In pursuit of a better broiler: carcass traits and muscle myopathies in conventional and slower-growing strains of broiler chickens

Selection for accelerated growth rate and high breast yield in broiler chickens have been associated with an increase in myopathies, including wooden breast (WB) and white striping (WS). To investigate effects of growth rate on carcass traits and incidence of myopathies, 14 strains were evaluated, e...

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Bibliographic Details
Published in:Poultry science 2021-09, Vol.100 (9), p.101309-101309, Article 101309
Main Authors: Santos, Midian N., Rothschild, Daniel, Widowski, Tina M., Barbut, Shai, Kiarie, Elijah G., Mandell, Ira, Guerin, Michele T., Edwards, A. Michelle, Torrey, Stephanie
Format: Article
Language:English
Subjects:
Animals
chicken meat
Chickens
Diet
Female
Male
Meat - analysis
meat yield
Muscular Diseases - epidemiology
Muscular Diseases - veterinary
myopathies
Pectoralis Muscles
Poultry Diseases - epidemiology
PROCESSING AND PRODUCT
processing traits
slow-growth
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Summary:Selection for accelerated growth rate and high breast yield in broiler chickens have been associated with an increase in myopathies, including wooden breast (WB) and white striping (WS). To investigate effects of growth rate on carcass traits and incidence of myopathies, 14 strains were evaluated, encompassing 2 conventional (CONV; strains B and C: ADG0-48 > 60 g/d) and 12 slower-growing (SL) strains. The latter were categorized based on growth rate: FAST (strains F, G, I and M; ADG0-62=53–55 g/d), MOD (strains E, H, O and S; ADG0-62=50-51 g/d), and SLOW (strains D, J, K and N; ADG0-62
ISSN:0032-5791
1525-3171
DOI:10.1016/j.psj.2021.101309