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| align="left" | This question was provided by [[:Category:Manson|Manson Publishing]] as part of the [[OVAL Project]].  See more [[Category: Avian Medicine Q&A|Avian Medicine questions]]

| align="left" | This question was provided by [[:Category:Manson|Manson Publishing]] as part of the [[OVAL Project]].  See more [[:Category: Avian Medicine Q&A|Avian Medicine questions]]

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Vitamin A deficiency results in the failure of some cells to differentiate normally. In the sinus, the epithelial lining degenerates into squamous metaplasia resulting in a thickening of the mucus that washes the debris from the

Vitamin A deficiency results in the failure of some cells to differentiate normally. In the sinus, the epithelial lining degenerates into squamous metaplasia resulting in a thickening of the mucus that washes the debris from the

sinus. This thickening reduces flow rates and allows bacteria and debris to persist on the sinus lining until infection occurs.

sinus. This thickening reduces flow rates and allows bacteria and debris to persist on the sinus lining until infection occurs.

|l1=

|l1=Avian Sinusitis

|q2= How would you treat the underlying contributory deficiency?

|q2= How would you treat the underlying contributory deficiency?

|a2= Proper treatment consists of antibiotic therapy for the infection and a single dose of 20 000 IU vitamin A per kg body weight i.m., followed by supplementation of the diet with vitamin A.  

|a2= Proper treatment consists of antibiotic therapy for the infection and a single dose of 20 000 IU vitamin A per kg body weight i.m., followed by supplementation of the diet with vitamin A.  

Treatment of the infection without this supplementation renders the bird likely to have a recurrence of the infection.

Treatment of the infection without this supplementation renders the bird likely to have a recurrence of the infection.

|l2=

|l2=Avian Sinusitis#Treatment

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[[Category: Avian Medicine Q&A]]

[[Category: Avian Medicine Q&A]]