Hematological Reference Intervals of Mangrove Parrots (Amazona amazonica) Kept in a Wildlife Management Establishment in the Amazon Biome, Pará, Brazil

Dallyth Maia da Costa Santos¹; Francisco Wanderson Bizerra Lima; Nailson de Andrade Neri Júnior; Milena Barbosa Casari; Analiel Serruya; Thyele Chaves da Silva; Leonardo Carvalho Costa; Anna Klara de Matos Guerreiro; Luis Edson Silva Moura; Mayra Coelho Gripp; Mário José Costa Carneiro; Cintya Renata Santana de Barros; Paulo Cesar Magalhães Matos; Roberto Thiesen; Cinthia Távora de Albuquerque Lopes; Natália da Silva e Silva Silveira

doi:10.20944/preprints202409.1672.v1

Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Version 1 : Received: 20 September 2024 / Approved: 20 September 2024 / Online: 23 September 2024 (07:42:28 CEST)

Amazona amazonica, popularly known as the mangrove parrot, belongs to the order Psittaciformes and is widely distributed across South America, occurring in all regions of Brazil. Although this species is commonly admitted to veterinary care, detailed hematological data are scarce. These data are crucial for guiding clinical interventions, monitoring specimens in human care environments, and providing research references. Hematological reference intervals were established for man-grove parrots kept in a fauna management establishment located in the Amazon biome in the state of Pará, Brazil. The study included 32 Amazona amazonica parrots. Average values for the analyzed analytes in the complete blood count (CBC) were: red blood cells (RBC) 2.42 million/µL; hemoglobin 15.92 g/dL; hematocrit 50.31%; MCV 205.47 fL; MCHC 31.7%; MCH 66.73 pg; white blood cells (WBC) 6,281.4 cells/µL; heterophils 2,671.1 cells/µL; lymphocytes 3,452.27 cells/µL; eosinophils 0 cells/µL; basophils 22.63 cells/µL; monocytes 106.41 cells/µL; thrombocytes 29.44; PPT 6.71 g/dL. Morphological characteristics of the cells were similar to those of other parrots. This research is pioneering in deter-mining hematological reference intervals for mangrove parrots under human care in a holding facility in the Amazon biome. These data can be used as a reference for animals of the species raised under similar conditions.

Amazon; hematologic evaluation; birds; nucleated erythrocytes; parrots

Biology and Life Sciences, Animal Science, Veterinary Science and Zoology

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Hematological Reference Intervals of Mangrove Parrots (Amazona amazonica) Kept in a Wildlife Management Establishment in the Amazon Biome, Pará, Brazil

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