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https://www.readbyqxmd.com/read/28807274/isolation-of-viable-toxoplasma-gondii-molecular-characterization-and-seroprevalence-in-elk-cervus-canadensis-in-pennsylvania-usa
#1
J P Dubey, J Brown, S K Verma, C K Cerqueira-Cézar, J Banfield, O C H Kwok, Y Ying, F H A Murata, A K Pradhan, C Su
Toxoplasmosis is a worldwide zoonosis. The ingestion of uncooked/undercooked meat and consumption of water contaminated with Toxoplasma gondii oocysts excreted by felids are the main modes of transmission of this parasite. T. gondii has been reported in multiple cervid species; however, little is known of the parasite in North American elk (Cervus canadensis). In the present study, antibodies to T. gondii were detected in serum of wild elk from Pennsylvania collected during 2013-2016 by the modified agglutination test (MAT, cut-off 1:25); 221 of 317 (69...
August 30, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28791002/antibody-detection-isolation-genotyping-and-virulence-of-toxoplasma-gondii-in-captive-felids-from-china
#2
Yu-Rong Yang, Yong-Jie Feng, Yao-Yao Lu, Hui Dong, Tong-Yi Li, Yi-Bao Jiang, Xing-Quan Zhu, Long-Xian Zhang
The felids are the only definitive hosts of Toxoplasma gondii, which could excrete oocysts into the environment and provide an infection source for toxoplasmosis in various warm-blooded animal species, particularly the captive felids that live close to human communities. The infection rate of the captive felids is a perfect standard in detecting the presence of Toxoplasma gondii oocysts in the environment. In this study, sera or tissue samples from zoo (1 young tiger, 2 adult tigers, 6 young lions), farm (10 masked palm civets), and pet hospital (28 cats) from Henan Province (China) were collected...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28766738/major-shifts-in-amazon-wildlife-populations-from-recent-climatic-intensification
#3
Richard Bodmer, Pedro Mayor, Miguel Antunez, Kimberlyn Chota, Tula Fang, Pablo Puertas, Marlini Pittet, Maire Kirkland, Mike Walkey, Claudia Rios, Pedro Perez-Peña, Peter Henderson, William Bodmer, Andy Bicerra, Joseph Zegarra, Emma Docherty
In the western Amazon basin, recent intensification of river level cycles has increased flooding during the wet seasons and decreased precipitation during the dry season. Greater than normal floods occurred in 2009 and in all years from 2011-2015 during high water seasons, and a drought occurred during the 2010 low water season. During these years, we surveyed populations of terrestrial, arboreal and aquatic wildlife in a seasonally flooded Amazonian forest to study the consequences of intensification of climatic fluctuations to wildlife populations and in turn resource use by traditional people...
August 2, 2017: Conservation Biology: the Journal of the Society for Conservation Biology
https://www.readbyqxmd.com/read/28765810/the-diversity-and-impact-of-hookworm-infections-in-wildlife
#4
REVIEW
Mauricio Seguel, Nicole Gottdenker
Hookworms are blood-feeding nematodes that parasitize the alimentary system of mammals. Despite their high pathogenic potential, little is known about their diversity and impact in wildlife populations. We conducted a systematic review of the literature on hookworm infections of wildlife and analyzed 218 studies qualitative and quantitatively. At least 68 hookworm species have been described in 9 orders, 24 families, and 111 species of wild mammals. Black bears, red foxes, and bobcats harbored the highest diversity of hookworm species and Ancylostoma pluridentatum, A...
