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The Long-Standing Problem of Parasitic Diseases in Zoo Animals: Current...
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The Long-Standing Problem of Parasitic Diseases in Zoo Animals: Current Challenges and Searching for Solutions

A special issue of Journal of Zoological and Botanical Gardens (ISSN 2673-5636).

Deadline for manuscript submissions: 31 May 2024 | Viewed by 2784

Special Issue Editor

Dr. Mariana Stancheva Panayotova-Pencheva

E-Mail Website
Guest Editor
Department of Experimental Parasitology, Institute of Experimental Morphology, Pathology and Anthropology with Museum, Bulgarian Academy of Sciences, Sofia, Bulgaria
Interests: veterinary parasitology; parasitic diseases; parasitic zoonoses; wildlife parasitoses

Special Issue Information

Dear Colleagues,

Parasitism is a widespread biological phenomenon in nature, and has also forever accompanied life in zoological gardens. The negative effects of parasitic infections in zoo animals could be numerous: the development of secondary deficiency and other infections, an impairment of reproduction, and a risk of death in cases of massive and dangerous parasitoses. Moreover, zoos are places where wild animals come into close contact with humans. This significantly increases the risk of the spread of parasitic zoonoses, posing a threat to the health of the animals themselves, staff of the zoos, and visitors.

The fight against parasitoses in zoos faces various challenges such as deficiencies in preventive programs; untimely or inaccurate diagnosis; parasite import via intermediates, paratenic hosts, or mechanical vectors (snails, ants, cockroaches, other insects, worms, rodents, etc.); persistent infections (e.g., soil-transmitted helminthoses); the need to adapt the antiparasitic treatment for a specific animal species, the development of resistance to drugs; and others. Success in this fight requires the united efforts of all zoo professionals: managers, curators, keepers, and veterinarians.

The help of science would be important but sometimes decisive for controlling parasitic diseases in zoo animals. The purpose of this Special Issue is to collect scientific papers on the topic of parasites in zoo animals that would contribute to both fundamental parasitology and zoo management practices. Original research articles, review articles, short communications, and case reports on all aspects of the subject are welcome. Let us do our part for a better future for animals in captivity!

Dr. Mariana Stancheva Panayotova-Pencheva
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Journal of Zoological and Botanical Gardens is an international peer-reviewed open access quarterly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1000 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • parasite diversity in zoos
  • parasitological diagnostics
  • captive wildlife parasitoses
  • antiparasitic preventive programs in zoos
  • parasite treatment in wild animals
  • antiparasitic drugs for exotic animals
  • antiparasitic resistance

Published Papers (2 papers)

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12 pages, 2770 KiB  
Article
Respiratory Infection by Cyathostoma (Hovorkonema) americana in a Population of Burrowing Owls (Athene cunicularia)—A Potential Case of Zoo–Wildlife Cross-Transmission
by Gonçalo N. Marques, João T. Cruz, Matilde Pinto, Miriam Leal, Carla Flanagan, Nuno Urbani and Luís Madeira de Carvalho
J. Zool. Bot. Gard. 2023, 4(4), 788-799; https://doi.org/10.3390/jzbg4040056 - 05 Dec 2023
Viewed by 1093
Abstract
A population of burrowing owls (Athene cunicularia) under professional care at Zoomarine Portugal presented with sudden respiratory clinical signs. Clinical management included a thorough diagnosis plan, including in-house fecal analysis that revealed the presence of ovoid unioperculate eggs. In the postmortem [...] Read more.
A population of burrowing owls (Athene cunicularia) under professional care at Zoomarine Portugal presented with sudden respiratory clinical signs. Clinical management included a thorough diagnosis plan, including in-house fecal analysis that revealed the presence of ovoid unioperculate eggs. In the postmortem examination of one hyperacute dyspneic specimen, adult nematode parasites were collected and identified based on their morphology as Cyathostoma (Hovorkonema) americana. Even after a broad-spectrum deworming protocol as part of the treatment and metaphylaxis approach, the incidence of parasitic reinfection was high. The complete clinical resolution was only accomplished after the identification and management of the possible focus of infection, a wild population of cattle egrets (Bubulcus ibis) that frequently congregated above the owls’ habitat. To the authors’ best knowledge, this is the first report of infection by Cyathostoma (Hovorkonema) americana in burrowing owls. Although nematodes of the family Syngamidae are not commonly included in the differential diagnosis of infectious respiratory agents of birds of the order Strigiformes, this report highlights the possibility of opportunistic parasitism in a zoological context, especially where there is a continued proximity to free-ranging avifauna. Full article
(This article belongs to the Special Issue The Long-Standing Problem of Parasitic Diseases in Zoo Animals: Current Challenges and Searching for Solutions)
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10 pages, 1919 KiB  
Case Report
Severe Parasite Co-Infection in a Captive Bactrian Camel: Case Report
by Mariana Panayotova-Pencheva and Francisco Ponce-Gordo
J. Zool. Bot. Gard. 2023, 4(4), 728-737; https://doi.org/10.3390/jzbg4040051 - 11 Nov 2023
Viewed by 885
Abstract
The aim of this study was to document a case of parasite co-infection in a captive Bactrian camel and to supply morphometric data of the found pathogens. It concerned a 20-year-old male animal inhabiting Sofia Zoo, Bulgaria. A decreased appetite and gastrointestinal disorders [...] Read more.
The aim of this study was to document a case of parasite co-infection in a captive Bactrian camel and to supply morphometric data of the found pathogens. It concerned a 20-year-old male animal inhabiting Sofia Zoo, Bulgaria. A decreased appetite and gastrointestinal disorders were observed in it during the summer of 2022. Improvement in the animal’s condition was achieved after the administration of antibiotics, sulfonamides, and other symptomatic medicines. However, two weeks after treatment, clinical symptoms reappeared. Then, a diarrheal fecal sample from the animal was subjected to parasitological examination by direct smear and flotation and sedimentation techniques. Multiple infections by helminths (Trichostrongylus sp., Haemonchus sp., Oesophagostomum sp., Trichuris sp., and Dicrocoelium sp.), ciliates (Buxtonella cameli), and protozoa (Eimeria cameli) were found, with E. cameli being reported for the first time in zoo conditions. Deworming led to the recovery of the general condition and appearance of the animal’s feces, but two weeks later, it died suddenly. We considered that the parasitic infection was not the direct cause of the fatal outcome, and its presence, other health disorders, and the advanced age of the animal were among the contributing factors. This case reveals the need to combine planned preventive deworming with routine parasitological diagnostics to take timely and targeted actions to protect the health of animals inhabiting zoo facilities. Full article
(This article belongs to the Special Issue The Long-Standing Problem of Parasitic Diseases in Zoo Animals: Current Challenges and Searching for Solutions)
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