184 



POULTRY DISEASES 



Similar washes are indicated for conjunctivitis due to in- 

 juries, spurring, picking blows, etc. 



ULCERATION OF THE CORNEA 



Conjunctivitis is an inflammation of the mucous membrane 

 surrounding the anterior part of the eyeball. At times this 

 inflammation spreads hy contiguity to the cornea. The in- 

 flamed cornea becomes cloudy and finally may totally obstruct 

 the eyesight. There is frequently found in connection with 

 this an ulceration of the cornea. Fig. 69 is a case of a single 

 comb Rhode Island Red chick which had developed keratitis 

 when three weeks of age. The eye was enucleated, hardened 

 in 40 per cent formaldehyd solution and sectioned for study. 

 It was found that there was a pan-hemorrhagic condition. 



Ulceration of the cornea is sometimes found in conjunction 

 with the eye type of roup. There is an intense conjunctivitis, 

 an accumulation of quantities of purulent or catarrhal prod- 

 ucts in the conjunctival sac and a keratitis and later panoph- 

 thalmia. 



Fig, 69. Ulceration of the Cornea with Hemorrhage Into the 



Anterior, Posterior and Vitreous Chambers in a 



Three Days Old Chick. 



RESPIRATORY TROUBLES OF CANARIES 



The cage of the canaries should be kept clean, free from 

 drafts and the birds should have a well regulated food sup- 

 ply. When the bird is first noticed to be ill, isolate it, regulate 

 the diet and look to good sanitary conditions of the cage and 

 keep it in a well regulated temperature. Canaries are sub- 

 ject to cold drafts and it may be said that most of their com- 

 mon ailments come from this sort of exposure. 



In ordinary colds there is noted difficult breathing, with 