December 2017: International Journal for Parasitology. Parasites and Wildlife
https://www.readbyqxmd.com/read/28749304/investigation-of-enrofloxacin-associated-retinal-toxicity-in-nondomestic-felids
#5
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/28749292/molecular-detection-of-infectious-pathogens-of-the-upper-respiratory-tract-in-captive-nondomestic-felids
#6
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/28748783/detection-of-echinococcus-multilocularis-and-other-foodborne-parasites-in-fox-cat-and-dog-faeces-collected-in-kitchen-gardens-in-a-highly-endemic-area-for-alveolar-echinococcosis
#7
Marie-Lazarine Poulle, Matthieu Bastien, Yolan Richard, Émilie Josse-Dupuis, Dominique Aubert, Isabelle Villena, Jenny Knapp
Echinococcus multilocularis, Toxoplasma gondii and Toxocara spp. are foodborne parasites whose eggs or oocysts are spread in the environment via canid or felid faeces. They can cause infections in humans following the raw consumption of contaminated fruit or vegetables. In this study, their occurrence was investigated by quantitative polymerase chain reaction (qPCR) in 254 carnivore faeces deposited in 94 kitchen gardens of northeastern France that were sampled between two and six times from October 2011 to April 2013...
2017: Parasite: Journal de la Société Française de Parasitologie
https://www.readbyqxmd.com/read/28732460/novel-efficient-genome-wide-snp-panels-for-the-conservation-of-the-highly-endangered-iberian-lynx
#8
Daniel Kleinman-Ruiz, Begoña Martínez-Cruz, Laura Soriano, Maria Lucena-Perez, Fernando Cruz, Beatriz Villanueva, Jesús Fernández, José A Godoy
BACKGROUND: The Iberian lynx (Lynx pardinus) has been acknowledged as the most endangered felid species in the world. An intense contraction and fragmentation during the twentieth century left less than 100 individuals split in two isolated and genetically eroded populations by 2002. Genetic monitoring and management so far have been based on 36 STRs, but their limited variability and the more complex situation of current populations demand more efficient molecular markers. The recent characterization of the Iberian lynx genome identified more than 1...
July 21, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28732033/spatial-and-simultaneous-representative-seroprevalence-of-anti-toxoplasma-gondii-antibodies-in-owners-and-their-domiciled-dogs-in-a-major-city-of-southern-brazil
#9
Aline do Nascimento Benitez, Felippe Danyel Cardoso Martins, Marcelle Mareze, Nelson Jessé Rodrigues Santos, Fernanda Pinto Ferreira, Camila Marinelli Martins, João Luis Garcia, Regina Mitsuka-Breganó, Roberta Lemos Freire, Alexander Welker Biondo, Italmar Teodorico Navarro
Toxoplasmosis, caused by Toxoplasma gondii, has traditionally been considered an important water and foodborne protozoonosis with important public health considerations. Although felids play a well-established role as definitive hosts, canine epidemiological involvement in the parasite's life cycle remains questionable and controversial. The increasing closeness of the human-dog bond, particularly seen in urban settings, has been recognized as a historically unprecedented worldwide movement. Sharing daily lives in the same households, dogs may be exposed to similar associated risks of T...
2017: PloS One
https://www.readbyqxmd.com/read/28708492/development-and-proliferation-of-feline-endometrial-glands-from-fetal-life-to-ovarian-cyclicity
#10
Mariana Lopez Merlo, Marcela Faya, Marcelo Priotto, Claudio Barbeito, Cristina Gobello
In this study it was determined the progression of uterine gland development from late gestation to puberty in domestic felids. Cell proliferation patterns for luminal (LE), glandular epithelium (GE) as well as stroma (S) were also described. Twenty-four uteri from female kittens: 45 and 65 days of gestation and 1 to 5, 8, 12, 16, 20 and 24 weeks postnatally were obtained. Uterine cross-sections were submitted for routine histological and immunohistochemical quantification of proliferating cell nuclear antigen (PCNA) techniques...
June 1, 2017: Theriogenology
https://www.readbyqxmd.com/read/28698045/active-and-passive-responses-to-catnip-nepeta-cataria-are-affected-by-age-sex-and-early-gonadectomy-in-male-and-female-cats
#11
Luz Teresa Espín-Iturbe, Bernardo A López Yañez, Apolo Carrasco García, Rodolfo Canseco-Sedano, Maribel Vázquez-Hernández, Genaro A Coria-Avila
Catnip (Nepeta cataria) is a popular plant among cat owners because in about 60% of felids elicits active behaviors such as rolling over, grooming, motor activity and vocalizations. Herein, we assessed the display of active but also passive responses, such as time in sphinx-like position, and consequently hypothesized that 100% of cats respond to catnip. Accordingly, sixty domestic cats of different age (infant, juvenile, adults), sex (males, females) and gonadal status (early gonadectomized, gonadally intact) were placed in a cylindrical chamber (1...
