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1.
BMC Vet Res ; 20(1): 122, 2024 Mar 27.
Artigo em Inglês | MEDLINE | ID: mdl-38532474

RESUMO

BACKGROUND: Rabbits are popular family pets. They are prey species and so have evolved to hide signs of illness and pain. Recent research has developed robust pain scales for use in a clinical setting, but to date none has examined rabbit owners' ability to recognise pain in their animals. This study investigated how owners identify pain in their pet rabbits and their ability to correctly identify different levels of pain, in order to determine any need for owner education in this area. METHODS: Owners were recruited via Facebook and a two-part online survey was distributed. Part one collected data on demographics, owners' knowledge of pain signs and beliefs about pain in rabbits. Part two asked respondents to pain score eight videos of rabbits in different levels of pain for comparison to pain scores made by three experts. We used a simplified version of the Bristol Rabbit Pain Score (BRPS) which involved a single 0 to 3 scale. We explored the number of pain signs each respondent could list, the total score given to the videos, and their deviation from the experts' scores. RESULTS: A total of 500 respondents completed part one of the survey and 345 additionally completed Part two. Respondents were on average able to state five signs of pain (range 0-12), but females stated significantly more (p = 0.018), as did those who worked with rabbits (p = 0.004) and those with experience of their rabbit having an operation (p = 0.01). Overall, 98.6% of respondents thought rabbits felt pain as much or more that dogs and cats. In Part two, respondents more frequently agreed with the experts when identifying rabbits in no pain (88.8%) and severe pain (65.2%), but there was lower agreement when identifying mild (28.4%) and moderate pain (43.2%). Respondents overall rated pain lower than experts with an average total pain score of 11.9 compared to 18 given by the experts. CONCLUSIONS: Most rabbit owners are able to list numerous pain signs and are generally able to identify pain-free rabbits and those in severe pain. Owners' ability to differentiate between mild and moderate pain is more limited and could benefit from training in the subtler signs of pain. Veterinary professionals are well placed to educate owners about signs of pain in rabbits and should be aware of areas where owners' knowledge can be improved.


Assuntos
Doenças do Gato , Doenças do Cão , Humanos , Feminino , Coelhos , Animais , Gatos , Cães , Propriedade , Animais de Estimação , Dor/veterinária , Inquéritos e Questionários , Reino Unido
2.
Anim Welf ; 33: e14, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38510426

RESUMO

Horse obesity is a growing concern that can result in negative welfare. The role horse owners play in horse weight management is not well understood. This study aimed to: (1) explore the attitudes, beliefs, and perceptions of owners with overweight or obese horses regarding their horses' weight; and (2) understand the motivators and barriers for owners to implement, improve and maintain weight management-related strategies. A semi-structured interview guide based on the Theoretical Domains Framework was developed. Qualitative interviews were conducted with 24 owners in Prince Edward Island, Canada whose horse(s) were previously classified as overweight or obese by a veterinarian. Interviews were analysed using template analysis, organising patterns in the data into a codebook and overarching themes. Owners believed horse weight management was important, however, their perceived complexity of the issue made the implementation of the weight management practices difficult. Owners held conflicting perceptions, viewing overweight horses as well cared for, yet recognised these horses were at increased risk for negative health outcomes. Ultimately, participants felt emotionally torn about compromising their horse's mental well-being to address weight issues. Owners considered the practicality of weight-management strategies, the strategies' effectiveness, and whether recommended strategies aligned with their beliefs regarding good horse care practices. Knowledge was embedded into owners' understanding of horse weight, however, some highlighted that traditional knowledge dominates the equine industry hindering systemic industry change. Increased understanding of the effectiveness and impacts of weight management strategies on horses and fostering a society that recognises and accepts horses within a healthy weight range are warranted.

