Pub Date : 1969-04-01DOI: 10.7589/0090-3558-5.2.95
R H Jacobson, D E Worley, K R Greer
Post-mortem examination of 181 elk (Cervus canadensis nelsoni) from the northern Yellowstone Park herd in 1967–68 revealed that 41% were infected with Thysanosoma actinioides. Infections occurred in all age classes of animals from seven areas in the Yellowstone, Gardner and Lamar drainages in the northern section of the Park. Prevalence of the parasite was higher in calves and yearlings than in mature elk. Infections varied from 1 to 16 worms per animal, with an average intensity of 4.3 in 75 elk. Worms were confined to the first 6.2 feet of the small intestine, with no distinct habitat preference apparent within this area. Little evidence of T. actinioides or gross lesions associated with its presence was found in the liver or bile ducts of elk examined 20 to 40 minutes after death.
{"title":"The fringed tapeworm (Thysanosoma actinioides) as a parasite of the rocky mountain elk in Yellowstone National Park.","authors":"R H Jacobson, D E Worley, K R Greer","doi":"10.7589/0090-3558-5.2.95","DOIUrl":"https://doi.org/10.7589/0090-3558-5.2.95","url":null,"abstract":"Post-mortem examination of 181 elk (Cervus canadensis nelsoni) from the northern Yellowstone Park herd in 1967–68 revealed that 41% were infected with Thysanosoma actinioides. Infections occurred in all age classes of animals from seven areas in the Yellowstone, Gardner and Lamar drainages in the northern section of the Park. Prevalence of the parasite was higher in calves and yearlings than in mature elk. Infections varied from 1 to 16 worms per animal, with an average intensity of 4.3 in 75 elk. Worms were confined to the first 6.2 feet of the small intestine, with no distinct habitat preference apparent within this area. Little evidence of T. actinioides or gross lesions associated with its presence was found in the liver or bile ducts of elk examined 20 to 40 minutes after death.","PeriodicalId":78835,"journal":{"name":"Wildlife disease","volume":"5 2","pages":"95-8"},"PeriodicalIF":0.0,"publicationDate":"1969-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.7589/0090-3558-5.2.95","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"16888943","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1969-04-01DOI: 10.7589/0090-3558-5.2.99
W K Butterfield, A H Dardiri
Herring gulls, Canada geese, and mallard ducks were orally vaccinated with attenuated duck plague virus and challenge inoculated with virulent virus. Herring gulls were unfnected by either virus; they did not die or produce detectable antibodies. Geese did not produce antibody to attenuated virus and 11 of 12 died after immunity challenge. Mallard ducks were more resistant as 7 of 9 survived challenge inoculation with virulent virus. No correlation between mortality and antibody produced to attenuated virus vaccine could be observed.
{"title":"Serologic and immunologic response of wild waterfowl vaccinated with attenuated duck plague virus.","authors":"W K Butterfield, A H Dardiri","doi":"10.7589/0090-3558-5.2.99","DOIUrl":"https://doi.org/10.7589/0090-3558-5.2.99","url":null,"abstract":"Herring gulls, Canada geese, and mallard ducks were orally vaccinated with attenuated duck plague virus and challenge inoculated with virulent virus. Herring gulls were unfnected by either virus; they did not die or produce detectable antibodies. Geese did not produce antibody to attenuated virus and 11 of 12 died after immunity challenge. Mallard ducks were more resistant as 7 of 9 survived challenge inoculation with virulent virus. No correlation between mortality and antibody produced to attenuated virus vaccine could be observed.","PeriodicalId":78835,"journal":{"name":"Wildlife disease","volume":"5 2","pages":"99-102"},"PeriodicalIF":0.0,"publicationDate":"1969-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.7589/0090-3558-5.2.99","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"16888944","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1969-04-01DOI: 10.7589/0090-3558-5.2.108
R S Cook, W C Glazener, D O Trainer