July 8, 2017: Behavioural Processes
https://www.readbyqxmd.com/read/28689276/low-genetic-variation-in-the-mhc-class-ii-drb-gene-and-mhc-linked-microsatellites-in-endangered-island-populations-of-the-leopard-cat-prionailurus-bengalensis-in-japan
#12
Toshinori Saka, Yoshinori Nishita, Ryuichi Masuda
Isolated populations of the leopard cat (Prionailurus bengalensis) on Tsushima and Iriomote islands in Japan are classified as subspecies P. b. euptilurus and P. b. iriomotensis, respectively. Because both populations have decreased to roughly 100, an understanding of their genetic diversity is essential for conservation. We genotyped MHC class II DRB exon 2 and MHC-linked microsatellite loci to evaluate the diversity of MHC genes in the Tsushima and Iriomote cat populations. We detected ten and four DRB alleles in these populations, respectively...
July 9, 2017: Immunogenetics
https://www.readbyqxmd.com/read/28688459/new-cranium-of-the-large-cercopithecid-primate-theropithecus-oswaldi-leakeyi-hopwood-1934-from-the-paleoanthropological-site-of-makuyuni-tanzania
#13
Stephen R Frost, Charles Saanane, Britt M Starkovich, Hilde Schwartz, Friedemann Schrenk, Katerina Harvati
The Pleistocene hominin site of Makuyuni, near Lake Manyara, Tanzania, is known for fossils attributable to Homo and Acheulean artifacts (Ring et al., 2005; Kaiser et al., 2010; Frost et al., 2012). Here we describe the fossil primate material from the Manyara Beds, which includes the first nearly complete female cranium of Theropithecus oswaldi leakeyi and a proximal tibia from the same taxon. The cranium is dated to between 633 and 780 Ka and the tibia to the Pleistocene. The T. oswaldi lineage is one of the most important among Neogene mammals of Africa: it is both widespread and abundant...
August 2017: Journal of Human Evolution
https://www.readbyqxmd.com/read/28680689/rensching-cats-and-dogs-feeding-ecology-and-fecundity-trends-explain-variation-in-the-allometry-of-sexual-size-dimorphism
#14
P J Johnson, M J Noonan, A C Kitchener, L A Harrington, C Newman, D W Macdonald
The tendency for sexual size dimorphism (SSD) to increase with body mass in taxa where males are larger, and to decrease when females are larger, is known as Rensch's rule. In mammals, where the trend occurs, it is believed to be the result of a competitive advantage for larger males, while female mass is constrained by the energetics of reproduction. Here, we examine the allometry of SSD within the Felidae and Canidae, demonstrating distinctly different patterns: in felids, there is positive allometric scaling, while there is no trend in canids...
June 2017: Royal Society Open Science
https://www.readbyqxmd.com/read/28677421/molecular-detection-of-viral-agents-in-free-ranging-and-captive-neotropical-felids-in-brazil
#15
Mariana Malzoni Furtado, Sueli Akemi Taniwaki, Iracema Nunes de Barros, Paulo Eduardo Brandão, José Luiz Catão-Dias, Sandra Cavalcanti, Laury Cullen, Claudia Filoni, Anah Tereza de Almeida Jácomo, Rodrigo Silva Pinto Jorge, Nairléia Dos Santos Silva, Leandro Silveira, José Soares Ferreira Neto
We describe molecular testing for felid alphaherpesvirus 1 (FHV-1), carnivore protoparvovirus 1 (CPPV-1), feline calicivirus (FCV), alphacoronavirus 1 (feline coronavirus [FCoV]), feline leukemia virus (FeLV), feline immunodeficiency virus (FIV), and canine distemper virus (CDV) in whole blood samples of 109 free-ranging and 68 captive neotropical felids from Brazil. Samples from 2 jaguars ( Panthera onca) and 1 oncilla ( Leopardus tigrinus) were positive for FHV-1; 2 jaguars, 1 puma ( Puma concolor), and 1 jaguarundi ( Herpairulus yagouaroundi) tested positive for CPPV-1; and 1 puma was positive for FIV...
