scholarly journals Oral adenocarcinoma observed in Boa constrictor maintained in captivity

2022 ◽  
Vol 43 (2) ◽  
pp. 895-900
Author(s):  
Washington Luiz Assunção Pereira ◽  
◽  
Marcella Katheryne Marques Berna ◽  
Antônio Messias Costa ◽  
Aline Amaral Imbeloni ◽  
...  
Keyword(s):  
Malignant Neoplasms ◽  
Surgical Removal ◽  
Moderate Degree ◽  
Wild Animals ◽  
Surface Color ◽  
Oral Tumor ◽  
Boa Constrictor ◽  
In Captivity ◽  
Margin Of Safety ◽  
Degree Of Differentiation

Information on neoplasms in animals has increased over time, and these studies have helped in the management of reptiles that present tumors. There are similar incidences of neoplasms between homeothermic and ectothermic animals. Furthermore, there are usually more than one type of tumor present. The treatment of wild animals afflicted with cancer usually happens late, contributing to their low life expectancy. Thus, the present work aimed to describe an infrequent case of oral tumor in Boa constrictor. The tumor was observed in an adult female animal, raised in an exhibition area of the Zoo and Botanical Park of the Emílio Goeldi Museum, located in Belém, State of Pará, Brazil. Macroscopically, the mass presented morphologically with an irregular, multilobulated surface, color that varied from white to grey, hemorrhagic areas and its extension was 3.9 x 2.3 cm. The neoplasm was surgically removed, and the histopathological evaluation revealed an adenocarcinoma, with a papillary-like development pattern and a moderate degree of differentiation. The animal died three months after diagnosis due to starvation. The necropsy showed that there was tumor recrudescence and no metastases. Given the impossibility of surgical removal with a greater margin of safety, and adjuvant therapies, this condition favoured the resurgence of the neoplasm. This compromised the animal’s ability to feed and consequently lead to death. Malignant neoplasms in reptiles may have an unfavourable clinical evolution for the maintenance of life, requiring specific therapeutic care such as chemotherapy. Scientific contributions on tumors in these animals are essential for the medical treatment of wild animals, and the conservation of wild species.

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.

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’.

Geochemical characteristics and geologic significance of rare earth elements in oil shale of the Yan’an Formation in the Tanshan area, in the Liupanshan Basin, China

2021 ◽  
pp. 1-41
Author(s):  
Lianfu Hai ◽  
Qinghai Xu ◽  
Caixia Mu ◽  
Rui Tao ◽  
Lei Wang ◽  
...  
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
Oil Shale ◽  
Sedimentary Environment ◽  
Moderate Degree ◽  
Material Source ◽  
Icp Ms ◽  
Ree Distribution ◽  
Heavy Rare Earth Elements ◽  
Degree Of Differentiation

In the Tanshan area, which is at the Liupanshui Basin, abundant oil shale resources are associated with coals. We analyzed the cores, geochemistry of rare earth elements (REE) and trace element of oil shale with ICP-MS technology to define the palaeo-sedimentary environment, material source and geological significance of oil shale in this area. The results of the summed compositions of REE, and the total REE contents (SREE), in the Yan'an Formation oil shale are slightly higher than the global average of the composition of the upper continental crustal (UCC) and are lower than that of North American shales. The REE distribution pattern is characterized by right-inclined enrichment of light rare earth elements (LREE) and relative loss of heavy rare earth elements (HREE), which reflects the characteristics of crustal source deposition. There is a moderate degree of differentiation among LREE, while the differences among HREE are not obvious. The dEu values show a weak negative anomaly and the dCe values show no anomaly, which are generally consistent with the distribution of REE in the upper crust. The characteristics of REE and trace elements indicate that the oil shale formed in an oxygen-poor reducing environment and that the paleoclimatic conditions were relatively warm and humid. The degree of differentiation of REE indicates that the sedimentation rate in the study area was low, which reflected the characteristics of relatively deep sedimentary water bodies and distant source areas. The results also proved that the source rock mainly consisted of calcareous mudstone, and a small amount of granite was also mixed in.

