. Swine practice . Swine. SURGERY AND OBSTETRICS 351 ParasHes Infestation of the castration Avounds with screw-worms (larvae of the Campsomyia macellaria) are very common in the southern part of the United States. These larvas burrow into the tissues, thus mechanically injuring them and providing an avenue of en trance for various bacteria. Lesions.—The principal lesion consists of an active, acute in- flammation with or without the production of pus. The surrounding tissues are tumefied, hyperemic, hemorrhagic, and contain the larvte. The extensive tumefaction developing within one or two day
. Swine practice . Swine. SURGERY AND OBSTETRICS 351 ParasHes Infestation of the castration Avounds with screw-worms (larvae of the Campsomyia macellaria) are very common in the southern part of the United States. These larvas burrow into the tissues, thus mechanically injuring them and providing an avenue of en trance for various bacteria. Lesions.—The principal lesion consists of an active, acute in- flammation with or without the production of pus. The surrounding tissues are tumefied, hyperemic, hemorrhagic, and contain the larvte. The extensive tumefaction developing within one or two days after castration is the most evident symptom. On a close inspection, larvte. Fig. 106. ACTINOMYCOSIS. may be observed near or upon the surface, and by manipulation of the lesion larviB may be forced out upon the surface. In cases of screw-worm infestation there is a constant sero-sanguineous dis- charge that by attracting the female fly favors repeated reinfestation. Treatment.—All that can be done in cases of screw-worm in- festation is to support the strength and minister to the comfort of the animal and prevent a further infestation from the deposition of more eggs or larvEe upon the wound and patiently wait for the investing larvffi to reach the stage of development when they volun-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Kinsley, Albert Thomas, 1877-. Chicago : American Veterinary Pub. Co.
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectswine, bookyear1921
