Advances in Current and Emerging Diseases Management in Zoological Gardens

Special Issue Editor


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Guest Editor
Wildlife Reserves Singapore, Singapore, Singapore
Interests: zoo medicine; conservation medicine; animal welfare; zoo biology; animal management

Special Issue Information

Dear Colleagues,

Zoo medicine is a vibrant and important science with a considerable role in the continuous improvement of health, welfare, and husbandry of wild animals under human care. It is a challenging and captivating discipline because of the diversity of the patients and their needs, as well for its necessary holistic approach.

Whether they are considered physical, mental, infectious or non-infectious, metabolic, inherited, degenerative, social or self-inflicted, diseases pose a series of challenges to the zoo community and often necessitate the involvement of all animal professionals: keepers, curators, biologists, ethologists, nutritionists and veterinarians.

Therefore, documenting and studying diseases have always been crucial to professionals in charge of the health and welfare of wild animals under human care.

This Special Issue wishes to celebrate the tremendous contribution of zoo medicine to the continuous improvement of zoo animal management. Original research articles, review articles and short communications on all aspects of current and emerging diseases (aetiology, epidemiology, pathology, diagnosis, treatment, and control) and the resulting improvement in the management of zoo animals are all welcome.

Dr. Guillaume Douay
Guest Editor

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Keywords

  • zoo medicine
  • animal welfare
  • animal management
  • diseases
  • husbandry
  • nutrition

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Published Papers (2 papers)

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Research

11 pages, 454 KiB  
Article
Risk-Based Gastrointestinal Parasite Control in a Tropical Zoological Institute
by Yirui Heng and Delia Hwee Hoon Chua
J. Zool. Bot. Gard. 2024, 5(2), 200-210; https://doi.org/10.3390/jzbg5020014 - 16 May 2024
Viewed by 1392
Abstract
The surveillance and treatment of parasites are important features of preventative healthcare plans in zoological institutes. The parasite control strategies employed in temperate regions often involve prophylactic anthelmintic treatments during seasons where the burden of gastrointestinal parasites in fecal testing is high. These [...] Read more.
The surveillance and treatment of parasites are important features of preventative healthcare plans in zoological institutes. The parasite control strategies employed in temperate regions often involve prophylactic anthelmintic treatments during seasons where the burden of gastrointestinal parasites in fecal testing is high. These strategies are, however, not applicable in the tropics, where temperatures remain high throughout the year, allowing continuous parasitic development. A risk-based parasite management strategy was adopted by a tropical zoological institute. For parasite surveillance, routine fecal direct smears and magnesium sulfate flotations were performed to determine parasitic prevalence. The frequency of fecal checks for the year was determined by the frequency at which clinically relevant parasitism (fecal tests that resulted in the animal being treated) was detected during routine fecal checks in the previous year. A yearly anthelmintic drug-class rotation schedule was also implemented. The total number of fecal tests performed per year and the number of animals with clinically significant parasitic disease decreased by 30.0% (637/2126) and 46.9% (207/451), respectively, over the four-year period of the study. Anthelmintic class rotation also improved the efficacy of fenbendazole in treating Strongyloides spp. infecting the group of orangutans. This parasite control strategy is a targeted approach to managing preventative healthcare, reducing the work required to perform routine surveillance tests whilst maintaining the health of the collection of animals. Full article
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10 pages, 1325 KiB  
Article
Body Shape Analysis in Reticulated Giraffe, Okapi, and Black Rhinoceros Using Three-Dimensional Laser Measurements
by Nobuhide Kido, Sohei Tanaka, Yuko Wada, Atsushi Oura, Emi Ochiai, Natsumi Morita, Yoshiya Kawaguchi, Masanori Itabashi and Takanori Munakata
J. Zool. Bot. Gard. 2024, 5(1), 80-89; https://doi.org/10.3390/jzbg5010006 - 12 Jan 2024
Viewed by 3198
Abstract
Health management in captive animals is difficult for various unknown reasons presumably related to physiological functions, disease, and diet. Generally, abnormal conditions are diagnosed based on body weight; however, zoos lack appropriate scales for megafauna. Body shape evaluation is often used to evaluate [...] Read more.
Health management in captive animals is difficult for various unknown reasons presumably related to physiological functions, disease, and diet. Generally, abnormal conditions are diagnosed based on body weight; however, zoos lack appropriate scales for megafauna. Body shape evaluation is often used to evaluate the nutritional status of breeding animals; however, this is inaccurate for zoo animals because of inter-observer variability, especially in megafauna. Previously, three-dimensional laser measurements were used to analyse body shape of reticulated giraffe, but further studies are required to examine its effectiveness in more individuals, and other species. Here, we applied this method to seven reticulated giraffe (Giraffa reticulata), five okapi (Okapia johnstoni), and three black rhinoceros (Diceros bicornis) individuals for which cross-sectional area, width, and height in transverse section were determined. Relative change rates of each variable in relation to measurements at the axillary region revealed changes in body shape for each individual. Further, scatter plots and corresponding fitted curves and correlation coefficients showed a correlation between body length and approximate volume. The accuracy of three-dimensional laser measurements was demonstrated in three animal species, whereby we propose its use as an alternative method to evaluate body shape in megafauna without the inter-observer variability. In addition, this handheld device may be applied for various zoos without the scale for megafauna. Full article
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