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https://www.readbyqxmd.com/read/29138744/multiple-myeloma-in-an-amur-tiger-panthera-tigris-altaica
#1
Alison M Lee, Naomi Guppy, John Bainbridge, Hanne Jahns
The Amur tiger (Panthera tigris altaica) is an endangered tiger subspecies. An adult zoo-bred female was found collapsed, and died despite supportive treatment. Hematology and biochemistry showed pancytopenia and hyperglobulinemia, and serum protein electrophoresis revealed a monoclonal band in the β-globulin region. Necropsy demonstrated hemoabdomen, multifocal lytic bone marrow lesions, splenomegaly, and hemorrhagic hepatic nodules, with left medial lobe rupture. There were mutifocal hemorrhages in the subcutis, lung, epicardium, and intestinal mucosa...
2017: Open veterinary journal
https://www.readbyqxmd.com/read/29134982/electrocardiographic-and-blood-pressure-measurements-in-captive-african-lions-panthera-leo-immobilized-with-xylazine-ketamine-combination
#2
T O Omóbòwálé, P I Otuh, O A Adejumobi, J O Abiola, T Adebiyi, B N Ogunro, A O Adeogun
Electrocardiographic and blood pressure measurements are extremely valuable diagnostic tools in the evaluationof the cardiovascular system of living animals. In this study, 6-lead electrocardiograms were recorded from five male captiveAfrican lions (Panthera leo). Also, blood pressure measurements were recorded and compared from three different sites;fore limb, hind limb and the tail, were recorded. Immobilization was done with a combination of Ketamine Hydrochloride(10mg/kg) and Xylazine (3mg/kg). Measurements were recorded as mean ± standard deviation...
June 30, 2017: Nigerian Journal of Physiological Sciences: Official Publication of the Physiological Society of Nigeria
https://www.readbyqxmd.com/read/29114438/assessment-of-fine-scale-resource-selection-and-spatially-explicit-habitat-suitability-modelling-for-a-re-introduced-tiger-panthera-tigris-population-in-central-india
#3
Mriganka Shekhar Sarkar, Ramesh Krishnamurthy, Jeyaraj A Johnson, Subharanjan Sen, Goutam Kumar Saha
Background: Large carnivores influence ecosystem functions at various scales. Thus, their local extinction is not only a species-specific conservation concern, but also reflects on the overall habitat quality and ecosystem value. Species-habitat relationships at fine scale reflect the individuals' ability to procure resources and negotiate intraspecific competition. Such fine scale habitat choices are more pronounced in large carnivores such as tiger (Panthera tigris), which exhibits competitive exclusion in habitat and mate selection strategies...
2017: PeerJ
https://www.readbyqxmd.com/read/29081476/sterile-nodular-panniculitis-with-lung-and-lymph-node-involvement-in-a-siberian-tiger-panthera-tigris-altica
#4
Shou-Ping Hu, Zhuo Zhang, Jiao-Er Zhang, Xue-Hui Cai, Hiroyuki Nakayama, Xi-Jun He
A 2- to 4-year-old uncastrated male Siberian tiger (Panthera tigris altica) bred in a local wild animal park presented with generalized clinical signs including abdominal pain, fever, lethargy, and anorexia, along with subcutaneous nodules along the trunk. The patient subsequently died of chronic, progressive dyspnea despite 45 days of antibiotic treatment. At necropsy, mesenteric fat inflammation and multiple subcutaneous, peritoneal, and intraabdominal nodules were observed. The lungs demonstrated congestion and heavy coagulation, and necrotic foci were observed on the cut surface...
October 30, 2017: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/29065143/a-roaring-trade-the-legal-trade-in-panthera-leo-bones-from-africa-to-east-southeast-asia
#5
Vivienne L Williams, Andrew J Loveridge, David J Newton, David W Macdonald
The African lion is the only big cat listed on CITES Appendix II, and the only one for which international commercial trade is legal under CITES. The trade in lion body parts, and especially the contentious trade in bones from South Africa to Asia, has raised concerns spanning continents and cultures. Debates were amplified at the 2016 CITES Conference of the Parties (CoP17) when a proposal to up-list lions to Appendix I was not supported and a compromise to keep them on Appendix II, with a bone trade quota for South Africa, was reached instead...
2017: PloS One
https://www.readbyqxmd.com/read/29053427/canine-distemper-virus-in-a-wild-far-eastern-leopard-panthera-pardus-orientalis
#6
Nadezhda S Sulikhan, Martin Gilbert, Ekaterina Yu Blidchenko, Sergei V Naidenko, Galina V Ivanchuk, Tatiana Yu Gorpenchenko, Mikhail V Alshinetskiy, Elena I Shevtsova, John M Goodrich, John C M Lewis, Mikhail S Goncharuk, Olga V Uphyrkina, Vyatcheslav V Rozhnov, Sergey V Shedko, Denise McAloose, Dale G Miquelle
The critically endangered population of Far Eastern leopards (Panthera pardus orientalis) may number as few as 60 individuals and is at risk from stochastic processes such as infectious disease. During May 2015, a case of canine distemper virus (CDV) was diagnosed in a wild leopard exhibiting severe neurologic disease in the Russian territory of Primorskii Krai. Amplified sequences of the CDV hemagglutinin gene and phosphoprotein gene aligned within the Arctic-like clade of CDV, which includes viruses from elsewhere in Russia, China, Europe, and North America...
