PoultryUSA - October 2017 - 37
woody breast and white striping.
York cited Auburn University
research that reduced one amino acid,
lysine, to 85 percent, or 75 percent of
requirements during the growing period (either from 12 to 18 days or 19 to
26 days). The study found no impact
on body weight gain, feed conversion,
feed intake or mortality, but a reduction in the incidence/severity of woody
breast for the 75 percent reduction
compared to the positive control.
She indicated some - but not all
- broiler producers who have fed reduced levels of lysine have had success
in reducing the incidence and severity
of woody breast and white striping.
Similarly, a study at Texas A&M
showed a reduction in the severity of
woody breast when all amino acids
were reduced by about 15 percent
during the growing phase.
in growing rations
Oxidative stress is a possible
trigger for woody breast and white
striping in broilers.
York posed the question: "Is the
broiler receiving all the metabolic
support it need as it grows to heavier
Research in the U.S. and Italy
has investigated the value of superdosing antioxidants in growing rations to reduce potential myopathies
in the muscle tissue. Feeding higher
levels of vitamin E, copper, zinc,
manganese, selenium, iron and possibly other minerals is a "defensive
play" that may be effective in the
October 2017 ❙ www.WATTAgNet.com
Read more: Poultry nutritional strategies
to reduce woody breast,
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