IUCN / SSC Cat Specialist Group - Digital Cat Library |
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| Moreira, R.F. | |
| Haemocytozoa and ectoparasites in free-living jaguars from the Pantanal biome | |
| 2020 Full Book | |
The environmental and climatic changes caused mainly by anthropization are factors of concern in the conservation of wild species in the world. As a result, the circulation of emerging / reemerging pathogens and parasitism by vector ectoparasites can further aggravate the vulnerability of critical species. Therefore, knowledge about the agents that infect wild populations creates a network of information that can be used for conservation purposes and for public health. In view of the species of neotropical felids threatened with extinction, the jaguar stands out, the third largest feline in the world, with different degrees of vulnerability in Brazilian territory. In view of this scenario, the objective was to evaluate the presence of hemocytozoa and ectoparasites as a subsidy for information on the health status of free-ranging jaguars in the Pantanal Biome. In total, 22 blood samples were analyzed by Polymerase Chain Reaction (PCR) assays for different hematozoa. Ectoparasites were collected from 19 captures. It was possible to evaluate blood samples in 12 captures (blood smears and manual microhematocrit) and physiological parameters (mucosal color, weight/ kg, rectal temperature and capillary refill time) in all captures (at least two parameters were evaluated in each capture). In molecular analysis, 100% were positive for the Order Piroplasmida, Family Trypanosomatidae and Mycoplasma spp., in addition to 50% for the genus _Hepatozoon_. All samples were negative for the genus _Bartonella_ and for the Family Anaplasmataceae. Larvae in the third instar of _Dermatobia hominis_ were identified in six individuals and 454 ticks distributed in the genus _Amblyomma_ and in the species _Rhipicephalus microplus_ were identified. Gamonts of _Hepatozoon_ sp. and suggestive inclusion of piroplasm were identified in leukocytes in the blood smear slides evaluated. There were no changes in physiological parameters, even in co-infected jaguars with ectoparasites. In addition, the maintenance of these studies is important due to environmental changes that can alter the parasite-host relationship and, consequently, cause clinical manifestations. |
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