290 Veterinary Medicine. 



bronckial and mediastinal glands are greatly swollen and con- 

 gested, of a dark red. 



2. Pigs. The lesions are in the main as in calves : pleural 

 effusions, with false membranes, infiltration of the lungs with 

 the same yellow marbling as in calves, hepatization in circum- 

 scribed areas, surrounded by a zone of liquid infiltration, soften- 

 ing necrosis, caseation and petechial discoloration are often all 

 noticeable in the same case. The areas representing the different 

 successive stages of the disease, are in keeping with the frequent 

 continuation of the disease in a subacute or chronic form. 

 Pericarditis is a common accompaniment. 



Symptoms. Calves. Within a few days after birth, usually 

 within the first week, there sets in a high fever, temperature 

 105" to 107" F., with cough, hurried, labored breathing (40 to 

 60), rapid pulse (90 to 100), and wheezing. The cough is fre- 

 quent, small, suffocating, and the visible mucosae deeply con- 

 gested. The calf stands with legs propped outward, and head 

 extended and staggers if made to walk. Percussion causes pain, 

 and shows areas of flatness, representing the consolidated lung 

 and over such points an abnormally loud blowing sound may be 

 heard. The natural tendency is to a rapid advance, with increas- 

 ing difficulty of breathing, frothing about the lips, open mouth, 

 pendant tongue, moaning with each expiration, diarrhoea, and 

 great loss of flesh and weight. 



Symptoms. Pigs. The symptoms in young pigs resemble 

 those of swine plague to which this is closely related. There is 

 the high fever, hurried breathing, wheezing, cough, tenderness 

 on handling or percussion, petechiation of the skin, snout, and 

 mucosae, weakness of the limbs and diarrhoea. Its n;ost marked 

 diagnostic symptom is the fact that the disease often confines 

 itself to the young pigs, while entirely respecting the older ones. 



Prevention. Avoid all the known causes of the disease. As 

 the food and surroundings of the dam become subservient to the 

 propagation of the germ to the young, the first care must be 

 given to her. No food, whether soiled fodder or such as has 

 come from an infected barn, or in the case of sows no cow's milk, 

 that may be suspected, and no raw swill from hotel, boarding- 

 house, nor family kitchen, no refuse of the butcher stall or 

 abattoir should be allowed. Avoid all dusty hay or any food 