3.
BMC Health Serv Res ; 23(1): 1069, 2023 Oct 06.
Artigo em Inglês | MEDLINE | ID: mdl-37803397

RESUMO

BACKGROUND: Private small-sized care homes (<50 beds)  have proliferated across China, however, until recently little was known about the characteristics of such institutions, and the challenges and the problems faced by their owners. This study aimed to explore the characteristics of small-sized, privately-owned care homes in the People's Republic of China; and to understand the motivation and challenges faced by their owners. METHODS: This study used an interpretative phenomenological analysis approach of qualitative research. Owners of eight small-sized private care homes located in two cities of Henan Province, China, were interviewed using semi-structured interviews. RESULTS: Four themes and eight subthemes were identified: 1. Motivation for establishing a care home business; 2. Certification and establishing a legal footing for the business; 3. Operational challenges; 4. Future business development. The study found that the development of privately owned small-sized care homes faced great challenges and critical survival problems due to policies, staffing, and management issues. There is a lack of regulations about the safety and quality of care provided for older people and a lack of legal protections for the owners of small-sized private care homes. CONCLUSION: The study suggests that formal regulations and provisions are needed to support these smaller-sized private care homes. Monitoring is also needed to ensure the quality of care. It also suggests that there needs more support by policymakers as well as provision monitoring services to improve quality of care in these care homes. Care regulations and standards are not unique to China so findings from this study can be applied to places where there are similar situations or if there are aged care services still developing.


Assuntos
Motivação , Políticas , Humanos , Idoso , Pesquisa Qualitativa , China , Recursos Humanos
4.
Anim Welf ; 32: e45, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38487438

RESUMO

Concerns over compromised companion rabbit (Oryctolagus cuniculus domesticus) welfare are widespread. The welfare problems have been linked to the perception of rabbits as low investment 'children's pets.' To test this hypothesis and investigate the current conditions for rabbits, data were gathered from two surveys in 2021: a nationally representative survey of Danish companion animal owners (Survey I) and a detailed social media-based survey of Danish rabbit owners (Survey II). Using logistic regression, three owner-related variables (whether a child/adult was responsible for care of the rabbit, owner-opinion on rabbits' suitability as 'starter pets' and willingness-to-pay [WTP] for veterinary treatment) were employed to investigate the effect of rabbit status on owner-provision of selected husbandry conditions. The 76 (Survey I) and 4,335 (Survey II) responses suggested that most rabbits are acquired for children and are solitarily housed, and that many are kept in cages of an unsuitable size and not checked daily. Owners who perceived rabbits as 'starter pets' and with lower WTP were more likely to house rabbits in restricted space and to not provide continuous gnawing opportunities, ad libitum hay or routine healthcare. A child fulfilling the role of the rabbit's main caretaker was also associated with inadequate housing type and fewer gnawing opportunities. Thus, many rabbits live in unsuitable conditions, and owners who perceive rabbits as low investment 'children's pets' are more likely to not provide recommended resources. Changing owners' perceptions of rabbits and promoting suitable husbandry through official education programmes and minimum requirements is important if there are to be improvements made to rabbit welfare.

5.
Int J Audiol ; 62(6): 571-578, 2023 06.
Artigo em Inglês | MEDLINE | ID: mdl-35412406

RESUMO

OBJECTIVE: To canvas the views of Australia-based hearing healthcare clinic owners/managers and reception staff regarding the utilisation, experiences and perspectives of providing tele-audiology services during the COVID-19 pandemic. DESIGN: A national prospective self-report survey was completed online. Data were analysed using descriptive statistics. STUDY SAMPLE: Twenty-one clinic owners/managers (Mage 54.43 years, 15 female) and 58 reception staff (Mage 42.88 years, 49 female) from Australia-based hearing clinics. RESULTS: Clinic owners/managers reported an increase in use of tele-audiology services as compared to pre-COVID-19. Reception staff reported providing more advice and support to clients over the phone. Both clinic owners/managers and reception staff indicated key barriers to providing tele-audiology services to include concerns about their clients' digital and technological literacy and the perception that in-the-clinic appointments deliver better client outcomes than tele-audiology appointments. CONCLUSIONS: The increased utilisation of tele-audiology services observed appears to be largely influenced by COVID-19 related factors (e.g. maintaining client and staff safety and increased funding). It is therefore possible that utilisation of tele-audiology service may drop once the threat of the pandemic has subsided. Perceived barriers relating to clients' digital literacy and the effectiveness of tele-audiology services require attention to safeguard the future of tele-audiology service delivery in Australia.


