Hematology values of captive giant anteaters (Myrmecophaga tridactyla) and collared anteaters (Tamandua tetradactyla)

Sanches, Tatiana; Miranda, Flávia Regina; Oliveira, Alice S.; Matushima, Eliana Reiko

doi:10.1590/s0100-736x2013000400022

Cited by 17 publications

(9 citation statements)

References 4 publications

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“…This reinforces the need for more studies with local species that report their particularities, helping to avoid errors while interpreting laboratorial test results. Values for total leukocyte count were lower than those reported by Sanches et al (2013). Those differences could be due to the fact that, in the present study, the animals were chemically restrained before blood collection.…”

Section: Resultscontrasting

confidence: 79%

“…Total plasma protein values are lower than the ones reported by Sanches et al (2013). As all animals were considered to be clinically healthy, these low values could be explained by differences in nutritional management.…”

Section: Resultsmentioning

confidence: 55%

“…The haematological indices MCV and MCHC, mostly used for anaemia's classification (Menezes et al 2010, Birgel et al 2014, were significantly distinct from other studies with the species, even for Brazilian regions (Sanches et al 2013). This data has direct relation to the amount of red blood cells and haemoglobin and, consequently, are influenced by physiologic, nutritional, environmental, climatic and management factors (Birgel Jr et al 2001).…”

Section: Resultsmentioning

confidence: 67%

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Giant Anteater (Myrmecophaga tridactyla Linnaeus, 1758) of the brazilian cerrado: hematology and storage effect

Oliveira

Trentin²,

Vila

et al. 2017

Pesq. Vet. Bras.

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Giant Anteater (Myrmecophaga tridactyla Linnaeus, 1758) of the brazilian cerrado: hematology and storage effect. Pesquisa Veterinária Brasileira 37 (7): [773][774][775][776][777][778][779][780]. Laborató-rio Clínico Veterinário, Hospital Veterinário, Departamento de Medicina Veterinária, Escola de Veterinária e Zootecnia, Universidade Federal de Goiás, Rodovia Goiânia Km 8, Campus Samambaia, Goiânia, GO, Giant Anteater (Myrmecophaga tridactyla) is a vulnerable species because of progressive habitat destruction, mostly affected by wildfires and car accidents. The increasing number of animals that are attended by wildlife rescue centres reinforces the need of knowledge about haematological parameters, especially for those that inhabit Brazilian cerrado biome. For this purpose and in order to establish reference values for this species and also to compare them with previous studies, haematological analysis of captive giant anteaters from Brazilian cerrado were performed. Moreover, the alterations of blood samples after 24 and 48 hours of storage at refrigeration temperatures (4 o C) and preserved with two different EDTA concentrations (5% and 10%) were studied. Means and standard deviations of haematological parameters analysed immediately after collection were: RBC: 2,07 x106/µL ± 0,40; hematocrit: 38,08%± 5,93; haemoglobin: 11.33g/dL±2.15; MCV:186.52 fL±21.72; MCHC: 29.68g/dL±2.56; MCH: 55.08pcg±5,94; total leucocytes: 8.142/µL±2.441; neutrophils: 5.913/µL±2.168; lymphocytes: 1.460/ µL±740; eosinophil: 522/µL±385; monocytes: 247/µL±176; thrombocytes: 123.458/ µL±31.362 and total plasma protein: 6.23g/dL±0.49. This data shows evidence of the existence of important differences between these values and others from other areas, either from Brazil or from other South American countries. Those variations might be connected to environment, genetic, nutritional and/or management factors. Regarding the storage effect analysis, it can be concluded that in giant anteaters, haematological analysis can be performed until 24h after collection without any significant alterations on the haematological parameters, except for thrombocytes. Concerning the different EDTA concentrations, it can be concluded that there are no quantitative differences in haematological variables. Nevertheless, relevant morphologic alterations in blood cells can be observed after a 24h storage period, being most noticeable in the leucocytes. Those alterations can lead to misinterpretation of the results, interfering diagnosis, prognosis and treatment. (6,23g/dL±0,49). Tais dados permitem afirmar que existem importantes diferenças entre os valores hematoló-gicos destes em relação aos animais provenientes de outras regiões, tanto do Brasil quanto de outros países da América do Sul. Provavelmente, tais divergências estão associadas a fatores ambientais, genéticos, nutricionais e/ou de manejo. Quanto à análise das amostras estocadas, conclui-se que, em tamanduás-bandeiras, as amostras para a realização de hemograma podem ser processadas até 24 horas após a...

