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Dog behavior

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https://www.readbyqxmd.com/read/27925064/does-hair-coat-length-affect-flea-infestation-in-naturally-infested-dogs
#1
Guilherme Araujo Collares da Silva, Luciana Araujo Lins, Márcio Josué Costa Irala, Marcial Corrêa Cárcamo, Paulo Bretanha Ribeiro
The Siphonaptera are parasitic insects of endothermic animals and Ctenocephalides felis and Pulex irritans are important parasites of dogs. This study evaluated the effect of hair coat length and time of year on the population size of C. felis and P. irritans in naturally infested dogs. Fleas were collected from 14 dogs on a monthly basis for a year (February 2015 to January 2016) at a rural property in Bagé, Rio Grande do Sul, Brazil. The dogs were divided into two groups based on hair coat length: short coat (coat length < 5...
December 1, 2016: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/27918466/evaluating-a-website-to-teach-children-safety-with-dogs-a-randomized-controlled-trial
#2
David C Schwebel, Peng Li, Leslie A McClure, Joan Severson
Dog bites represent a significant threat to child health. Theory-driven interventions scalable for broad dissemination are sparse. A website was developed to teach children dog safety via increased knowledge, improved cognitive skills in relevant domains, and increased perception of vulnerability to bites. A randomized controlled trial was conducted with 69 children aged 4-5 randomly assigned to use the dog safety website or a control transportation safety website for ~3 weeks. Assessment of dog safety knowledge and behavior plus skill in three relevant cognitive constructs (impulse control, noticing details, and perspective-taking) was conducted both at baseline and following website use...
December 2, 2016: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/27917385/effects-of-sheltering-on-behavior-and-fecal-corticosterone-level-of-elderly-dogs
#3
Katsuji Uetake, Chu Han Yang, Aki Endo, Toshio Tanaka
In Japan, the human population is aging rapidly, and the abandonment of dogs by the elderly people who have died or been hospitalized becomes a problem. It is hypothesized that elderly dogs have difficulty adapting to the novel circumstances when brought to an animal shelter. Therefore, the objective of this study was to assess stress levels and demonstrate stress responses of elderly dogs just after admission to an animal shelter. As stress indicators, fecal corticosterone levels and changes in the ethogram of the dogs were investigated during the first week of admittance...
2016: Frontiers in Veterinary Science
https://www.readbyqxmd.com/read/27914935/laboratory-and-field-evaluation-of-brown-dog-tick-behavioral-responses-to-potential-semiochemicals
#4
Lucas P Carnohan, Phillip E Kaufman, Sandra A Allan, Salvador A Gezan, Emma N I Weeks
The brown dog tick, Rhipicephalus sanguineus sensu lato (Parasitiformis: Ixodidae), is an ectoparasite of dogs that can be found worldwide. This tick poses unique difficulties in management because it can complete its entire life cycle indoors and has demonstrated acaricide resistance. The ability to monitor for tick presence and abundance is necessary for developing effective control programs. As such, an evaluation of adult brown dog tick behavioral responses to 16 potential semiochemicals was undertaken using Y-tube and straight-tube olfactometers...
November 9, 2016: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/27912242/deciphering-the-origin-of-dogs-from-fossils-to-genomes
#5
Adam H Freedman, Robert K Wayne
Understanding the timing and geographic context of dog origins is a crucial component for understanding human history, as well as the evolutionary context in which the morphological and behavioral divergence of dogs from wolves occurred. A substantial challenge to understanding domestication is that dogs have experienced a complicated demographic history. An initial severe bottleneck was associated with domestication followed by postdivergence gene flow between dogs and wolves, as well as population expansions, contractions, and replacements...
November 28, 2016: Annual Review of Animal Biosciences
https://www.readbyqxmd.com/read/27906515/development-evolving-the-origins-and-meanings-of-instinct
#6
REVIEW
Mark S Blumberg
How do migratory birds, herding dogs, and navigating sea turtles do the amazing things that they do? For hundreds of years, scientists and philosophers have struggled over possible explanations. In time, one word came to dominate the discussion: instinct. It became the catch-all explanation for those adaptive and complex abilities that do not obviously result from learning or experience. Today, various animals are said to possess a survival instinct, migratory instinct, herding instinct, maternal instinct, or language instinct...