Assuntos
Audiologia , COVID-19 , Humanos , Feminino , Pessoa de Meia-Idade , Adulto , Pandemias , Estudos Prospectivos , COVID-19/epidemiologia , Austrália/epidemiologia
6.
Prev Med ; 164: 107066, 2022 11.
Artigo em Inglês | MEDLINE | ID: mdl-35461957

RESUMO

One way to reduce firearm suicide is to keep household guns away from a person at risk for suicide. To learn who owned (and presumably controlled access to) the guns used in suicide and which broad gun type they were, we examined National Violent Death Reporting System (NVDRS) data from 2015 to 2017 for five US states that supplied information on gun owner in over 80% of firearm suicides (AK, IA, NH, UT, WI). For adult males, 88% used their own gun; for women, 52% used their own gun and 32% used their partner's gun; for youth ages 18-20, 42% used their own gun, 43% used a family member's, and 8% used a friend's; for children, 19% used their own gun (usually a long gun) and 79% used a family member's gun. Almost 3/4 of firearm suicides involved a handgun, ranging from 62% for youth to 92% for women. In times of suicide risk, interventions for a youth should address not only the parents' guns, but those of other family members and the youth's own rifle or shotgun. For a woman, interventions need to address her own and her partner's guns. For a man, locking guns alone will confer little protection if he controls the keys or combination. Storing firearms-or a critical component-away from home or having someone else control the locks may be safer. Five NVDRS states provided useful data on who owned the gun used in firearm suicides. More NVDRS states should follow suit.


Assuntos
Armas de Fogo , Prevenção do Suicídio , Adulto , Criança , Masculino , Humanos , Adolescente , Feminino , Adulto Jovem , Violência , Família , Características da Família
7.
BMC Vet Res ; 18(1): 147, 2022 Apr 22.
Artigo em Inglês | MEDLINE | ID: mdl-35459132

RESUMO

BACKGROUND: Limb amputation may be recommended in domestic cats following a severe injury or disease. The purpose of the study was to report the signalment, the complications, recovery outcome, owner satisfaction and expectations of domestic cats following limb amputation. RESULTS: Medical records of 3 specialty hospitals were reviewed for cats that received a single limb amputation in a 10 year period (2007-2017). These cat owners were contacted, and 59 owners completed surveys, comprising the study population. The most common reasons for limb amputation were neoplasia (54.2%, 32/59), traumatic injury (40.7%, 24/59), bone or joint infection (3.4%, 2/59), and thromboembolism (1.7%, 1/59). Thirty-four cats (57.6%) had postoperative complications. Of the fifty-nine surveys, 52.5% reported minor complications and 5.1% reported major complications. There were no differences in postoperative complication rates for thoracic versus pelvic limb amputations. All owners reported either excellent (77.9%, 46/59), good (20.3% 12/59), or fair (1.7%, 1/59) satisfaction with the procedure. Based on their previous experiences, 84.7% (50/59) of owners would elect limb amputation if medically warranted for another pet. The remaining 15.3% of owners who would not elect limb amputation again had experienced death of their pet with a median survival time of 183 days. CONCLUSION: Owners reported a positive satisfaction when considering complications, recovery outcome, and expectations. This study can be used by veterinarians to guide cat owners in the decision making process of limb amputation.


Assuntos
Doenças do Gato , Médicos Veterinários , Amputação Cirúrgica/veterinária , Animais , Doenças do Gato/cirurgia , Gatos , Humanos , Satisfação Pessoal , Complicações Pós-Operatórias/epidemiologia , Complicações Pós-Operatórias/veterinária , Inquéritos e Questionários
8.
BMC Vet Res ; 18(1): 203, 2022 May 27.
Artigo em Inglês | MEDLINE | ID: mdl-35624502

