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Galindo-González J. Avoiding novel, unwanted interactions among species to decrease risk of zoonoses. CONSERVATION BIOLOGY : THE JOURNAL OF THE SOCIETY FOR CONSERVATION BIOLOGY 2024; 38:e14232. [PMID: 38111356 DOI: 10.1111/cobi.14232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 10/15/2023] [Accepted: 10/16/2023] [Indexed: 12/20/2023]
Abstract
Circumstances that precipitate interactions among species that have never interacted during their evolutionary histories create ideal conditions for the generation of zoonoses. Zoonotic diseases have caused some of the most devastating epidemics in human history. Contact among species that come from different ecosystems or regions creates the risk of zoonoses. In certain situations, humans are generating and promoting conditions that contribute to the creation of infectious diseases and zoonoses. These conditions lead to interactions between wildlife species that have hitherto not interacted under normal circumstances. I call for recognition of the zoonotic potential that novel and unwanted interactions have; identification of these new interactions that are occurring among wild animals, domestic animals, and humans; and efforts to stop these kinds of interactions because they can give rise to zoonotic outbreaks. Live animal markets, the exotic pet trade, illegal wildlife trade, human use and consumption of wild animals, invasive non-native species, releasing of exotic pets, and human encroachment in natural areas are among the activities that cause the most interactions among wild species, domestic species, and humans. These activities should not occur and must be controlled efficiently to prevent future epidemic zoonoses. Society must develop a keen ability to identify these unnatural interactions and prevent them. Controlling these interactions and efficiently addressing their causal factors will benefit human health and, in some cases, lead to positive environmental, ethical, and socioeconomic outcomes. Until these actions are taken, humanity will face future zoonoses and zoonotic pandemic.
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Affiliation(s)
- Jorge Galindo-González
- Instituto de Biotecnología y Ecología Aplicada (INBIOTECA), Universidad Veracruzana, Xalapa, México
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2
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Ramírez Riveros D, González-Lagos C. Community Engagement and the Effectiveness of Free-Roaming Cat Control Techniques: A Systematic Review. Animals (Basel) 2024; 14:492. [PMID: 38338135 PMCID: PMC10854515 DOI: 10.3390/ani14030492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 01/20/2024] [Accepted: 01/30/2024] [Indexed: 02/12/2024] Open
Abstract
Although free-roaming and feral cat control techniques are often applied in human communities, community engagement is not always considered. A systematic literature review following an update of the Preferred Reporting Items for Systematic reviews and Meta-Analyses (PRISMA 2020) methodology was conducted to evaluate whether community engagement influences the effectiveness of control techniques, excluding culling, in managing cat populations. The degree of community engagement was estimated based on the number of roles reported during the application of the control technique, which included adoption, trapping, care, and/or education. Education followed by adoption was the determining factor in the decreasing cat populations over time. The limited evaluations of control technique effectiveness, narrow geographical scope, and our simple measure of engagement emphasize the need for more detailed studies. These studies should evaluate the effectiveness of control techniques, while considering community engagement more comprehensively.
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Affiliation(s)
- Daniela Ramírez Riveros
- Centro de Investigación en Recursos Naturales y Sustentabilidad (CIRENYS), Universidad Bernardo O’Higgins, Santiago 8370993, Chile
- Center of Applied Ecology and Sustainability (CAPES), Santiago 8331150, Chile;
| | - César González-Lagos
- Center of Applied Ecology and Sustainability (CAPES), Santiago 8331150, Chile;
- Departamento de Ciencias, Facultad de Artes Liberales, Universidad Adolfo Ibáñez, Santiago 8320000, Chile
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Sauvé CC, Berentsen AR, Llanos SF, Gilbert AT, Leighton PA. Home range overlap between small Indian mongooses and free roaming domestic dogs in Puerto Rico: implications for rabies management. Sci Rep 2023; 13:22944. [PMID: 38135706 PMCID: PMC10746706 DOI: 10.1038/s41598-023-50261-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Accepted: 12/18/2023] [Indexed: 12/24/2023] Open
Abstract
The small Indian mongoose (Urva auropunctata) is the primary terrestrial wildlife rabies reservoir on at least four Caribbean islands, including Puerto Rico. In Puerto Rico, mongooses represent a risk to public health, based on direct human exposure and indirectly through the transmission of rabies virus to domestic animals. To date, the fundamental ecological relationships of space use among mongooses and between mongooses and domestic animals remain poorly understood. This study is the first to report mongoose home range estimates based on GPS telemetry, as well as concurrent space use among mongooses and free roaming domestic dogs (FRDD; Canis lupus familiaris). Mean (± SE) home range estimates from 19 mongooses in this study (145 ± 21 ha and 60 ± 14 ha for males and females, respectively) were greater than those reported in prior radiotelemetry studies in Puerto Rico. At the scale of their home range, mongooses preferentially used dry forest and shrubland areas, but tended to avoid brackish water vegetation, salt marshes, barren lands and developed areas. Home ranges from five FRDDs were highly variable in size (range 13-285 ha) and may be influenced by availability of reliable anthropogenic resources. Mongooses displayed high home range overlap (general overlap index, GOI = 82%). Home range overlap among mongooses and FRDDs was intermediate (GOI = 50%) and greater than home range overlap by FRDDs (GOI = 10%). Our results provide evidence that space use by both species presents opportunities for interspecific interaction and contact and suggests that human provisioning of dogs may play a role in limiting interactions between stray dogs and mongooses.
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Affiliation(s)
- Caroline C Sauvé
- Faculté de Médecine Vétérinaire, Université de Montréal, 3200 Rue Sicotte, Saint-Hyacinthe, QC, J2S 2M2, Canada.
| | - Are R Berentsen
- United States Department of Agriculture, Animal and Plant Health Inspection Service, Wildlife Services, National Wildlife Research Center, 4101 LaPorte Avenue, Fort Collins, CO, 80521, USA
| | - Steven F Llanos
- United States Department of Agriculture, Animal and Plant Health Inspection Service, Wildlife Services, National Wildlife Research Center, PO Box 38, Lajas, PR, 00667, USA
| | - Amy T Gilbert
- United States Department of Agriculture, Animal and Plant Health Inspection Service, Wildlife Services, National Wildlife Research Center, 4101 LaPorte Avenue, Fort Collins, CO, 80521, USA
| | - Patrick A Leighton
- Faculté de Médecine Vétérinaire, Université de Montréal, 3200 Rue Sicotte, Saint-Hyacinthe, QC, J2S 2M2, Canada
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McDonald J, Finka L, Foreman-Worsley R, Skillings E, Hodgson D. Cat: Empirical modelling of Felis catus population dynamics in the UK. PLoS One 2023; 18:e0287841. [PMID: 37437091 DOI: 10.1371/journal.pone.0287841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 06/13/2023] [Indexed: 07/14/2023] Open
Abstract
Domestic cats are popular companion animals, however not all live in human homes and many cats live within shelters or as free-roaming, unowned- feral or stray cats. Cats can transition between these subpopulations, but the influence of this connectivity on overall population dynamics, and the effectiveness of management interventions, remain poorly understood. We developed a UK-focused multistate Matrix Population Model (MPM), combining multiple life history parameters into an integrated model of cat demography and population dynamics. The model characterises cats according to their age, subpopulation and reproductive status, resulting in a 28-state model. We account for density-dependence, seasonality and uncertainty in our modelled projections. Through simulations, we examine the model by testing the effect of different female owned-cat neutering scenarios over a 10-year projection timespan. We also use the model to identify the vital rates to which total population growth is most sensitive. The current model framework demonstrates that increased prevalence of neutering within the owned cat subpopulation influences the population dynamics of all subpopulations. Further simulations find that neutering owned cats younger is sufficient to reduce overall population growth rate, regardless of the overall neutering prevalence. Population growth rate is most influenced by owned cat survival and fecundity. Owned cats, which made up the majority of our modelled population, have the most influence on overall population dynamics, followed by stray, feral and then shelter cats. Due to the importance of owned-cat parameters within the current model framework, we find cat population dynamics are most sensitive to shifts in owned cat husbandry. Our results provide a first evaluation of the demography of the domestic cat population in the UK and provide the first structured population model of its kind, thus contributing to a wider understanding of the importance of modelling connectivity between subpopulations. Through example scenarios we highlight the importance of studying domestic cat populations in their entirety to better understand factors influencing their dynamics and to guide management planning. The model provides a theoretical framework for further development, tailoring to specific geographies and experimental investigation of management interventions.
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Affiliation(s)
- Jenni McDonald
- Feline Welfare Directorate, Cats Protection, National Cat Centre, Haywards Heath, United Kingdom
- Bristol Veterinary School, University of Bristol, Bristol, United Kingdom
| | - Lauren Finka
- Feline Welfare Directorate, Cats Protection, National Cat Centre, Haywards Heath, United Kingdom
| | - Rae Foreman-Worsley
- Feline Welfare Directorate, Cats Protection, National Cat Centre, Haywards Heath, United Kingdom
| | - Elizabeth Skillings
- Feline Welfare Directorate, Cats Protection, National Cat Centre, Haywards Heath, United Kingdom
| | - Dave Hodgson
- Centre for Ecology and Conservation, University of Exeter, Cornwall, United Kingdom
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Luzardo OP, Zaldívar-Laguía JE, Zumbado M, Travieso-Aja MDM. The Role of Veterinarians in Managing Community Cats: A Contextualized, Comprehensive Approach for Biodiversity, Public Health, and Animal Welfare. Animals (Basel) 2023; 13:ani13101586. [PMID: 37238021 DOI: 10.3390/ani13101586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 05/07/2023] [Accepted: 05/08/2023] [Indexed: 05/28/2023] Open
Abstract
Homeless cats are a major problem in Europe, with hundreds of thousands abandoned every year. While many die, others can adapt to a lifestyle of roaming freely and establish community cat populations that tend to cluster together in groups. These groups of cats are typically found in urban areas that offer food and shelter to the cats. Animal welfare organizations often care for these cats, providing them with food, shelter, and medical attention. Despite this, conflicts can arise due to the presence of free-roaming cats, with some individuals advocating for drastic measures such as trapping and killing the cats to reduce their populations. However, it is essential to note that such methods are frequently illegal, inhumane, and ultimately ineffective in most situations. A thorough assessment of the impact of cats on a particular natural area requires a comprehensive cat census, a detailed study of the species being preyed upon, and an investigation into the prevalence of zoonotic or epizootic diseases. Moreover, veterinary experts assert that the public health risks associated with cats are often overstated. This article aims to provide a nuanced perspective on the impact of cats on biodiversity in natural areas, while also discussing their role in transmitting the main zoonotic diseases identified in European countries in recent years, with a particular focus on Spain. Effective cat control programs should focus on non-lethal methods such as trap-neuter-return (TNR) and adoption. TNR has proven to be the most effective and humane method of controlling the free-roaming cat population, but its effectiveness is influenced by several factors, including adoption programs and public education on responsible pet ownership. According to Spanish veterinarians, sustainable and science-based solutions such as TNR programs are the best way to achieve population control of free-roaming cats. The veterinary profession should raise awareness regarding sterilization, vaccination, and identification of cats and the consequences of abandonment. They oppose lethal control and removal of cats from the environment, which are ineffective and unethical methods. To promote animal welfare, veterinary professionals must collaborate with public administrations to implement long-term, sustainable solutions to the problem of cat overpopulation. Greater social awareness regarding the importance of sterilization and identification to prevent abandonment and reduce the number of free-roaming cats is also needed. Despite the challenges presented by homeless cat populations in Spain and the rest of Europe, there are many reasons for optimism. Animal welfare organizations and veterinary professionals are actively collaborating to develop humane and effective solutions to manage community cats, including programs such as TNR and adoption. Furthermore, these initiatives are gaining momentum and support from emerging laws and regulations, such as the recent Spanish animal welfare law. Through these efforts, we can reduce the number of free-roaming cats and improve their quality of life.
