Parasites of Birds

Morishita, Teresa Y.; Schaul, Jordan

doi:10.1002/9780470344552.ch10

Cited by 12 publications

(15 citation statements)

References 159 publications

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“…Also, it is interesting that most of the isolated parasites are heteroxenous, with crustaceans and snails acting as intermediate hosts, which seems to contrast the findings of previous dietary studies, which have categorized this swan as strictly herbivorous (CORTI & SCHLATTER, 2002). However, the possible explanation would be that swans ingest these items accidentally, as many of these intermediate hosts use aquatic vegetation and algae as refuge (BISSET, 1974;PENNYCOTT, 1998;MORISHITA & SCHAUL, 2007).…”

Section: Discussionmentioning

confidence: 80%

“…On the contrary, Sobolevicanthus was found free in the intestinal lumen. Thus, it seems that these tapeworms are not a primary cause of enteritis, as McDonald (1998), Morishita &Schaul (2007), andMcLaughlin (2008) suggested.…”

Section: Discussionmentioning

confidence: 99%

“…According to McDonald (1998) and McLaughlin (2008), the pathogenicity of most tapeworms is unknown; however, in general terms, they are considered as low or non-pathogenic to birds. For example, Morishita & Schaul (2007) indicated that a single bird could harbor hundreds of parasites without evident tissue damage. Nevertheless, tapeworms of considerable size could occlude the intestinal lumen and cause patent enteritis (JENNINGS et al, 1961;FRIEND & FRANSON, 1999).…”

Section: Discussionmentioning

confidence: 99%

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Gastrointestinal helminths and related histopathological lesions in black-necked swans Cygnus melancoryphus from the Carlos Anwandter Nature Sanctuary, Southern Chile

Oyarzún‐Ruiz

Muñoz

Paredes

et al. 2019

Rev. Bras. Parasitol. Vet.

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Black-necked swans are distributed across South America and face conservation problems in Chile according to data of the State institution SAG. The aim of this study was to identify helminths and to assess associated tissue damage via histopathology. A total of 19,291 parasites were isolated from 21 examined birds; 17 species were identified, including nematodes, flukes, and tapeworms. Of these, 12 were new host records, 13 were reported for the first time in Chile, and 5 were new records for the Neotropical region. Further, the flukes Schistosomatidae gen. sp. and Echinostoma echinatum are of zoonotic concern. Regarding histopathology, an inflammatory response was found along the birds’ entire digestive tract. Nevertheless, it is difficult to declare that there is a clear association between such lesions and isolated parasites, as other noxa could be responsible as well. Although in some cases there was an evident association, such inflammatory responses and necrosis were minimal, as occurred with Capillaria, Retinometra, Catatropis, Echinostoma, and Schistosomatidae gen. sp. Nevertheless, Epomidiostomum vogelsangi caused granulomatous injuries, an important inflammatory response, and necrosis, but it always circumscribed to superficial layers of the gizzard. Conversely, Paramonostomum was not associated with an inflammatory response despite a high parasitic load.

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Section: Discussionmentioning

confidence: 80%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Gastrointestinal helminths and related histopathological lesions in black-necked swans Cygnus melancoryphus from the Carlos Anwandter Nature Sanctuary, Southern Chile

Oyarzún‐Ruiz

Muñoz

Paredes

et al. 2019

Rev. Bras. Parasitol. Vet.

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“…At necropsy, one zebra finch was found to have its intestines impacted with worms; eggs containing hexacanth embryos were noted on fecal flotation exams (Fig. involved could not be determined, but one was similar to C. infundibulum, a tapeworm common in chickens and other birds (Morishita and Schaul, 2007), occasionally in insectivores and rodents, and at least once in a rhesus macaque (Jones et al, 1980). The cestodes were identified as Choanotaenia sp.…”

Section: Helminthsmentioning

confidence: 99%

Zebra Finches in Biomedical Research

Patterson

Fee

2015

Laboratory Animal Medicine

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“…The disease is caused by a cell-associated herpesvirus (double-stranded DNA virus, hexagonal enveloped virus). There are three serotypes of the MD virus: serotype 1, the oncoviruses (tumor-causing); serotype 2, the non-oncogenic viruses; and serotype 3, the herpes virus turkey (HVT) [59]. The virus is intranuclear (cell-associated) and normally cannot live outside the host cell, as it is protected from the environment by the host epithelium.…”

Section: Marek's Disease (Md)mentioning

confidence: 99%