Open Access. Powered by Scholars. Published by Universities.®

Animal Studies Commons™

Open Access. Powered by Scholars. Published by Universities.®

Discipline
Institution
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 1411 - 1440 of 3153

Full-Text Articles in Animal Studies

A Review Of The Institute Of Medicine’S Analysis Of Using Chimpanzees In Biomedical Research, Robert C. Jones, Ray Greek Jun 2014

A Review Of The Institute Of Medicine’S Analysis Of Using Chimpanzees In Biomedical Research, Robert C. Jones, Ray Greek

Biomedicine and Animal Models in Research Collection

We argue that the recommendations made by the Institute of Medicine’s 2011 report, Chimpanzees in Biomedical and Behavioral Research: Assessing the Necessity, are methodologically and ethically confused. We argue that a proper understanding of evolution and complexity theory in terms of the science and ethics of using chimpanzees in biomedical research would have had led the committee to recommend not merely limiting but eliminating the use of chimpanzees in biomedical research. Specifically, we argue that a proper understanding of the difference between the gross level of examination of species and examinations on finer levels can shed light on important methodological …


Behaviors That Predict Personality Components In Adult Free-Ranging Tibetan Macaques (Macaca Thibetana), Alexander J. Pritchard, Lori K. Sheeran, Kara I. Gabriel, Jin-Hua Li, Ronald S. Wagner Jun 2014

Behaviors That Predict Personality Components In Adult Free-Ranging Tibetan Macaques (Macaca Thibetana), Alexander J. Pritchard, Lori K. Sheeran, Kara I. Gabriel, Jin-Hua Li, Ronald S. Wagner

Anthropology and Museum Studies Faculty Scholarship

To further the potential for applied personality studies, we present a methodology for assessing personality in nonhuman animals without a priori assumptions, using behavioral measures to discriminate personality survey results. Our study group consisted of 12 free-ranging, provisioned, adult Tibetan macaques (Macaca thibetana) at the Valley of the Wild Monkeys, China. We asked familiar Chinese park guards and scientists to rate each of the 12 macaques using 27-item personality surveys. We also recorded behavioral observations (> 100 hrs) from August–September, 2012. The personality surveys showed reliability in 22 of the items that were then utilized in a principal component analysis …


Endothelial And Smooth Muscle-Dependent Vascular Reactivity In Immature Arterialized Collateral Capillaries, Caitlin Koeroghlian Jun 2014

Endothelial And Smooth Muscle-Dependent Vascular Reactivity In Immature Arterialized Collateral Capillaries, Caitlin Koeroghlian

Biomedical Engineering

Peripheral arterial occlusive disease (PAOD) occurs due to the build up of atherosclerotic plaque and reduces blood flow to cause chronic ischemia. Patients with PAOD may experience intermittent claudication, or the pain in limb skeletal muscles due to a decease in blood flow. Collateral arteries can act as a natural bypass and improve blood flow to hypoxic tissue by creating an alternate route for blood to flow, but not all patients with PAOD have pre-existing collateral networks. Animal studies indicate that tissues without pre-existing collateral networks can form de novo collaterals from capillaries following occlusion of a feed artery. Unfortunately, …


An Hsi Fact Sheet: The Environmental, Public Health, And Social Impacts Of Pig Factory Farming, Humane Society International May 2014

An Hsi Fact Sheet: The Environmental, Public Health, And Social Impacts Of Pig Factory Farming, Humane Society International

HSI FACT SHEETS

Since the mid-20th century, small, extensive farms have given way to massive, commercial pig production facilities. In 2009, more than 1.3 billion pigs were raised and slaughtered globally. Between 1980 and 2000, though world pork production nearly doubled, there was a decrease in the total number of farms. Large industrial farm animal production facilities, or factory farms, that often confine thousands of pigs indoors, are becoming more widespread throughout the world, particularly in developing countries. Factory farms are now responsible for more than half of all global pork production.

A significant implication of the shift toward factory farms has been …


An Hsi Fact Sheet: Avian Influenza In India, Humane Society International May 2014

An Hsi Fact Sheet: Avian Influenza In India, Humane Society International

HSI FACT SHEETS

Avian influenza (AI), commonly known as bird flu, typically causes little or no harm to its wild waterfowl hosts. In 2003-2004, however, nine Asian countries reported unprecedented outbreaks of high-mortality AI in domestic poultry. This viral lineage, subtype H5N1, has spread to over 60 countries, and is considered endemic in at least four.

