Comparative Parasitology 67(2) 2000 - Peru State College
Comparative Parasitology 67(2) 2000 - Peru State College
Comparative Parasitology 67(2) 2000 - Peru State College
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260 COMPARATIVE PARASITOLOGY, <strong>67</strong>(2), JULY <strong>2000</strong><br />
2A<br />
Figure 2. Photomicrographs of Thelazia lacrymalis. Part of vagina (V) and uterus (U). A. Normal<br />
individual with 2 uteri. B. Abnormal individual with 3 uteri and embryos visible in each branch. Scale<br />
bar = 50 u,m.<br />
difficult to document. It is of interest that Becklund<br />
(1960) recorded an association of phenothiazine<br />
given to sheep and morphological<br />
anomalies of male Haemonchus contortus (Rudolphi,<br />
1803) Cobb, 1898.<br />
This investigation was done in connection<br />
with a project of the Kentucky Agricultural Experiment<br />
Station and is published with the approval<br />
of the director as paper No. 99-14-120.<br />
Literature Cited<br />
Becklund, W. R. 1960. Morphological anomalies in<br />
male Haemonchus contortus (Rudolphi, 1803)<br />
Cobb, 1898 (Nematoda: Trichostrongylidae) from<br />
sheep. Proceedings of the Helminthological Society<br />
of Washington 27:194-199.<br />
Benton, R. E., and E. T. Lyons. 1994. Survey in<br />
central Kentucky for prevalence of Anoplocephala<br />
perfoliata in horses at necropsy. Veterinary <strong>Parasitology</strong><br />
55:81-86.<br />
Chandler, A. C. 1924. A note on Ascaris lumbricoides<br />
Copyright © 2011, The Helminthological Society of Washington<br />
with three uteri and ovaries. Journal of <strong>Parasitology</strong><br />
10:208.<br />
Hyman, L. H. 1951. The Invertebrates, Volume 3.<br />
Acanthocephala, Aschelminthes, and Entoprocta.<br />
McGraw-Hill Book Co., Inc., New York. 572 pp.<br />
Lichtenfels, J. R. 1975. Helminths of domestic equids.<br />
Proceedings of the Helminthological Society of<br />
Washington 42 (special issue): 1-92.<br />
Lyons, E. T., S. C. Tolliver, J. H. Drudge, T. W.<br />
Swerczek, and M. W. Crowe. 1986. Eyeworms<br />
(Thelazia lacrymalis) in one to four-year-old<br />
Thoroughbreds at necropsy in Kentucky (1984-<br />
1985). American Journal of Veterinary Research<br />
47:315-316.<br />
, , K. J. McDowell, and J. H. Drudge.<br />
1997. Atypical external characteristics of Anoplocephala<br />
perfoliata in equids in central Kentucky.<br />
Journal of the Helminthological Society of<br />
Washington 64:287-291.<br />
Patton, S., and M. D. McCracken. 1981. The occurrence<br />
and effect of Thelazia in horses. Equine<br />
Practice 3:53-57.<br />
Proudman, C. J., and A. J. Trees. 1999. Tapeworms<br />
as a cause of intestinal disease in horses. <strong>Parasitology</strong><br />
Today 15:156-159.