December 1, 2016: Wiley Interdisciplinary Reviews. Cognitive Science
https://www.readbyqxmd.com/read/27900754/ezrin-and-moesin-expression-in-canine-and-feline-osteosarcoma
#7
Juraj Hlavaty, Birgitt Wolfesberger, Marlene Hauck, Barbara Obermayer-Pietsch, Andrea Fuchs-Baumgartinger, Ingrid Miller, Ingrid Walter
Biological features of canine osteosarcomas (OS) differ markedly from those found in feline and resemble more human osteosarcomas, in particular for their high rate of metastasis and poor prognosis. Ezrin, radixin and moesin are members of the ERM protein family and link the actin cytoskeleton with the cell membrane. Ezrin and moesin have been shown to be of prognostic significance in tumor progression due to their role in the metastatic process. The objective of this study was to analyze ezrin and moesin protein expression in a series of dog (n = 16) and cat (n = 8) osteosarcoma samples using immunohistochemistry and western blot techniques...
November 30, 2016: Histology and Histopathology
https://www.readbyqxmd.com/read/27895610/the-origin-of-social-evaluation-social-eavesdropping-reputation-formation-image-scoring-or-what-you-will
#8
REVIEW
Judit Abdai, Ádám Miklósi
Social evaluation is a mental process that leverages the preference toward prosocial partners (positivity bias) against the avoidance of antisocial individuals (negativity bias) in a cooperative context. The phenomenon is well-known in humans, and recently comparative investigations looked at the possible evolutionary origins. So far social evaluation has been investigated mainly in non-human and human primates and dogs, however, there are few data on the presence of negativity/positivity bias in client-cleaner reef fish interactions as well...
2016: Frontiers in Psychology
https://www.readbyqxmd.com/read/27892865/co-occurrence-of-a-metastatic-mammary-liposarcoma-and-an-ovarian-sex-cord-stromal-tumor-in-a-dog
#9
M Polinas, G P Burrai, V Marras, R Ariu, M T Zedda, S Pau, E Antuofermo
Sarcoma arising in the mammary gland is a rare tumor in dogs, and primary liposarcoma with metastatic behavior has never been previously reported among canine mammary tumors. A 14-year old female poodle had a mammary mass diagnosed as pleomorphic liposarcoma. Two years following surgical removal, the tumor recurred in the mammary gland with lymph node metastases. In addition, a sex-cord stromal tumor was identified in the ovary. Immunohistochemistry was performed on both tumors that were positive for oestrogen and progesterone receptors...
October 13, 2016: Research in Veterinary Science
https://www.readbyqxmd.com/read/27891499/a-presumptive-case-of-human-rabies-a-rare-survived-case-in-rural-ghana
#10
Paschal Awingura Apanga, John Koku Awoonor-Williams, Michael Acheampong, Matthew Ayamba Adam
Rabies remains endemic in Ghana and continues to pose a major public health threat to humans and animals with a nearly 100% case fatality rate in humans. We report of a presumptive case of human rabies whose survival represents a rare occurrence in rural Ghana and worldwide. Lessons from this case study provide a critically needed focus in helping improve rabies surveillance and case management in Ghana. We report of the survival of a 36-year-old man who developed clinical rabies after he was bitten by his dog, while restraining the dog with a chain...
2016: Frontiers in Public Health
https://www.readbyqxmd.com/read/27884124/community-based-interventions-to-enhance-knowledge-protective-attitudes-and-behaviors-towards-canine-rabies-results-from-a-health-communication-intervention-study-in-guangxi-china
#11
Hairong Wu, Jiao Chen, Lianbin Zou, Liefeng Zheng, Weichao Zhang, Zhenmu Meng, Ricardo J Soares Magalhaes, Youming Wang, Jingli Kang, Xiangdong Sun
BACKGROUND: In China canine rabies poses a serious public health problem in that human mortality ranks the second highest globally. While rabies health education interventions are advocated by WHO to be critical components of modern rabies control and prevention programs, available studies have not adequately investigated the relative efficacy of their implementation in at-risk populations. This study aims to measure and compare the effect on knowledge and protective behavior towards rabies of health education interventions that include a novel Short Messaging Service via cell phone (SMS) and rabies health information sessions (IS)...
