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Friday, February 3, 2017

Poultry nutritional strategies to reduce woody breast.

At IPPE 2017, WATTAgNet discussed strategies to reduce woody breast with Rob Shirley, poultry technical services at Adisseo and Christine Alvarado, associate professor of poultry processing and products at Texas A&M. Woody breast is defined as breast muscle that is hard to the touch and usually cause texture quality issues for consumers and losses for the producers. The texture quality issues include fibrous nature and crunchiness, as well as overall unappealing attributes for consumers. This particular issue has become more common with the selection of high-yielding broilers, the trait is categorized on a scale of zero to three, with three being the most severe instances of woody breast. Nutrition is very dynamic, and so is the management of the birds, Until the genetics companies have bred this trait out of high-yielding broilers, companies can employ various nutrition and Some management strategies to reduce woody breast in these birds,discussed according to studies are 1)Feeding the bird up to 45 days of age. 2)Supplementing with nutrients that affect vasculature and antioxidant properties of the meat such as vitamin C or an increased vitamin premix. 3)Slowing down the birds by reducing the amino acid density in the grower phase by about 15 percent, e.g if you’re feeding a 1.09 digestible lysine diet, you’re going to reduce it to approximately .93 percent. These strategies have reduced the number of two and three scores to zero and one, moving toward more favorable breast meat for the consumer. Although more research needs to be done to determine what the mechanism is behind how each of the nutrients affects the overall growth, development and protein turnover of the breast meat from day of hatch to market age.