RESUMO

BACKGROUND: The indiscriminate use and the similarity of prescribed antibiotics especially beta-lactams in human and small animal medicine, along with the close communication between pets and humans, increases the risk of the transfer of antibiotic-resistant bacteria and/or resistance elements especially integrons, between them. Therefore, we aimed to compare the frequencies of extended spectrum beta-lactamase (ESBL)-producing strains, major ESBL genes, classes 1 and 2 integrons, and antibiotic resistance patterns of fecal Escherichia coli (E. coli) isolates from dogs and their owners. METHODS: The present study was conducted on 144 commensal E. coli isolates from the feces of 28 healthy dog-owner pairs and 16 healthy humans who did not own pets. Phenotypic confirmatory test was used to identify the frequencies of ESBL-producing E. coli. Frequencies of blaCTX-M, blaSHV, and blaTEM genes, and also classes 1 and 2 integrons were determined by polymerase chain reaction. Resistance against 16 conventional antibiotics was determined by disk diffusion technique. RESULTS: ESBL-production status was similar between the E. coli isolates of 71.4% of dog-owner pairs. The E. coli isolates of 75, 60.7, and 85.7% of dog-owner pairs were similar in terms of the presence or absence of blaCTX-M, blaTEM, and blaSHV genes, respectively. The presence or absence of class 1 and class 2 integrons was the same in E. coli isolates of 57.1% of dog-owner pairs. Prevalence of resistance to chloramphenicol and tetracycline was significantly higher in E. coli isolates of dogs than owners, but for other 10 (83.3%) tested antibiotics, no statistically significant difference was found in prevalence of antibiotic resistance between dogs and owners isolates. Furthermore, the antibiotic-resistance profile was the same in the E. coli isolates of 14.3% of dog-owner pairs. CONCLUSIONS: The results of current research highlight the seriousness of the drug-resistance problem and the need to prevent further increases and spread of antibiotic-resistance to reduce treatment failure. Moreover, relatively similar characteristics of the E. coli isolates of dogs and their owners can show the risk of sharing resistant bacteria and/or resistance elements between them.


Assuntos
Doenças do Cão , Infecções por Escherichia coli , Animais , Antibacterianos/farmacologia , Bactérias , Cães , Escherichia coli/genética , Infecções por Escherichia coli/tratamento farmacológico , Infecções por Escherichia coli/epidemiologia , Infecções por Escherichia coli/veterinária , Integrons/genética
9.
Risk Anal ; 42(5): 1056-1072, 2022 05.
Artigo em Inglês | MEDLINE | ID: mdl-34490646

RESUMO

While there is a large literature on how individual homeowners perceive location-specific wildfire hazard, there is only one study specific to U.S. family forest owners. Using respondents from the United States Department of Agriculture (USDA) Forest Service's National Woodland Owner Survey of family forest ownerships in the United States, we investigate the relationship between landowners' wildfire concerns and biophysical wildfire hazard across the contiguous United States. As a measure of long-term conditions for high intensity wildfire, we use the USDA Forest Service's Wildfire Hazard Potential Index as our key variable of interest. We test six ways of aggregating Wildfire Hazard Potential using 1-, 10-, and 100-mile (1.6, 16, and 160 km) radii buffers with linear and logistic specifications for hazard potential. Results show the log of Wildfire Hazard Potential is the best fit for modeling wildfire hazard concerns. Respondents in the western United States have a higher baseline level of concern but are not necessarily more sensitive to the hazard spectrum compared to respondents in the north. Respondents in the southern United States have a lower sensitivity to the hazard spectrum compared to respondents in the north and west. Using predicted probabilities at the means, we also compute regional prevalence ratios to compare the impact of biophysical wildfire hazard to the relative impact of other important variables. Various property and owner characteristics not related to biophysical hazard potential, such as emotion, receiving information about wildfire, and the presence of a house on the property are determinants of wildfire concern in some, but not all regions of the United States.