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Affiliation(s)
- Octavio P Luzardo
- Biomedical and Health Research Institute (IUIBS), University of Las Palmas de Gran Canaria, 35016 Las Palmas de Gran Canaria, Spain
- Faculty of Veterinary Medicine, University of Las Palmas de Gran Canaria, 35400 Arucas, Spain
- Abolitionist Association of Veterinarians against Bullfighting and Animal Abuse (AVATMA), 28045 Madrid, Spain
| | | | - Manuel Zumbado
- Biomedical and Health Research Institute (IUIBS), University of Las Palmas de Gran Canaria, 35016 Las Palmas de Gran Canaria, Spain
- Faculty of Veterinary Medicine, University of Las Palmas de Gran Canaria, 35400 Arucas, Spain
- Abolitionist Association of Veterinarians against Bullfighting and Animal Abuse (AVATMA), 28045 Madrid, Spain
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de Melo SN, da Silva ES, Ribeiro RAN, Soares PHA, Cunha AKR, de Souza Gonçalves CM, Melo FDS, Horta MAP, Teixeira-Neto RG, Belo VS. The Influence of Community Feeders and Commercial Food Outlets on the Spatial Distribution of Free-Roaming Dogs-A Photographic Capture and Recapture Study. Animals (Basel) 2023; 13:ani13050824. [PMID: 36899681 PMCID: PMC10000244 DOI: 10.3390/ani13050824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Revised: 02/16/2023] [Accepted: 02/18/2023] [Indexed: 03/12/2023] Open
Abstract
Understanding the distribution of dogs in the environment is relevant for establishing human and animal health actions. In the present study, we analyzed the influence of community feeders and commercial food outlets on the spatial distribution of free-roaming dogs in an urban area of a municipality in Southeast Brazil. The dogs were identified via photographic capture and recapture performed over five sampling efforts. The spatial densities of dogs were determined using the Kernel method. Spatial correlations between the distribution of free-roaming dogs and the locations of community feeders and commercial food outlets were analyzed using the K function. During the study, 1207 captures/recaptures were performed encompassing 554 dogs, the majority (62.6%) of which were males. Agglomerations of male and female dogs were observed in the areas where food was present. Positive spatial autocorrelations were detected between the distribution of dogs and food sources. The median distances between dogs and community feeders or commercial food outlets were 1.2 and 1.4 km, respectively, and the difference between these two was statistically significant. The presence of community feeders and food outlets demonstrates the influence of human activity, on the spatial distribution of free-roaming dogs. These results will be useful for developing strategies aimed at the improvement of animal welfare and the prevention of zoonoses.
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Affiliation(s)
- Saulo Nascimento de Melo
- Campus Centro-Oeste Dona Lindu, Universidade Federal de São João del-Rei, Divinópolis 35501-296, MG, Brazil
| | - Eduardo Sérgio da Silva
- Campus Centro-Oeste Dona Lindu, Universidade Federal de São João del-Rei, Divinópolis 35501-296, MG, Brazil
| | | | | | | | | | | | | | | | - Vinícius Silva Belo
- Campus Centro-Oeste Dona Lindu, Universidade Federal de São João del-Rei, Divinópolis 35501-296, MG, Brazil
- Correspondence:
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Effects of the COVID-19 pandemic on the behavior and physical health of dogs in Rio de Janeiro state: Reflections on the quality of life of dogs and their owners. J Vet Behav 2023; 60:37-43. [PMID: 36531836 PMCID: PMC9741960 DOI: 10.1016/j.jveb.2022.12.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 12/04/2022] [Accepted: 12/05/2022] [Indexed: 12/14/2022]
Abstract
The COVID-19 pandemic changed the routines of people, consequently changing the daily lives of their pets. Behavioral and emotional changes caused by the stress resulting from restrictions of social isolation and their consequences in the human-animal relationship have been discussed. However, there are still no studies that identify the factors that affect behavior and which are the most susceptible groups. The purpose of this study is to identify behavioral and emotional changes on dogs during the COVID-19 pandemic and their effects on the quality of life of animals and their owners. The methodology used was online questionnaires, which were posted on social networks aimed to dog owners in Rio de Janeiro state, Brazil. The results showed that age, sex, dog size, type of home, and restrictions imposed differently affected the type of behavioral change. However, the most frequent type of change was the worsening of previous conditions. Neutered behaviors directly interfered in the lives of owners and their pets, as owners managed the situation and sought information without guidance from a veterinarian, with the possibly consequence of worsening the situation in the future. Veterinarians should actively investigate behavioral changes that have occurred through anamnesis to avoid abandonment and instability in the human-animal relationship.
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Menuge F, Pageat P, Arroub S, Teruel E, Marcet-Rius M, Monneret P, Cozzi A. Can a semiochemical deter cats from trash cans? J Feline Med Surg 2023; 25:1098612X221140855. [PMID: 36638146 PMCID: PMC10812039 DOI: 10.1177/1098612x221140855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
OBJECTIVES The interaction between free-roaming cats and humans can lead to cohabitation issues. One such issue is the nuisance caused when cats scavenge and scatter garbage, particularly in cities. This study aimed to investigate the impact of a semiochemical on cat avoidance behaviour. METHODS Five cats were included in the study, in a crossover design. A 10 min choice test involving two garbage cans, one sprayed with the semiochemical and the other sprayed with a control solution, was performed in a controlled setting. The parameters observed were exploration, proximity, latency to approach and first choice. RESULTS Cats spent less time exploring (general linear mixed model [GLMM]; degrees of freedom [DF] = 1; F = 14.23; P <0.0001) and in proximity to the treated garbage can (GLMM; DF = 1; F = 13.25; P <0.0001). Additionally, although there was no significant difference in the first choice (P = 0.5300), the latency to approach tended to be longer for the treated garbage can (frailty model; DF = 1; χ2 = 3.49; P = 0.0610). CONCLUSIONS AND RELEVANCE The present study demonstrated that this semiochemical can deter cats from trash cans in a controlled setting. Further studies are needed to explore the efficiency of the semiochemical deterrent in a real-world setting to improve human-cat cohabitation.
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Affiliation(s)
- Fanny Menuge
- Animal Behaviour and Welfare Department, Research Institute in Semiochemistry and Applied Ethology (IRSEA), Quartier Salignan, Apt, France
| | - Patrick Pageat
- Research and Education Board, IRSEA, Quartier Salignan, Apt, France
| | - Sana Arroub
- Data Management and Statistics Service, IRSEA, Quartier Salignan, Apt, France
| | - Eva Teruel
- Data Management and Statistics Service, IRSEA, Quartier Salignan, Apt, France
| | - Míriam Marcet-Rius
- Animal Behaviour and Welfare Department, Research Institute in Semiochemistry and Applied Ethology (IRSEA), Quartier Salignan, Apt, France
| | - Philippe Monneret
- Animal Experimentation Service, IRSEA, Quartier Salignan, Apt, France
| | - Alessandro Cozzi
- Research and Education Board, IRSEA, Quartier Salignan, Apt, France
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Animal Control and Field Services Officers' Perspectives on Community Engagement: A Qualitative Phenomenology Study. Animals (Basel) 2022; 13:ani13010068. [PMID: 36611678 PMCID: PMC9817778 DOI: 10.3390/ani13010068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 12/19/2022] [Accepted: 12/22/2022] [Indexed: 12/28/2022] Open
Abstract
Very little is known about the prevalence, scope, and methods of community engagement employed by animal control and field services officers to address the issue of animal cruelty and neglect. This study used a phenomenological approach to understand how officers defined community engagement. The researchers conducted semi-structured interviews with twenty-nine animal control and field services officers. The definitions of community engagement varied greatly across this sample of U.S. officers. However, most officers agreed that strategies such as relationship-building, providing assistance or information, and allowing time for compliance were among the most effective community engagement strategies. In addition, several barriers to incorporating community engagement strategies in the work of animal control professionals were identified. Future research and policymaking should seek to establish a consistent definition of community engagement in animal control and field services that can then be optimized for specific communities through rigorous evaluation.
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Cunha Silva L, Friker B, Warembourg C, Kanankege K, Wera E, Berger-González M, Alvarez D, Dürr S. Habitat selection by free-roaming domestic dogs in rabies endemic countries in rural and urban settings. Sci Rep 2022; 12:20928. [PMID: 36463285 PMCID: PMC9719531 DOI: 10.1038/s41598-022-25038-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Accepted: 11/23/2022] [Indexed: 12/07/2022] Open
Abstract
Domestic dogs can affect human health through bites and pathogen transmission, particularly in resource-poor countries where dogs, including owned ones, predominantly roam freely. Habitat and resource selection analysis methods are commonplace in wildlife studies but have not been used to investigate the environmental resource use of free-roaming domestic dogs (FRDD). The present study implements GPS devices to investigate habitat selection by FRDD from an urban site and a rural site in Indonesia, and one urban and two rural sites in Guatemala (N = 321 dogs). Spatial mixed effects logistic regression models, accounting for heterogeneous distribution of the resources, showed that patterns of habitat selection by FRDD were similar across study sites. The most preferred resources were anthropogenic, being buildings and roads, which implies selection for human proximity. Vegetation and open fields were less preferred and steep terrain was avoided, indicating that FRDD were synanthropic and that their space patterns likely optimised energy use. Results presented here provide novel data on FRDD habitat selection patterns, while improving our understanding of dog roaming behaviour. These findings provide insights into possible high-risk locations for pathogen transmission for diseases such as rabies, and can assist management authorities in the planning and deployment of efficient disease control campaigns, including oral vaccination.
