PARASITOLOGIC AND PATHOLOGIC STUDY OF FREE-RANGING SOUTH AMERICAN RATTLESNAKES (CROTALUS DURISSUS TERRIFICUS) IN BRAZIL.
J Zoo Wildl Med
; 53(3): 515-527, 2022 Sep.
Article
en En
| MEDLINE
| ID: mdl-36214236
ABSTRACT
This study assesses parasitism and pathologic manifestations in free-ranging Crotalus durissus terrificus. A total of 96 rattlesnakes from the State of Minas Gerais (southeast Brazil) were necropsied between September 2019 and February 2020. Granulomatous gastritis affected 48% (46 of 96) of the snakes evaluated, which were associated with the ascaridid nematodes Ophidascaris sp. and Hexametra sp. Other nematodes found included Kalicephalus costatus costatus and Kalicephalus inermis inermis (Diaphanocephalidae; 7%, 7 of 96) in the intestines, Serpentirhabdias sp. (Rhabdiasidae; 18%, 17 of 96) in the lungs, and Hastospiculum sp. (Diplotriaenidae; 2%, 2 of 96) encapsulated in the serosa of the mesentery. Larval cestodes, probably spargana of Spirometra sp. (Diphyllobothriidae; 2%, 2 of 96), were found in the skeletal muscle and unidentified acanthocephalan cystacanths (Oligacanthorhynchidae; 5%, 5 of 96) in the subcutis and coelomic cavity. The pentastome Porocephalus crotali (Porocephalidae; 2%, 2 of 96) was also found in the lungs. Microscopically, intestinal disease was caused by Sarcocystis sp. (7%, 7 of 96), Cryptosporidium sp. (1%, 1 of 96), and Entamoeba sp. (1%, 1 of 96) and fungi (7%, 7 of 96). In addition, hemoparasites such as Hepatozoon spp. (23%, 22 of 96) and Trypanosoma sp. (1%, 1 of 96) were observed in blood smears. This study expands the knowledge of diseases, parasites, and other infectious agents affecting free-ranging C. durissus terrificus in Brazil.
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Criptosporidiosis
/
Cryptosporidium
Límite:
Animals
País/Región como asunto:
America do sul
/
Brasil
Idioma:
En
Revista:
J Zoo Wildl Med
Asunto de la revista:
MEDICINA VETERINARIA
Año:
2022
Tipo del documento:
Article
País de afiliación:
Brasil