Baseline Endocrine, Hematology and Serum Biochemistry Value in Wild Animals

A special issue of Animals (ISSN 2076-2615). This special issue belongs to the section "Wildlife".

Deadline for manuscript submissions: closed (15 December 2021) | Viewed by 7839

Special Issue Editors


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Department of Veterinary Medicine and Animal Sciences, University of Milan, 26900 Lodi, Italy
Interests: veterinary transfusion medicine; blood types; canine internal medicine; veterinary dermatology; infectious diseases
Special Issues, Collections and Topics in MDPI journals
Department of Veterinary Medicine and Animal Sciences, University of Milan, 26900 Lodi, Italy
Interests: veterinary transfusion medicine; blood types; feline internal medicine; infectious diseases; epidemiology
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
School of Agriculture and Food Sciences, Faculty of Science, University of Queensland, Gatton, Australia
Interests: animal welfare; conservation biology; conservation physiology; neuroendocrinology; production animal health and welfare; reproductive health; stress; immune system; zoology
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Globally, wildlife is facing immense threats because of anthropogenic activities. The preservation of the health of native, rare, and endangered wildlife is fundamental for its conservation. Knowledge of reference biological values, often called ‘normal’ values, is crucial when interpreting endocrine, hematological, and serum chemistry data from animals. Even for wild animals, the establishment of such reference values is mandatory to assess the health status of individuals and populations. For captive or wild animals, the selection of ‘healthy, normal’ individuals is often problematic, due to the difficulties posed by their clinical examination. Furthermore, it is often difficult to obtain a large sample of a population, and many circumstances can influence the blood or serum concentrations of the factors to be examined. In wildlife, many variables could significantly influence animals’ biological parameters: the wild or captive habitat, wildlife management, seasonal changes, breeding, migrations, food availability, subclinical diseases or stress caused by living in too restricted areas, separated from other animals, or by the process of animal capturing and sampling. It is necessary to increase our knowledge of the “normal values” of laboratory parameters by pooling the available data and considering possible sources of bias. In this way, it would be possible to create a database that can help define these normal values in wild species. Improving our knowledge of this topic is key to improving wildlife healthcare and contributing to its conservation. For this Special issue, we welcome research papers from wildlife researchers operating in universities, zoos, wildlife sanctuaries, etc., discussing novel or established research-based baseline physiological data. Papers on analyses across study systems and in a global context are welcome.

Prof. Daniela Proverbio
Prof. Eva Spada
Dr. Edward Narayan
Guest Editors

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Keywords

  • wildlife
  • hematological and serum biochemical values
  • biological parameters
  • reference values
  • hormonal parameters

Published Papers (3 papers)