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Affiliation(s)
- Laura Cunha Silva
- grid.5734.50000 0001 0726 5157Veterinary Public Health Institute, Vetsuisse Faculty, University of Bern, Bern, Switzerland ,grid.5734.50000 0001 0726 5157Graduate School for Cellular and Biomedical Sciences, University of Bern, Bern, Switzerland
| | - Brian Friker
- grid.5734.50000 0001 0726 5157Veterinary Public Health Institute, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | - Charlotte Warembourg
- grid.5734.50000 0001 0726 5157Veterinary Public Health Institute, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | - Kaushi Kanankege
- grid.17635.360000000419368657College of Veterinary Medicine, University of Minnesota, St Paul, MN USA
| | - Ewaldus Wera
- Kupang State Agricultural Polytechnic (Politeknik Pertanian Negeri Kupang), West Timor, Indonesia
| | - Monica Berger-González
- grid.8269.50000 0000 8529 4976Universidad del Valle de Guatemala, Guatemala City, Guatemala ,grid.416786.a0000 0004 0587 0574Swiss Tropical and Public Health Institute, Basel, Switzerland
| | - Danilo Alvarez
- grid.8269.50000 0000 8529 4976Universidad del Valle de Guatemala, Guatemala City, Guatemala
| | - Salome Dürr
- grid.5734.50000 0001 0726 5157Veterinary Public Health Institute, Vetsuisse Faculty, University of Bern, Bern, Switzerland
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Tiwari HK, Gogoi-Tiwari J, Robertson ID. Eliminating dog-mediated rabies: challenges and strategies. ANIMAL DISEASES 2021. [DOI: 10.1186/s44149-021-00023-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
AbstractRabies is an acute encephalitis caused by a lyssavirus. It is primarily transmitted through bites of infected dogs which results in the worldwide death of an estimated 59000 humans every year. The disease is preventable through the application of post-exposure prophylaxis (PEP) and its elimination has been demonstrated in many countries by applying multiple interventions simultaneously. Nonetheless, rabies is still widespread in many developing countries, primarily due to the poor implementation of intervention strategies that include inadequate dog-bite wound management practices, unavailability/unaffordability of PEP by the communities, failure to control the disease in free-roaming dogs and wildlife, improper dog population management, weak surveillance and diagnostic facilities and a lack of a One Health approach to the disease. In this review, strategies to control dog-mediated rabies through a One Health approach were discussed. We recommend applying multiple interventions against the disease by involving all the concerned stakeholders in selected urban and rural areas of the countries where rabies is endemic. An empirical demonstration of disease freedom in the selected areas through a One Health approach is needed to convince policymakers to invest in rabies prevention and control on the national level. This multifaceted One Health control model will enhance the likelihood of achieving the goal of global rabies eradication by 2030.
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12
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Jivago JLPR, Brito JLM, Capistrano G, Vinícius-Araújo M, Lima Verde E, Bakuzis AF, Souza PEN, Azevedo RB, Lucci CM. New Prospects in Neutering Male Animals Using Magnetic Nanoparticle Hyperthermia. Pharmaceutics 2021; 13:pharmaceutics13091465. [PMID: 34575541 PMCID: PMC8467495 DOI: 10.3390/pharmaceutics13091465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 09/03/2021] [Accepted: 09/06/2021] [Indexed: 11/16/2022] Open
Abstract
Controlling populations of free-roaming dogs and cats poses a huge challenge worldwide. Non-surgical neutering strategies for male animals have been long pursued, but the implementation of the procedures developed has remained limited to date. As submitting the testes to high temperatures impairs spermatogenesis, the present study investigated localized application of magnetic nanoparticle hyperthermia (MNH) to the testicles as a potential non-surgical sterilization method for animals. An intratesticular injection of a magnetic fluid composed of manganese-ferrite nanoparticles functionalized with citrate was administered followed by testicle exposure to an alternate magnetic field to generate localized heat. Testicular MNH was highly effective, causing progressive seminiferous tubule degeneration followed by substitution of the parenchyma with stromal tissue and gonadal atrophy, suggesting an irreversible process with few side effects to general animal health.
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Affiliation(s)
- José Luiz P. R. Jivago
- Laboratory of Animal Reproduction, Department of Physiological Sciences, Institute of Biological Sciences, Campus Universitário Darcy Ribeiro, Brasilia 70910-900, DF, Brazil; (J.L.P.R.J.); (J.L.M.B.)
| | - Juliana Lis Mendes Brito
- Laboratory of Animal Reproduction, Department of Physiological Sciences, Institute of Biological Sciences, Campus Universitário Darcy Ribeiro, Brasilia 70910-900, DF, Brazil; (J.L.P.R.J.); (J.L.M.B.)
| | - Gustavo Capistrano
- Institute of Physics and CNanoMed, Federal University of Goiás, Goiania 74884-092, GO, Brazil; (G.C.); (M.V.-A.); (A.F.B.)
| | - Marcus Vinícius-Araújo
- Institute of Physics and CNanoMed, Federal University of Goiás, Goiania 74884-092, GO, Brazil; (G.C.); (M.V.-A.); (A.F.B.)
| | - Ediron Lima Verde
- Instituto de Ciências Exatas e da Terra, Universidade Federal de Mato Grosso, Pontal do Araguaia 78060-900, MT, Brazil;
| | - Andris Figueiroa Bakuzis
- Institute of Physics and CNanoMed, Federal University of Goiás, Goiania 74884-092, GO, Brazil; (G.C.); (M.V.-A.); (A.F.B.)
| | - Paulo E. N. Souza
- Laboratory of Electron Paramagnetic Resonance, Institute of Physics, University of Brasilia, Brasilia 70910-900, DF, Brazil;
| | - Ricardo Bentes Azevedo
- Department of Genetics and Morphology, Institute of Biological Sciences, Campus Universitário Darcy Ribeiro, Brasilia 70910-900, DF, Brazil;
| | - Carolina Madeira Lucci
- Laboratory of Animal Reproduction, Department of Physiological Sciences, Institute of Biological Sciences, Campus Universitário Darcy Ribeiro, Brasilia 70910-900, DF, Brazil; (J.L.P.R.J.); (J.L.M.B.)
- Correspondence:
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Mota-Rojas D, Calderón-Maldonado N, Lezama-García K, Sepiurka L, Maria Garcia RDC. Abandonment of dogs in Latin America: Strategies and ideas. Vet World 2021; 14:2371-2379. [PMID: 34840456 PMCID: PMC8613775 DOI: 10.14202/vetworld.2021.2371-2379] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Accepted: 08/02/2021] [Indexed: 02/06/2023] Open
Abstract
In this article, we gathered information from postgraduate theses and scientific articles published in several databases using inclusion criteria that had been made in Latin America, in countries with similar economic conditions, and also in the USA to present a point of comparison. The objective of this review is to broaden the readers' understanding of the causes of the increasing numbers of stray dogs and the reasons why people abandon pets in the streets, specifically in Latin America. It also discusses adoption and responsible ownership, identifies what failed in promoting positive human-dog interaction, and suggests strategies to address this problem. It concludes that adoption alone is not an effective solution but that it is necessary to offer education and awareness programs for owners, organize sterilization campaigns, and develop and apply - with the corresponding authorities - measures to ensure animal welfare that will provide benefits for society and improve animal quality of life. The role of veterinarians is fundamental in education and in disseminating the necessary information to orient people before they acquire a pet and prevent animal abandonment to resolve this problem.
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Affiliation(s)
- Daniel Mota-Rojas
- Neurophysiology, Behavior, and Animal Welfare Assessment, DPAA, Universidad Autónoma Metropolitana, Xochimilco Campus, 04960, Mexico City, Mexico
| | | | - Karina Lezama-García
- Neurophysiology, Behavior, and Animal Welfare Assessment, DPAA, Universidad Autónoma Metropolitana, Xochimilco Campus, 04960, Mexico City, Mexico
| | - Leonardo Sepiurka
- Specialist in Canine and Feline Clinic of the College of Veterinarians of the Province of Buenos Aires. Small Animal Traumatology Specialist Professional Council CABA, Argentina
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14
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Wilson-Aggarwal JK, Goodwin CED, Moundai T, Sidouin MK, Swan GJF, Léchenne M, McDonald RA. Spatial and temporal dynamics of space use by free-ranging domestic dogs Canis familiaris in rural Africa. ECOLOGICAL APPLICATIONS : A PUBLICATION OF THE ECOLOGICAL SOCIETY OF AMERICA 2021; 31:e02328. [PMID: 33742486 DOI: 10.1002/eap.2328] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 09/24/2020] [Accepted: 11/13/2020] [Indexed: 06/12/2023]
Abstract
Variation in the spatial ecology of animals influences the transmission of infections and so understanding host behavior can improve the control of diseases. Despite the global distribution of free-ranging domestic dogs Canis familiaris and their role as reservoirs for zoonotic diseases, little is known about the dynamics of their space use. We deployed GPS loggers on owned but free-ranging dogs from six villages in rural Chad, and tracked the movements of 174 individuals in the dry season and 151 in the wet season. We calculated 95% and core home ranges using auto-correlated kernel density estimates (AKDE95 and AKDEcore ), determined the degree to which their movements were predictable, and identified correlates of movement patterns. The median AKDE95 range in the dry season was 0.54 km2 and in the wet season was 0.31 km2 , while the median AKDEcore range in the dry season was 0.08 km2 and in the wet season was 0.04 km2 . Seasonal variation was, in part, related to owner activities; dogs from hunting households had ranges that were five times larger in the dry season. At least 70% of individuals were more predictably "at home" (<50 m from the household) throughout the day in the dry season, 80% of dogs demonstrated periodicity in activity levels (speed), and just over half the dogs exhibited periodicity in location (repeated space use). In the wet season, dogs mostly exhibited 24-h cycles in activity and location, with peaks at midday. In the dry season, dogs exhibited both 12- and 24-h cycles, with either a single peak at midday, or one peak between 06:00 and 12:00 and a second between 18:00 and 22:00. Strategies to control canine-mediated zoonoses can be improved by tailoring operations to the local spatial ecology of free-ranging dogs. Interventions using a door-to-door strategy in rural Chad would best conduct operations during the dry season, when access to dogs around their household more reliably exceeds 70% throughout the day. Given the importance of use in hunting for explaining variation in dog space-use, targeting approaches to disease control at the household level on the basis of owner activities offers potential to improve access to dogs.