Assuntos
Incêndios , Incêndios Florestais , Acidentes , Estados Unidos
10.
Small Bus Econ (Dordr) ; 59(4): 1351-1380, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-38624944

RESUMO

In light of the unprecedented global crisis caused by the COVID-19 pandemic, resilient businesses are those more likely to make the transition to the post-COVID era. Our study draws on the concept of psychological resilience and focusses on individual owner-managers to the end of examining business resilience in the context of the COVID-19 pandemic. We conduct a longitudinal qualitative study, collecting data from 35 small business owner-managers between April and December 2020. Our findings-which provide insights into the micro-underpinnings of the resilience exhibited by small business in response to the COVID-19 pandemic-illustrate the responses and resilient qualities of owner-managers at both the personal and leadership levels, which facilitate resilient actions at the small business level. By drawing on a psychological perspective, our study provides a novel conceptualization of small business resilience at the person-role-organization nexus.

11.
Aust Occup Ther J ; 69(5): 585-598, 2022 10.
Artigo em Inglês | MEDLINE | ID: mdl-35640882

RESUMO

INTRODUCTION: The benefits of completing household chores appear to transfer beyond managing day-to-day living. It is possible that chore engagement may improve executive functions, as engagement in chores require individuals to plan, self-regulate, switch between tasks, and remember instructions. To date, little research has been conducted on household chores and executive functions in children, for whom these skills are still developing. METHODS: Parents and guardians (N = 207) of children aged 5-13 years (M = 9.38, SD = 2.15) were asked to complete parent-report questionnaires on their child's engagement in household chores and their child's executive functioning. RESULTS: Results of the regression model indicated that engagement in self-care chores (e.g., making self a meal) and family-care chores (e.g., making someone else a meal) significantly predicted working memory and inhibition, after controlling for the influence of age, gender, and presence or absence of a disability. For families with a pet, there was no significant relationship between engagement in pet-care chores and executive function skills. CONCLUSION: We strongly recommend that further research explore the relationship between chores and executive functions. It is possible that parents may be able to facilitate their child's executive function development through encouraging participation in chores, whereas chore-based interventions (e.g., cooking programmes) may also be used to target deficits in ability.


Assuntos
Função Executiva , Terapia Ocupacional , Atividades Cotidianas , Criança , Cognição , Humanos , Pais
12.
J Theor Biol ; 526: 110540, 2021 10 07.
Artigo em Inglês | MEDLINE | ID: mdl-33221278

RESUMO

The paper presents an attempt to integrate the classical evolutionary game theory based on replicator dynamics and the state-based approach of Houston and McNamara. In the new approach, individuals have different heritable strategies; however, individuals carrying the same strategy can differ in terms of state, role or the situation in which they act. Thus, the classical replicator dynamics is completed by the additional subsystem of differential equations describing the dynamics of transitions between different states. In effect, the interactions described by game structure, in addition to the demographic payoffs (constituted by births and deaths), can lead to the change in state of the competing individuals. Special cases of reversible and irreversible incremental stage-structured models, where the state changes can describeenergy accumulation, developmental steps or aging, are derived for discrete and continuous versions. The new approach is illustrated using the example of the Owner-Intruder game with explicit dynamics of the role changes. The new model presents a generalization of the demographic version of the Hawk-Dove game,with the difference being that the opponents in the game are drawn from two separate subpopulations consisting of Owners and Intruders. Here, the Intruders check random nest sites and play the Hawk-Dove game with the Owner if they are occupied. Meanwhile, the Owners produce newborns that become Intruders, since they must find a free nest site to reproduce. An interesting feedback mechanism is produced via the fluxes of individuals between the different subpopulations. In addition, the population growth suppression mechanism resulting from the fixation Bourgeois strategy is analyzed.


Assuntos
Evolução Biológica , Teoria dos Jogos , Humanos , Recém-Nascido , Modelos Teóricos , Dinâmica Populacional , Crescimento Demográfico
13.
BMC Vet Res ; 17(1): 53, 2021 Jan 28.
Artigo em Inglês | MEDLINE | ID: mdl-33509191

