Swine diseases / by A.T. Kinsley.

  • Kinsley, A. T. (Albert Thomas), 1877-1941.
Date:
1914
Catalogue details

Licence: In copyright

Credit: Swine diseases / by A.T. Kinsley. Source: Wellcome Collection.

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    where they produce fermentation and the gas evolved is accumulated beneath the serous membrane. These air cysts vary in size from a pinhead to a pea, and there may be only a limited number of them or myriads. Occasionally they are so prevalent that the intestine will float on water. Enteritis Enteritis is inflammation of the intestine and may be catarrhal, croupous, diphtheritic, mycotic; simple or infective, acute or chronic. Catarrhal enteritis may be either acute or chronic. Acute Catarrhal Enteritis Acute catarrhal enteritis is a common ailment of swine. Etiology.—The usual cause of this disease is improper food. The natural habits of swine are conducive to the introduction of various microbes into their food and drink, and swine are frequently fed on materials that are partially decomposed. Their food not infrequently contains chemical substances that are sufficiently irri- tating to establish a catarrhal gastritis and enteritis. The ingestion of foods of extreme temperatures may excite catarrhal enteritis; not infrequently parasites occur in sufficient numbers to produce local irritation of sufficient extent to result in catarrhal enteritis; finally, acute catarrhal enteritis may be associated with a variety of infective diseases. Lesions.—The lesions may be localized or they may be general, involving practically the entire intestinal mucosa. In the beginning the affected mucous mem- brane is red, tumefied, and rather dry, but later it becomes coated with mucous which is produced in excessive quantities as the disease progresses. The submucosa may be swollen, due to the accumulation of inflammatory exudate. The tumefaction of the mucosa sometimes effectually closes the ducts of the intestinal glands, thus forming retention cysts, and the villi are turgescent and