Computed Tomographical Examination of Infectious Route of Thoracic Vertebral Abscesses in Broiler Chickens

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  • X線CTを用いたブロイラーにみられる脊椎膿瘍の感染経路の検討
  • Xセン CT オ モチイタ ブロイラー ニ ミラレル セキツイ ノウヨウ ノ カンセン ケイロ ノ ケントウ

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Abstract

This study was conducted to reveal the infectious route of vertebral abscesses in broiler chickens. Twelve broiler chickens before shipment for meat inspection (Group A), two 74-day-old chickens (Group B) and two adult white leghorn chickens (Group C) were used. The air sacs of the chickens were examined using X-ray computed tomography (CT), and then the chickens were pathologically examined. Most of the vertebrae of group C showed pneumatization, while the pneumatization of groups A and B was restricted to between the cervical and third thoracic vertebrae. No pneumatization was recognized at the sixth thoracic vertebrae for groups A and B, although this vertebra was destroyed by vertebral abscesses, and this was confirmed by CT and pathological examinations. Therefore, it is suggested that the infectious route for the vertebral abscesses was unlikely to be through air sac infection.

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