1,720,984 research outputs found
Natural infections of Crenosoma vulpis and Angiostrongylus vasorum in dogs in Atlantic Canada and their treatment with milbemycin oxime
No full textMilbemycin oxime was used to treat dogs with natural infections of the fox lungworm, Crenosoma vulpis and the French heartworm, Angiostrongylus vasorum. Crenosomosis was identified in 42 of 202 dogs with clinical signs of coughing, dyspnoea or exercise intolerance by a Baermann analysis of faecal samples taken between October 2000 and October 2001. It occurred throughout Atlantic Canada (New Brunswick, Newfoundland, Nova Scotia and Prince Edward Island). The clinical signs resolved and shedding of larvae in faeces ceased in all 32 Crenosoma-infected dogs given a single oral dose of 0.5 mg/kg milbemycin oxime for which the results of faecal examinations were available. Angiostrongylosis was identified in 16 of the 202 dogs and was restricted to the Avalon peninsula of Newfoundland, where 67 dogs were tested. The clinical signs resolved and shedding of larvae ceased in 14 of the 16 dogs treated with four, weekly oral doses of 0.5 mg/kg milbemycin oxime. One dog with severe clinical signs died during the course of treatment and one owner failed to provide a faecal sample from their dog but reported that the clinical signs had resolved.Source type: Electronic(1
Pulmonary trematodosis (Pharyngostomoides sp.) in a juvenile raccoon (Procyon lotor)
No full text© 2011 The Author(s)Accession Number: 21908291. Language: English. Language Code: eng. Date Created: 20110912. Date Completed: 20120113. Update Code: 20120113. Publication Type: Case Reports; Journal Article. Journal ID: 9011490. Publication Model: Print. Cited Medium: Internet. NLM ISO Abbr: J. Vet. Diagn. Invest. Linking ISSN: 10406387. Subset: IM. Date of Electronic Publication: 20110501; ID: 21908291Source type: Electronic(1
Dermal nematodosis in commercially captured rockfish (Sebastes spp) from coastal British Columbia, Canada
No full textMembers of an Ahousaht First Nations community of Vancouver Island, Canada have developed a market for wild-caught species of indigenous rockfish (Sebastes spp.). The fish, which are caught by hook and line, are transported live to fish markets in Vancouver. Recently, market place downgrading of the fish has occurred due to a syndrome referred to as "black-mould", characterized by linear black disfigurations, and erosions, of the skin. Samples from 14 wild-caught rockfish were examined to determine the cause. On the basis of sub-gross and histological examination, the black-mould syndrome was attributed to intraepithelial deposition of eggs from a trichuroid nematode of the genus Huffmanela, coupled with an inflammatory response. The eggs observed in the tissues of the rockfish differed in size and morphology from those described for other species of Huffmanela. This is the first report of Huffmanela spp. infection in rockfish, probably due to a previously undescribed species.LR: 20031114; PUBM: Print; JID: 0102444; ppublishSource type: Electronic(1
Hematology and clinical pathology of experimental Fascioloides magna infection in cattle and guinea pigs
No full textThe hematologic and clinico-pathologic response to Fascioloides magna infection in cattle and guinea pigs was investigated. Twelve calves (six infected and six controls) were monitored for 26 weeks after inoculation with 1000 metacercariae. All calves remained healthy and there were no significant differences in weight gains between infected and control groups. Flukes (mean = 9.2, range 1-32) were recovered from the liver and abdominal cavity of all infected calves. The only significant response observed in the complete blood counts was an eosinophilia present in the infected calves extending from Weeks 2 to 26 post-infection. There were no significant differences in serum levels of aspartate aminotransferase and only minor increases in the levels of gamma-glutamyl transferase and sorbitol dehydrogenase. A total of 48 infected and 48 control guinea pigs from three separate experiments were monitored for 16 weeks after inoculation with 20 metacercariae of Fascioloides magna. Infected guinea pigs died between 7 and 114 days after infection, and flukes (mean = 2.5, range 0-13) were recovered from the liver, abdominal cavity, lungs, thoracic cavity, skeletal muscle and subcutaneous tissue. There were no differences in weight gains between infected and control guinea pigs. Complete blood counts showed increases in white blood cells, monocyte and neutrophil counts from between the third and fourteenth weeks post-infection; however, the differences were not consistently significant. Infected guinea pigs developed a significant eosinophilia and basophilia from 2 to 16 weeks post-infection. There were no significant changes in the serum levels of alanine aminotransferase or gamma-glutamyl transferase. There was an increase in the serum levels of aspartate aminotransferase beginning at 5 weeks post-infection. The response observed in the guinea pigs was similar to that reported in sheep, suggesting the suitability of the guinea pig as a model for Fascioloides magna infection in the sheep.LR: 20061115; PUBM: Print; JID: 7602745; EC 2.6.1.1 (Aspartate Aminotransferases); EC 2.6.1.2 (Alanine Transaminase); ppublishSource type: Electronic(1
