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Diagnosis and therapeutic management of gastrointestinal parasitism among the captive population of Indian star tortoise (Geochelone elegans Schoepff, 1795) at Zoological Garden, Thiruvananthapuram, Kerala, India.

ABSTRACT: Indian star tortoise (Geochelone elegans Schoepff, 1795) is a terrestrial herbivorous reptile that is classified under the vulnerable species of IUCN-Red List. The present communication reports the successful management of gastrointestinal parasitism due to co-infection with oxyurids and ascarid nematodes in the captive population of Indian star tortoise maintained at Zoological Garden, Thiruvananthapuram, Kerala, India. The diseased tortoise exhibited clinical signs like diarrhea, anorexia, and weight loss. Direct microscopic examination of pooled fecal sample identified the presence of oxyurid and ascarid ova. Therapeutic management involved a two-dose regimen of pyrantel pamoate given in a 2 week interval at a dose rate of 5 mg/kg body weight per orally. Complete parasitological clearance was observed 2 weeks after initiating the therapy without any recurrence. The two-dose pyrantel pamoate protocol was found to be effective in controlling the parasitic burden of captive Indian star tortoise. Chemotherapy can be combined with managemental changes to nullify the possibility of re-infection.

SUBMITTER: Sharun K

PROVIDER: S-EPMC7244645 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Project description:BackgroundEnterocytozoon bieneusi is a common opportunistic pathogen that is widely detected in humans, domestic animals and wildlife, and poses a challenge to public health. The present study was performed to evaluate the prevalence, genotypic diversity and zoonotic potential of E. bieneusi among wildlife at Chengdu and Bifengxia zoological gardens in Sichuan Province, China.ResultsOf the 272 fresh fecal samples harvested from 70 captive wildlife species at Chengdu Zoo (n = 198) and Bifengxia Zoo (n = 74), 21 (10.6 %) and 22 (29.7 %) tested positive for E. bieneusi by internal transcribed spacer (ITS) sequencing analysis, respectively. Specifically, genotypes D, Peru 6, CHB1, BEB6, CHS9, SC02 and SC03, and genotypes D, CHB1, SC01 and SC02 were detected in the Chengdu and Bifengxia Zoo samples, respectively. Five known genotypes (D, Peru 6, BEB6, CHS9 and CHB1) and three novel genotypes (SC01, SC02 and SC03) were clustered into the zoonotic group (group 1) and host-adapted group (group 2). Multilocus sequence typing (MLST) analysis targeting three microsatellites (MS1, MS3 and MS7) and one minisatellite (MS4) were successfully sequenced for 37, 33, 35 and 37 specimens, generating 8, 3, 11 and 15 distinct locus types, respectively. Altogether, we identified 27 multilocus genotypes (MLGs) among the E. bieneusi isolates by MLST. These data highlight the high genetic diversity of E. bieneusi among zoo wildlife.ConclusionsTo our knowledge, this is the first report on the prevalence and genotypic diversity of E. bieneusi infections among captive wildlife in zoos in southwest China. Notably, we identified three novel E. bieneusi genotypes, as well as six new mammalian hosts (Asian golden cats, Tibetian blue bears, blackbucks, hog deer, Malayan sun bears and brown bears) for this organism. Moreover, the occurrence of zoonotic genotypes suggests that wildlife may act as reservoirs of E. bieneusi that can serve as a source of human microsporidiosis. The findings presented here should contribute to the control of zoonotic disease in China.

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Diagnosis and therapeutic management of gastrointestinal parasitism among the captive population of Indian star tortoise (Geochelone elegans Schoepff, 1795) at Zoological Garden, Thiruvananthapuram, Kerala, India.

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