{"title":"White-tailed deer, a new host for Amblyomma inornatum.","authors":"R S Cook, W C Glazener, D O Trainer","doi":"10.7589/0090-3558-5.2.108","DOIUrl":"https://doi.org/10.7589/0090-3558-5.2.108","url":null,"abstract":"","PeriodicalId":78835,"journal":{"name":"Wildlife disease","volume":"5 2","pages":"108"},"PeriodicalIF":0.0,"publicationDate":"1969-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.7589/0090-3558-5.2.108","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"16889496","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1969-04-01DOI: 10.7589/0090-3558-5.2.111
G W Clark, B Swinehart
{"title":"Avian haematozoa from the offshore islands of northern Mexico.","authors":"G W Clark, B Swinehart","doi":"10.7589/0090-3558-5.2.111","DOIUrl":"https://doi.org/10.7589/0090-3558-5.2.111","url":null,"abstract":"","PeriodicalId":78835,"journal":{"name":"Wildlife disease","volume":"5 2","pages":"111-2"},"PeriodicalIF":0.0,"publicationDate":"1969-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.7589/0090-3558-5.2.111","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"16889498","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1969-04-01DOI: 10.7589/0090-3558-5.2.117
G W Clark, J Bradford, R Nussbaum
Studies on amphibian haematozoa have been reported from other sections of the United States and Canada (eg., Roudabush and Coatney, 1937, Trans. Am. Miscroscop. Soc. 56: 291-7; Fantham, Porter and Richardson, 1942, Parasitol. 34: 199-226). Reports on the blood parasites of amphibians in the Pacific Northwest is apparently limited to those of Lehmann (1954, J. Parasitol. 40: 656-9). All of his collections in Oregon were restricted to the Willamette Valley.
{"title":"Blood parasites of some pacific northwest amphibians.","authors":"G W Clark, J Bradford, R Nussbaum","doi":"10.7589/0090-3558-5.2.117","DOIUrl":"https://doi.org/10.7589/0090-3558-5.2.117","url":null,"abstract":"Studies on amphibian haematozoa have been reported from other sections of the United States and Canada (eg., Roudabush and Coatney, 1937, Trans. Am. Miscroscop. Soc. 56: 291-7; Fantham, Porter and Richardson, 1942, Parasitol. 34: 199-226). Reports on the blood parasites of amphibians in the Pacific Northwest is apparently limited to those of Lehmann (1954, J. Parasitol. 40: 656-9). All of his collections in Oregon were restricted to the Willamette Valley.","PeriodicalId":78835,"journal":{"name":"Wildlife disease","volume":"5 2","pages":"117-8"},"PeriodicalIF":0.0,"publicationDate":"1969-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.7589/0090-3558-5.2.117","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"16071835","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1969-04-01DOI: 10.7589/0090-3558-5.2.48
R D Spall, R C Summerfelt
Fifteen identified species and 13 genera, of endoparasitic helminths (Digenea, Eucestoda, Nematoda, Acanthocephala) were collected from 207 white crappie and 189 channel catfish June, 1967, through September 1968, from a 3,300-acre, turbid reservoir in northcentral Oklahoma. Differences in the prevalence and intensity of helminths from six reservoir collection sites were not statistically significant. Statistically significant differences in intensity and prevalence of certain helminth were found among different age classes of the hosts. Ontogenetic changes in the food habits of channel catfish, from a diet of invertebrates to fish, were apparently the reason for changes in the occurrence of many enteric helminths. The occurrence of some helminths, however, was independent of age. Changes relating to age in the crappie were limited to the occurrence of Posthodiplostomum minimum where multiple generations of metacercariae accumulate in older fish. These metacercariae occurred in significantly higher numbers in males. Otherwise the occurrence of parasitism did not differ significantly between the sexes. Seasonal differences in parasitism, heretofore rarely studied, were pronounced, reflecting changes in feeding, metabolism, and the reproductive cycle of the host, and the annual life cycle characteristics of the parasite. Some parasites, such as Dacnitoides robusta, were absent in the channel catfish in the winter but abundant in the summer. Conversely, proteocephalid tapeworms from the channel catfish were abundant in the winter and infrequent in the summer. Observations on the pattern of seasonal variation in prevalence and degree of infection of Posthodiplostumum minimum in the white crappie suggests that it may contribute to summer mortality of its host.
