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https://www.readbyqxmd.com/read/28414723/prevalence-and-determinants-of-stereotypic-behaviours-and-physiological-stress-among-tigers-and-leopards-in-indian-zoos
#1
Janice Vaz, Edward J Narayan, R Dileep Kumar, K Thenmozhi, Krishnamoorthy Thiyagesan, Nagarajan Baskaran
India's charismatic wildlife species are facing immense pressure from anthropogenic-induced environmental perturbations. Zoos play a major role in the conservation of threatened species, but their adaptation in captivity is posing a major challenge globally. Stress from inadequate adaptation could lead to suppression of cognitive functioning and increased display of stereotypic behaviour. It is thus necessary to measure biological traits like behaviour, stress physiology, and contextual factors driving the animals maintained at zoos...
2017: PloS One
https://www.readbyqxmd.com/read/28405631/electric-cell-substrate-impedance-sensing-to-monitor-viral-growth-and-study-cellular-responses-to-infection-with-alphaherpesviruses-in-real-time
#2
Matthew R Pennington, Gerlinde R Van de Walle
Electric cell-substrate impedance sensing (ECIS) measures changes in an electrical circuit formed in a culture dish. As cells grow over a gold electrode, they block the flow of electricity and this is read as an increase in electrical impedance in the circuit. ECIS has previously been used in a variety of applications to study cell growth, migration, and behavior in response to stimuli in real time and without the need for cellular labels. Here, we demonstrate that ECIS is also a valuable tool with which to study infection by alphaherpesviruses...
March 2017: MSphere
https://www.readbyqxmd.com/read/28402059/molecular-markers-of-putative-spermatogonial-stem-cells-in-the-domestic-cat
#3
S J Bedford-Guaus, S Kim, L Mulero, J M Vaquero, C Morera, R Adan-Milanès, A Veiga, Á Raya
Spermatogonial stem cells (SSCs) are an important tool for fertility preservation and species conservation. The ability to expand SSCs by in vitro culture is a crucial premise for their use in assisted reproduction. Because SSCs represent a small proportion of the germ cells in the adult testis, culture success is aided by pre-enrichment through sorting techniques based on cell surface-specific markers. Given the importance of the domestic cat as a model for conservation of endangered wild felids, herein we sought to examine culture conditions as well as molecular markers for cat SSCs...
April 2017: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/28356105/first-clinical-case-report-of-cytauxzoon-sp-infection-in-a-domestic-cat-in-france
#4
Jean-Pierre Legroux, Lénaïg Halos, Magalie René-Martellet, Marielle Servonnet, Jean-Luc Pingret, Gilles Bourdoiseau, Gad Baneth, Luc Chabanne
BACKGROUND: Feline cytauxzoonosis is an emerging infection caused by tick-transmitted apicomplexan parasites of the genus Cytauxzoon. The association of clinical disease with Cytauxzoon infection appears to be limited to C. felis infections in the Americas. Sporadic infections of wild and domestic felids with Cytauxzoon sp. were recently described in European countries but clinical reports of the infection are rare and incomplete. This case report brings new interesting information on cytauxzoonosis expression in Europe...
March 29, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28355128/concurrent-examination-of-bobcats-and-ticks-reveals-high-prevalence-of-cytauxzoon-felis-in-southern-illinois
#5
Elliott A Zieman, F Agustin Jimenez, Clayton K Nielsen
Cytauxzoon felis is an intraerythrocytic apicomplexan of felids enzootic in the southeastern United States. In domestic cats (Felis catus), this parasite can result in the highly fatal disease cytauxzoonosis or bobcat fever. Bobcats (Lynx rufus) are the wild animal reservoir host. To date, the characterization of prevalence of C. felis in bobcats is mostly based on broad-scale surveys from hunter-harvested specimens collected across large geographic areas, usually consisting of multiple states. Detailed studies on the development, transmission, distribution, effects and prevalence of C...