In India, H5N1 outbreaks were first recorded in 2006, and have continued each year since, reaching a total of 86 by 2012. Millions of India’s chickens and ducks have been culled in efforts to contain and eliminate the virus. India has declared itself free of AI a …


An Hsi Fact Sheet: Biosecurity Challenges Of Industrial Farm Animal Production, Humane Society International May 2014

An Hsi Fact Sheet: Biosecurity Challenges Of Industrial Farm Animal Production, Humane Society International

HSI FACT SHEETS

Industrial farm animal production (IFAP) has become increasingly common throughout the world. Worldwide, industrial systems now account for approximately two-thirds of poultry meat production and half of egg and pig meat production, with developing countries already producing approximately half of the world’s industrial pork and poultry by 2006.

Inherent design and operational requirements of IFAP facilities can create biosecurity problems with both bioexclusion and biocontainment—efforts to prevent the respective influx and efflux of pathogens. These may help explain why large commercial flocks may be up to 10,000 times more likely to report outbreaks with pathogens such as highly pathogenic avian …


A Longitudinal View Of Primate Life In Two American Laboratories, Jonathan Balcombe May 2014

A Longitudinal View Of Primate Life In Two American Laboratories, Jonathan Balcombe

Experimentation Collection

If representative of other facilities, our findings uncover serious welfare concerns for the wellbeing of primates kept in American research facilities. These animals face regular or chronic sources of pain and distress including noxious experimental and non‐experimental events and illness and injury; and severe and prolonged social disruptions. Pain relief is meager by comparison to that normally provided to humans, despite legislative requirements to minimize pain and distress and assume similarity to humans in terms of ability to experience pain and distress. Living environments are usually confinement indoors to a metal cage, often alone, and often with a minimum of …


Economic Contribution Of Agriculture And Food To Arkansas' Gross Domestic Product 1997-2011, Jacob Manlove, Leah English, Jennie Popp, Wayne Miller May 2014

Economic Contribution Of Agriculture And Food To Arkansas' Gross Domestic Product 1997-2011, Jacob Manlove, Leah English, Jennie Popp, Wayne Miller

AAES Research Reports and Research Bulletins

Agricultural production, processing, and retail industries are major contributors to the Arkansas economy in terms of GDP. Agriculture contributes to the economy through direct agricultural production, value-added processing, and agricultural retail activities, and it also plays an important role through its interactions with other sectors. The use of non-agricultural goods and services as inputs into the agricultural sector promotes diversified growth in Arkansas’ economy; thus agriculture remains a vital part of Arkansas’ economy. Part 1 of the report compares the relative size of the Agriculture and Food Sector in Arkansas with those of neighboring states, the Southeastern region of the …


Estimating The Economic Value Of Australian Stock Herding Dogs, E. R. Arnott, J. B. Early, C. M. Wade, P. D. Mcgreevy May 2014

Estimating The Economic Value Of Australian Stock Herding Dogs, E. R. Arnott, J. B. Early, C. M. Wade, P. D. Mcgreevy

Sport and Working Animal Welfare Collection

This study aimed to estimate the value of the typical Australian herding dog in terms of predicted return on investment. This required an assessment of the costs associated with owning herding dogs and estimation of the work they typically perform. Data on a total of 4,027 dogs were acquired through The Farm Dog Survey which gathered information from 812 herding dog owners around Australia. The median cost involved in owning a herding dog was estimated to be a total of AU$7,763 over the period of its working life. The work performed by the dog throughout this time was estimated to …


Juvenile Domestic Pigs (Sus Scrofa Domestica) Use Human-Given Cues In An Object Choice Task, Christian Nawroth, Mirjam Ebersbach, Eberhard Von Borell May 2014

Juvenile Domestic Pigs (Sus Scrofa Domestica) Use Human-Given Cues In An Object Choice Task, Christian Nawroth, Mirjam Ebersbach, Eberhard Von Borell