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Research

10 pages, 263 KiB  
Article
Hematological and Biochemical Reference Values in Healthy Captive Tigers (Panthera tigris)
by Daniela Proverbio, Roberta Perego, Luciana Baggiani, Giuliano Ravasio, Daniela Giambellini and Eva Spada
Animals 2021, 11(12), 3440; https://doi.org/10.3390/ani11123440 - 2 Dec 2021
Cited by 4 | Viewed by 2173
Abstract
The tiger (Panthera tigris) is an endangered species. The health of individuals is important and any data on hematological and biochemical blood values can provide valuable information; when combined with physical assessment. This data assists in both the diagnosis of disease [...] Read more.
The tiger (Panthera tigris) is an endangered species. The health of individuals is important and any data on hematological and biochemical blood values can provide valuable information; when combined with physical assessment. This data assists in both the diagnosis of disease and some conservation strategies. The behavior of wild tigers makes it is extremely difficult to obtain biological samples from free-living subjects, therefore, data collected from captive tigers is highly valuable. The aim of this study was to provide additional information for the values of hematological and serum biochemical parameters in healthy captive tigers. Blood samples were collected from 22 clinically healthy tigers (Panthera tigris). The following parameters were analyzed: glucose, urea, creatinine, alanine aminotransferase (ALT), alkaline phosphatase (ALP), total protein (TP) and red blood cells (RBCs), hemoglobin (Hb), hematocrit (Hct) and red cell indices; such as mean cell volume (MCV), mean cell Hb (MCH), mean cell Hb concentration (MCHC), platelet (PLT) and white blood cells (WBCs). The mean hematological values in our tiger population were not significantly different when compared with the same parameters in the previously studied tiger population. The mean values of RBCs and PLT were statistically significantly higher and the mean values of Hb, PCV, MCV, MCH, MCHC, and WBC were lower than the mean values obtained in previous studies on the Amur tiger. Further investigation of captive and free-living tigers is needed to identify the normal ranges for parameters in this endangered species. Full article
14 pages, 1572 KiB  
Article
Blood Profiling of Captive and Semi-Wild False Gharial in Peninsular Malaysia
by Mohd Qayyum Ab Latip, Tengku Rinalfi Putra Tengku Azizan, Hafandi Ahmad, Hasliza Abu Hassim, Mohd Hezmee Mohd Noor and Muhammed Mikail
Animals 2021, 11(6), 1481; https://doi.org/10.3390/ani11061481 - 21 May 2021
Cited by 1 | Viewed by 2226
Abstract
The involvement of veterinary medicine in wildlife research has played an important role in understanding the health status of various wildlife species. Health status is a very important aspect of species conservation. However, it requires a widely employed knowledge of veterinary clinical pathology, [...] Read more.
The involvement of veterinary medicine in wildlife research has played an important role in understanding the health status of various wildlife species. Health status is a very important aspect of species conservation. However, it requires a widely employed knowledge of veterinary clinical pathology, as a diagnostic tool in diagnosing the various disease conditions of wildlife species. Notwithstanding, a gap exists in the literature about the clinical pathology of the false gharial, due to the lack of normal reference values for hematological and serum biochemical analysis. The present study investigated the normal blood profile of 10 healthy false gharials, from two different zoos, and wildlife conservation centers located in three different states of Peninsular Malaysia. Blood samples were collected from the lateral caudal vein and divided into a vacutainer without anticoagulant for biochemical analysis, and a lithium heparin vacutainer (containing sodium heparin) for hematological studies. The results of the study indicated that the false gharial has a smaller erythrocyte dimension compared to other crocodilian species. At the same time the study revealed that the false gharial in a natural captive pond showed more leukocytes than false gharial kept in zoos, hence, habitat and environmental factors significantly affect hematological values. The biochemistry values also showed differences between the false gharial in different environmental conditions. Total protein, albumin (Alb), globulin (Glob), and Alb: Glob ratio were higher in false gharials kept in wildlife conservation centers than in false gharials kept in zoos. The values obtained in this study provide baseline data of hematological and serum biochemical values of the false gharial for future research and routine clinical diagnosis. Full article
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8 pages, 244 KiB  
Communication
Hematology and Blood Chemistry Reference Values of Captive Adult Black-Faced Ibis (Theristicus melanopis melanopis)
by Alonso Silva, Paola Mujica, Evelyn Valdés and Hernan Cañon-Jones
Animals 2020, 10(12), 2227; https://doi.org/10.3390/ani10122227 - 27 Nov 2020
Cited by 3 | Viewed by 2268
Abstract
Hematology and blood chemistry reference values in wildlife animals are considered a key element to evaluate their health and welfare status. The incidence of birds rescued is increasing, thus, rehabilitation centers worldwide need valid reference values to improve medical care for wild individuals. [...] Read more.
Hematology and blood chemistry reference values in wildlife animals are considered a key element to evaluate their health and welfare status. The incidence of birds rescued is increasing, thus, rehabilitation centers worldwide need valid reference values to improve medical care for wild individuals. The objective of this study was to obtain the reference values of the adult black-faced ibis (Theristicus melanopis). Blood was taken from adult rehabilitated birds and analyzed to obtain red and white line values such as hematocrit, hemoglobin, mean corpuscular volume (MCV), mean corpuscular hemoglobin (MCH), mean corpuscular hemoglobin concentration (MCHC), heterophils, lymphocytes, monocytes, eosinophils and basophils. Values for blood glucose, proteins, albumin, globulin, calcium, phosphorus, blood urea nitrogen (BUN), creatinine, alkaline phosphatase, aspartate aminotransferase (AST), gamma-glutamyl transpeptidase (GGT), lactate dehydrogenase (LDH), creatine phosphokinase (CPK) and albumin:globulin (A/G) ratio were also obtained. The results were similar to others reported for species of the Threskiornithidae family (bald, glossy and Puna ibises), but showed higher values for white blood cells (WBC), heterophils, monocytes and heterophil-lymphocyte (H/L) ratio, but lower values for basophils and eosinophils. Moreover, higher values in albumin, BUN and CPK were observed. This is the first report of the hematology references values for the black-faced ibis showing differences to other closely related species. The results may be of use in rescue and rehabilitation centers for animal welfare and health assessments of the black-faced ibis. Full article
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