RESUMO

BACKGROUND: Cats, being obligate carnivores, have unique dietary requirements for nutrients most commonly found in dietary ingredients of animal origin. As such, feeding a diet devoid of animal-derived ingredients has been postulated as a possible cause of nutrient imbalances and adverse health outcomes. A small proportion of cat owners feed strictly plant-based diets to the cats in their care, yet the health and wellness of cats fed these diets has not been well documented. RESULTS: A total of 1325 questionnaires were complete enough for inclusion. The only exclusion criterion was failure to answer all questions. Most cats, 65% (667/1026), represented in the survey were fed a meat-based diet and 18.2% (187/1026) were fed a plant-based diet, with the rest fed either a combination of plant-based with meat-based (69/1026, 6.7%) or indeterminable (103/1026, 10%). Cat age ranged from 4 months to 23 years, with a median of 7 years, and was not associated with diet type. No differences in reported lifespan were detected between diet types. Fewer cats fed plant-based diets reported to have gastrointestinal and hepatic disorders. Cats fed plant-based diets were reported to have more ideal body condition scores than cats fed a meat-based diet. More owners of cats fed plant-based diets reported their cat to be in very good health. CONCLUSIONS: Cat owner perception of the health and wellness of cats does not appear to be adversely affected by being fed a plant-based diet. Contrary to expectations, owners perceived no body system or disorder to be at particular risk when feeding a plant-based diet to cats. This study collected information from cat owners and is subject to bias, as well as methodological limitations. Further research is warranted to determine if these results are replicable in a prospective investigation.


Assuntos
Gatos , Dieta Vegetariana/veterinária , Dieta/veterinária , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Ração Animal , Fenômenos Fisiológicos da Nutrição Animal , Animais , Canadá , Estudos Transversais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Inquéritos e Questionários , Estados Unidos , Adulto Jovem
14.
Vet Ophthalmol ; 24(4): 346-353, 2021 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-33955641

RESUMO

OBJECTIVE: To describe clinical and histopathologic pre-operative diagnoses as well as associated post-operative complications following orbital silicone implantation in dogs undergoing enucleation and evaluate owner satisfaction. ANIMALS STUDIED: One hundred and eighty-six dogs who underwent enucleation with orbital implant. PROCEDURES: Medical records from dogs that underwent enucleation with orbital implant performed at Virginia-Maryland Veterinary Teaching Hospital between 2007 and 2019 were reviewed. Owners were surveyed via telephone regarding client satisfaction. RESULTS: Enucleation followed by orbital implant placement occurred in 215 eyes of 186 dogs. The most common pre-operative diagnoses were glaucoma (68.8%), uveitis (17.7%), cataracts (15.8%), intraocular neoplasia (13.0%), and lens luxation (10.7%). The most common histopathologic diagnoses were retinal degeneration (46.5%), uveitis (39.5%), cataract (29.8%), retinal detachment (27.4%), and secondary glaucoma (26.5%). Fourteen eyes (6.5%) from ten dogs had post-operative complications reported including orbit cellulitis (n = 11), implant migration (n = 1), and implant extrusion (n = 1). Five of these dogs (50%) had concurrent diabetes mellitus. Median complication time from surgery was 41 days (range: 11-541 days). Ninety-five owner survey responses were completed with a median time of 6.3 years following surgery. Most owners, 85.3% (n = 81), were satisfied with the post-operative outcome. CONCLUSION: Enucleation with implantation of an orbital implant is a viable and safe method for irreversibly blind eyes. Diabetes mellitus may be a risk factor for the development of post-operative complications. Intraocular neoplasia was not associated with development of post-operative complications. Results of this study indicated high owner satisfaction rates for improving cosmetic appearance after enucleation in dogs.


Assuntos
Doenças do Cão/cirurgia , Oftalmopatias/veterinária , Enucleação Ocular/veterinária , Implantes Orbitários/veterinária , Animais , Cães , Oftalmopatias/cirurgia , Feminino , Masculino , Implantes Orbitários/efeitos adversos , Satisfação do Paciente , Complicações Pós-Operatórias/veterinária , Silicones , Técnicas de Sutura/veterinária
15.
J Anim Physiol Anim Nutr (Berl) ; 105 Suppl 2: 37-41, 2021 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-32056314

