scholarly journals INTERPRETATION OF INJURIES AND ASSESSMENT OF CAUSES OF DEATH IN WILD MAMMALS RECEIVED AT CETAS / IBAMA IN RIO BRANCO, ACRE, BRAZIL:

2021 ◽  
Vol 1 (2) ◽  
Author(s):  
Raimunda Beserra da Silva ◽  
Giovana Barbosa Morais ◽  
Luis Eduardo Maggi ◽  
Vanessa Lima de Souza ◽  
Yuri Karaccas de Carvalho ◽  
...  
Keyword(s):  
Causes Of Death ◽  
Hypovolemic Shock ◽  
Standard Technique ◽  
Wild Animal ◽  
Wild Animals ◽  
Wild Mammals ◽  
In Captivity ◽  
Hematoxylin And Eosin ◽  
Hematoxylin And Eosin Staining ◽  
Causes Of Deaths

The necropsy of wild animals is necessary to raise the awareness of the competent public organizations and the population about the risks of zoonosis. Given the scarcity of information the aim of this article was to survey of the main injuries and causes of deaths of wild mammals kept in captivity was made, through the post mortem diagnosis and who passed through Wild Animal Screening Center (Centro de Triagem de Animais Silvestres - CETAS) of Rio Branco - Acre, Brazil, from September 2012 to September 2015. After death, the animals were kept refrigerated or frozen until the time of necropsy, using the standard technique for small mammals. Fragments of organs and tissues were collected, and the material was processed for histopathology using formalin fixation (10%), paraffin impregnation, hematoxylin and eosin staining, in 4 µm thick sections. 42 animals were submitted to necropsy, 27 males (64.3%) and 15 females (35.7%), of which 21 were adults (50%), 15 were puppies (35.7%) and six were young (14.3%). The main cause of death was hypovolemic shock (11.6%), followed by starvation (9.3%). There were also many deaths from undetermined causes (11.6%). A greater occurrence of deaths was registered in the Guariba monkey (Alouatta senicullus). The identification of necropsy findings and the interpretation of macroscopic lesions showed that cardiovascular lesion was the most common deaths. There does not seem to be an influence between the dry and rainy periods on the number of deaths of these animals.

scholarly journals Endoparasites in group of wild animals raised in captivity

2021 ◽  
Vol 41 ◽  
Author(s):  
Aline Mewius ◽  
Elis Regina Lusa ◽  
Julia G. Pertille ◽  
Tiago D. Dos Reis ◽  
Juliana A. Pletsch ◽  
...  
Keyword(s):  
Zinc Sulfate ◽  
Parasitic Infection ◽  
Sulfate Solution ◽  
Wild Animals ◽  
Rio Grande Do Sul ◽  
Free Living ◽  
Wild Mammals ◽  
Main Structure ◽  
In Captivity ◽  
Flotation Method

ABSTRACT: Free-living wild animals can host a wide variety of endoparasites. When subjected to conditions of captivity, these animals can go through stressful situations and develop parasites. Therefore, the objective of this study was to identify parasitic infection in wild mammals, birds, and reptiles kept at the “Universidade de Caxias do Sul” Zoo, in Rio Grande do Sul state, Brazil. The population studied was based on 76 animals, divided into 50% (38/76) birds, 35.53% (27/76) mammals, and 14.47% (11/76) reptiles distributed in 33 different enclosures. Fecal samples were collected from the enclosures and analyzed in triplicate, using the centrifugal-flotation method with a zinc sulfate solution. Samples from the enclosures 31, 32, 33, (where snakes are located), and 15 (animal death), were not analyzed in triplicate, so the total number of analyses was 91 samples. The results showed that 41.76% (38/91) of the samples were positive for at least one class of endoparasites, such as Nematoda, Cestoda, or Coccidia. The positive samples showed the presence of at least one or more parasites from orders Strongylida (34.21%), Enoplida and Strongylida (23.68%), Enoplida only (23.68%), Cyclophyllidea and Oxyurida (5.26%), Ascaridida only (5.26%), Enoplida, Strongylida, and Ascaridida (5.26%), and Enoplida and Eucoccidiorida (2.63%). Considering the positive samples, 55.26% were collected from birds, 39.47% from mammals, and 5.27% from reptiles. Capillaria sp. eggs were the main structure found in birds, and eggs from the order Strongylida were the most found in samples from mammals. This study showed the order Strongylida as the most frequent parasite found in 63.16% of the total samples, established either in isolated or mixed infestations. Also, mammals and birds were those with a greater quantity of positive samples for endoparasites. Therefore, this study emphasizes the importance of carrying out research assessing the gastrointestinal parasitic fauna in wild animals, so one can determine the conditions under which these parasites become pathogenic to wild animals raised in captivity.

