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https://www.readbyqxmd.com/read/28920823/diagnosis-and-treatment-of-a-unilateral-renal-cystadenoma-in-an-african-lion-panthera-leo
#1
Ronan Eustace, Jacob Rubin, Kimberly A Thompson, Kyle Snowdon, James G Sikarskie, Colleen Monahan, Rebecca C Smedley
A renal tubular cystadenoma was diagnosed in a 14-yr-old male African lion (Panthera leo). During a routine health evaluation, a left renal mass was identified via physical examination, radiographs, and abdominal ultrasonography. The mass was 30 × 15 cm in size and had a thin capsule with central hypoechoic fluid, suggestive of a perirenal cyst. An exploratory celiotomy with partial nephrectomy was performed without complications. Histologically, the tumor was characterized by a thick fibrous capsule surrounding multiple, variable-sized cysts that markedly compressed the adjacent fibrotic and atrophied renal cortex...
September 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/28920787/calcinosis-circumscripta-in-a-cohort-of-related-juvenile-african-lions-panthera-leo
#2
Kendra L Bauer, Samantha J Sander, James C Steeil, Timothy F Walsh, Donald L Neiffer
Three juvenile, genetically related African lions (Panthera leo) were evaluated for discrete dome-shaped subcutaneous masses present over the proximal lateral metatarsal-tarsal area. The lesions measured 3-8 cm in diameter, were fluctuant to firm, nonulcerated, and attached to underlying structures. On radiographic evaluation, the lesions were characterized by well-circumscribed punctate mineralizations in the soft tissue surrounded by soft tissue swelling without evidence of adjacent bony involvement. On cut surface, the lesions were made of numerous loculi containing 2-5-mm round-to-ovoid, white-to-gray, firm structures interspersed with fibrous tissue and pockets of serosanguinous fluid...
September 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/28902958/nonregenerative-immune-mediated-anemia-associated-with-a-diffuse-large-b-cell-lymphoma-in-a-captive-jaguar-panthera-onca
#3
Monika A Keresztes, Manfred Henrich, Penelope Baloi, Sascha Gerst, Jens-Christian Rudnick, Judith Langenstein, Andreas Moritz, Natali Bauer
An 18-year-old male castrated jaguar (Panthera onca) was presented with anorexia and continuous bleeding from the oral cavity after a history of fighting with the partner animal. Clinical evaluation revealed ulcerating lesions on the gingiva and hard palate and a hematoma on the tongue. Computed tomography of the head and endoscopic examination of the esophagus and stomach were unremarkable. Hematology and clinical chemistry revealed severe nonregenerative anemia, mild thrombocytopenia, and moderate azotemia...
September 13, 2017: Veterinary Clinical Pathology
https://www.readbyqxmd.com/read/28884827/linking-social-and-spatial-networks-to-viral-community-phylogenetics-reveal-subtype-specific-transmission-dynamics-in-african-lions
#4
Nicholas M Fountain-Jones, Craig Packer, Jennifer L Troyer, Kimberly VanderWaal, Stacie Robinson, Maude Jacquot, Meggan E Craft
1.Heterogeneity within pathogen species can have important consequences for how pathogens transmit across landscapes; however, discerning different transmission routes is challenging. 2.Here we apply both phylodynamic and phylogenetic community ecology techniques to examine the consequences of pathogen heterogeneity on transmission by assessing subtype specific transmission pathways in a social carnivore. 3.We use comprehensive social and spatial network data to examine transmission pathways for three subtypes of feline immunodeficiency virus (FIVPle ) in African lions (Panthera leo) at multiple scales in the Serengeti National Park, Tanzania...
September 8, 2017: Journal of Animal Ecology
https://www.readbyqxmd.com/read/28854258/temporal-variation-in-black-caiman-nest-predation-in-varzea-of-central-brazilian-amazonia
#5
Kelly Torralvo, Robinson Botero-Arias, William E Magnusson
On the Amazon floodplain, the main predators of black caiman (Melanosuchus niger) eggs are jaguars (Panthera onca), tegu lizards (Tupinambis teguixim), capuchin monkeys (Sapajus macrocephalus) and humans (Homo sapiens). In this study, we investigated the relationship between predator attacks on nests and incubation period, and evaluated the influence of initial predation on subsequent predation in the Mamirauá Sustainable Development Reserve. We also evaluated the influence of presence of females near the nests and manipulation of nests on the occurrence of attacks...