RESUMO

While teaching, the Institute of Animal Nutrition of the University of Zurich (IANZ) noticed that veterinary students, veterinarians and pet owners have significant difficulties in reading and understanding pet food labels (PFL). The authors hypothesized that if PFL are easy to read and understand, 90% of those dog owners (n = 43) polled at a dog exhibition are able to answer a questionnaire after reading an exemplary PFL modified from existing products. About 30.2% of the participants were able to compare the protein content of a canned diet versus a dry diet. About 34.9% were able to estimate and compare the carbohydrate content of two dry diets by reading the composition. About 32.6% identified which of the two dry diets was potentially a complete diet by reading the listed ingredients. The results show that a majority of the participants was overwhelmed with the task of reading and understanding the exemplary PFL. An improvement of public education on the basics of product labelling or additional simplified information on the labels might be helpful.


Assuntos
Fenômenos Fisiológicos da Nutrição Animal , Dieta , Ração Animal/análise , Animais , Dieta/veterinária , Cães , Inquéritos e Questionários , Suíça
16.
Resour Conserv Recycl ; 164: 105039, 2021 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-32929303

RESUMO

China's circular economy has made notable progress since the 21st century and shaped various industry segments. Among these, ship recycling has been particularly outstanding as it evolved exceptionally fast and assumed an internationally leading role. In this article, we present field survey findings on recycling standards and recovery capacities regarding the material flows at Chinese shipbreaking yards, which overall perform comparatively sustainable. However, recent policy and market developments have induced the sector's decline, which at present seems to threaten the very fundamentals of circular economic management for obsolete vessels in China. Given these limited prospects for traditional recycling approaches in the near future, the article proceeds to evaluate alternative circular economy management options for Chinese ship recycling facilities to manage end-of-life vessels. Based on quantifications of hidden potentials in ship supply, value and material contributions to the domestic circular economy, technical and market specific conditions for material recovery as well as other circular economy practices, we find that ship repair and refurbishment may offer the most promising alternative to recycling for Chinese shipbreaking yards.

17.
Theor Popul Biol ; 136: 31-40, 2020 12.
Artigo em Inglês | MEDLINE | ID: mdl-33248144

RESUMO

We consider a game theoretical model of kleptoparasitic interaction between two individuals, the Owner and the Intruder. The Owner is in possession of a resource and must decide whether to defend the resource against the Intruder or flee. If the Owner defends, the Intruder must decide whether to fight with the Owner or flee. The outcome of the fight depends on the hunger of the individuals, the hungrier the individual is, the more likely they are to win the fight. We consider three scenarios: (a) both individuals know their own and their opponent's hunger, (b) individuals only know their own hunger but not that of their opponent, and (c) individuals do not know their own nor the opponent's hunger levels. We determine Nash equilibrium strategies in each scenario. We conclude that Owner is generally willing to defend more often than the Intruder is willing to attack. Also, the Intruder's payoff is largest in the full information case; but the Owner may benefit in the no information or partial information cases when the cost of the fight is neither too large nor too small.


Assuntos
Comportamento Competitivo , Teoria dos Jogos , Modelos Teóricos , Animais , Conscientização , Fome
18.
Theor Popul Biol ; 134: 15-35, 2020 08.
Artigo em Inglês | MEDLINE | ID: mdl-32335070

RESUMO

Territorial behaviour is an important part of the lives of many animals. Once a territory has been acquired, an animal may spend its entire life on it, and may have to repeatedly defend it from conspecifics. Some species make great investments in the defence of a territory, and this defence can be costly, in terms of time, energy and risk of injury. Time costs in particular have rarely been explicitly factored into such models. In this paper we consider a model of territorial defence which includes both population dynamic and time delay elements, building upon recent advances in time constraint models. Populations may divide into two distinct types, where one type makes no effort to control territories. We shall call this type nomads, and the other type territorials. Here the territory owners must divide their time between patrolling and foraging, and this balance is their only strategic decision. We show how to find the evolutionarily stable patrolling strategy and the population composition of territorials and nomads, and consider some examples demonstrating key situations. We see that both time constraints and population density pressure are crucial to influencing behaviour. In particular we find cases with both territorial individuals and nomads where a mixed, either pure or both pure patrolling strategies are evolutionarily stable. In different conditions either nomads or territorials can be absent, and indeed for a significant range of parameter combinations the population can exhibit tristability, with three distinct ecologically stable population compositions: with both nomads and territorials, only nomads or only territorials.


