88 DISEASES OF POULTRY. 



CHAPTER IV. 



Diseases ofthe Organs of Digestion {continued) . 



GASTRO-INTKSTINAI, CATARRH, SIMPI,E DIARRHEA, GASTRO- 

 ENTERITIS, ENTERITIS — CONSTIPATION, INTESTINAI^ 

 OBSTRUCTION^^OXIC GASTROENTERITIS — BACTERIAL 



ENTERITIS — ASTHENIA, GOING LIGHT — PSOROSPERMIC- 

 ENTERITIS — INFECTIOUS ENTERO-HEPATITIS OF TUR- 

 KEYS, BLACK HEAD — PARASITIC WORMS WHICH INFEST 

 THE DIGESTIVE APPARATUS — THE NODULAR T^NIASIS 

 OF FOWLS. 



gastro- intestinal catarrh, simple diarrhea, 



GASTRO -enteritis, ENTERITIS. 



/^^^ H E conditions known as gastro-intestinal catarrh 

 i I and gastro-enteritis may be regarded as different 

 ^fcir degrees of the same process , or as the same disease 

 but much more intense in one case than the other. 

 The stomach and intestine are both affected. With en- 

 teritis the inflammatory process is confined to the intes- 

 tine. During the life of the bird it is somewhat diffi- 

 cult to make a distinction between these three condi - 

 tions and it is, therefore, more convenient from a 

 practical point of view to group them together. By 

 postmortem examination, it is seen that the catarrhal 

 process produces comparatively slight changes in the 

 walls of digestive organs and that these are super- 

 ficial and near the epithelial surface, while in gastritis 

 and enteritis there is more redness and thickening, and 

 the inflammation extends not only to the deeper layers 

 of the mucous membrane but to the other coats of the 

 stomach and intestine. 