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Affiliation(s)
- Jared K Wilson-Aggarwal
- Environment and Sustainability Institute, University of Exeter, Penryn, TR10 9FE, Cornwall, United Kingdom
| | - Cecily E D Goodwin
- Environment and Sustainability Institute, University of Exeter, Penryn, TR10 9FE, Cornwall, United Kingdom
- UK Centre for Ecology and Hydrology, Wallingford, Oxfordshire, OX10 8BB, United Kingdom
| | | | - Metinou K Sidouin
- Environment and Sustainability Institute, University of Exeter, Penryn, TR10 9FE, Cornwall, United Kingdom
| | - George J F Swan
- Environment and Sustainability Institute, University of Exeter, Penryn, TR10 9FE, Cornwall, United Kingdom
| | - Monique Léchenne
- Environment and Sustainability Institute, University of Exeter, Penryn, TR10 9FE, Cornwall, United Kingdom
| | - Robbie A McDonald
- Environment and Sustainability Institute, University of Exeter, Penryn, TR10 9FE, Cornwall, United Kingdom
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15
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Muinde P, Bettridge JM, Sousa FM, Dürr S, Dohoo IR, Berezowski J, Mutwiri T, Odinga CO, Fèvre EM, Falzon LC. Who let the dogs out? Exploring the spatial ecology of free-roaming domestic dogs in western Kenya. Ecol Evol 2021; 11:4218-4231. [PMID: 33976805 PMCID: PMC8093722 DOI: 10.1002/ece3.7317] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 01/22/2021] [Accepted: 01/26/2021] [Indexed: 11/23/2022] Open
Abstract
The spatial ecology of free-roaming dogs determines their role in the transmission of zoonoses. This study describes the geographic range of and identifies sites frequently visited by free-roaming domestic dogs in western Kenya. Eight sites in Busia county, western Kenya, were selected. At each site, ten dog-keeping households were recruited, a questionnaire was administered, and a GPS logger was fixed around the neck of one dog in each household. Loggers were programmed to capture the dog's position every minute, for five consecutive days. Individual summaries of GPS recordings were produced, and the daily distance traveled was calculated. 50% and 95% utilization distribution isopleths were produced, and the area within these isopleths was extracted to estimate the size of the core and extended Home Ranges (HRs), respectively. Linear regression analyses were performed to identify factors associated with the movement parameters. The centroid points of the 10, 50, and 90% isopleths were reproduced, and the corresponding sites identified on the ground. Seventy-three dogs were included in the final analyses. The median daily distance traveled was 13.5km, while the median core and extended HRs were 0.4 and 9.3 ha, respectively. Older dogs had a larger extended HR and traveled more daily, while the effect of sex on dog movement depended on their neutering status. Dogs spent most of their time at their household; other frequently visited sites included other household compounds, fields, and rubbish dumps. One of the centroids corresponded to a field located across the international Kenya-Uganda border, emphasizing the fluidity across the border in this ecosystem. Multiple dogs visited the same location, highlighting the heterogeneous contact networks between dogs, and between dogs and people. The field data presented are of value both in understanding domestic dog ecology and resource utilization, and in contextualizing infectious and parasitic disease transmission models.
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Affiliation(s)
- Patrick Muinde
- International Livestock Research InstituteNairobiKenya
- Present address:
World Animal ProtectionNairobiKenya
| | - Judy M. Bettridge
- International Livestock Research InstituteNairobiKenya
- Institute of Infection, Veterinary, and Ecological SciencesUniversity of LiverpoolLiverpoolUK
- Present address:
Natural Resources InstituteUniversity of GreenwichChatham MaritimeUK
| | - Filipe M. Sousa
- Veterinary Public Health InstituteUniversity of BernBernSwitzerland
| | - Salome Dürr
- Veterinary Public Health InstituteUniversity of BernBernSwitzerland
| | - Ian R. Dohoo
- Atlantic Veterinary CollegeUniversity of Prince Edward IslandCharlottetownCanada
| | - John Berezowski
- Veterinary Public Health InstituteUniversity of BernBernSwitzerland
| | - Titus Mutwiri
- International Livestock Research InstituteNairobiKenya
- Jomo Kenyatta University of Agriculture and TechnologyNairobiKenya
| | | | - Eric M. Fèvre
- International Livestock Research InstituteNairobiKenya
- Institute of Infection, Veterinary, and Ecological SciencesUniversity of LiverpoolLiverpoolUK
| | - Laura C. Falzon
- International Livestock Research InstituteNairobiKenya
- Institute of Infection, Veterinary, and Ecological SciencesUniversity of LiverpoolLiverpoolUK
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16
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Crozet G, Lacoste ML, Rivière J, Robardet E, Cliquet F, Dufour B. Management practices of dog and cat owners in France (pet traveling, animal contact rates and medical monitoring): Impacts on the introduction and the spread of directly transmitted infectious pet diseases. Transbound Emerg Dis 2021; 69:1256-1273. [PMID: 33787076 DOI: 10.1111/tbed.14088] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 03/09/2021] [Accepted: 03/27/2021] [Indexed: 12/12/2022]
Abstract
A number of owner practices among the pet dog and cat population can influence the dynamics of directly transmitted infectious dog and cat diseases, including zoonotic ones. To better depict these management practices, which include pet traveling, contact rates with other companion animals and their medical monitoring (which herein includes prevention aspects), we surveyed 2,122 dog- and/or cat-owning French households through an anonymous online questionnaire. Trips with dogs within the European Union (EU) were frequent, while cats travelled less frequently within the EU and both cats and dogs travelled less frequently outside the EU. Recurrent illegal trips with dogs and cats (non-compliant with regulatory measures) were observed in a context of non-systematic pet border controls. We found that a large proportion of dogs are taken for walks in metropolitan France, with frequent intraspecific contacts (1.4 contacts/day on average), but only a minority (1.4%) of dogs were allowed to roam freely. On the other hand, 59.7% of cat owners allowed their cats to roam freely. We classified pet owners according to different profiles, some of which may be considered 'at risk' for directly transmitted infectious pet diseases. Indeed, one dog owner profile and one cat owner profile depict 'spreaders' of pet diseases (high connectivity with other individuals, little medical monitoring but no traveling) and another dog owner profile describes a potential 'introducer' and 'spreader' of pet diseases (foreign travel, high connectivity with other individuals, and intermediate medical monitoring). While these 'at risk' profiles represent only a minority of French pet owners, they should be better characterized to reinforce targeted prevention designed to minimize the risk of (re)introduction and (re)emergence of directly transmitted infectious dog and cat diseases in France, especially when considering zoonoses with a significant potential impact, such as rabies.
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Affiliation(s)
- Guillaume Crozet
- Anses, Ecole nationale vétérinaire d'Alfort, Laboratoire de Santé Animale USC EPIMAI, Maisons-Alfort, France
| | - Marie-Laure Lacoste
- Anses, Ecole nationale vétérinaire d'Alfort, Laboratoire de Santé Animale USC EPIMAI, Maisons-Alfort, France
| | - Julie Rivière
- Anses, Ecole nationale vétérinaire d'Alfort, Laboratoire de Santé Animale USC EPIMAI, Maisons-Alfort, France
| | - Emmanuelle Robardet
- Nancy OIE/WHO/EU Laboratory for Rabies and Wildlife, Anses, Malzéville, France
| | - Florence Cliquet
- Nancy OIE/WHO/EU Laboratory for Rabies and Wildlife, Anses, Malzéville, France
| | - Barbara Dufour
- Anses, Ecole nationale vétérinaire d'Alfort, Laboratoire de Santé Animale USC EPIMAI, Maisons-Alfort, France
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17
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Study on the Public Perception of "Community-Owned Dogs" in the Abruzzo Region, Central Italy. Animals (Basel) 2020; 10:ani10071227. [PMID: 32707663 PMCID: PMC7401527 DOI: 10.3390/ani10071227] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 07/05/2020] [Accepted: 07/09/2020] [Indexed: 11/16/2022] Open
Abstract
The Abruzzo Regional Law Nr. 47/2013, following a circular from the Italian Ministry of Health and OIE recommendations, allows the local municipalities to release free-roaming dogs (FRDs) caught on the territory once the local veterinary services (LVSs) have rated the dogs as unowned and not aggressive, have neutered them, as well as identified them through a microchip and a visible collar. The responsibility of these "community-owned dogs" (CODs) falls under the mayor of the local municipality that can entrust their custody to qualified people. The present study was conducted in the Abruzzo region, located in central Italy, to investigate public perception towards CODs, and in particular whether their presence is perceived as a problem or a benefit by the local communities. The data were collected by both direct interviews and an online survey, based on a questionnaire developed by a multidisciplinary team. The questionnaire was distributed in 31 municipalities sampled on the basis of the urbanization rate, and 497 people were interviewed over a 9-month period. More than half of the respondents (54%) stated that CODs can contribute to the control of stray dogs. The majority (83%) believed that a greater commitment is needed to involve the local communities on issues regarding CODs. The findings of this study highlighted the general difficulty for people to distinguish stray dogs from CODs that are not fully known, as evidenced by the fact that 59% of the respondents did not know the aforementioned Regional Law that defines and regulates the presence of the CODs.
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18
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de Brito JLM, Lima VND, Ansa DO, Moya SE, Morais PC, Azevedo RBD, Lucci CM. Acute reproductive toxicology after intratesticular injection of silver nanoparticles (AgNPs) in Wistar rats. Nanotoxicology 2020; 14:893-907. [PMID: 32529924 DOI: 10.1080/17435390.2020.1774812] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
This study aimed to evaluate the effects of an intratesticular injection of silver nanoparticles (AgNPs) on reproductive parameters and health of rats, and to evaluate the AgNPs biodistribution in order to develop a nanotechnological contraceptive agent for male animals. Treated animals received 220 μL of AgNPs solution (0.46 µg-Ag/ml) in each testicle and were euthanized: seven, 14, 28, and 56 days after injection. A significant decrease (p < 0.05) in the percentage of motile sperm in D7 (8.8%) was observed, comparing to the control (73.3%), D14 (86.0%), D28 (68.2%), and D56 (90.0%) groups. D7 group also presented a decrease (p < 0.05) in the percentage of normal spermatozoa. Additionally, D7 group showed an increase (p < 0.05) in abnormal midpiece and sperm head morphology compared to the Control group. Seminiferous tubules presented all germline cell types and spermatozoa for all groups. However, D7 group did not present spermatozoa in the epididymis, whereas some spermatozoa and cellular debris were visible in D14 and D28 groups. All animals presented hematological parameters, creatinine, and alanine aminotransferase values within the normal limits for Wistar rats. The percentage of silver found in the liver was always higher than in the other organs analyzed. A pioneering mathematical model is proposed, from which the half-life time of silver in the liver (17 days), spleen (23 days), lungs (30 days), and kidneys (35 days) was extracted. In conclusion, some acute and severe toxic effects were observed in sperm cells following intratesticular injection of AgNPs, although these effects were reversible. No adverse effects to general animal health were observed.