March 29, 2017: Journal of Parasitology
https://www.readbyqxmd.com/read/28344403/toxoplasma-gondii-infection-in-meat-animals-from-africa-systematic-review-and-meta-analysis-of-sero-epidemiological-studies
#6
Aretas Babatoundé Nounnagnon Tonouhewa, Yao Akpo, Philippe Sessou, Camus Adoligbe, Eric Yessinou, Yaovi Gildas Hounmanou, Marc Napoléon Assogba, Issaka Youssao, Souaïbou Farougou
AIM: Toxoplasma gondii is an ubiquitous apicomplexan parasite which causes toxoplasmosis in humans and animals. Felids especially cats are definitive hosts and almost all warm-blooded mammals, including livestock and human can serve as intermediate hosts. Food animals can be reservoirs for T. gondii and act as one of the sources for parasite transmission to humans. The objective of this study is to collect serological data on the prevalence of anti-T. gondii antibody, and risk factors for certain food animals from Africa to provide a quantitative estimate of T...
February 2017: Veterinary World
https://www.readbyqxmd.com/read/28330894/targeted-enrichment-for-pathogen-detection-and-characterization-in-three-felid-species
#7
Justin S Lee, Ryan S Mackie, Thomas Harrison, Basir Shariat, Trey Kind, Timo Kehl, Martin Löchelt, Christina Boucher, Sue VandeWoude
Traditional diagnostic assays often lack sensitivity and can be difficult to multiplex across many pathogens. Next-generation sequencing (NGS) can overcome some of these problems but has limited application detecting low-copy-number pathogens in complex samples. Targeted genome capture (TGC) utilizes oligonucleotide probes to enrich specific nucleic acids in heterogeneous extracts and can therefore increase the proportion of NGS reads for low-abundance targets. While prior studies have demonstrated the utility of this technology for detection of novel pathogens in human clinical samples, the capacity and practicality of TGC-NGS in a veterinary diagnostic setting has not yet been evaluated...
March 22, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/28322220/early-onset-progressive-retinal-atrophy-associated-with-an-iqcb1-variant-in-african-black-footed-cats-felis-nigripes
#8
Annie Oh, Jacqueline W Pearce, Barbara Gandolfi, Erica K Creighton, William K Suedmeyer, Michael Selig, Ann P Bosiack, Leilani J Castaner, Rebecca E H Whiting, Ellen B Belknap, Leslie A Lyons
African black-footed cats (Felis nigripes) are endangered wild felids. One male and full-sibling female African black-footed cat developed vision deficits and mydriasis as early as 3 months of age. The diagnosis of early-onset progressive retinal atrophy (PRA) was supported by reduced direct and consensual pupillary light reflexes, phenotypic presence of retinal degeneration, and a non-recordable electroretinogram with negligible amplitudes in both eyes. Whole genome sequencing, conducted on two unaffected parents and one affected offspring was compared to a variant database from 51 domestic cats and a Pallas cat, revealed 50 candidate variants that segregated concordantly with the PRA phenotype...
March 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28273159/the-challenge-of-monitoring-elusive-large-carnivores-an-accurate-and-cost-effective-tool-to-identify-and-sex-pumas-puma-concolor-from-footprints
#9
Sky Alibhai, Zoe Jewell, Jonah Evans
Acquiring reliable data on large felid populations is crucial for effective conservation and management. However, large felids, typically solitary, elusive and nocturnal, are difficult to survey. Tagging and following individuals with VHF or GPS technology is the standard approach, but costs are high and these methodologies can compromise animal welfare. Such limitations can restrict the use of these techniques at population or landscape levels. In this paper we describe a robust technique to identify and sex individual pumas from footprints...
2017: PloS One
https://www.readbyqxmd.com/read/28241777/predominance-of-atypical-genotypes-of-toxoplasma-gondii-in-free-roaming-chickens-in-st-kitts-west-indies
#10
Clare M Hamilton, Patrick J Kelly, Kenneth Boey, Tatiana M Corey, Hieuhanh Huynh, Deidra Metzler, Isabelle Villena, Chunlei Su, Elisabeth A Innes, Frank Katzer
BACKGROUND: Toxoplasma gondii is a worldwide protozoan parasite of felids which can infect almost all warm-blooded animals, including humans. Free-roaming chickens are good indicators of environmental contamination with T. gondii oocysts because they feed from the ground. Previous research has demonstrated a high seroprevalence of T. gondii in domestic animals on St. Kitts but little is known about the genotypes circulating in the environment. METHODS: Hearts and brains from 81 free-roaming chickens in St...