November 24, 2016: BMC Infectious Diseases
https://www.readbyqxmd.com/read/27881639/enhancement-of-osseointegration-by-direct-coating-of-rhbmp-2-on-target-ion-induced-plasma-sputtering-treated-sla-surface-for-dental-application
#12
Sungwon Kim, Cheonil Park, Byeong-Seok Moon, Hyoun-Ee Kim, Tae-Sik Jang
Owing to the excellent bioactive properties of recombinant human bone morphogenetic proteins (rhBMPs), dentistry considers them as a fascinating adjuvant alternative for enhancing bone regeneration and bone-to-implant junction in the early implantation stages. However, stable loading and delivery efficiency of rhBMPs on the implant surfaces involve major concerns because of the harsh wearing condition under load during implantation. In this study, to achieve successful rhBMP-2 delivery, a nanoporous surface structure is introduced on the sandblasting with large grit and acid-etching (SLA)-treated titanium (Ti) surface via the tantalum (Ta) target-ion induced plasma sputtering (TIPS) technique...
November 23, 2016: Journal of Biomaterials Applications
https://www.readbyqxmd.com/read/27875082/effects-of-trazodone-on-behavioral-signs-of-stress-in-hospitalized-dogs
#13
Shana E Gilbert-Gregory, Jason W Stull, Mary Rose Rice, Meghan E Herron
OBJECTIVE To determine the effects of trazodone treatment on behavioral signs of stress in hospitalized dogs. DESIGN Prospective observational study. ANIMALS 120 client-owned dogs. PROCEDURES Hospitalized dogs administered trazodone (n = 60) were observed for stress-related signs or behaviors ≤ 45 minutes after the drug was administered (time 1) and approximately 90 minutes later (time 2). Dogs that did not receive trazodone (n = 60) were selected to serve as controls for environmental stimuli that could affect behavior and were observed at the same times...
December 1, 2016: Journal of the American Veterinary Medical Association
https://www.readbyqxmd.com/read/27874836/whole-genome-sequence-snp-chips-and-pedigree-structure-building-demographic-profiles-in-domestic-dog-breeds-to-optimize-genetic-trait-mapping
#14
Dayna L Dreger, Maud Rimbault, Brian W Davis, Adrienne Bhatnagar, Heidi G Parker, Elaine A Ostrander
In the decade following publication of the draft genome sequence of the domestic dog, extraordinary advances with application to several fields have been credited to the canine genetic system. Taking advantage of closed breeding populations and the subsequent selection for aesthetic and behavioral characteristics, researchers have leveraged the dog as an effective natural model for the study of complex traits, such as disease susceptibility, behavior, and morphology, generating unique contributions to human health and biology...
November 17, 2016: Disease Models & Mechanisms
https://www.readbyqxmd.com/read/27870027/hunting-on-a-hot-day-effects-of-temperature-on-interactions-between-african-wild-dogs-and-their-prey
#15
Scott Creel, Nancy M Creel, Andrea M Creel, Bridget M Creel
As global temperatures increase, interactions between species are affected by changes in distribution, abundance and phenology, but also by changes in behavior. The heat dissipation limitation hypothesis suggests that the ability to dissipate heat commonly limits the activity of endotherms, a problem that should be particularly acute for cursorial predators and their prey in equatorial ecosystems. Allometric relationships suggest that heat dissipation should be a stronger constraint for larger species, so that (smaller) predators should be less affected than (larger) prey...