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Affiliation(s)
- Juliana Lis Mendes de Brito
- Laboratory of Animal Reproduction, Department of Physiological Sciences, Institute of Biological Sciences, University of Brasilia, Brasilia, Brazil
| | - Vanessa Nicolau de Lima
- Laboratory of Animal Reproduction, Department of Physiological Sciences, Institute of Biological Sciences, University of Brasilia, Brasilia, Brazil
| | - Dorleta Otaegui Ansa
- Mass Spectrometry Platform, Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), San Sebastián, Spain
| | - Sergio Enrique Moya
- Soft Matter Nanotechnology Lab, Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), San Sebastián, Spain
| | - Paulo Cesar Morais
- Institute of Physics, University of Brasilia, Brasilia, Brazil.,Genomic Sciences and Biotechnology, Catholic University of Brasilia, Brasilia, Brazil
| | - Ricardo Bentes de Azevedo
- Laboratory of Nanotechnology, Department of Genetics and Morphology, Institute of Biological Sciences, University of Brasilia, Brasilia, Brazil
| | - Carolina Madeira Lucci
- Laboratory of Animal Reproduction, Department of Physiological Sciences, Institute of Biological Sciences, University of Brasilia, Brasilia, Brazil
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19
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Movement patterns of free-roaming dogs on heterogeneous urban landscapes: Implications for rabies control. Prev Vet Med 2020; 178:104978. [PMID: 32302776 DOI: 10.1016/j.prevetmed.2020.104978] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 02/07/2020] [Accepted: 03/24/2020] [Indexed: 12/25/2022]
Abstract
In 2015, a case of canine rabies in Arequipa, Peru indicated the re-emergence of rabies virus in the city. Despite mass dog vaccination campaigns across the city and reactive ring vaccination and other control activities around positive cases (e.g. elimination of unowned dogs), the outbreak has spread. Here we explore how the urban landscape of Arequipa affects the movement patterns of free-roaming dogs, the main reservoirs of the rabies virus in the area. We tracked 23 free-roaming dogs using Global Positioning System (GPS) collars. We analyzed the spatio-temporal GPS data using the time- local convex hull method. Dog movement patterns varied across local environments. We found that water channels, an urban feature of Arequipa that are dry most of the year, promote movement. Dogs that used the water channels extensively move on average 7 times further (p = 0.002) and 1.2 times more directionally (p = 0.027) than dogs that do not use the water channels at all. They were also 1.3 times faster on average, but this difference was not statistically significant (p = 0.197). Our findings suggest that water channels can be used by dogs as 'highways' to transverse the city and have the potential to spread disease far beyond the radius of control practices. Control efforts should focus on a robust vaccination campaign attuned to the geography of the city, and not limited to small-scale rings surrounding cases.
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20
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Tiwari HK, Robertson ID, O'Dea M, Vanak AT. Demographic characteristics of free-roaming dogs (FRD) in rural and urban India following a photographic sight-resight survey. Sci Rep 2019; 9:16562. [PMID: 31719565 PMCID: PMC6851138 DOI: 10.1038/s41598-019-52992-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Accepted: 10/24/2019] [Indexed: 11/08/2022] Open
Abstract
An understanding of the core demographic characteristics of the sub-populations of FRD is essential to effectively implement both rabies control interventions through mass vaccination of FRD, and dog population control programmes. This study compares the data obtained following photographic sight-resight surveys in rural (Shirsuphal village in west India) and urban (Municipal Corporation Panchkula in north India) locations . A total of 263 and 1408 FRD were seen at least once through 617 and 3465 sightings in the rural and urban sites, respectively. The rural location had a lower proportion of females (OR 0.5, 95% CI 0.4-0.7) and a higher proportion of poor and fair conditioned dogs (OR 1.8, 95% CI 1.3-2.3) compared to the urban setting. The rural site also had fewer active FRD (OR 0.6, 95% CI 0.5-0.7) and FRD were less likely to be sighted within 20 m of garbage points (OR 0.3, 95% CI 0.2-0.3) compared to the urban site. The demographic composition of the FRD population was found to vary within the urban location, with the odds of sighting a de-sexed dog being significantly higher in residential areas compared to other areas. The study underlines the importance of knowing the demographic composition of FRD for implementation of effective interventions against rabies. Fewer female dogs in the rural location indicate that spaying could be an effective tool for dog population management in this setting, while presence of dogs within 20 m of garbage points in urban settings highlights that an improved garbage management may reduce the carrying capacity of the urban locality resulting in smaller FRD population. It is concluded that quick and low cost surveys can generate useful demographic data for FRD in urban and rural settings which can be useful to understand the epidemiology of rabies and its control.
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Affiliation(s)
- Harish Kumar Tiwari
- College of Veterinary Medicine, School of Veterinary and Life Sciences, Murdoch University, Perth, Western Australia, Australia.
- Ashoka Trust for Research on Ecology and the Environment (ATREE), Bangalore, India.
- AUSVET, 5 Shuffrey Street, Fremantle, Perth, Western Australia, Australia.
| | - Ian D Robertson
- College of Veterinary Medicine, School of Veterinary and Life Sciences, Murdoch University, Perth, Western Australia, Australia
- China-Australia Joint Research and Training Center for Veterinary Epidemiology, Huazhong Agricultural University, Wuhan, 430070, Hubei, China
| | - Mark O'Dea
- College of Veterinary Medicine, School of Veterinary and Life Sciences, Murdoch University, Perth, Western Australia, Australia
| | - Abi Tamim Vanak
- Ashoka Trust for Research on Ecology and the Environment (ATREE), Bangalore, India
- Wellcome Trust/DBT India-Alliance Fellow, Hyderabad, India
- School of Life Sciences, University of KwaZulu-Natal, Durban, South Africa
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21
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Utilising Group-Size and Home-Range Characteristics of Free-Roaming Dogs (FRD) to Guide Mass Vaccination Campaigns against Rabies in India. Vaccines (Basel) 2019; 7:vaccines7040136. [PMID: 31575061 PMCID: PMC6963394 DOI: 10.3390/vaccines7040136] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 09/21/2019] [Accepted: 09/25/2019] [Indexed: 02/07/2023] Open
Abstract
Adequate vaccination coverage of free roaming dogs (FRD) against canine rabies is not achieved primarily due to difficulties in administering parenteral vaccinations to this population. One factor associated with this difficulty is the tendency of FRD to form groups, which increases their aggressive behavior, resulting in a significant risk of dog-bites for the vaccinators. This study investigated factors that influenced FRD forming groups and their home-ranges, using data obtained from photographic capture-recapture/sight-resight surveys conducted in rural Shirsuphal (584 sightings) and urban Panchkula (3208 sightings), India. In the rural site, older dogs (OR 0.5, 95% CI 0.2-0.9, p = 0.03) and FRD sighted within 20 m of garbage sites (OR 0.6, 95% CI 0.4-0.9, p = 0.02) were less likely to be in groups. The number of dogs sighted with an FRD decreased with increased resight-probability of that dog (β= -1.0, p < 0.001). The rural FRD with smaller home-ranges were more likely to be sighted alone (OR 2.3, 95% CI 1.0-95, p = 0.04) than those with larger home-ranges. In the urban site, females (OR 1.3, 95% CI 1.1-1.5, p = 0.002) and older dogs (OR 1.5, 95% CI 1.1-2.1, p = 0.07) were more likely to be found in groups, and groups of dogs were more likely to be seen within 20 meters of garbage sites (OR 1.7, 95% CI 1.5-2.0, p < 0.001). The distribution of urban FRD sighted alone, in pairs, triads, and in packs of ≥4 dogs were not random in the administrative (p = 0.02), and the two industrial (p = 0.03 & 0.01) survey tracks of the urban site, implying stable groups. The resighting probability of a dog (β = 0.3, p < 0.0001) and presence of garbage within 20 m (β = 0.2, p < 0.0001) in the urban site increased the likelihood of sighting a FRD with other dogs. It is concluded that data on the resighting probability, presence of garbage points, and home-ranges can be utilised to guide the selection of parenteral or oral rabies vaccination to achieve a population vaccination coverage of 70% to break the transmission cycle of rabies virus in FRD in India.
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Escobar-Aguirre S, Alegría-Morán RA, Calderón-Amor J, Tadich TA. Can Responsible Ownership Practices Influence Hunting Behavior of Owned Cats?: Results from a Survey of Cat Owners in Chile. Animals (Basel) 2019; 9:ani9100745. [PMID: 31569506 PMCID: PMC6826938 DOI: 10.3390/ani9100745] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 09/22/2019] [Accepted: 09/27/2019] [Indexed: 11/16/2022] Open
Abstract
The domestic cat (Felis catus) has become a worldwide threat to wildlife. The potential impact of owned cats on wildlife in Chile has not been documented at a large scale. The purpose of this study was to investigate the number and type of prey that owned cats bring back in Chile and its relation with responsible ownership practices. An online survey was distributed to 5216 households that included questions about the type of pet, responsible ownership practices, and in the case of cats, the type of prey they brought home. Descriptive statistics as well as univariate and multivariate logistic regression analysis were applied. The results showed that 94.3% of respondents had a pet, and from these, 49.9% had at least one cat. A total of 84.1% of owners reported that their cats had brought back prey. Birds were the most common type of prey, followed by mammals and insects. Not being registered with a microchip, not having a litter box, living in a house with access to a garden, not having a hiding place for the cats, and having free access to the outdoors significantly increased the odds of cats bringing back prey. Body condition score or providing ad libitum food to cats did not have an effect on bringing prey.
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Affiliation(s)
- Sebastián Escobar-Aguirre
- Departamento de Ciencias Animales, Facultad de Agronomía e Ingeniería Forestal, Pontificia Universidad Católica de Chile, Santiago 8940000, Chile.