scholarly journals Wild Mammals in the Economy of Wrocław (Poland) as an Example of a Medieval and Modern Era City in the Light of Interdisciplinary Research

Animals ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 2562
Author(s):  
Marta Pietruszka ◽  
Jerzy Piekalski
Keyword(s):  
Material Culture ◽  
Low Frequency ◽  
Wild Animal ◽  
Wild Animals ◽  
Product Price ◽  
Animal Products ◽  
Wild Mammals ◽  
Wild Game ◽  
Animal Remains ◽  
Cultural Layers

The purpose of this article was to determine the role of wild animals in the economy of a historical city on the basis of archaeological and cultural layers of medieval and early modern Wrocław from the 11th to the 17th century. Archaeozoological analyses were applied, mainly encompassing the percentage share of particular animal species and the research of material culture, i.e., items manufactured from bones, antlers and hides of wild animals. The collected data were compared with written sources. As a result of the following analysis, a low but stable frequency of bone remains in urban layers and is evidence for occasional breaching of the medieval hunting laws by burghers, possibly driven by the opportunity to sell meat and other wild animal products on the markets. Moreover, the relatively low amounts of items made from bones, antlers and wild animal leather may indicate low availability or seasonality (shed antler) of the materials, which might have indirectly raised the product price. Additionally, the area around Wrocław did not feature large forest complexes, which are habitats of wild game, thus explaining the low frequency of wild animal remains in the archaeozoological material.

scholarly journals Effect of captivity on morphology: negligible changes in external morphology mask significant changes in internal morphology

2018 ◽  
Vol 5 (5) ◽  
pp. 172470 ◽  
Author(s):  
Stephanie K. Courtney Jones ◽  
Adam J. Munn ◽  
Phillip G. Byrne
Keyword(s):  
Sexual Dimorphism ◽  
Captive Breeding ◽  
Morphological Changes ◽  
External Morphology ◽  
Wild Animals ◽  
Internal Morphology ◽  
In Captivity ◽  
Two Generations ◽  
Breeding Programmes ◽  
Source Populations

Captive breeding programmes are increasingly relied upon for threatened species management. Changes in morphology can occur in captivity, often with unknown consequences for reintroductions. Few studies have examined the morphological changes that occur in captive animals compared with wild animals. Further, the effect of multiple generations being maintained in captivity, and the potential effects of captivity on sexual dimorphism remain poorly understood. We compared external and internal morphology of captive and wild animals using house mouse ( Mus musculus ) as a model species. In addition, we looked at morphology across two captive generations, and compared morphology between sexes. We found no statistically significant differences in external morphology, but after one generation in captivity there was evidence for a shift in the internal morphology of captive-reared mice; captive-reared mice (two generations bred) had lighter combined kidney and spleen masses compared with wild-caught mice. Sexual dimorphism was maintained in captivity. Our findings demonstrate that captive breeding can alter internal morphology. Given that these morphological changes may impact organismal functioning and viability following release, further investigation is warranted. If the morphological change is shown to be maladaptive, these changes would have significant implications for captive-source populations that are used for reintroduction, including reduced survivorship.