Social Cognition Collection

Research on the comprehension of human-given cues by domesticated as well as non-domesticated species has received considerable attention over the last decade. While several species seem to be capable of utilizing these cues, former work with domestic pigs (Sus scrofa domestica) has shown inconclusive results. In this study, we investigated the use of human-given cues in an object choice task by young domestic pigs (N = 17; seven weeks of age) who had very limited human contact prior to the experiments. Subjects had to choose between two bowls of which only one was baited with a reward. Over the course …


Attitudes Of Canadian Citizens Toward Farm Animal Welfare: A Qualitative Study, Jeffrey M. Spooner, Catherine A. Schuppli, David Fraser May 2014

Attitudes Of Canadian Citizens Toward Farm Animal Welfare: A Qualitative Study, Jeffrey M. Spooner, Catherine A. Schuppli, David Fraser

Farm Animal Welfare Collection

As part of a larger project to determine if there are animal-welfare-related values shared by some commercial food–animal producers and non-producers in Canada, open-ended, semi-structured interviews were conducted to elicit opinions about animal welfare among 24 urban and rural residents not involved in commercial animal production. All participants possessed a self-described interest in food animal well-being and were therefore assumed to represent the views of Canadian non-producers most apt to engage in efforts to shape the animal welfare policies of governments and businesses. Participants described animal welfare in moral or ethical terms, expressed virtually unanimous support for animals having access …


Biology, Culture, And The Origins Of Pet-Keeping, Harold Herzog May 2014

Biology, Culture, And The Origins Of Pet-Keeping, Harold Herzog

Human-Companion Animal Relationships Collection

Attachments between non-human animals of different species are surprisingly common in situations involving human agency (e.g., homes, zoos, and wildlife parks). However, cross-species animal friendships analogous to pet-keeping by humans are at least rare and possibly non-existent in nature. Why has pet-keeping evolved only in Homo sapiens? I review theories that explain pet-keeping either as an adaptation or an evolutionary by-product. I suggest that these explanations cannot account for the wide variation in the distribution and forms of pet-keeping across human societies and over historical time. Using fluctuations in the popularity of dog breeds in the United States, I show …


Fact Sheet: The Environmental, Public Health, And Social Impacts Of Pig Factory Farming May 2014

Fact Sheet: The Environmental, Public Health, And Social Impacts Of Pig Factory Farming

Agribusiness Reports

No abstract provided.


The Efficacy Of Probiotic Bacterial Isolates In Reducing Cecal Camylobacter Colonization In Broiler Chickens, Komala Arsi May 2014

The Efficacy Of Probiotic Bacterial Isolates In Reducing Cecal Camylobacter Colonization In Broiler Chickens, Komala Arsi

Graduate Theses and Dissertations

Campylobacter is the leading cause of foodborne illness worldwide and human illnesses are often associated with consumption of poultry or poultry products. Many strategies have been tried to eliminate Campylobacter from poultry with limited success. One of the strategies to reduce Campylobacter colonization in poultry is by use of probiotics. We conducted 2 separate studies to evaluate the efficacy of probiotics against Campylobacter in broiler chickens. For our first study, GRAS (Generally Regarded as Safe) bacteria were isolated from healthy chickens and tested their efficacy against Campylobacter in vitro. Twenty six isolates with in vitro anti-Campylobacter activity were …


Approaches To Canine Health Surveillance, Dan G. O'Neill, David B. Church, Paul D. Mcgreevy, Peter C. Thomson, Dave C. Brodbelt Apr 2014

Approaches To Canine Health Surveillance, Dan G. O'Neill, David B. Church, Paul D. Mcgreevy, Peter C. Thomson, Dave C. Brodbelt

Epidemiology Collection

Effective canine health surveillance systems can be used to monitor disease in the general population, prioritise disorders for strategic control and focus clinical research, and to evaluate the success of these measures. The key attributes for optimal data collection systems that support canine disease surveillance are representativeness of the general population, validity of disorder data and sustainability. Limitations in these areas present as selection bias, misclassification bias and discontinuation of the system respectively. Canine health data sources are reviewed to identify their strengths and weaknesses for supporting effective canine health surveillance. Insurance data benefit from large and well-defined denominator populations …


Exclusion Performance In Dwarf Goats (Capra Aegagrus Hircus) And Sheep (Ovis Orientalis Aries), Christian Nawroth, Eberhard Von Borell, Jan Langbein Apr 2014