- Fundación Ciencia Ciudadana, Providencia, Santiago 7500000, Chile.
| | - Raúl A Alegría-Morán
- Departamento de Medicina Preventiva Animal, Facultad de Ciencias Veterinarias y Pecuarias. Universidad de Chile, Santiago 8820808, Chile.
- Facultad de Ciencias Agropecuarias, Universidad Pedro de Valdivia, Santiago 7500908, Chile.
| | - Javiera Calderón-Amor
- Instituto de Ciencia Animal, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Isla Teja, Valdivia 5090000, Chile.
| | - Tamara A Tadich
- Departamento de Fomento de la Producción Animal, Facultad de Ciencias Veterinarias y Pecuarias, Universidad de Chile, Santa Rosa 11735, La Pintana, Santiago 8820808, Chile.
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23
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Dalla Villa P, Migliaccio P, Innocenti I, Nardoia M, Lafiandra D. Companion Animals Welfare in Non-Epidemic Emergencies: The Case of Central Italy, Post-Earthquake 2016/2017. ACTA ACUST UNITED AC 2019. [DOI: 10.1163/25889567-12340012] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Abstract
Among the several factors affecting animal welfare, non-epidemic emergencies are very stressful events. In the aftermath of earthquakes or during flooding, snowstorms and wildfires, companion animals are subject to injuries and deep stress, abandonment or loss resulting in the overcrowding of animal shelters, or in emergent free-roaming populations representing a potential public health threat to the affected communities. The loss of animals often also results in significant psychological trauma for their guardians. For these reasons in all phases of calamities, the care of companion animals becomes essential. This paper describes the activities that were carried out for the veterinary care of dogs and cats affected by the earthquakes that occurred in central Italy from August 2016 to January 2017. These disasters provided an opportunity to test an integrated emergency management system in which several actors participated to aid, assist and accommodate the companion animals, whether owned or strays, affected by the catastrophic events.
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Affiliation(s)
- P. Dalla Villa
- Istituto Zooprofilattico Sperimentale dell’Abruzzo e del Molise Campo Boario, 64100, Teramo (TE) Italy
| | - P. Migliaccio
- Istituto Zooprofilattico Sperimentale dell’Abruzzo e del Molise Campo Boario, 64100, Teramo (TE) Italy
| | - I. Innocenti
- Lega Antivivisezione Viale Regina Margherita, 177-00198 Roma (RM) Italy
| | - M. Nardoia
- Istituto Zooprofilattico Sperimentale dell’Abruzzo e del Molise Campo Boario, 64100, Teramo (TE) Italy
| | - D.C. Lafiandra
- Azienda Sanitaria Locale Rieti, Dipartimento di Prevenzione Via del Terminillo, 02100, Rieti (RI) Italy
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Dog days are just starting: the ecology invasion of free-ranging dogs (Canis familiaris) in a protected area of the Atlantic Forest. EUR J WILDLIFE RES 2019. [DOI: 10.1007/s10344-019-1303-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Tiwari HK, Robertson ID, O'Dea M, Gogoi-Tiwari J, Panvalkar P, Bajwa RS, Vanak AT. Validation of Application SuperDuplicates (AS) Enumeration Tool for Free-Roaming Dogs (FRD) in Urban Settings of Panchkula Municipal Corporation in North India. Front Vet Sci 2019; 6:173. [PMID: 31245391 PMCID: PMC6562275 DOI: 10.3389/fvets.2019.00173] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2019] [Accepted: 05/17/2019] [Indexed: 11/24/2022] Open
Abstract
A cost-effective estimation of the number of free-roaming dogs is an essential prerequisite for the control of rabies in countries where the disease is endemic, as vaccination of at least 70% of the population is recommended to effectively control the disease. Although estimating the population size through sight-resight based maximum likelihood methodology generates an estimate closest to the actual size, it requires at least five survey efforts to achieve this. In a rural setting in India, a reliable estimate of at least 70% of the likely true population of free-roaming dogs was obtained with the Application SuperDuplicates shinyapp online tool using a photographic sight-resight technique through just two surveys. We tested the wider applicability of this method by validating its use in urban settings in India. Sight-resight surveys of free-roaming dogs were conducted in 15 sectors of the Panchkula Municipal Corporation in north India during September- October 2016. A total of 1,408 unique dogs were identified through 3,465 sightings on 14 survey tracks. The estimates obtained by the Application SuperDuplicates shinyapp online tool after two surveys were compared with the maximum likelihood estimates and it was found that the former, after two surveys, provided an estimate that was at least 70% of that obtained by the latter after 5-6 surveys. Thus, the Application SuperDuplicates shinyapp online tool provides an efficient means for estimating the minimum number of free-roaming dogs to vaccinate with a considerably lower effort than the traditional mark-resight based methods. We recommend use of this tool for estimating the vaccination target of free-roaming dogs prior to undertaking mass vaccination efforts against rabies.
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Affiliation(s)
- Harish Kumar Tiwari
- School of Veterinary Medicine, Murdoch University, Perth, WA, Australia
- Ausvet, Fremantle, WA, Australia
- Ashoka Trust for Research in Ecology and the Environment, Bangalore, India
| | - Ian D. Robertson
- School of Veterinary Medicine, Murdoch University, Perth, WA, Australia
- China-Australia Joint Research and Training Center for Veterinary Epidemiology, Huazhong Agricultural University, Wuhan, China
| | - Mark O'Dea
- School of Veterinary Medicine, Murdoch University, Perth, WA, Australia
| | - Jully Gogoi-Tiwari
- School of Pharmacy and Biomedical Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, WA, Australia
| | - Pranav Panvalkar
- Ashoka Trust for Research in Ecology and the Environment, Bangalore, India
| | | | - Abi Tamim Vanak
- Ashoka Trust for Research in Ecology and the Environment, Bangalore, India
- Wellcome Trust/DBT India-Alliance Fellow, Hyderabad, India
- School of Life Sciences, University of KwaZulu-Natal, Durban, South Africa
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Engaging with Socio-Economically Disadvantaged Communities and Their Cats: Human Behaviour Change for Animal and Human Benefit. Animals (Basel) 2019; 9:ani9040175. [PMID: 30999663 PMCID: PMC6523136 DOI: 10.3390/ani9040175] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Revised: 03/20/2019] [Accepted: 04/12/2019] [Indexed: 11/17/2022] Open
Abstract
The overpopulation of free-roaming domestic cats (Felis catus) is fuelled by uncontrolled breeding of both owned and unowned populations and has been identified as a particular problem in socio-economically deprived areas. Consequently, for sustainable change, it is recommended that Trap-Neuter-Return activities are linked with community engagement to encourage positive behaviours towards cats. This paper assesses the acceptability and impact of a community-partnership program called "Bulwell Cat Watch" (BCW), set-up to control cat numbers in Bulwell, UK. The data are based on a (1) cross-sectional survey (n = 478); (2) pre-post analysis (n = 21); and (3) targeted survey of people known to engage with BCW (n = 34). We found significant associations between awareness of BCW and an increased likelihood of reporting unowned cats now compared to previous years. Respondents reported increased self-efficacy and confidence to help cats. Our pre-post study corroborated these findings with residents significantly more likely to report unowned cats compared to when surveyed pre-BCW. An indirect benefit to residents engaged with the program was the positive impact on confidence and self-esteem. Taken in combination these results show community partnerships can effectively engage often hard-to-reach populations and foster sustainable management by overcoming barriers to helping cats, alongside the potential for wider community benefits.
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Tiwari HK, Vanak AT, O’Dea M, Robertson ID. Knowledge, attitudes and practices towards dog-bite related rabies in para-medical staff at rural primary health centres in Baramati, western India. PLoS One 2018; 13:e0207025. [PMID: 30444871 PMCID: PMC6239288 DOI: 10.1371/journal.pone.0207025] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Accepted: 10/22/2018] [Indexed: 12/03/2022] Open
Abstract
The lack of awareness regarding rabies amongst rural primary care health staff and their adverse practices towards the management of dog-bite wounds is a major contributor to the high incidence of rabies infection and subsequent human mortality in India. A Knowledge, Attitudes and Practices survey was carried out involving 54 nursing and non-nursing staff working in 18 rural Primary Health centres and sub-centres around Baramati town of Pune district in Western India. Multivariable logistic regression models were constructed to assess factors that influenced knowledge of rabies and practices towards management of dog-bite related wounds. The more experienced and better-educated workers were found to have a good awareness of rabies (OR 3.4, 95%CI 1.0-12.1) and good practices towards dog-bite wound management (OR 5.6, 95%CI 1.2-27.0). Surprisingly, non-nursing staff were significantly more knowledgeable about rabies (OR 3.5, 95%CI 1.0-12.3), but their practices towards dog-bite wound management were inadequate (OR 0.18, 95%CI 0.04-0.8) compared to the nursing staff. It is recommended that a mandatory training module for primary care health staff be developed and implemented to improve their knowledge regarding rabies and management of dog-bite wounds to reduce the incidence of human rabies in rural India.
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Affiliation(s)
- Harish Kumar Tiwari
- College of Veterinary Medicine, School of Veterinary and Life Sciences, Murdoch University, Western Australia, Australia
- Ashoka Trust for Research on Ecology and Environment (ATREE), Bangalore, India
| | - Abi Tamim Vanak
- Ashoka Trust for Research on Ecology and Environment (ATREE), Bangalore, India
- Wellcome Trust/DBT India-Alliance, Hyderabad, India
- School of Life Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Mark O’Dea
- College of Veterinary Medicine, School of Veterinary and Life Sciences, Murdoch University, Western Australia, Australia
| | - Ian Duncan Robertson
- College of Veterinary Medicine, School of Veterinary and Life Sciences, Murdoch University, Western Australia, Australia
- China-Australia Joint Research and Training Center for Veterinary Epidemiology, Huazhong Agricultural University, Wuhan, Hubei, China
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McDonald JL, Farnworth MJ, Clements J. Integrating Trap-Neuter-Return Campaigns Into a Social Framework: Developing Long-Term Positive Behavior Change Toward Unowned Cats in Urban Areas. Front Vet Sci 2018; 5:258. [PMID: 30406118 PMCID: PMC6207997 DOI: 10.3389/fvets.2018.00258] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Accepted: 09/28/2018] [Indexed: 11/16/2022] Open
Abstract
Cat management is often discussed in terms of population reduction, with trap-neuter-return (TNR) campaigns commonly organized to manage unowned urban cat populations. However, long-term effectiveness is only possible if positive neutering practices are continued by local residents. Here we discuss how implementing TNR within a wider framework of social engagement has the potential to tackle cat overpopulation and instill long-term positive behavior change toward them. We demonstrate how community engagement pre-TNR can help establish a baseline of the attitudes, knowledge and behavior concerning cats. Using a case study, we explore whether this information can be linked with positive intended behavior based on intentions to arrange for neutering of unowned cats. Structural equation modeling indicated that negative attitudes toward cats and reduced knowledge around neutering reduced the likelihood of positive intended behavior. This result was underpinned by the indirect effects of perceptions of unowned cats and reduced understanding of their needs. Utilizing these results alongside an understanding of the values and motivation of the community allows for tailored and targeted education and intervention. In turn, this addresses the underlying knowledge gaps and perceptions regarding cat welfare. This framework can help address the challenge of cat management because it: (1) takes an integrative approach to identifying the motivations of communities to take responsibility for unowned cats; (2) changes the structure of the social environment, encouraging positive neutering practices for unowned cats. In turn this improves the impact and longevity of TNR campaigns whilst promoting positive welfare change for unowned and owned cats; and (3) appreciates that opinions are likely to vary hugely between areas, therefore providing an adaptable community level approach.