Assuntos
Territorialidade , Animais , Densidade Demográfica , Dinâmica Populacional
19.
Anim Cogn ; 23(4): 711-719, 2020 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-32270351

RESUMO

Dogs are an ideal species to investigate phylogenetic and ontogenetic factors contributing to face recognition. Previous research has found that dogs can recognise their owner using visual information about the person's face, presented live. However, a thorough investigation of face processing mechanisms requires the use of graphical representations and it currently remains unclear whether dogs are able to spontaneously recognise human faces in photographs. To test this, pet dogs (N = 60) were briefly separated from their owners and, to achieve reunion, they needed to select the location indicated by a photograph of their owner's face, rather than that of an unfamiliar person concurrently presented. Photographs were taken under optimal and suboptimal (non-frontally oriented and unevenly illuminated faces) conditions. Results revealed that dogs approached their owner significantly above chance level when presented with photos taken under optimal conditions. Further analysis revealed no difference in the probability of choosing the owner between the optimal and suboptimal conditions. Dogs were more likely to choose the owner if they directed a higher percentage of looking time towards the owner's photograph compared to the stranger's one. In addition, the longer the total viewing time of both photos, the higher the probability that dogs chose the stranger. A main effect of dogs' sex was also obtained, with a higher probability of male dogs choosing the owner's photograph. This study provides direct evidence that dogs are able to recognise their owner's face from photographs. The results imply that motion and three-dimensional information is not necessary for recognition. The findings also support the ecological valence of such stimuli and increase the validity of previous investigations into dog cognition that used two-dimensional representations of faces. The effects of attention may reflect differences at the individual level in attraction towards novel faces or in the recruitment of different face processing mechanisms.


Assuntos
Atenção , Reconhecimento Psicológico , Animais , Cognição , Cães , Vínculo Humano-Animal , Humanos , Masculino , Filogenia
20.
BMC Vet Res ; 16(1): 443, 2020 Nov 13.
Artigo em Inglês | MEDLINE | ID: mdl-33187534

RESUMO

BACKGROUND: Idiopathic epilepsy is a common neurological condition in dogs. Previous research has focused on clinical aspects of seizure management in dogs with idiopathic epilepsy with little attention given to the emotional and logistical challenges for their owners. The current study aimed to explore the impacts of owning a dog with idiopathic epilepsy on owner quality of life and lifestyle, using qualitative methods. METHODS: Owners of dogs with idiopathic epilepsy living in England were recruited via social media and word of mouth, and then selected using purposive sampling to participate in face-to-face semi-structured interviews. Epilepsy management was explored through in-depth accounts of owner experiences and influencing factors. Interviews were recorded and transcribed verbatim and thematic analysis was used to construct key themes. RESULTS: Twenty-one interviews were completed. Almost all owners had made lifestyle changes in order to care for their dog, including substantial modifications to routines and, in some cases, employment. Many owners discussed a very emotionally close dog-owner bond, and described experiencing frequent feelings of fear, stress and uncertainty regarding their dog's health. Friends, family and colleagues did not always understand the magnitude of commitment required to care for a dog with idiopathic epilepsy. This, combined with a fear of leaving their dog unsupervised, had social implications in some instances and lead to increased use of the Internet and online groups for peer support. CONCLUSIONS: The commitment required to care for a dog with idiopathic epilepsy, and the lifestyle changes made by their owners, may be far greater than previously estimated. Further consideration of these factors by veterinary professionals and the friends and families of owners of dogs with idiopathic epilepsy could improve owner quality of life, and facilitate the provision of additional support.


Assuntos
Doenças do Cão/terapia , Epilepsia/veterinária , Vínculo Humano-Animal , Qualidade de Vida , Adulto , Animais , Cães , Emprego , Inglaterra , Epilepsia/terapia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade
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