Exclusion Performance In Dwarf Goats (Capra Aegagrus Hircus) And Sheep (Ovis Orientalis Aries), Christian Nawroth, Eberhard Von Borell, Jan Langbein

Learning Ability Collection

Using a comparative approach, we investigated the ability of dwarf goats and sheep to use direct and indirect information about the location of a food reward in an object-choice task. Subjects had to choose between two cups with only one covering a reward. Before making a choice, subjects received information about the baited (direct information) or nonbaited cup (indirect information). Both goats and sheep were able to use direct information (presence of food) in the object choice task. After controlling for local enhancement, we found that goats rather than sheep were able to use indirect information (i.e., the absence of …


Moving Beyond The Welfare Standard Of Psychological Well-Being For Nonhuman Primates: The Case Of Chimpanzees, John P. Gluck Apr 2014

Moving Beyond The Welfare Standard Of Psychological Well-Being For Nonhuman Primates: The Case Of Chimpanzees, John P. Gluck

Experimentation Collection

Since 1985, the US Animal Welfare Act and Public Health Service policy have required that researchers using nonhuman primates in biomedical and behavioral research develop a plan ‘‘for a physical environment adequate to promote the psychological well-being of primates.’’ In pursuing this charge, housing attributes such as social companionship, opportunities to express species-typical behavior, suitable space for expanded locomotor activity, and nonstressful relationships with laboratory personnel are dimensions that have dominated the discussion. Regulators were careful not to direct a specific set of prescriptions (i.e., engineering standards) for the attainment of these goals, but to leave the design of the …


Rethinking The Ethics Of Research Involving Nonhuman Animals: Introduction, Tom L. Beauchamp, Hope Ferdowsian, John P. Gluck Apr 2014

Rethinking The Ethics Of Research Involving Nonhuman Animals: Introduction, Tom L. Beauchamp, Hope Ferdowsian, John P. Gluck

Experimentation Collection

No abstract provided.


Abolition Then And Now: Tactical Comparisons Between The Human Rights Movement And The Modern Nonhuman Animal Rights Movement In The United States, Corey Lee Wrenn Apr 2014

Abolition Then And Now: Tactical Comparisons Between The Human Rights Movement And The Modern Nonhuman Animal Rights Movement In The United States, Corey Lee Wrenn

Animal Rights Movement Collection

This article discusses critical comparisons between the human and nonhuman abolitionist movements in the United States. The modern nonhuman abolitionist movement is, in some ways, an extension of the anti-slavery movement of the eighteenth and nineteenth centuries and the ongoing human Civil Rights movement. As such, there is considerable overlap between the two movements, specifically in the need to simultaneously address property status and oppressive ideology. Despite intentional appropriation of terminology and numerous similarities in mobilization efforts, there has been disappointingly little academic discussion on this relationship. There are significant contentions regarding mobilization and goal attainment in the human abolitionist …


Long-Lasting Sensitization Induced By Repeated Risperidone Treatment In Adolescent Sprague-Dawley Rats: A Possible D2 Receptor Mediated Phenomenon?, Jing Qiao, Jun Gao, Qing Shu, Qinglin Zhang, Gang Hu, Ming Li Apr 2014

Long-Lasting Sensitization Induced By Repeated Risperidone Treatment In Adolescent Sprague-Dawley Rats: A Possible D2 Receptor Mediated Phenomenon?, Jing Qiao, Jun Gao, Qing Shu, Qinglin Zhang, Gang Hu, Ming Li

Department of Psychology: Faculty Publications

Rationale Risperidone use in children and adolescents for the treatment of various neuropsychiatric disorders (e.g., schizophrenia, autism, disruptive behavior, etc.) has increased substantially in recent decades. However, its long-term effect on the brain and behavioral functions is not well understood. Objective The present study investigated how a short-term risperidone treatment in adolescence impacts antipsychotic response in adulthood in the conditioned avoidance response and phencyclidine (PCP)-induced hyperlocomotion tests. Methods Male adolescent Sprague-Dawley rats (postnatal days [P] 40–44 or 43–48) were first treated with risperidone (0.3, 0.5, or 1.0 mg/kg, subcutaneously (sc)) and tested in the conditioned avoidance or PCP (3.2 mg/kg, …