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Section: Resultscontrasting

confidence: 79%

Section: Resultsmentioning

confidence: 55%

Section: Resultsmentioning

confidence: 67%

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Giant Anteater (Myrmecophaga tridactyla Linnaeus, 1758) of the brazilian cerrado: hematology and storage effect

Oliveira

Trentin²,

Vila

et al. 2017

Pesq. Vet. Bras.

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“…They are members of Superorder Xenarthra belonging to family Pilosa (SANCHEZ et al, 2013), previously described as family Mymercophagidae (SHAW;MCDONALD, 1987;ROSSI et al, 2012). This family of mammals constitute an important conservation group, because is highly vulnerable, according to Brazilian Official List of Species Threatened with Extinction (CRUZ et al, 2013;IBAMA, 2016) and "near threatened" in Red List of the International Union for Conservation of Nature (ROSSI et al, 2012;CRUZ et al, 2013;IUCN, 2015) and since 2003 is included in the Appendix II of the Convention on International Trade in Endangered Species (SANCHES et al, 2013). Although in recent years, M. tridactyla is threatened with extinction, it had a much wider geographical distribution in past times, inhabiting even other sub-continents, such as North America according to the discovery of fossil records (SHAW;MCDONALD, 1987).…”

Section: Introductionmentioning

confidence: 99%

Morphology of the adrenal glands of giant anteater (Myrmecophaga tridactyla, Linnaeus, 1758) of wild life

et al. 2016

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ABSTRACT:The Myrmecophaga tridactyla (family Pilosa), popularly known in Brazil as the giant anteater is classified as an endangered species by the main survey agencies of biodiversity preservation around the world. The adrenal glands are important organs, which are related to homeostasis of the animal. This study aimed to describe the morphology of the adrenal glands of M. tridactyla, providing data for future studies related to the production of steroid hormones in specimens exposed to different stress factors. The adrenal glands of 14 specimens were used. The glands were measured, photodocumented and described by light microscopy. The adrenals were positioned in the cranial extremity of the kidneys (left and right) and related medially to the caudal vena cava. The right adrenal gland had an elongated shape while the left adrenal gland had pyramidal or triangular shape. The weight was 4.765±0.129g for the right adrenal and 3.975±0.213g for the left adrenal. The length was 4.50±0.14cm for the right adrenal and 4.28±0.11cm for the left adrenal. The width was 2.60±0.13cm for the right adrenal and 2.37±0.12cm for the left adrenal. The thickness was 0.45±0.11cm for the right adrenal and 0.68±0.14cm for the left adrenal. Statistical differences (p<0.05) between right and left adrenals for all values analyzed were observed. Microscopically it was observed a capsule composed by modeled dense connective tissue lining the organ. Below this capsule, from the outermost to the innermost layer, it was observed a cortical region divided into glomerular, fasciculata and reticular zones with a medullar region occupying the center of the organ. Further studies related to steroidogenesis with specimens collected at different periods of the year are necessary, aiming to observe if there are morphological or hormonal variations in the adrenal glands due to seasonal periods. This information would be of great importance because it could reflect the behavioral habits of this species.

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“…Si bien existen reportes de algunos valores del per l hematológico y bioquímico sérico del oso hormiguero gigante (Rosenfeld & Hoehne, 1953;Ruempler, 1995;Satake, 2002;Mussart et al, 2006;Neves unior et al, 2006;ISIS, 2013;Sanches et al, 2013) los mismos no sólo no son abundantes sino que además son variables. Esta escasez di culta la interpretación de los exámenes, pudiendo dar como resultado diagnósti-cos indeterminados o incorrectos (Sanches et al, 2012).…”

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Valores Hematológicos y Bioquímica Sanguínea en Osos Hormigueros Gigantes (Myrmecophaga tridactyla) Cautivos en Argentina

Nucci¹,

Marc²,

Jimeno³

et al. 2014

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Hematology values of captive giant anteaters (Myrmecophaga tridactyla) and collared anteaters (Tamandua tetradactyla)

Cited by 17 publications

References 4 publications

Giant Anteater (Myrmecophaga tridactyla Linnaeus, 1758) of the brazilian cerrado: hematology and storage effect

Giant Anteater (Myrmecophaga tridactyla Linnaeus, 1758) of the brazilian cerrado: hematology and storage effect

Morphology of the adrenal glands of giant anteater (Myrmecophaga tridactyla, Linnaeus, 1758) of wild life

Valores Hematológicos y Bioquímica Sanguínea en Osos Hormigueros Gigantes (Myrmecophaga tridactyla) Cautivos en Argentina

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