February 27, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28217865/caching-reduces-kleptoparasitism-in-a-solitary-large-felid
#11
Guy A Balme, Jennifer R B Miller, Ross T Pitman, Luke T B Hunter
Food caching is a common strategy used by a diversity of animals, including carnivores, to store and/or secure food. Despite its prevalence, the drivers of caching behaviour, and its impacts on individuals, remain poorly understood, particularly for short-term food cachers. Leopards Panthera pardus exhibit a unique form of short-term food caching, regularly hoisting, storing and consuming prey in trees. We explored the factors motivating such behaviour among leopards in the Sabi Sand Game Reserve, South Africa, associated with four not mutually exclusive hypotheses: food-perishability, consumption-time, resource-pulse and kleptoparasitism-avoidance...
February 19, 2017: Journal of Animal Ecology
https://www.readbyqxmd.com/read/28215867/seroepidemiology-and-risk-assessment-of-toxoplasma-gondii-infection-in-captive-wild-birds-and-mammals-in-two-zoos-in-the-north-of-portugal
#12
Ana Tidy, Sara Fangueiro, Jitender P Dubey, Luís Cardoso, Ana Patrícia Lopes
Toxoplasmosis, caused by the protozoan Toxoplasma gondii, is one of the most widespread zoonoses in the world. It can affect most warm-blooded animals but only felids are its definitive hosts. We determined seroprevalence and associated risk factors in birds and mammals kept in two zoological parks in northern Portugal. Sera from 77 birds and 42 mammals were assayed for the presence of T. gondii antibodies by the modified agglutination test (MAT, cut-off titre 20); 34.5% (41/119) were seropositive. All seropositive animals were apparently healthy except one seropostive mandarin (Aix galericulata) which had chorioretinitis...
February 15, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28215681/sperm-evaluation-of-jungle-cat-felis-chaus-obtained-by-urethral-catheterization-ct-after-medetomidine-administration
#13
M S Kheirkhah, M Mollapour Sisakht, M Mohammadsadegh, H R Moslemi
This study aimed to evaluate semen from Jungle Cat (Felis chaus) by urethral catheterization (CT) after medetomidine administration that offers feasible and different approaches to obtaining good quality sperm, especially in wild felids. Accordingly, this method was tested in five Jungle Cats. After general anesthesia with the α2-agonist medetomidine (which also stimulates semen release into the urethra) and ketamine, an abdomen ultrasound was performed to locate dilation of the first segment of the urethra (prostatic urethra)...
March 15, 2017: Theriogenology
https://www.readbyqxmd.com/read/28215215/the-mitochondrial-genome-of-ancylostoma-tubaeforme-from-cats-in-china
#14
X L Shi, Y Q Fu, A Y Abdullahi, M W Wang, F Yang, X G Yu, W D Pan, X X Yan, J X Hang, P Zhang, G Q Li
Ancylostoma tubaeforme may infect canids, felids and humans, and pose a potential risk to public health. Polymerase chain reaction (PCR) techniques were used to amplify the complete mitochondrial (mt) genome sequence of A. tubaeforme from cats and to analyse its sequence characteristics after molecular identification based on the internal transcribed spacer ITS1+ sequence. The results show that the complete mt genome sequence (GenBank accession number KY070315) of A. tubaeforme from cats was 13,730 bp in length, including 12 protein-coding genes, 22 transfer RNA (tRNA) genes, two ribosomal RNA (rRNA) genes, two non-coding regions and an AT-rich region...
February 20, 2017: Journal of Helminthology
https://www.readbyqxmd.com/read/28211157/unravelling-intravertebral-integration-modularity-and-disparity-in-felidae-mammalia
#15
Marcela Randau, Anjali Goswami
Morphological integration and modularity, which describe the relationships among morphological attributes and reflect genetic, developmental, and functional interactions, have been hypothesized to be major influences on trait responses to selection and thus morphological evolution. The mammalian presacral vertebral column shows little variation in vertebral count and therefore specialization for function occurs primarily through modification of vertebral shape. However, vertebral shape has been suggested to be under strong control from developmental canalization, although this has never been explicitly tested...
February 17, 2017: Evolution & Development
https://www.readbyqxmd.com/read/28197762/mitochondrial-haplotypes-of-aelurostrongylus-abstrusus-and-troglostrongylus-brevior-nematoda-metastrongyloidea-from-domestic-and-wild-felids
#16
Donato Traversa, Fabrizia Veronesi, Anastasia Diakou, Raffaella Iorio, Giulia Simonato, Federica Marcer, Angela Di Cesare
The lungworm Aelurostrongylus abstrusus is the most important respiratory parasite of domestic cats. Pulmonary aelurostrongylosis has been reported in wild felids, though unequivocally evidence of wildlife infection by A. abstrusus is scant. Recently, Troglostrongylus brevior, a lungworm usually infecting wild felids, has been described in domestic cats from Mediterranean areas. The present work evaluates the sequence variation of an informative region within the gene encoding the mitochondrial cytochrome c oxidase subunit 1 of A...