Goats Excel At Learning And Remembering A Highly Novel Cognitive Task, Elodie F. Briefer, Samaah Haque, Luigi Baciadonna, Alan G. Mcelligott Mar 2014

Goats Excel At Learning And Remembering A Highly Novel Cognitive Task, Elodie F. Briefer, Samaah Haque, Luigi Baciadonna, Alan G. Mcelligott

Sentience Collection

Introduction: The computational demands of sociality (maintaining group cohesion, reducing conflict) and ecological problems (extractive foraging, memorizing resource locations) are the main drivers proposed to explain the evolution cognition. Different predictions follow, about whether animals would preferentially learn new tasks socially or not, but the prevalent view today is that intelligent species should excel at social learning. However, the predictions were originally used to explain primate cognition, and studies of species with relatively smaller brains are rare. By contrast, domestication has often led to a decrease in brain size, which could affect cognition. In domestic animals, the relaxed selection pressures …


The Morality Of Marathon Dog Races, Harold Herzog Mar 2014

The Morality Of Marathon Dog Races, Harold Herzog

'Animals and Us' Blog Posts

Is dog sled racing a form of fun or animal abuse?


Fallow Bucks Attend To Vocal Cues Of Motivation And Fatigue, Benjamin J. Pitcher, Elodie F. Briefer, Elisabetta Vannoni, Alan G. Mcelligott Mar 2014

Fallow Bucks Attend To Vocal Cues Of Motivation And Fatigue, Benjamin J. Pitcher, Elodie F. Briefer, Elisabetta Vannoni, Alan G. Mcelligott

Sentience Collection

Vocalizations encode a range of information about the caller, and variation in calling behavior and vocal structure may provide listeners with information about the motivation and condition of the caller. Fallow bucks only vocalize during the breeding season and can produce more than 3000 groans per hour. Males modulate their calling rates, calling faster when other calling males and/or females are nearby. Groans also reveal caller fatigue, becoming shorter and higher pitched toward the end of the rut. Thus, fallow deer groans vary both over very short (minute to minute) and longer timescales (the rut). However, no studies have investigated …


Learning And Memory In The Port Jackson Shark, Heterodontus Portusjacksoni, Tristan L. Guttridge, Culum Brown Mar 2014

Learning And Memory In The Port Jackson Shark, Heterodontus Portusjacksoni, Tristan L. Guttridge, Culum Brown

Sentience Collection

Basic understanding of the fundamental principles and mechanisms involved in learning is lacking for elasmobranch fishes. Our aim in this study was to experimentally investigate the learning and memory capacity of juvenile Port Jackson sharks, Heterodontus portusjacksoni. Sharks (N = 30) were conditioned over a 19-day period to associate an underwater LED light or stream of air-bubbles [conditioned stimulus (CS)] with a food reward [unconditioned stimulus (US)], using three procedures (delay, trace and control). During experiments, the CS signalled at a random time between 180 and 300 s for 30 s (six times per day). For the delay the US …


Prevalence Of Disorders Recorded In Dogs Attending Primary-Care Veterinary Practices In England, Dan G. O'Neill, David B. Church, Paul D. Mcgreevy, Peter C. Thomson, Dave C. Brodbelt Mar 2014

Prevalence Of Disorders Recorded In Dogs Attending Primary-Care Veterinary Practices In England, Dan G. O'Neill, David B. Church, Paul D. Mcgreevy, Peter C. Thomson, Dave C. Brodbelt

Epidemiology Collection

Purebred dog health is thought to be compromised by an increasing occurence of inherited diseases but inadequate prevalence data on common disorders have hampered efforts to prioritise health reforms. Analysis of primary veterinary practice clinical data has been proposed for reliable estimation of disorder prevalence in dogs. Electronic patient record (EPR) data were collected on 148,741 dogs attending 93 clinics across central and south-eastern England. Analysis in detail of a random sample of EPRs relating to 3,884 dogs from 89 clinics identified the most frequently recorded disorders as otitis externa (prevalence 10.2%, 95% CI: 9.1–11.3), periodontal disease (9.3%, 95% CI: …


