POULTRY DISEASES AND THEIR TREATMENT. 



23 



\^'hen a bird shows these general symptoms of illness it should 

 be picked up and isolated and an effort made to obtain a more 

 precise diagnosis. In doing this the following table of the chief 

 external symptoms may be found of use. 



This table aims to direct one to the discussion of general 

 classes of disease. The identification of special individual dis- 

 eases should be attempted only after reading over the chapters 

 covering the general class involved. In general it should be 

 kept in mind that this table is not intended to tell the readeff 

 ivhat the disease he finds is, but solely to tell him what parts of 

 this book to read in any given case in order to make a diagnosis. 



Table of External Symptoms which may be of Some Value in 

 Differential Diagnosis. 



The numbers in brackets denote tlie pages to be consulted. 



Symptom. 



Diseases which the symptom named may indicate. 



Abdomen swollen. 

 BelcMng of gas 



Breathing abnormal (i. e.), 

 too rapid, too slow, wheez- 

 ing, whistling, snoring or 

 in any diiferent from nor- 

 mal 



Choking 



Comb, pale.. 



Comb first pale, but later 

 dark 



Comb, very dark. 



Comb, yellow 



Comb, with white, powdery 

 scurf. 



Constipation.. 



Convulsions ... 



Cough 



Crop, enlarged and hard. 

 Crop, enlarged and soft. . . 



Diarrhea . 



Nostrils, discharge from .. . 

 Emaciation 



Peritonitis (72), Dropsy (73), White diarrhea (181). 



Inflanimation of crop (34). 



Diseases of the respiratory system (85) , 

 Arsenic poisoning (44), Pericarditis (112), 

 Gapes (195) , Air-sac mite (110) . 



Arsenic poisoning (44) , 



Tuberculosis (57), Dropsy (73), Air-sac mite (110), 

 Infectious leukEcmia (114), White diarrhea (181). 



Enteritis (39). 



Liver disease (47), Blackhead (53), 

 Congestion of lungs, (107), Pneumonia (108). 



Liver diseases (47), Visceral gout (121). 



Wbite comb (160). 



Simple constipation (41), Indigestion (42) , 

 Inflammation of oviduct (165). 



Arsenic poisoning (44), Copper, lead or zinc poisoning (44), 

 Epilepsy (119), -'Harvest-bttg" (145), 



Diseases of the respiratory system (85) . 



Crop bound (32) . 



Inflammation of crop (34), Enlarged crop (36), 

 Gastritis (36). 



Diseases of the alimentary tract (32), Arsenic poisoning (44), 

 Copper, lead or zinc poisoning (44), Blackhead (53), 

 Tuberculosis (57), Cholera (66). Roup (90), 

 White diarrhea (181). 



Diseases of the respiratory system (85) . 



Tuberculosis (57), Aspergillosis (104), Visceral gout (121) 

 Mites (132), VVhite diarrhea (181). 



