| a mallophaga, trinoton anserinum, as a cyclodevelopmental vector for a heartworm parasite of waterfowl. | the biting louse trinoton anserinum serves as the intermediate host in the life cycle of the filarial heartworm, sarconema eurycerca. microfilariae, second-, and third-stage larvae were dissected from 39 of 89 lice infesting whistling swans, cygnus columbianus columbianus, in north america and mute swans, cygnus olor, in the black sea, u.s.s.r. infective third-stage larvae obtained from lice collected from heartworm-parasitized whistling swans were injected subcutaneously into each of two hand-r ... | 1976 | 982042 |
| mortality factors in whistling swans at lake st. clair, ontario. | post mortem examinations of 31 whistling swans (olar columbianus) collected from the lake st. clair marshes in the spring of 1972 indicated that lead toxicosis and filariasis (sarconema eurycerca) were the main causes of mortality. | 1975 | 1113445 |
| the louse trinoton anserinum (amblycera: phthiraptera), an intermediate host of sarconema eurycerca (filarioidea: nematoda), a heartworm of swans. | the role of the louse trinoton anserinum (f) as an intermediate host of sarconema eurycerca (wehr) was investigated in swans. 8.3% of healthy swans carried one to twelve lice per bird, dispersed contagiously. injured and lead-poisoned swans were more heavily infected. the mouthparts appear designed to penetrate the hosts' skin; the mandibles are robust and asymmetric, and the maxillae have a serrated intercutting surface. 22% fed exclusively on blood and 33% on both blood and feather. all life-c ... | 1991 | 1768889 |
| heart worm, sarconema eurycerca, infection in whistling swans, cygnus columbianus, in chesapeake bay. | | 1968 | 5693834 |
| heartworm in a mute swan (cygnus olor). | a severely emaciated female adult mute swan (cygnus olor) was euthanized after a period of intensive supportive care in a wild bird rehabilitation centre. necropsy revealed severe myocardial haemorrhages in the right ventricular free wall associated with the presence of adult heartworm (sarconema eurycerca). on histological examination, multifocal randomly scattered blood-filled cavities without endothelial or epithelial lining (migration tracts) and surrounded by necrotic debris mixed with fibr ... | 2009 | 20088254 |
| myocarditis by nematodes infection, presumably sarconema eurycerca, in a wild whooper swan (cygnus cygnus) in korea. | a dead whooper swan was found in an area of cropland near a stream and was submitted to the national veterinary research and quarantine service (nvrqs) in korea. the affected animal was in relatively good condition. grossly, the heart was enlarged and had pale and dark red stripes. a white, elongate parasite was seen on the cut surface of the heart. histopathologically, severe lymphohistiocytic inflammation, myocardial necrosis, many adult heart worms and microfilariae were observed in the myoca ... | 2010 | 20431254 |
| control of biting lice, mallophaga - a review. | the chewing lice (mallophaga) are common parasites of different animals. most of them infest terrestrial and marine birds, including pigeons, doves, swans, cormorants and penguins. mallophaga have not been found on marine mammals but only on terrestrial ones, including livestock and pets. their bites damage cattle, sheep, goats, horses and poultry, causing itch and scratch and arousing phthiriasis and dermatitis. notably, mallophaga can vector important parasites, such as the filarial heartworm ... | 2017 | 28587840 |