Iron deposition in the liver and guts of giant South American freshwater turtle Podocnemis expansa (Schweigger 1812) from a commercial breeding farm in Acre, Brazil
Journal: Multidisciplinary Science Journal (Vol.4, No. 4)Publication Date: 2022-08-01
Authors : André Luiz Veiga Conrado; Alex Cicinato Paulino de Oliveira; Luciana dos Santos Medeiros; Tiago Lucena da Silva; Yuri Karaccas de Carvalho;
Page : 1-5
Keywords : melano-macrophage centers; bioindicators; hemosiderosis; giant South American turtle; Podocnemis expansa;
Abstract
Wildlife turtles are endangered species because of the traditional capture of eggs and adult animals in Northern Brazil, such as the South American freshwater turtles (Podocnemis expansa). Successful conservation efforts in order to keep them in captivity and fed commercial fish chow may lead to physiological changes and systemic pathologies. Thus, in the present study, were evaluated the liver and digestive tract of 14 giant South American freshwater turtles microscopically and described the histopathological changes related from commercial breeding and captivity. There was the presence of ferric ions in the stomach epithelium and macrophages with ferric beads in crypts and intestinal villi. In the liver, it was observed disruption of hepatic architecture and liver hemosiderosis. There was the presence of large melano-macrophage centers (MC) filled with ferric ions throughout the liver parenchyma. The size of MC ranged from 25.3 x 31.3 μm up to 196.7 x 168.7 μm and occupied between 9.0 ± 2.9% and 37.5 ± 9.8% of the liver parenchyma area. Those findings can be influenced by age, malnourishment, or ammonia intoxication with posterior anemia, but all those hypotheses must be tested in the future.
Other Latest Articles
- An analysis of 50 years of seasonal rainfall and temperature pattern data in the Sylhet region of Bangladesh
- Effects of vitamin E supplement and semen collection time on sperm quality of locally Noi crossbred cocks
- Neural Therapy in a multidrug-resistant urinary tract infection in a cat: case report
- Incidences of fungal leaf spot disease in buffel grass (Cenchrus ciliaris) in some selected pasture farms in Tanzania
- Editorial: The harmfulness of excessive heat on sperm maturation in mammals
Last modified: 2022-10-21 23:05:58