2017: PloS One
https://www.readbyqxmd.com/read/28851952/conservation-priorities-for-endangered-indian-tigers-through-a-genomic-lens
#6
Meghana Natesh, Goutham Atla, Parag Nigam, Yadvendradev V Jhala, Arun Zachariah, Udayan Borthakur, Uma Ramakrishnan
Tigers have lost 93% of their historical range worldwide. India plays a vital role in the conservation of tigers since nearly 60% of all wild tigers are currently found here. However, as protected areas are small (<300 km(2) on average), with only a few individuals in each, many of them may not be independently viable. It is thus important to identify and conserve genetically connected populations, as well as to maintain connectivity within them. We collected samples from wild tigers (Panthera tigris tigris) across India and used genome-wide SNPs to infer genetic connectivity...
August 29, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28841692/using-niche-modelling-and-species-specific-cost-analyses-to-determine-a-multispecies-corridor-in-a-fragmented-landscape
#7
Karen E DeMatteo, Miguel A Rinas, Juan Pablo Zurano, Nicole Selleski, Rosio G Schneider, Carina F Argüelles
Misiones, Argentina, contains the largest remaining tract of Upper Paraná Atlantic Forest ecoregion; however, ~50% of native forest is unprotected and located in a mosaic of plantations, agriculture, and pastures. Existing protected areas are becoming increasingly isolated due to ongoing habitat modification. These factors, combined with lower than expected regional carnivore densities, emphasize the need to understand the effect of fragmentation on animal movement and connectivity between protected areas...
2017: PloS One
https://www.readbyqxmd.com/read/28832728/mercury-content-in-the-fur-of-jaguars-panthera-onca-from-two-areas-under-different-levels-of-gold-mining-impact-in-the-brazilian-pantanal
#8
Joares A May, Howard Quigley, Rafael Hoogesteijn, Fernando R Tortato, Allison Devlin, Rui M DE Carvalho, Ronaldo G Morato, Leonardo R Sartorello, Lilian E Rampim, Mario Haberfeld, Rogério C DE Paula, Jairo José Zocche
The Pantanal is the largest inland wetland in the world and is under increasing anthropogenic threats, including long-term regionally intensive gold mining practices. Gold mining activities are known to cause the release of harmful pollutants such as mercury (Hg) to the surrounding environment. Jaguars (Panthera onca (Linnaeus, 1758)) are apex predators, and therefore show great potential to accumulate Hg by biomagnification. We hypothesize that total Hg content in the fur of jaguars from two sites within the Brazilian Pantanal would be significantly different as a function of distance from active gold mining operations...
August 17, 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/28831633/characterization-of-major-histocompatibility-complex-class-i-and-class-ii-drb-loci-of-captive-and-wild-indian-leopards-panthera-pardus-fusca
#9
Drashti R Parmar, Siuli Mitra, Snehalata Bhadouriya, Tirupathi Rao, Vaishnavi Kunteepuram, Ajay Gaur
The major histocompatibility complex (MHC), in vertebrate animals, is a multi-genic protein complex that encodes various receptors. During a disease, MHC interacts with the antigen and triggers a cascade of adaptive immune responses to overcome a disease outbreak. The MHC is very important region from immunological point of view, but it is poorly characterized among Indian leopards. During this investigation, we examined genetic diversity for MHC class I (MHC-I) and MHC class II-DRB (MHC-II) among wild and captive Indian leopards...
August 22, 2017: Genetica
https://www.readbyqxmd.com/read/28831229/baseline-hematology-and-serum-biochemistry-results-for-indian-leopards-panthera-pardus-fusca
#10
Arun Attur Shanmugam, Sanath Krishna Muliya, Ajay Deshmukh, Sujay Suresh, Anukul Nath, Pa Kalaignan, Manjunath Venkataravanappa, Lyju Jose
AIM: The aim of the study was to establish the baseline hematology and serum biochemistry values for Indian leopards (Panthera pardus fusca), and to assess the possible variations in these parameters based on age and gender. MATERIALS AND METHODS: Hemato-biochemical test reports from a total of 83 healthy leopards, carried out as part of routine health evaluation in Bannerghatta Biological Park and Manikdoh Leopard Rescue Center, were used to establish baseline hematology and serum biochemistry parameters for the subspecies...