Surgical Management of Bilateral Epulides in a Sloth Bear (Melursus ursinus) at Nandankanan Zoological Park

2021 ◽  
Author(s):  
I. Nath ◽  
S.K. Sahu ◽  
S.K. Panda ◽  
N. Sahoo ◽  
A.K. Das
Keyword(s):  
Retrospective Study ◽  
Oral Cavity ◽  
Wild Animals ◽  
Dental Pathology ◽  
In Captivity ◽  
Normal Feeding ◽  
Upper Jaw ◽  
Sloth Bear ◽  
Melursus Ursinus ◽  
Zoological Park

Background: Epulides, tumors of periodontal origin, are commonly reported in dogs and infrequently in cats. But its documentation among wild animals is scarce. Retrospective study of the available literature did not find any report of epulis in sloth bears, though dental pathology is common in captive sloth bears. The present study depicts the details about an incidence of bilateral epulides in a captive sloth bear of Nandankanan Zoological Park, Bhubaneswar, India and its successful surgical management.Methods: A male sloth bear aged about 15 years, developed bilateral swellings at the upper jaw, protruding out of the oral cavity, impeding with its normal feeding and drinking. Close physical examination under general anaesthesia revealed that the swellings are bilateral epulides at the upper jaw involving canines of both sides. The epulides were surgically excised, histopathology of the excised mass was conducted and a course of antibiotic treatment was followed.Result: The epulides were found to be of fibromatous and ossifying type. In the present case, there was no recurrence of epulides at the surgical site after their excision and the procedure proved curative. This work is a complementary contribution to the dental pathology study of sloth bears in captivity. 

scholarly journals Estimating the Cultural Value of Wild Animals in the Qinling Mountains, China: A Choice Experiment

Animals ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 2422
Author(s):  
Yilei Hou ◽  
Tianle Liu ◽  
Zheng Zhao ◽  
Yali Wen
Keyword(s):  
Willingness To Pay ◽  
Choice Experiment ◽  
Cultural Value ◽  
Wild Animals ◽  
Ecological Compensation ◽  
Ticket Pricing ◽  
Value Evaluation ◽  
Level Increase ◽  
In Captivity ◽  
Surrounding Areas

In this study, we use the choice experiment method to evaluate the value of wild animals in the surrounding areas of the Changqing National Nature Reserve in China. For areas focused on biodiversity conservation, the results of wild animal value evaluation can provide a basis for the formulation of local ecological compensation standards. We identified wild animals, natural landscape features, infrastructure and facilities, and ticket price as major attributes determining the utility and value of the reserve area. The results of our field survey suggest that the cultural value of wild animals is significantly higher than the value of the infrastructure and other natural landscapes. Tourists indicated a willingness-to-pay of 31.4 Yuan to see wild animals in captivity, compared to 71.9 Yuan to see wild animals in the field. Moreover, tourists with different characteristics have different preferences for the cultural value of wildlife. Female tourists have a higher willingness-to-pay than male tourists. In addition, as age, education, and income level increase, tourists’ willingness-to-pay also increases. These conclusions can provide a reference for local government to formulate wildlife protection compensation and ecotourism ticket pricing.

scholarly journals Two different clinical forms of squamous cell carcinoma (SCC) in the perineum and vulva of two mares

2020 ◽  
Vol 16 (1) ◽  
Author(s):  
Andrzej Raś ◽  
Iwona Otrocka-Domagała ◽  
Małgorzata Raś-Noryńska
Keyword(s):  
Squamous Cell Carcinoma ◽  
Cell Carcinoma ◽  
Squamous Cell ◽  
Ultrasound Examination ◽  
Histopathological Examination ◽  
Reproductive Organs ◽  
Malignant Neoplasms ◽  
Surgical Removal ◽  
Chemotherapy Treatment ◽  
Case Presentation

Abstract Background Genital malignant neoplasms in mares are relatively rare. The treatment involve surgical removal of the tumour masses, chemotherapy or both. Case presentation Two elderly warmblood mares, aged 16 and 20 were presented in University Clinic with the lumpy lesions at the region of perineum and left labia. Surgical removals of tumour masses were performed on standing animals. Removed tissues were subjected to histopathological examination which confirmed SCC. Conclusions Clinical and ultrasound examination of reproductive organs in both mares showed no inflammatory or neoplastic changes. Both mares healed within 2 weeks after surgery and showed no signs of tumour recurrence for the following year despite no chemotherapy treatment.

Captive Tiger Attack: Case Report and Review of the Literature

2007 ◽  
Vol 73 (5) ◽  
pp. 516-519 ◽  
Author(s):  
Henry J. Schiller ◽  
Daniel C. Cullinane ◽  
Mark D. Sawyer ◽  
Scott P. Zietlow
Keyword(s):  
Case Report ◽  
Wild Animals ◽  
Review Of The Literature ◽  
In Captivity ◽  
Large Predators

Tigers, as well as other large predators, are being held in private settings with increasing frequency. Unregulated private “zoos” are cropping up in many rural and suburban settings across the country. The number of attacks from captive predators also is on the rise. This case highlights the potentially violent and aggressive nature of wild animals held in captivity. Treatment principals and wounding patterns of large cat attacks are emphasized.

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