Presence and significance of NK cells in glioblastomas

1989 ◽  
Vol 70 (5) ◽  
pp. 728-731 ◽  
Author(s):  
Jesús Vaquero ◽  
Santiago Coca ◽  
Santiago Oya ◽  
Roberto Martínez ◽  
Josefa Ramiro ◽  
...  
Keyword(s):  
Monoclonal Antibody ◽  
Nk Cells ◽  
Survival Time ◽  
Tumor Cells ◽  
Lymphocytic Infiltration ◽  
Surface Marker ◽  
Content Type ◽  
Hematoxylin And Eosin ◽  
Hematoxylin And Eosin Staining ◽  
Fine Print

✓ A monoclonal antibody against the surface marker IOT-10 of natural killer (NK) cells was used to investigate the presence of these cells in a series of 25 glioblastomas. In 40% of the tumors, IOT-10-positive NK cells were found in small numbers scattered among the tumor cells. The presence of IOT-10-positive NK cells was not related to the degree of lymphocytic infiltration in the tumor as demonstrated by hematoxylin and eosin staining, nor did it appear to influence the survival time of the patients studied.

scholarly journals Complement C9 expression is associated with damaged myocardial cells in pediatric sudden death cases of fulminant myocarditis

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Akari Takaya Uno ◽  
Masahito Hitosugi ◽  
Mami Nakamura ◽  
Tomoyuki Nakanishi ◽  
Takahiro Mima ◽  
...  
Keyword(s):  
Sudden Death ◽  
Acute Myocarditis ◽  
Lymphocytic Infiltration ◽  
Pericardial Fluid ◽  
Sirtuin 1 ◽  
Fulminant Myocarditis ◽  
Myocardial Cells ◽  
Hematoxylin And Eosin ◽  
Hematoxylin And Eosin Staining ◽  
Complement C9

Abstract Background Because disease progression is so fast in sudden death of acute fulminant myocarditis, damage of myocardial cells is not evident in routine hematoxylin and eosin staining. To understand damage to myocardial cells and the mechanism of sudden death, immunohistochemical staining was performed for two forensic autopsy cases. Case presentation The patients were a healthy 5-year-old girl and 8-year-old boy. They suddenly died within 2 days of appearance of flu-like symptoms. An autopsy showed accumulation of yellowish-clear pericardial fluid containing fibrin deposits, fluid blood in the heart, and congestion of visceral organs. Histologically, minor necrosis or degeneration of myocardial cells with mainly lymphocytic infiltration was observed sometimes in tissue sections. Immunohistochemically, positive complement C9 staining and negative sirtuin 1 staining were found. These findings suggested wide damage of myocardial cells, even in regions with no marked changes in myocardial cells with hematoxylin and eosin staining. These areas corresponded to those with strong accumulation of lymphocytes. Conclusions Immunohistochemistry for complement C9 and sirtuin 1 might become a new tool for evaluating damage of myocardial cells of fulminant acute myocarditis.

scholarly journals Numerical assessment in the wild: insights from social carnivores

2018 ◽  
Vol 373 (1740) ◽  
pp. 20160508 ◽  
Author(s):  
Sarah Benson-Amram ◽  
Geoff Gilfillan ◽  
Karen McComb
Keyword(s):  
Cognitive Abilities ◽  
Future Research ◽  
Wild Animals ◽  
Playback Experiments ◽  
Natural Habitats ◽  
Numerical Assessment ◽  
Individual Discrimination ◽  
In Captivity ◽  
Assessment Skills ◽  
In The Wild

