The effect of genetic selection for muscle yield on idiopathic myopathy in poultry: implications for welfare?

DA Sandercock*, Richard R Hunter, MA Mitchell, Paul Hocking

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

28 Downloads (Pure)


Plasma creatine kinase (CK) activity, an indicator of skeletal muscle damage was correlated with live weight (LW) and muscle yields in 37 different chicken lines representative of 3 categories; broiler (B), layer (L) and traditional (T). Measurements on these lines were made at 6 and 10 weeks of age. Significant increases in plasma CK activity associated with age were observed across all lines and were removed by regression on LW. Differences in CK activity between B lines and the other two categories were not removed by linear regression on LW. The results indicate that alterations in muscle membrane integrity have occurred in B lines that can not be explained by LW alone, and that there is a greater degree of muscle damage associated with the B lines than L and T lines (P<0.01). It is proposed that genetic selection for improved growth rate and muscle yield in modern broiler lines has detrimental effects upon muscle function and membrane integrity and may be attributable to genetically induced alterations in muscle fibre status.
Original languageEnglish
Title of host publicationProceedings of the 6th European Symposium on Poultry Welfare 2001
EditorsHans Oester, Christa Wyss
Place of PublicationSwitzerland
PublisherSwiss Branch of the World's Poultry Science Association (WPSA)
Number of pages5
ISBN (Print)3952230308, 9783952230305
Publication statusPrint publication - 2001
Externally publishedYes
Event6th European Symposium on Poultry Welfare - Zollikofen, Switzerland
Duration: 1 Sept 20014 Sept 2001


Conference6th European Symposium on Poultry Welfare


  • Idiopathic myopathy
  • Broiler welfare
  • Broiler chicken
  • Muscle yield
  • Genetic selection
  • Poultry
  • Muscle damage
  • Creatine kinase
  • Myopathology


Dive into the research topics of 'The effect of genetic selection for muscle yield on idiopathic myopathy in poultry: implications for welfare?'. Together they form a unique fingerprint.

Cite this