat stress. Kafkas Univ Vet Fak Derg, 19 (2): 305-310, 2013, DOI: 10.9775/kvfd.2012.7771
6. Charles DR: Comparative climatic requirement. In, Wathes CM, Charles DR (Eds): Livestock Housing. University Press, Cambridge. 3-24, 1994.
7. Webster AJF: Comfort and injury. In, Wathes CM, Charles DR (Eds): Livestock Housing. University Press, Cambridge, 49-67, 1994.
8. Etches RJ: Reproduction in Poultry. CAB Int, Wallingford. University Press, Cambridge UK, 1996.
9. MWPS -1: Structures and Environment Handbook. Midwest Plan Service, Iowa State University, Iowa: 515.1-661.1, 1987.
10. Mc Ardle A: Poultry Management and Production. Agricultural and Livestock Series, Halstead Press. Sydney Australia, 214-254, 1972.
11. ASAE: Design of Ventilation System for Poultry and Livestock shelters. Agricultural Engineers Year Book, ASAE, Michigan, 1979.
12. Sainsbury DWB: Health problems in intensive animal production. In, JA Clark (Ed): Environmental Aspects of Housing for Animal Production, Butterworths, London, 511, 1981.
13. Esmay ML: Principles of Animal Environment. The Avi Publishing Company Inc., Westport, Connecticut: 16-273, USA, 1982.
14. Bird AN, Hunton P, Morrison, DW, Webster JL: Heat stress in Caged Layers. Ministry of Agriculture and Food, AGDEX 451/120, Factsheet, Ontario. 1988.
15. AEL - Heft 17: Berechnungs- und Planungsgrundlagen für das Klima in geschlossenen Ställen. AEL , Arbeitsgemeinschaft für Elektrizitätsanwendung in der Landwirtschaft e. V. 2007. www.ael -online.de
16. Reid BI: Dietary protein and sulfur amino acids levels for laying hens during heat stress. Poult Sci, 52, 1335, 1973.
17. Van Kampen M: Thermal influence on poultry. In, JA Clark (Ed): Environmental Aspects of Housing for Animal Production. Butterworths, London, 131-147, 1981.
18. Moura DJ, Naas IA: Thermal Efficiency of Poultry Housing. International Conference on Agricultural Engineering, Madrid, 23-26 September 1996. 1-5, 1996.
19. Soysal M: Kümes kanatlıları için uygun çevre şartları (çeviri): David Antony Poultry International. Teknik Tavukçuluk Dergisi 42, 18-21,1983.
20. Ekmekyapar T: Regulation of Environmental Conditions in Animal Buildings. Ataturk University Agricultural Faculty, No: 306, 27-134 (In Turkish), 1993.
21. Ensminger ME: Poultry Science. The Interstate Printers and Publishers Inc., Danville, Illinois, 123-125, 1971.
22. MWPS-1: Structures and Environment Handbook. Midwest Plan Service, Iowa State University, Iowa, Eleven Editions, 1983.
23. Silanikove N: Effects of heat stress on the welfare of extensively managed domestic ruminants. Livest Prod Sci, 67, 1-18, 2000.
24. Anonymous: Climatical data of Tokat province. Turkish State Meteorological Service. Regional Directorate of Tokat, 2010.
25. Anonymous: Average climatical data of Tokat province. http://www.mgm.gov.tr/veridegerlendirme/il-ve-ilceler-istatistik.aspx?m=tokat, Accessed: 10.02.2013.
26. Maton A. Daelamans J, Lambrect J: Housing of Animals. Elsevier Sci, Publishers B.U., Netherland, p.458, 1985.
27. Berry IL, Miller JK: Spreadsheet model of broiler house environments. Appl Eng in Agric, 5 (2): 237-244, 1989.
28. Albright LD: Environment Control for Animals and Plants. ASAE, St. Joseph, MI, 1990.
29. Mutaf S, Sonmez R: Climatic Environmental Control in Animal Barns. Ege University Faculty of Agriculture Publications, No: 435, pp.10-131 (In Turkish), 1984.
30. ASABE: Guidelines for use of thermal insulation in agricultural buildings. ANSI/ASABE S401.2 AUG93, 1993.
31. ASAE: Design of ventilation systems for poultry and livestock shelters. ASAE EP270.5 DEC94, 1994.
32. CIGR: Handbook of Agricultural Engineering. Animal Production and Aquacultural Engineering, Vol. 2. St. Joseph, Michigan, 1999.
33. CIGR: Climatization of Animal Houses. Report of Working Group. Scottish Farm Building Investigation Unit. Craibstone, Aberdeen, Scotland: 1-72, 1984.
34. SPSS: SPSS for Windows, Advanced Statistics Release 10. Chicago, IL, USA, 1999.
35. Anoymous: ISA Product Performance- ISA Brown Commercial Layer, Hendrix Genetics Company, 2011. Available at: http://www.isapoultry.com/en/products/isa/isa-brown/~/media/Files/ISA/ISA%20product%20information/ISA/Commercials/201112%20ISA%20Brown%20FP%20product%20performance.pdf, Accessed: 05.06.2013.