July 2017: Veterinary World
https://www.readbyqxmd.com/read/28811626/outbreak-and-genotyping-of-canine-distemper-virus-in-captive-siberian-tigers-and-red-pandas
#11
He Zhang, Fen Shan, Xia Zhou, Bing Li, Jun-Qiong Zhai, Shu-Zhan Zou, Meng-Fan Wu, Wu Chen, Shao-Lun Zhai, Man-Lin Luo
In this study, four canine distemper virus (CDV) strains were isolated from captive Siberian tigers (Panthera tigris altaica) and red pandas (Ailurus fulgens) during two separate CDV outbreaks in a zoo in Guangdong province, China. Sequence alignment and phylogenetic analyses based on the full-length hemagglutinin (H) and fusion (F) genes showed that they were closely identical to genotype Asia-1. Prior to confirmation of CDV in Siberian tigers, to control spread of the disease, a live attenuated combination CDV vaccine was used among almost all carnivore animals except for red pandas in which another recombinant combination CDV vaccine was used...
August 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28807300/echinococcus-felidis-in-hippopotamus-south-africa
#12
Ali Halajian, Wilmien J Luus-Powell, Francois Roux, Minoru Nakao, Mizuki Sasaki, Antti Lavikainen
Hydatid cysts of Echinococcus felidis are described from the hippopotamus (Hippopotamus amphibius) from Mpumalanga Province, South Africa. Among six hippopotami investigated, hepatic hydatids were found in three. The identification was based on mitochondrial and nuclear DNA sequences. In addition, the rostellar hook morphology was analysed. This is the first morphological description of the metacestode of E. felidis, and the first molecularly confirmed report of the intermediate host of E. felidis in South Africa...
August 30, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28791136/range-contractions-of-the-world-s-large-carnivores
#13
Christopher Wolf, William J Ripple
The majority of the world's terrestrial large carnivores have undergone substantial range contractions and many of these species are currently threatened with extinction. However, there has been little effort to fully quantify the extent of large carnivore range contractions, which hinders our ability to understand the roles and relative drivers of such trends. Here we present and analyse a newly constructed and comprehensive set of large carnivore range contraction maps. We reveal the extent to which ranges have contracted since historical times and identify regions and biomes where range contractions have been particularly large...
July 2017: Royal Society Open Science
https://www.readbyqxmd.com/read/28776029/genome-wide-signatures-of-complex-introgression-and-adaptive-evolution-in-the-big-cats
#14
Henrique V Figueiró, Gang Li, Fernanda J Trindade, Juliana Assis, Fabiano Pais, Gabriel Fernandes, Sarah H D Santos, Graham M Hughes, Aleksey Komissarov, Agostinho Antunes, Cristine S Trinca, Maíra R Rodrigues, Tyler Linderoth, Ke Bi, Leandro Silveira, Fernando C C Azevedo, Daniel Kantek, Emiliano Ramalho, Ricardo A Brassaloti, Priscilla M S Villela, Adauto L V Nunes, Rodrigo H F Teixeira, Ronaldo G Morato, Damian Loska, Patricia Saragüeta, Toni Gabaldón, Emma C Teeling, Stephen J O'Brien, Rasmus Nielsen, Luiz L Coutinho, Guilherme Oliveira, William J Murphy, Eduardo Eizirik
The great cats of the genus Panthera comprise a recent radiation whose evolutionary history is poorly understood. Their rapid diversification poses challenges to resolving their phylogeny while offering opportunities to investigate the historical dynamics of adaptive divergence. We report the sequence, de novo assembly, and annotation of the jaguar (Panthera onca) genome, a novel genome sequence for the leopard (Panthera pardus), and comparative analyses encompassing all living Panthera species. Demographic reconstructions indicated that all of these species have experienced variable episodes of population decline during the Pleistocene, ultimately leading to small effective sizes in present-day genomes...
July 2017: Science Advances
https://www.readbyqxmd.com/read/28751224/molecular-cloning-and-functional-characterization-of-eleven-subtypes-of-interferon-%C3%AE-in-amur-tigers-panthera-tigris-altaica
#15
Hongjing Zhao, Jian Ma, Yu Wang, Juanjuan Liu, Yizhi Shao, Jinglun Li, Guangshun Jiang, Mingwei Xing
Interferon has a broad-spectrum of antiviral effects and represents an ideal choice for the development of antiviral drugs. Nonetheless, information about alpha interferon (IFN-α) is vacant in Amur tiger (Panthera tigris altaica), an endangered species and indigenous to northeast Asia. Herein, 11 PtIFN-αs genes, which encoded proteins of 164-165 amino acids, were amplified. Afterwards, expression and purification were conducted in Escherichia coli. In physicochemical analysis, PtIFN-αs were shown to be highly sensitive to trypsin and remained stable despite changes in pH and temperature...
