The prevalence and pathogenicity of gizzard nematodes of the genera Amidostomum and Epomidiostomum (Trichostrongylidae) in the lesser snow goose (Chen caerulescens caerulescens)
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Abstract
Three species of trichostrongylid nematodes were removed from the gizzards of 25 lesser snow geese, Chen caerulescens caerulescens, collected at Winisk, Ont. A 100% prevalence of infection was noted in the sampled population with each bird harboring two or more of the following species: Epomidiostomum crami (prevalence, 92%; mean intensity, 18.7 ± 13.3), Amidostomum anseris (prevalence, 84%; mean intensity, 9.6 ± 9.8), and Amidostomum spatulatum (prevalence, 84%; mean intensity, 11.2 ± 9.8). When large burdens (>30) of both A. anseris and A. spatulatum were present in the mucosal lining of the gizzard, progressive degeneration of the epithilium and koilin linings was noted in 16% of the geese examined. Severe necrotic granulomata observed in the gizzard muscle of 36% of the geese were associated with sizable burdens (>25) of E. crami which were found burrowed in the gizzard muscle.
Suggested Citation
Tuggle, B., and Crites, J.L., 1984, The prevalence and pathogenicity of gizzard nematodes of the genera Amidostomum and Epomidiostomum (Trichostrongylidae) in the lesser snow goose (Chen caerulescens caerulescens): Canadian Journal of Zoology, v. 62, no. 9, p. 1849-1852, https://doi.org/10.1139/z84-269.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | The prevalence and pathogenicity of gizzard nematodes of the genera Amidostomum and Epomidiostomum (Trichostrongylidae) in the lesser snow goose (Chen caerulescens caerulescens) |
| Series title | Canadian Journal of Zoology |
| DOI | 10.1139/z84-269 |
| Volume | 62 |
| Issue | 9 |
| Year Published | 1984 |
| Language | English |
| Publisher | NRC Research Press |
| Publisher location | Ottawa, Ontario |
| Contributing office(s) | National Wildlife Health Center |
| Description | 4 p. |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Canadian Journal of Zoology |
| First page | 1849 |
| Last page | 1852 |
| Country | Canada |
| State | Ontario |
| City | Winisk |
| Online Only (Y/N) | N |
| Additional Online Files (Y/N) | N |