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1 July 1991 INFLAMMATORY CELL STIMULATION AND WOUND HEALING IN SPHAERIDIOTREMA GLOBULUS EXPERIMENTALLY INFECTED MALLARD DUCKS (ANAS PLATYRHYNCHOS)
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Abstract

Thirty laboratory-reared mallard ducks (Anas platyrhynchos) were experimentally infected with Sphaeridiotrema globulus. Host cell-mediated immunity and wound healing in S. globulus infected ducks were evaluated by gross and histological examination. Establishment, location, and life span of S. globulus differed from previous reports of sphaeridiotremiasis in both naturally and experimentally infected waterfowl. No worms were recovered from the ceca, and worm migration occurred anterior to the ileo-cecal valve with greater dispersion (less worm crowding) at higher rates of infectivity. Parasite death and host lesion resolution were evident at days 8 to 10 postinfection (PI) in ducks fed a moderate dose (200 metacercariae, group A) with a 5% mean parasite recovery rate. Host death occurred at days 3 to 6 in ducks fed a high dose (550 metacercariae, group B) with a 16% mean parasite recovery rate. Mast cells increased significantly (P < 0.005) in group A ducks from days 4 to 10 PI. Eosinophil proliferation was greater in group B than in group A on day 4 PI, but comparatively fewer eosinophils were identifiable in group B ducks on day 6 PI.

K. Head Mucha and Jane E. Huffman "INFLAMMATORY CELL STIMULATION AND WOUND HEALING IN SPHAERIDIOTREMA GLOBULUS EXPERIMENTALLY INFECTED MALLARD DUCKS (ANAS PLATYRHYNCHOS)," Journal of Wildlife Diseases 27(3), 428-434, (1 July 1991). https://doi.org/10.7589/0090-3558-27.3.428
Received: 2 August 1990; Published: 1 July 1991
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