October 20, 2017: Journal of Wildlife Diseases
https://www.readbyqxmd.com/read/29049374/correction-age-estimation-of-african-lions-panthera-leo-by-ratio-of-tooth-areas
#7
Paula A White, Dennis Ikanda, Luigi Ferrante, Philippe Chardonnet, Pascal Mesochina, Roberto Cameriere
[This corrects the article DOI: 10.1371/journal.pone.0153648.].
2017: PloS One
https://www.readbyqxmd.com/read/29029632/fatal-haemorrhage-and-neoplastic-thrombosis-in-a-captive-african-lion-panthera-leo-with-metastatic-testicular-sex-cord-stromal-tumour
#8
Omar Antonio Gonzales-Viera, Angélica María Sánchez-Sarmiento, Natália Coelho Couto de Azevedo Fernandes, Juliana Mariotti Guerra, Rodrigo Albergaria Ressio, José Luiz Catão-Dias
BACKGROUND: The study of neoplasia in wildlife species contributes to the understanding of cancer biology, management practices, and comparative pathology. Higher frequencies of neoplasms among captive non-domestic felids have been reported most commonly in aging individuals. However, testicular tumours have rarely been reported. This report describes a metastatic testicular sex cord-stromal tumour leading to fatal haemorrhage and thrombosis in a captive African lion (Panthera leo). CASE PRESENTATION: During necropsy of a 16-year-old male African lion, the left testicle and spermatic cord were found to be intra-abdominal (cryptorchid), semi-hard and grossly enlarged with multiple pale-yellow masses...
October 13, 2017: Acta Veterinaria Scandinavica
https://www.readbyqxmd.com/read/28979344/giardia-duodenalis-in-captive-tigers-panthera-tigris-palawan-bearcats-arctictis-binturong-whitei-and-asian-palm-civet-paradoxurus-hermaphroditus-at-a-wildlife-facility-in-manila-philippines
#9
Nick Angelo P Velante, Rey B Oronan, Marco F Reyes, Billy P Divina
BACKGROUND: This study was conducted to determine the prevalence of Giardia duodenalis in captive animals in a wildlife facility. This is the first study conducted in these animals from the facility. METHODS: Eight captive tigers (Panthera tigris), two Palawan bearcats (Arctictis binturong whitei) and one Asian Palm Civet (Paradoxurus hermaphroditus) currently housed at a wildlife facility in Manila, Philippines were considered in 2012. These animals were apparently healthy with no signs of disease during the study...
July 2017: Iranian Journal of Parasitology
https://www.readbyqxmd.com/read/28971533/growth-rate-and-stable-carbon-and-nitrogen-isotope-trophic-discrimination-factors-of-lion-and-leopard-whiskers
#10
Ruwimbo Mutirwara, Frans G T Radloff, Daryl Codron
RATIONALE: Stable isotope analysis (SIA) of whiskers has been used to identify temporal feeding habits, intra-population diet variation, as well as individual dietary specialisation of marine and terrestrial carnivores. However, the potential of the method to disclose such dietary information for large wild felids is hampered by lack of information on species-specific whisker growth rates, whisker growth patterns and whisker-diet trophic discrimination factors (TDFs). METHODS: Whisker growth rates and growth patterns were measured for four lions Panthera leo and one leopard Panthera pardus held at the National Zoological Gardens, Pretoria, South Africa...
October 3, 2017: Rapid Communications in Mass Spectrometry: RCM
https://www.readbyqxmd.com/read/28953899/did-saber-tooth-kittens-grow-up-musclebound-a-study-of-postnatal-limb-bone-allometry-in-felids-from-the-pleistocene-of-rancho-la-brea
#11
Katherine Long, Donald Prothero, Meena Madan, Valerie J P Syverson
Previous studies have demonstrated that the Pleistocene saber-toothed cat Smilodon fatalis had many forelimb adaptations for increased strength, presumably to grapple with and subdue prey. The Rancho La Brea tar pits yield large samples of juvenile limb bones forming a growth series that allow us to examine how Smilodon kittens grew up. Almost all available juvenile limb bones were measured, and reduced major axis fits were calculated to determine the allometric growth trends. Contrary to expectations based on their robust limbs, Smilodon kittens show the typical pattern of growth found in other large felids (such as the Ice Age lion, Panthera atrox, as well as living tigers, cougars, servals, and wildcats) where the limb grows longer and more slender faster than they grow thick...
2017: PloS One
https://www.readbyqxmd.com/read/28920823/diagnosis-and-treatment-of-a-unilateral-renal-cystadenoma-in-an-african-lion-panthera-leo
#12
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
#13
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
#14
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-reveals-subtype-specific-transmission-dynamics-in-african-lions
#15
Nicholas M Fountain-Jones, Craig Packer, Jennifer L Troyer, Kimberly VanderWaal, Stacie Robinson, Maude Jacquot, Meggan E Craft
Heterogeneity within pathogen species can have important consequences for how pathogens transmit across landscapes; however, discerning different transmission routes is challenging. 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. 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...
October 2017: Journal of Animal Ecology
https://www.readbyqxmd.com/read/28854258/temporal-variation-in-black-caiman-nest-predation-in-varzea-of-central-brazilian-amazonia
#16
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
#17
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
#18
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
#19
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
#20
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
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