April 2017: Parasitology Research
https://www.readbyqxmd.com/read/28195150/molecular-dietary-analysis-of-two-sympatric-felids-in-the-mountains-of-southwest-china-biodiversity-hotspot-and-conservation-implications
#17
Mengyin Xiong, Dajun Wang, Hongliang Bu, Xinning Shao, Dan Zhang, Sheng Li, Rongjiang Wang, Meng Yao
Dietary information is lacking in most of small to mid-sized carnivores due to their elusive predatory behaviour and versatile feeding habits. The leopard cat (LPC; Prionailurus bengalensis) and the Asiatic golden cat (AGC; Catopuma temminckii) are two important yet increasingly endangered carnivore species in the temperate mountain forest ecosystem in Southwest China, a global biodiversity hotspot and a significant reservoir of China's endemic species. We investigated the vertebrate prey of the two sympatric felids using faecal DNA and a next-generation sequencing (NGS)/metabarcoding approach...
February 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28130677/sarcocystis-menglaensis-n-sp-apicomplexa-sarcocystidae-from-williamson-s-mouse-deer-tuagulus-williamsoni-kloss-artiodactyla-tragulidae
#18
Jun-Jie Hu, Hong-Liang Li, Si Huang, Ming-Yong Chen, Gerald W Esch, Zhao-Qing Yang, Jing-Ling Song
Williamson's mouse deer, Tuagulus williamsoni (Kloss), is one of the smallest ungulates among tragulid species found in northern Thailand, and Yunnan Province, China. Here we describe Sarcocystis menglaensis n. sp., infecting two of 14 (14.3%) Williamson's mouse deer from south-western China. By light microscopy, sarcocysts of S. menglaensis are microscopic, up to 2,170 μm in length, and have a striated sarcocyst wall with 1.5-3.6 μm long palisade-like protrusions. Transmission electron microscopy observations revealed that sarcocyst wall is of "type 10f", and has numerous villar protrusions folded over the cyst wall...
February 2017: Systematic Parasitology
https://www.readbyqxmd.com/read/28127718/detection-of-toxoplasma-gondii-in-faeces-of-privately-owned-cats-using-two-pcr-assays-targeting-the-b1-gene-and-the-529-bp-repetitive-element
#19
Fabrizia Veronesi, Azzurra Santoro, Giovanni L Milardi, Manuela Diaferia, Giulia Morganti, David Ranucci, Simona Gabrielli
Toxoplasma gondii infection is a worldwide parasitic zoonosis with a high-health risk for humans. The key epidemiological role played by felids is related to oocyst shedding. The present study compared two amplification protocols for the molecular diagnosis of Toxoplasma infection in owned cats. A total of 78 owned cats referred to an Italian university-teaching hospital and exposed to various T. gondii-associated risk factors were sampled for blood and faeces. Faecal specimens were processed by flotation and tested using 2 copro-PCRs targeting the widely used B1 gene and the 529-bp repetitive element (RE)...
January 27, 2017: Parasitology Research
https://www.readbyqxmd.com/read/28111808/metabolism-of-prostaglandin-f2alpha-in-eurasian-lynx-lynx-lynx-and-asian-leopard-cat-prionailurus-bengalensis-euptilura
#20
M Dehnhard, S V Naidenko, K Jewgenow
Methods for monitoring endocrine status are useful tools for reproduction management. In particular, successful captive breeding of endangered feline species requires reliable methods for pregnancy diagnosis. In many species, uterine and placental prostaglandin-F2α (PGF2α) is involved in the regulation of reproductive processes. PGF2α is metabolized to 13,14-dihydro-15-keto-PGF2a (PGFM) during the first passage through the lungs. Immunoreactive PGFM is elevated in pregnant felids during the last trimester and is used for pregnancy diagnosis, although authentic PGFM is excreted in negligible amounts...
January 22, 2017: Reproduction in Domestic Animals, Zuchthygiene
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