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Affiliation(s)
- Jennifer L McDonald
- Cats Protection, National Cat Centre, Haywards Heath, United Kingdom.,Bristol Veterinary School, University of Bristol, Bristol, United Kingdom
| | - Mark J Farnworth
- Animal, Rural and Environmental Sciences, Nottingham Trent University, Southwell, United Kingdom
| | - Jane Clements
- Cats Protection, National Cat Centre, Haywards Heath, United Kingdom
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29
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Tiwari HK, Vanak AT, O'Dea M, Gogoi-Tiwari J, Robertson ID. A Comparative Study of Enumeration Techniques for Free-Roaming Dogs in Rural Baramati, District Pune, India. Front Vet Sci 2018; 5:104. [PMID: 29881728 PMCID: PMC5977283 DOI: 10.3389/fvets.2018.00104] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Accepted: 04/27/2018] [Indexed: 11/04/2022] Open
Abstract
The presence of unvaccinated free-roaming dogs (FRD) amidst human settlements is a major contributor to the high incidence of rabies in countries such as India, where the disease is endemic. Estimating FRD population size is crucial to the planning and evaluation of interventions, such as mass immunisation against rabies. Enumeration techniques for FRD are resource intensive and can vary from simple direct counts to statistically complex capture-recapture techniques primarily developed for ecological studies. In this study we compared eight capture-recapture enumeration methods (Lincoln-Petersen's index, Chapman's correction estimate, Beck's method, Schumacher-Eschmeyer method, Regression method, Mark-resight logit normal method, Huggin's closed capture models and Application SuperDuplicates on-line tool) using direct count data collected from Shirsuphal village of Baramati town in Western India, to recommend a method which yields a reasonably accurate count to use for effective vaccination coverage against rabies with minimal resource inputs. A total of 263 unique dogs were sighted at least once over 6 observation occasions with no new dogs sighted on the 7th occasion. Besides this direct count, the methods that do not account for individual heterogeneity yielded population estimates in the range of 248-270, which likely underestimate the real FRD population size. Higher estimates were obtained using the Huggin's Mh-Jackknife (437 ± 33), Huggin's Mth-Chao (391 ± 26), Huggin's Mh-Chao (385 ± 30), models and Application "SuperDuplicates" tool (392 ± 20) and were considered more robust. When the sampling effort was reduced to only two surveys, the Application SuperDuplicates online tool gave the closest estimate of 349 ± 36, which is 74% of the estimated highest population of free-roaming dogs in Shirsuphal village. This method may thus be considered the most reliable method for estimating the FRD population with minimal inputs (two surveys conducted on consecutive days).
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Affiliation(s)
- Harish Kumar Tiwari
- College of Veterinary Medicine, School of Veterinary and Life Sciences, Murdoch University, Perth, WA, Australia
- Ashoka Trust for Research on Ecology and Environment (ATREE), Bengaluru, India
| | - Abi Tamim Vanak
- Ashoka Trust for Research on Ecology and Environment (ATREE), Bengaluru, India
- Wellcome Trust DBT India-Alliance, Hyderabad, India
- School of Life Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Mark O'Dea
- College of Veterinary Medicine, School of Veterinary and Life Sciences, Murdoch University, Perth, WA, Australia
| | - Jully Gogoi-Tiwari
- School of Pharmacy and Biomedical Sciences, Curtin Health Innovation Research Institute (CHIRI), Curtin University, Perth, WA, Australia
| | - Ian Duncan Robertson
- College of Veterinary Medicine, School of Veterinary and Life Sciences, Murdoch University, Perth, WA, Australia
- China-Australia Joint Research and Training Center for Veterinary Epidemiology, Huazhong Agricultural University, Wuhan, China
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30
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Hernandez SM, Loyd KAT, Newton AN, Gallagher M'C, Carswell BL, Abernathy KJ. Activity patterns and interspecific interactions of free-roaming, domestic cats in managed Trap-Neuter-Return colonies. Appl Anim Behav Sci 2018. [DOI: 10.1016/j.applanim.2018.01.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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31
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Prevalence of Toxoplasma gondii and Other Gastrointestinal Parasites in Domestic Cats from Households in Thika Region, Kenya. BIOMED RESEARCH INTERNATIONAL 2017; 2017:7615810. [PMID: 28691033 PMCID: PMC5485282 DOI: 10.1155/2017/7615810] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Accepted: 05/21/2017] [Indexed: 11/26/2022]
Abstract
Gastrointestinal (GIT) parasites of domestic cats (Felis catus) not only cause morbidity but are also potential zoonotic agents. The current study aimed at establishing the prevalence of GIT parasites in cats kept by households in Thika region, Kenya. Fecal samples were collected randomly from 103 cats and analyzed for presence of parasites using standard parasitological methods. In descending order, the prevalence of the detected protozoa parasites was Isospora spp. 43.7% (95% CI: 40.4–47%), Cryptosporidium spp. 40.8% (95% CI: 37.5–44.1%), Toxoplasma gondii 7.8% (95% CI: 4.5–11.1%), and Entamoeba spp. 2.9% (95% CI: 1.6–6.2%). The prevalence of the observed helminths was Strongyloides stercoralis 43.7% (95% CI: 40.4–47%), Toxocara cati 23.3% (95% CI: 20–26.6%), Ancylostoma spp. 9.7% (95% CI: 6.4–13%), Dipylidium caninum 8.7% (95% CI: 5.4–12.0%), and Acanthocephala spp. 1.9% (95% CI: 1–4.2%). The percentage of cats excreting at least one species of parasite was 73.2% (95% CI = 69.9–76.5%). The study shows that the cats have high spectrum (9) of parasites which are known to affect the cat's health and some are of zoonotic significance.
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32
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Dürr S, Dhand NK, Bombara C, Molloy S, Ward MP. What influences the home range size of free-roaming domestic dogs? Epidemiol Infect 2017; 145:1339-1350. [PMID: 28202088 PMCID: PMC10027489 DOI: 10.1017/s095026881700022x] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
In many regions of the world domestic dogs are free roaming and live in close relationship with humans. These free-roaming domestic dogs (FRDD) can cause public health problems such as dog bites and transmission of infectious diseases. To effectively control diseases transmitted by FRDD, knowledge on the dogs' behaviour is required. To identify predictors of home range (HR) size, we collected global positioning system data from 135 FRDD living in eight Aboriginal and Torres Strait Islander communities in Northern Australia. The core HR size ranged from 0·17 to 2·33 ha and the extended HR size from 0·86 to 40·46 ha. Using a linear mixed effect model with a Restricted Maximum Likelihood approach, the dog's sex and reproductive status were identified as predictors of roaming. Non-castrated males had the largest HRs, followed by neutered females. Also, FRDDs were found to roam further during the pre- than the post-wet season. These findings have implications for infectious disease spread. Identification of risk groups for disease spread within a population allows for more targeted disease response and surveillance. Further investigation of predictors of roaming in other FRDD populations worldwide would increase the external validity of such studies.
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Affiliation(s)
- S Dürr
- Veterinary Public Health Institute, Vetsuisse Faculty,University of Bern,Switzerland
| | - N K Dhand
- Sydney School of Veterinary Science,The University of Sydney,Australia
| | - C Bombara
- Sydney School of Veterinary Science,The University of Sydney,Australia
| | - S Molloy
- Sydney School of Veterinary Science,The University of Sydney,Australia
| | - M P Ward
- Sydney School of Veterinary Science,The University of Sydney,Australia
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Molloy S, Burleigh A, Dürr S, Ward MP. Roaming behaviour of dogs in four remote Aboriginal communities in the Northern Territory, Australia: preliminary investigations. Aust Vet J 2017; 95:55-63. [PMID: 28239863 DOI: 10.1111/avj.12562] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2015] [Revised: 05/22/2016] [Accepted: 07/12/2016] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To estimate the home range (HR) and investigate the potential predictors for roaming of 58 dogs in four Aboriginal communities in the Northern Territory. DESIGN Prospective study. PROCEDURE Global positioning system (GPS) collars were attached to the dogs for 1-4 days, recording location fixes every 1-3 min. Utilisation distributions (UDs) and extended (95% isopleth) and core (50% isopleth) HRs of dogs were determined. Potential predictors of roaming were assessed. RESULTS Estimated core (median, 0.27 ha) and extended (median, 3.1 ha) HRs differed significantly (P = 0.0225 and 0.0345, respectively) between the four communities; dogs in the coastal community travelled significantly (P < 0.0001) more per day than dogs in the three inland communities studied. Significant associations were found between extended HR size and sex (P = 0.0050) and sex + neuter (P = 0.0218), and between core HR size and sex (P = 0.0010), neuter status (P = 0.0255) and sex + neuter (P = 0.0025). Entire males roamed more than neutered females. The core HR of dogs with poor/fair body condition scores (BCSs) was larger than dogs with ideal/obese BCSs (P = 0.0394). Neutered male dogs also travelled more per day than entire female dogs (P = 0.0475). CONCLUSIONS Roaming information can be used to inform the management of dogs in remote communities and to design disease control programs. Widespread data collection across the Northern Territory should be undertaken to further investigate the associations found in this study, considering that data were collected during relatively short periods of time in one season.