{"title":"Host-parasite relations of certain endoparasitic helminths of the channel catfish and white crappie in an Oklahoma reservoir.","authors":"R D Spall, R C Summerfelt","doi":"10.7589/0090-3558-5.2.48","DOIUrl":"https://doi.org/10.7589/0090-3558-5.2.48","url":null,"abstract":"Fifteen identified species and 13 genera, of endoparasitic helminths (Digenea, Eucestoda, Nematoda, Acanthocephala) were collected from 207 white crappie and 189 channel catfish June, 1967, through September 1968, from a 3,300-acre, turbid reservoir in northcentral Oklahoma. Differences in the prevalence and intensity of helminths from six reservoir collection sites were not statistically significant. Statistically significant differences in intensity and prevalence of certain helminth were found among different age classes of the hosts. Ontogenetic changes in the food habits of channel catfish, from a diet of invertebrates to fish, were apparently the reason for changes in the occurrence of many enteric helminths. The occurrence of some helminths, however, was independent of age. Changes relating to age in the crappie were limited to the occurrence of Posthodiplostomum minimum where multiple generations of metacercariae accumulate in older fish. These metacercariae occurred in significantly higher numbers in males. Otherwise the occurrence of parasitism did not differ significantly between the sexes. Seasonal differences in parasitism, heretofore rarely studied, were pronounced, reflecting changes in feeding, metabolism, and the reproductive cycle of the host, and the annual life cycle characteristics of the parasite. Some parasites, such as Dacnitoides robusta, were absent in the channel catfish in the winter but abundant in the summer. Conversely, proteocephalid tapeworms from the channel catfish were abundant in the winter and infrequent in the summer. Observations on the pattern of seasonal variation in prevalence and degree of infection of Posthodiplostumum minimum in the white crappie suggests that it may contribute to summer mortality of its host.","PeriodicalId":78835,"journal":{"name":"Wildlife disease","volume":"5 2","pages":"48-67"},"PeriodicalIF":0.0,"publicationDate":"1969-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.7589/0090-3558-5.2.48","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"16888940","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1969-04-01DOI: 10.7589/0090-3558-5.2.68
B F Kingscote
White-tailed deer (Odocoileus virginianus) were sampled in a wilderness area of Southern Ontario in 1965, 1966, and 1967. Serological evidence of Leptospira pomona and L. grippotyphosa infection was found. Leptospirosis has not depressed the deer population. There was a positive correlation between age and reactor rate. Paper disc-absorbed whole blood has been tested comparatively with fluid serum and found to be a useful tool for field serological surveys.
{"title":"Leptospirosis survey in a white-tailed deer herd in Ontario: comparative use of fluid and paper disc-absorbed blood.","authors":"B F Kingscote","doi":"10.7589/0090-3558-5.2.68","DOIUrl":"https://doi.org/10.7589/0090-3558-5.2.68","url":null,"abstract":"White-tailed deer (Odocoileus virginianus) were sampled in a wilderness area of Southern Ontario in 1965, 1966, and 1967. Serological evidence of Leptospira pomona and L. grippotyphosa infection was found. Leptospirosis has not depressed the deer population. There was a positive correlation between age and reactor rate. Paper disc-absorbed whole blood has been tested comparatively with fluid serum and found to be a useful tool for field serological surveys.","PeriodicalId":78835,"journal":{"name":"Wildlife disease","volume":"5 2","pages":"68-72"},"PeriodicalIF":0.0,"publicationDate":"1969-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.7589/0090-3558-5.2.68","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"16888941","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Locoism in elk. A disease resembling cerebral pseudolipidosis.","authors":"J L Adcock, R E Keiss","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":78835,"journal":{"name":"Wildlife disease","volume":"5 2","pages":"121-4"},"PeriodicalIF":0.0,"publicationDate":"1969-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"16888938","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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