Induction of DPM Changes in Broiler Chickens and Characteristics of Myopathy Symptoms

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Abstract

The aim of the study was to induce deep pectoral myopathy (DPM) lesions in 42 to 45-day-old broiler chickens of the Ross 308 and Flex genetic lines, kept under standard intensive breeding management conditions applied in Poland, and to assess the degree of myopathy. A total of 110 and 120 carcasses, respectively, were examined. The study method consisted of the exposure of the birds to a stress factor (forced wing flapping) at specific time intervals prior to slaughter and at different durations of the stress factor. As a result of the conducted experiment, DPM symptoms appeared in the examined chickens. The symptoms of the progressing anomaly were divided into four stages. The first stage was characterised by the occurrence of bloody extravasations, stage II was characterised by a pale pink colour of muscles, stage III - greening of the muscle tissue, while stage IV was connected with necrosis and white-grey-green colour of muscles. The application of the forced wing flapping several days before slaughter (1, 3 d) resulted in the incidence of earlier symptoms of myopathy - stages I and II. Stimulation of wing flapping 5, 7, and 14 d before slaughter caused subsequent DPM stages (i.e. stages III and IV). In the group of the youngest birds subjected to the stress factor at 21 d before slaughter, DPM lesions were not found. Moreover, the longer the duration (15-60 s) of the stress factor, the greater the intensity of this phenomenon was observed. Bilateral DPM symptoms occurred more frequently than unilateral symptoms. Recorded results show that increased wing flapping is a significant factor inducing DPM in 42 to 45-day-old broiler chickens. These investigations indicated a possibility to determine the degree of DPM lesions depending on the passage of time from the induction of the anomaly to the slaughter of birds.

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  • 1. Bianchi M. Petracci M. Franchini A. Cavani C.: The occurrence of deep pectoral myopathy in roaster chickens. Poult Sci 2006 85 1843-1846.

  • 2. Bilgili S.F. Hess J.B.: Green muscle disease in broilers increasing. World Poult 2002 18 42-43.

  • 3. Bilgili S.F. Hess J.B.: Green muscle disease. Reducing the incidence in broiler flocks. Ross Tech 08/48 2008 3 2-5.

  • 4. Dickinson E.M. Stevens J.O. Helfer D.H.: A degenerative myopathy in turkeys. Proceedings of the 17th Western Poultry Disease Conference Cooperative Extension University of California Davis 1968 p. 7.

  • 5. Kijowski J.: Elements of modern poultry processing a chance for varied and valuable foodstuffs. Edited by PTTŻ Poznan 1993 pp. 16-17.

  • 6. Kijowski J. Konstańczak M.: Deep pectoral myopathy in broiler chickens. Bull Vet Inst Pulawy 2009 53 487-491.

  • 7. Kijowski J. Kupińska E. Kaczmarek A. Stangierski J. Popiół A.: Occurrence and characteristics of chicken breast muscles with DPM symptoms. Medycyna Wet 2009 65 466-471.

  • 8. Pastuszczak M. Uradziński J.: The prevalence of green muscle disease in turkeys from the Warmia and Mazury Province of Poland. Pol J Vet Sci 2002 5 57-61.

  • 9. Pastuszczak-Frąk J. Uradziński J.: Hygienic and technological value of turkey raw meat originating from flocks with green muscle disease. Pol J Vet Sci 2009 12 245-250.

  • 10. Ramza J.: Green muscle disease. Polskie Drobiarstwo 1996 5 20.

  • 11. Siller W.G.: Deep pectoral myopathy. A penalty of successful selection for muscle growth. Poult Sci 1985 64 1591-1595.

  • 12. Wight P.A.L. Siller W.G. Martindale L.: The sequence of pathological events in deep pectoral myopathy of broilers. Avian Pathol 1981 10 57-76.

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