Playback experiments have proved to be a useful tool to investigate the extent to which wild animals understand numerical concepts and the factors that play into their decisions to respond to different numbers of vocalizing conspecifics. In particular, playback experiments have broadened our understanding of the cognitive abilities of historically understudied species that are challenging to test in the traditional laboratory, such as members of the Order Carnivora. Additionally, playback experiments allow us to assess the importance of numerical information versus other ecologically important variables when animals are making adaptive decisions in their natural habitats. Here, we begin by reviewing what we know about quantity discrimination in carnivores from studies conducted in captivity. We then review a series of playback experiments conducted with wild social carnivores, including African lions, spotted hyenas and wolves, which demonstrate that these animals can assess the number of conspecifics calling and respond based on numerical advantage. We discuss how the wild studies complement those conducted in captivity and allow us to gain insights into why wild animals may not always respond based solely on differences in quantity. We then consider the key roles that individual discrimination and cross-modal recognition play in the ability of animals to assess the number of conspecifics vocalizing nearby. Finally, we explore new directions for future research in this area, highlighting in particular the need for further work on the cognitive basis of numerical assessment skills and experimental paradigms that can be effective in both captive and wild settings. This article is part of a discussion meeting issue ‘The origins of numerical abilities’.

scholarly journals China's Legal Response to Trafficking in Wild Animals: The Relationship between International Treaties and Chinese Law

AJIL Unbound ◽  
2017 ◽  
Vol 111 ◽  
pp. 408-412 ◽  
Author(s):  
Jiwen Chang
Keyword(s):  
Raw Materials ◽  
Wild Animal ◽  
Food Culture ◽  
Wild Animals ◽  
International Treaties ◽  
Ecological Civilization ◽  
Animal Products ◽  
Wild Fauna ◽  
The Government ◽  
Bear Bile

In China, the wild animals and animal products that are sold through illegal trafficking are mainly those that can be made into medicines; are raw materials in the form of ivory, rhinoceros horns, and turtle shells; and are edible or have ornamental value, such as birds, monkeys, turtles, and lizards. Due to its rapid economic development over the past decade, China has become one of the world's largest wildlife markets. The main reasons for trafficking are a lack of viable substitutes for raw materials used in traditional Chinese medicines (e.g., bear bile, bear bile powder, pangolin, and other products); a preference in traditional food culture for delicacies made from wildlife; and of the private consumption by some rich and corrupt government officials of tiger's meat, bear's paw, pangolin and other wild animal products—bear's paw and pangolin being the most popular. This type of wild animal trafficking endangers the safety of animal species protected by the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES), and damages the international image of the government and people of China. Since 2013, under the frame of construction of ecological civilization, China has taken stricter measures on legislation, administrative enforcement, judicial adjudication, and international cooperation on prevention and punishment of illegal trafficking.

Causes of disease and causes of death

1997 ◽  
Vol 12 (2) ◽  
pp. 189-198 ◽  
Author(s):  
K. CODELL CARTER
Keyword(s):  
Causes Of Death ◽  
Social Role ◽  
Parallel Change ◽  
The Social ◽  
Causes Of Disease ◽  
Apparent Reason ◽  
Almost All ◽  
Causes Of Deaths ◽  
Fixed System

In early-nineteenth-century medical literature, one finds an elegant symmetry between causes of disease and causes of death: both were sufficient causes of particular events. However, as I will argue, by the end of the century physicians no longer sought sufficient causes of individual disease episodes – instead almost all of medical research was organized around the quest for necessary causes that were shared by all the episodes of each particular disease. Such causes carried great practical and theoretical advantages: they enabled physicians to control and to explain disease phenomena.One might wonder why there has been no parallel change in our thinking about causes of death; to this very day, causes of death are sufficient causes of particular events. In principle there is no apparent reason why we could not identify necessary causes for classes of deaths – indeed, we sometimes do so. But, in the case of death, such causes hold little interest. Because of how they are used, sufficient causes for individual deaths are more interesting and more important to us than are necessary causes of deaths. Thus, the change in thinking about causes of disease – the change that destroyed the symmetry between causes of disease and causes of death – may not reflect simply progress within a fixed system of medical goals and values, but a profound change in the social role of physicians.

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