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National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
Feeding insects as a passive vector of coccidian oocysts in reptile breeds
 TOTUŠKOVÁ, Gabriela
Representatives of Coccidia (Coccidia) from the family Eimeridae are common intracellular parasites in reptile breeding. In central bearded dragons (Pogona vitticeps), the most common species are Isospora amphiboluri and Choleoeimeria pogonae with a monoxenic life cycle. They are primarily found in the gastrointestinal tract of the host and can cause severe coccidiosis and death in animals. The infective agents of coccidia are resistant exogenous oocysts that are shed in faeces and serve to infect other hosts. Their transmission is by the orofecal route, during which infective oocysts are taken into the body of a new host with contaminated food or water. When live feeding insects are left in terrariums for long periods of time without access to a food source, the insects can become a passive vector of coccidia infection after consuming infected feces. The aim of this study was to test the ability of foraging insects to passage coccidian oocysts in their gastrointestinal system and to attempt to determine differences during passage between different taxa of foraging insects (Blattodea, Coleoptera, Orthoptera). The results of the experiment showed the passaging of viable oocysts of coccidia of the genera Isospora and Choleoeimeria in the digestive tract of feeding insects. The cricket Gryllus asimillis passaged the most oocysts, followed by the cockroach Blaptica dubia and the least passaging was detected in the larval stage of the beetle Zophobas morio.
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Breeding and rearing of endangered turtles in zoos - trend and distribution analysis
 TOTUŠKOVÁ, Gabriela
Turtles had first appeared on Earth more than 300 million years ago. While other an-imal species had evolved and subsequently perished, the turtles have survived due to their unique evolutionary adjustments. However, they were not prepared for rapid changes in nature, nor were they prepared for the human threat. There are currently 328 turtle species of which more than a half is in danger of extinction. One of the possible ways of preventing extinction of the rarest species of turtles in the wild may be their breeding in zoos. For the most endangered species, a suffi-cient and reproducing population there may be the last resort in preventing them from going extinct as well as give them a chance to eventually be reintroduced. In 2021, out of 50 endangered turtle species on the Turtles in trouble list, 41 spe-cies were bred in captivity in zoological gardens worldwide. Of these only 10 % of these had population greater than 500, 54 % had population greater than 50 and the remaining 36 % had population of up to 50. In 2021, only 26 species reproduced and during the years 2017-2021, 31 out of the 50 species had bred at least once.
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