July 1, 2017: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/28637681/two-tales-of-cytauxzoon-felis-infections-in-domestic-cats
#16
REVIEW
Jin-Lei Wang, Ting-Ting Li, Guo-Hua Liu, Xing-Quan Zhu, Chaoqun Yao
Cytauxzoonosis is an emerging infectious disease that affects wild felids as well as the domestic cat; it is caused by the apicomplexan protozoan parasites belonging to the genus Cytauxzoon. Cytauxzoonfelis is the species of major concern, whose transmission occurs via the bite of an infected tick. Cytauxzoonosis of the domestic cat has historically been considered uniformly fatal, with a short course of illness, and most domestic cats die within 9 to 15 days postinfection. However, increasing evidence of domestic cats surviving C...
October 2017: Clinical Microbiology Reviews
https://www.readbyqxmd.com/read/28629655/protocols-for-sperm-cryopreservation-in-the-domestic-cat-a-review
#17
REVIEW
K Buranaamnuay
The main objectives of sperm cryopreservation in domestic cats are to preserve these gametes for future use, especially in valuable domestic cat breeds and to use knowledge-gained for developing sperm preservation techniques in wild felids that are threatened with extinction. To achieve acceptable quality of post-thaw sperm and results after insemination, sperm samples must be properly handled, cryopreserved and thawed by using appropriate protocols. In this paper, cryopreservation protocols of domestic cat sperm that have been reported previously are described...
June 13, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28624132/schizogony-and-gametogony-of-oocyst-deficient-t-263-strain-of-toxoplasma-gondii
#18
J P Dubey
Oocysts are important stage for the spread of Toxoplasma gondii because they are environmentally resistant. Among all hosts of T. gondii, only felids can excrete oocysts. Cats that have excreted T. gondii oocysts after primary infection develop immunity to re-excretion of oocysts, and this immunity appears to be long-lasting. It would be desirable to have a non-infectious vaccine for the prevention of T. gondii infection in cats and to understand mechanism of immunity to excretion of oocysts. An initial step will be to indentify stage/stages of the parasite for induction of immunity...
May 27, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28612434/effect-of-increasing-taurine-and-methionine-supplementation-on-urinary-taurine-excretion-in-a-model-insectivore-the-giant-anteater-myrmecophaga-tridactyla
#19
S A Nofs, E S Dierenfeld, R C Backus
The giant anteater (Mymercophaga tridactyla) is a highly specialized insectivore for which nutrient requirements are not clearly established, making diet formulation challenging for this species. Multiple clinical reports suggest anteaters have an obligate dietary taurine (TAU) requirement. Sulphur amino acid (SAA) metabolism in adult anteaters was evaluated using noninvasive methods to measure TAU synthesis potential from dietary methionine (MET) and a basal diet containing on a dry matter (DM) basis 1.7 mg TAU/kg DM and 6...
June 14, 2017: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/28599641/morphological-modularity-in-the-vertebral-column-of-felidae-mammalia-carnivora
#20
Marcela Randau, Anjali Goswami
BACKGROUND: Previous studies have demonstrated that the clear morphological differences among vertebrae across the presacral column are accompanied by heterogeneous functional signals in vertebral shape. Further, several lines of evidence suggest that the mammalian axial skeleton is a highly modular structure. These include its composition of serial units, a trade-off between high shape variance and strong conservation of vertebral count, and direct association of regions with anterior expression sites of Hox genes...
June 9, 2017: BMC Evolutionary Biology
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