Wooden Breast Syndrome in Broiler Chickens and Its Impacts
2021
Tuğçe Uzun | Aylin Ağma Okur
The aim of the study is to present a review about the "Wooden Breast Syndrome" (WBS) syndrome, which is a muscle disorder that has become increasingly important in recent years, and the etiology of the abnormalities caused by this myopathy, and its histological, macroscopic, and microscopic features. Besides, the effects on the visual, sensory, functional, mechanical quality and processing properties of the breast meat of broilers and their negative effects on the poultry industry were also discussed. Since this myopathy gives a hard structure to the pectolaris major muscle, it is called "Wooden Breast" in public. It is assumed that the leading direct and indirect causes of WB syndrome in broilers are pectoral muscle hypertrophy (volume increase in muscle cells), rapid growth rate, and high breast meat yield. Also, age, gender, diet, feed restriction, oxidative stress, genetics, etc. factors are also thought to be effective. However, the etiology of WB syndrome is still unclear in many aspects. As a result of the macroscopic examination of the wooden breast meat, a striking stiffness, swelling, viscous exudate (inflammatory fluid), petechial (purple-red bleeding spots) fluid, and a pale appearance in the pectoral major muscles are observed, and the lesions that occur can be detected by palpation. Due to these visual and sensory defects in breast meat, the consumability of meat decreases and this leads to significant economic losses for the poultry industry.
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