November 2016: Ecology
https://www.readbyqxmd.com/read/27865264/changes-in-serum-biomarkers-of-oxidative-stress-after-treatment-for-canine-leishmaniosis-in-sick-dogs
#16
Camila Peres Rubio, Silvia Martinez-Subiela, Asta Tvarijonaviciute, Josefa Hernández-Ruiz, Luis Pardo-Marin, Sergi Segarra, José Joaquín Ceron
Canine leishmaniosis (CanL) is a zoonotic disease being endemic in several parts of the world. In this study we investigated the behavior of a panel of biomarkers of oxidative stress in 12 sick dogs naturally infected by CanL before and at days 30 and 180 of a successful therapy with a standard treatment. The assays total oxidant status (TOS), trolox equivalent antioxidant capacity (TEAC), ferric reducing ability of plasma (FRAP), cupric reducing antioxidant capacity (CUPRAC), serum thiol and paraoxonase 1 (PON1) were included in the panel...
December 2016: Comparative Immunology, Microbiology and Infectious Diseases
https://www.readbyqxmd.com/read/27860243/lessons-from-the-canine-oxtr-gene-populations-variants-and-functional-aspects
#17
Melinda Bence, Peter Marx, Eszter Szantai, Eniko Kubinyi, Zsolt Ronai, Zsofia Banlaki
Oxytocin receptor (OXTR) acts as a key behavioral modulator of the central nervous system, affecting social behavior, stress, affiliation and cognitive functions. Variants of the Oxtr gene are known to influence behavior both in animals and humans, however, canine Oxtr polymorphisms are less characterized in terms of possible relevance to function, selection criteria in breeding and domestication. In this report, we provide a detailed characterization of common variants of the canine Oxtr gene. In particular, (1) novel polymorphisms were identified by direct sequencing of wolf and dog samples, (2) allelic distributions and pairwise linkage disequilibrium patterns of several canine populations were compared, (3) neighbor joining tree based on common SNPs was constructed, (4) mRNA expression features were assessed, (5) a novel splice variant was detected and (6) in vitro functional assays were performed...
November 11, 2016: Genes, Brain, and Behavior
https://www.readbyqxmd.com/read/27858882/pigmented-perivascular-epithelioid-cell-tumor-pecoma-arising-from-kidney-a-case-report
#18
Hexi Du, Jun Zhou, Lingfan Xu, Cheng Yang, Li Zhang, Chaozhao Liang
INTRODUCTION: Perivascular epithelioid cell tumor (PEComa) is a mesenchymal neoplasm composed of perivascular epithelioid cells with clear to eosinophilic cytoplasm. Pigmented PEComa arising from kidney is extraordinarily rare and sometimes can exhibit aggressive biological behavior. CASE REPORT: We present here a rare case of pigmented renal PEComa in a 46-year-old female. The patient had complained of lumbago complicated with nausea and vomiting for 2 weeks and therefore was referred to our department...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27854270/relationship-between-scarring-and-dog-aggression-in-pit-bull-type-dogs-involved-in-organized-dogfighting
#19
Katherine A Miller, Rachel Touroo, C Victor Spain, Kelly Jones, Pamela Reid, Randall Lockwood
When pit bull-type dogs are seized in an investigation of organized dogfighting, heavily scarred dogs are often assumed to be highly dog aggressive due to a history of fighting. These dogs may be deemed dangerous and euthanized based on scarring alone. We analyzed our existing data on dogs seized from four dogfighting investigations, examining the relationship between the dogs' scars with aggression towards other dogs. Scar and wound data were tallied in three body zones where dogfighting injuries tend to be concentrated...
November 15, 2016: Animals: An Open Access Journal From MDPI
https://www.readbyqxmd.com/read/27852251/understanding-action-control-of-daily-walking-behavior-among-dog-owners-a-community-survey
#20
Ryan E Rhodes, Clarise Lim
BACKGROUND: Walking among dog owners may be a means to achieve health benefits, yet almost half of owners (approximately 30% of households) are not regularly walking their dogs. Current research on the correlates of dog walking has generally considered intention as the primary determinant of behavior, yet the intention-behavior relationship is modest. The purpose of this paper was to apply a framework designed to evaluate the intention-behavior gap, known as multi-process action control (M-PAC), to understand daily walking among dog owners...
November 16, 2016: BMC Public Health
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