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  • Title: Hematology and Clinical Biochemistry Profiles in Antillean Manatee Trichechus manatus manatus from Different Types of Captivity and Free Living in Northeast Brazil.
    Author: Mendonça MA, Fonseca MS, Attademo FLN, Marques FS, Ayres MCC, Barral TD, Meyer R, Portela RD.
    Journal: J Aquat Anim Health; 2020 Dec; 32(4):168-178. PubMed ID: 33098317.
    Abstract:
    The Antillean manatee Trichechus manatus manatus can be found along the northern and northeastern coasts of Brazil. Previous studies on the clinical biochemistry of these animals were conducted in North America and the Caribbean, whereas little is known regarding these parameters in South American manatee populations. Accordingly, the objective of the present study was to examine the hematology and clinical biochemistry of Antillean manatees of different sexes and from different environments in northeast Brazil. Whole-blood and serum samples were obtained from healthy individuals. The hemogram analysis was performed and the levels of blood biochemical components were determined using an automated platform. The only statistically significant difference observed in the hemogram was a higher number of heterophils in manatees that were screened during the dry season of the year. Clinical biochemistry profiling revealed that free-ranging manatees presented lower levels of creatinine. Albumin was detected in higher concentrations in animals from rehabilitation captivity, and amylase presented higher levels in manatees that were kept in acclimation captivity. Free-ranging manatees showed higher serum aspartate aminotransferase levels than manatees in rehabilitation captivity. These results can aid veterinarians and conservation professionals in the development of better captive management procedures and in the clinical approach to manatees.
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