The Dog Show Vs. The Olympics: The Judges' Dilemma, Harold Herzog Feb 2014

The Dog Show Vs. The Olympics: The Judges' Dilemma, Harold Herzog

'Animals and Us' Blog Posts

Why Olympic snowboard judging is better than Westminster Dog Show judging


Personality Affects Learning And Trade-Offs Between Private And Social Information In Guppies, Poecilia Reticulate, Larissa Trompf, Culum Brown Feb 2014

Personality Affects Learning And Trade-Offs Between Private And Social Information In Guppies, Poecilia Reticulate, Larissa Trompf, Culum Brown

Sentience Collection

The acquisition of information such as the location and quality of food, mates or shelter is a key survival requirement for animals. Individuals can acquire information through personal experience (private information) or through observing and interacting with others (social information). Environmental spatial and temporal heterogeneity can mean that sometimes social information conflicts with private knowledge. We tested how personality affected the importance placed on public versus private information in wild female guppies when these two information sources came into conflict. We found that boldness and sociality affected decisions to use conflicting social and private information. Bolder females used social information …


Heat Stress: A Major Contributor To Poor Animal Welfare Associated With Long-Haul Live Export Voyages, Malcolm P. Caulfield, Heather Cambridge, Susan F. Foster, Paul D. Mcgreevy Feb 2014

Heat Stress: A Major Contributor To Poor Animal Welfare Associated With Long-Haul Live Export Voyages, Malcolm P. Caulfield, Heather Cambridge, Susan F. Foster, Paul D. Mcgreevy

Transport of Farm Animals Collection

Recent investigations by the Australian Department of Agriculture, Fisheries and Forestry into high mortalities on live export voyages from Australia to the Middle East during the Northern hemisphere summer suggest that animal welfare may be compromised by heat stress. The live export industry has generated a computer model that aims to assess the risk of heat stress and to contain mortality levels on live export ships below certain arbitrary limits. Although the model must be complied with under Australian law, it is not currently available for independent scientific scrutiny, and there is concern that model and the mandated space allowances …


Effects Of 5-Hydroxytryptamine 2c Receptor Agonist Mk212 And 2a Receptor Antagonist Mdl100907 On Maternal Behavior In Postpartum Female Rats, Weihai Chen, Qi Zhang, Wenxin Su, Yu Yang, Jing Qiao, Nan Sui, Ming Li Feb 2014

Effects Of 5-Hydroxytryptamine 2c Receptor Agonist Mk212 And 2a Receptor Antagonist Mdl100907 On Maternal Behavior In Postpartum Female Rats, Weihai Chen, Qi Zhang, Wenxin Su, Yu Yang, Jing Qiao, Nan Sui, Ming Li

Department of Psychology: Faculty Publications

Maternal behavior in rats is a highly motivated and well-organized social behavior. Given the known roles of serotonin (5-HT) in emotion, motivation, social behavior, and major depression – and its known interaction with dopamine – it is likely that serotonin also plays a crucial role in this behavior. So far, there are surprisingly few studies focusing on 5-HT in maternal behavior, except for maternal aggression. In the present study,we examined the effects of 5-HT2C receptor agonism and 5-HT2A receptor antagonism on maternal behavior in postpartum female rats.We hypothesized that activation of 5-HT2C receptors and blockade of 5-HT …


The Influence Of Topographic And Dynamic Cyclic Variables On The Distribution Of Small Cetaceans In A Shallow Coastal System, Marijke N. De Boer, Mark P. Simmonds, Peter J.H. Reijnders, Geert Aarts Jan 2014

The Influence Of Topographic And Dynamic Cyclic Variables On The Distribution Of Small Cetaceans In A Shallow Coastal System, Marijke N. De Boer, Mark P. Simmonds, Peter J.H. Reijnders, Geert Aarts

Ecology Collection

The influence of topographic and temporal variables on cetacean distribution at a fine-scale is still poorly understood. To study the spatial and temporal distribution of harbour porpoise Phocoena phocoena and the poorly known Risso’s dolphin Grampus griseus we carried out land-based observations from Bardsey Island (Wales, UK) in summer (2001–2007). Using Kernel analysis and Generalized Additive Models it was shown that porpoises and Risso’s appeared to be linked to topographic and dynamic cyclic variables with both species using different core areas (dolphins to the West and porpoises to the East off Bardsey). Depth, slope and aspect and a low variation …