Survey of pulmonate snails of central Minnesota .1. Lymnaeidae
No full textAquatic snails were collected at 148 sites from various wetland habitats in central Minnesota between May and September, 1988. Ten lymnaeid species were collected, including Lymnaea palustris, L. stagnalis, L. exilis, L. caperata, L. catascopium, L. megasoma, L. Fossaria modicella, L. (F.) parva, L. (F.) bulimoides, and L. (F.) dalli. These species were found at 30-, 18-, 15-, 12-, 11-, 7-, 20-, 9-, 1.4-, and 0.7% of the collection sites, respectively. Lymnaeids were found most frequently in still water of near neutral pH with a small particle size substrate. However, individual lymnaeid species showed great variability in habitat type selection. Lymnaea megasoma and L. exilis were found in slightly acidic water. Lymnaea catascopium was found in the deeper open water of lakes and slow moving rivers, while L. caperata and L. (Fossaria) spp. were found in temporary wetlands and mud flats. Wetland habitat reduction during the drought of 1987-1989 may have influenced distribution of the amphibious species. Those species recovered from shallow temporary wetlands in this study may have a wider distribution during periods of normal rainfall.PT: J; CR: BAKER FC, 1911, CHICAGO ACAD SCI SPE, V3 BAKER FC, 1929, NAUTILUS, V4, P95 BAKER FC, 1929, NAUTILUS, V42, P131 BAKER FC, 1935, AM MID NAT, V16, P256 BAKER FC, 1936, NAUTILUS, V49, P127 BURCH JB, 1980, WALKERANA, V1, P81 BURCH JB, 1982, T POETS SOC, V1, P217 CLARKE AH, 1973, MALACOLOGIA, V13 DANIELS LE, 1909, NAUTILUS, V22, P119 DAWLEY C, 1947, AM MIDL NAT, V38, P671 EDDY S, 1982, TAXONOMIC KEYS COMMO EGGERS SD, 1987, WETLAND PLANTS PLANT SARGENT HE, 1895, NAUTILUS, V9, P87 SARGENT HE, 1995, NAUTILUS, V9, P125 SHAW S, 1971, 39 US DEP INT FISH W; NR: 15; TC: 2; J9: J FRESHWATER ECOL; PG: 9; GA: HK695Source type: Electronic(1
Interactive mortality factors in common loons from Maritime Canada
No full textBetween August 1992 and November 1995, 31 moribund or dead common loons (Gavia immer) found in the three Maritime provinces of Canada (New Brunswick, Nova Scotia, Prince Edward Island) were necropsied. Eight of these birds were in good body condition and died acutely from drowning or trauma. The remaining 23 birds were in poor body condition and had either chronic lead poisoning, respiratory mycosis, or oil contamination of their plumage. Loons in poor body condition had significantly higher numbers of intestinal trematodes and significantly higher levels of total renal mercury than loons in good body condition. Therefore, poor body condition in many loons was associated with two or more concurrent potential disease processes, although we could not establish a cause-effect relationship among these processes in individual birds. These results suggest that mortality in chronically ill wild animals can result from synergism among several potentially debilitating agents present in their environment.LR: 20061115; PUBM: Print; JID: 0244160; 0 (Petroleum); ppublishSource type: Electronic(1
Trichinella spiralis in sylvatic hosts from Prince Edward Island
No full textLarvae of Trichinella sp. were found in two of 208 red foxes (Vulpes vulpes) and one of 125 coyotes (Canis latrans) obtained from trappers from Prince Edward Island (Canada) in 1995 and 1996. A polymerase chain reaction based DNA biotyping method revealed the larvae to be isolates of Trichinella spiralis. This is the first verified identification of T. spiralis in sylvatic hosts from Canada.LR: 20031114; PUBM: Print; JID: 0244160; ppublishSource type: Electronic(1
Health status of harp seals (Phoca groenlandica) and hooded seals (Cystophora cristata) on Sable Island, Nova Scotia, Canada, concurrent with their expanding range
No full textBeach surveys for harp (Phoca groenlaandica) and hooded (Cystophora cristata) seals documented a dramatic increase in their numbers on Sable Island in mid 1990s. In the 1980s, no more than five animals of both species were observed on this island each year, however, during late 1994 to 1998, 1,191 harp and 870 hooded seals, mostly young animals, were recorded. Although some of these seals had been killed by sharks, most (roughly 75%) were found alive or as intact carcasses on the beach, and some of the live seals were later found dead. Emaciation/starvation was considered the primary cause of death in seals that were not obviously killed by sharks. Factors that may have compounded this poor body condition included gastric impaction with abnormal ingesta, hemorrhagic diathesis possibly induced by parasitic migration and secondary vasculitis, and stomatitis (in hooded seals only). Some harp and hooded seals expanding their range in recent years may be unable to feed successfully, although the reasons for this are unclear.LR: 20041117; PUBM: Print; JID: 0244160; ppublishSource type: Electronic(1
The efficacy of closantel against Fascioloides magna in sheep
No full textLR: 20061115; PUBM: Print; JID: 7803124; 0 (Anthelmintics); 0 (Salicylamides); 0 (Salicylanilides); 57808-65-8 (closantel); ppublishSource type: Electronic(1
Diagnostic parasitology
No full textLR: 20070221; PUBM: Print; JID: 0004653; ppublishSource type: Electronic(1
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