July 24, 2017: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/28749304/investigation-of-enrofloxacin-associated-retinal-toxicity-in-nondomestic-felids
#16
Kim M Newkirk, L Kathryn Beard, Xiaocun Sun, Edward C Ramsay
Enrofloxacin is known to cause retinal toxicity in domestic cats. The hallmark lesion of enrofloxacin-associated retinal toxicity in domestic cats is thinning of the outer nuclear layer of the retina. Enrofloxacin is commonly used to treat bacterial infections in nondomestic felids because of its action against a wide spectrum of bacteria and the ability for it to be given orally. No previous studies have investigated the potential retinal toxicity of enrofloxacin in nondomestic felids. This retrospective study evaluated 81 eyes from 14 lions ( Panthera leo ) and 33 tigers ( Panthera tigris ) that had been enucleated or collected postmortem...
June 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/28749296/bridging-gaps-between-zoo-and-wildlife-medicine-establishing-reference-intervals-for-free-ranging-african-lions-panthera-leo
#17
Heather M Broughton, Danny Govender, Purvance Shikwambana, Patrick Chappell, Anna Jolles
The International Species Information System has set forth an extensive database of reference intervals for zoologic species, allowing veterinarians and game park officials to distinguish normal health parameters from underlying disease processes in captive wildlife. However, several recent studies comparing reference values from captive and free-ranging animals have found significant variation between populations, necessitating the development of separate reference intervals in free-ranging wildlife to aid in the interpretation of health data...
June 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/28749292/molecular-detection-of-infectious-pathogens-of-the-upper-respiratory-tract-in-captive-nondomestic-felids
#18
Valéria M Lara, Julia C Benassi, Shayne P Bisetto, Trícia M de Oliveira, Helena L Ferreira, João P Araújo Júnior, Adriano B Carregaro
Upper respiratory tract disease is a complex infectious disease process with multiple pathogens involved. Identification of infectious agents in wild animals is of great importance for wildlife conservation. The aim of this study was to evaluate the molecular detection of feline herpesvirus type 1, feline calicivirus (FCV), Bordetella bronchiseptica , Chlamydophila felis , and Mycoplasma felis using ocular and nasal swabs in three species of captive nondomestic felids. Mycoplasma felis was detected in two ocular samples of Puma concolor and in one nasal sample of one Panthera onca ...
June 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/28698649/characterizing-the-scent-and-chemical-composition-of-panthera-leo-marking-fluid-using-solid-phase-microextraction-and-multidimensional-gas-chromatography-mass-spectrometry-olfactometry
#19
Simone B Soso, Jacek A Koziel
Lions (Panthera leo) use chemical signaling to indicate health, reproductive status, and territorial ownership. To date, no study has reported on both scent and composition of marking fluid (MF) from P. leo. The objectives of this study were to: 1) develop a novel method for simultaneous chemical and scent identification of lion MF in its totality (urine + MF), 2) identify characteristic odorants responsible for the overall scent of MF as perceived by human panelists, and 3) compare the existing library of known odorous compounds characterized as eliciting behaviors in animals in order to understand potential functionality in lion behavior...
July 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28690147/novel-anaplasma-and-ehrlichia-organisms-infecting-the-wildlife-of-two-regions-of-the-brazilian-amazon
#20
Herbert S Soares, Arlei Marcili, Amália R M Barbieri, Antonio H H Minervino, Antonio F Malheiros, Solange M Gennari, Marcelo B Labruna
During 2009-2012, wild animals were sampled in the Amazon biome of Brazil. Animal tissues and blood were tested by polymerase chain reaction (PCR) assays targeting DNA of the bacterial family Anaplasmataceae (genera Anaplasma, Ehrlichia, Wolbachia) and the genus Borrelia. Overall, 181 wild animals comprising 36 different species (2 reptiles, 5 birds, and 29 mammals) were sampled. All birds and reptiles were negative by all PCR assays, as well as all mammals for the Borrelia PCR assay. Anaplasmataceae agents were searched by PCR assays targeting two different genes, the ribosomal 16S rRNA gene and the protein-coding dsb gene...
July 6, 2017: Acta Tropica
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