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Affiliation(s)
- S Molloy
- The University of Sydney, School of Veterinary Science, Camden, NSW 2570, Australia
| | - A Burleigh
- Aboriginal Community Veterinary Services, Katherine, Northern Territory, Australia
| | - S Dürr
- University of Bern, Veterinary Public Health Institute, Bern, Switzerland
| | - M P Ward
- The University of Sydney, School of Veterinary Science, Camden, NSW 2570, Australia
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34
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Alvåsen K, Johansson SM, Höglund J, Ssuna R, Emanuelson U. A field survey on parasites and antibodies against selected pathogens in owned dogs in Lilongwe, Malawi. J S Afr Vet Assoc 2016; 87:e1-6. [PMID: 27543039 PMCID: PMC6138158 DOI: 10.4102/jsava.v87i1.1358] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Revised: 04/12/2016] [Accepted: 05/03/2016] [Indexed: 11/01/2022] Open
Abstract
The aim of this study was to screen for selected parasites and antibody levels against vectorborne pathogens in owned dogs in Lilongwe, Malawi. The study population consisted of 100 dogs; 80 participating in vaccination-spaying campaigns and 20 visiting a veterinary clinic as paying clients. All dogs went through a general physical examination including visual examination for signs of ectoparasites. A total of 100 blood samples were analysed using commercial snap tests and 40 faecal samples by egg flotation in saturated sodium chloride. The sampled dogs had a seroprevalence of 12% for Anaplasma spp., 22% for Ehrlichia spp., 4% for Dirofilaria immitis and 1% for Leishmania spp. Eggs from Ancylostoma spp. were found in 80% of the faecal samples, whereas eggs of Trichuris vulpis, Toxocara canis and Toxascaris leonina were only present in 3%, 8% and 13% of the samples, respectively. Ectoparasites such as Ctenocephalides sp., Trichodectes sp. and ticks were present on 98%, 25% and 11%, respectively, of the campaign dogs. Among client dogs, 35% had Ctenocephalides fleas, 10% had Trichodectes lice and none had ticks. Public education and prophylactic treatment could be used to improve the animal welfare of dogs; this would most likely also have positive impact on public health.
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Affiliation(s)
- Karin Alvåsen
- Department of Clinical Sciences, Swedish University of Agricultural Sciences.
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35
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Massei G, Fooks AR, Horton DL, Callaby R, Sharma K, Dhakal IP, Dahal U. Free-Roaming Dogs in Nepal: Demographics, Health and Public Knowledge, Attitudes and Practices. Zoonoses Public Health 2016; 64:29-40. [PMID: 27334892 DOI: 10.1111/zph.12280] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Indexed: 11/26/2022]
Abstract
In Nepal, most dogs are free to roam and may transmit diseases to humans and animals. These dogs often suffer from malnutrition and lack basic health care. Minimal information is available about their demographics and about public attitudes concerning dogs and diseases. We carried out a study in Chitwan District (central Nepal), to collect baseline data on free-roaming owned dog demographics, assess knowledge, attitudes and practices of dog owners concerning dogs and rabies, evaluate rabies vaccination coverage and anthelmintic treatment of dogs, measure dogs' response to rabies vaccination and assess dog health through body condition scores and parasites. We conducted household interviews with owners of free-roaming female dogs (n = 60) and administered dogs with rabies vaccination and anthelmintics. Dog owners regularly fed free-roaming dogs but provided minimal health care; 42% of respondents did not claim ownership of the dog for which they provided care. We collected skin, faecal and blood samples for parasite identification and for measuring rabies virus-specific antibodies. Ninety-two per cent of dog owners were aware of the routes of rabies virus transmission, but only 35% described the correct post-exposure prophylaxis (PEP) following a dog bite. Twenty-seven per cent of the dogs had measurable rabies virus-specific antibody titres and 14% had received anthelmintics in the previous year. Following rabies vaccination, 97% of dogs maintained an adequate antibody titre for ≥6 months. Most dogs appeared healthy, although haemoprotozoans, endoparasites and ectoparasites were identified in 12%, 73% and 40% of the dogs, respectively. Poor skin condition and parasite load were associated. Seventy-four per cent of the females had litters in 1 year (mean litter size = 4.5). Births occurred between September and February; we estimated 60% mortality in puppies. We concluded that vaccination coverage, PEP awareness and anthelmintic treatment should be emphasized in educational programmes focussed on animal welfare, veterinary and public health.
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Affiliation(s)
- G Massei
- Animal and Plant Health Agency, National Wildlife Management Centre, York, UK
| | - A R Fooks
- Animal and Plant Health Agency, Wildlife Zoonoses and Vector-borne Disease Research Group, Weybridge, UK.,Department of Clinical Infection, Microbiology and Immunology, University of Liverpool, Liverpool, UK
| | - D L Horton
- Animal and Plant Health Agency, Wildlife Zoonoses and Vector-borne Disease Research Group, Weybridge, UK.,School of Veterinary Medicine, University of Surrey, Guildford, UK
| | - R Callaby
- Animal and Plant Health Agency, National Wildlife Management Centre, York, UK
| | - K Sharma
- Himalayan Animal Rescue Trust, Kathmandu, Nepal
| | - I P Dhakal
- Faculty of Animal Science, Veterinary Science and Fisheries, Agricultural and Forestry University (AFU), Rampur Chitwan, Nepal
| | - U Dahal
- Directorate of Animal Health, Department of Livestock Services, Kathmandu, Nepal
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36
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PREVALENCE OF ANTIBODIES TO SELECTED VIRUSES AND PARASITES IN INTRODUCED AND ENDEMIC CARNIVORES IN WESTERN MADAGASCAR. J Wildl Dis 2016; 52:544-52. [PMID: 27195685 DOI: 10.7589/2015-03-063] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Introduced animals impact endemic populations through predation, competition, and disease transmission. Populations of endemic carnivores in Madagascar are declining, and pathogens transmitted from introduced species may further endanger these unique species. We assessed the exposure of introduced and endemic carnivores to common viral and parasitic pathogens in two national parks of Madagascar (Kirindy Mitea National Park and Ankarafantsika National Park) and their neighboring villages. We also identified variables associated with the presence of antibodies to these pathogens in fosa ( Cryptoprocta ferox ). Introduced and endemic species were exposed to canine parvovirus, canine herpesvirus, feline calicivirus, and Toxoplasma gondii . Domestic dogs ( Canis familiaris ) and cats ( Felis catus ) may be sources of infection for these pathogens. Prevalence of antibodies to Toxoplasma in captured fosa was >93%, and adults were more likely to be exposed than immature individuals. Our data provide a basis upon which to evaluate and manage risks of pathogen transmission between species.
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37
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Shapiro AJ, Norris JM, Heller J, Brown G, Malik R, Bosward KL. Seroprevalence ofCoxiella burnetiiin Australian dogs. Zoonoses Public Health 2016; 63:458-66. [DOI: 10.1111/zph.12250] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Indexed: 01/02/2023]
Affiliation(s)
- A. J. Shapiro
- Faculty of Veterinary Science; The University of Sydney; Sydney NSW Australia
| | - J. M. Norris
- Faculty of Veterinary Science; The University of Sydney; Sydney NSW Australia
| | - J. Heller
- School of Animal & Veterinary Sciences; Charles Sturt University; Wagga NSW Australia
| | - G. Brown
- Faculty of Veterinary Science; The University of Sydney; Sydney NSW Australia
| | - R. Malik
- School of Animal & Veterinary Sciences; Charles Sturt University; Wagga NSW Australia
- Centre for Veterinary Education; University of Sydney; Sydney NSW Australia
| | - K. L. Bosward
- Faculty of Veterinary Science; The University of Sydney; Camden NSW Australia
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38
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Defining priorities for dog population management through mathematical modeling. Prev Vet Med 2015; 123:121-127. [PMID: 26652574 DOI: 10.1016/j.prevetmed.2015.11.009] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2015] [Revised: 11/06/2015] [Accepted: 11/16/2015] [Indexed: 11/20/2022]
Abstract
We simulated dog population dynamics for a thirty-years period using a logistic growth model. Through sensitivity analyses, we determined the influence of the parameters used in the model. Carrying capacity was the most influential parameter in all simulations. In the owned-dog population, the influence of immigration, abandonment and births was 19%, 16% and 6% of the influence of the carrying capacity, respectively. In the sterilized owned-dog population, the influence of abandonment, female and male sterilization was 37%, 30% and 27% of the influence of the carrying capacity. In the stray population, the influence of abandonment, carrying capacity of the owned-dog population and adoption was 10%, 9% and 6% of the influence of the carrying capacity. In the sterilized stray population, the influence of births, female sterilization and male sterilization was 45%, 15% and 13% of the influence of the carrying capacity. Other parameters had lower influence values. Modification of the carrying capacity requires different interventions for the owned- and stray-dog populations. Dog trade control is a way to reduce immigration. The evaluation of sterilization effects must focus on the variations in the infertile population fraction. Adoption may improve the effects of the reduction in carrying capacity on the stray-dog population.
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Nuisances and welfare of free-roaming cats in urban settings and their association with cat reproduction. Prev Vet Med 2015; 119:203-10. [DOI: 10.1016/j.prevetmed.2015.02.012] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2014] [Revised: 02/12/2015] [Accepted: 02/15/2015] [Indexed: 11/18/2022]
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Oluwayelu DO, Adebiyi AI, Ohore OG. A survey of rabies virus antibodies in confined, hunting and roaming dogs in Ogun and Oyo States, Southwestern Nigeria. ASIAN PACIFIC JOURNAL OF TROPICAL DISEASE 2015. [DOI: 10.1016/s2222-1808(14)60620-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Sparkes J, Körtner G, Ballard G, Fleming PJS, Brown WY. Effects of sex and reproductive state on interactions between free-roaming domestic dogs. PLoS One 2014; 9:e116053. [PMID: 25541983 PMCID: PMC4277450 DOI: 10.1371/journal.pone.0116053] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2014] [Accepted: 12/03/2014] [Indexed: 11/27/2022] Open
Abstract
Free-roaming dogs (Canis familiaris) are common worldwide, often maintaining diseases of domestic pets and wildlife. Management of these dogs is difficult and often involves capture, treatment, neutering and release. Information on the effects of sex and reproductive state on intraspecific contacts and disease transmission is currently lacking, but is vital to improving strategic management of their populations. We assessed the effects of sex and reproductive state on short-term activity patterns and contact rates of free-roaming dogs living in an Australian Indigenous community. Population, social group sizes and rates of contact were estimated from structured observations along walked transects. Simultaneously, GPS telemetry collars were used to track dogs' movements and to quantify the frequency of contacts between individual animals. We estimated that the community's dog population was 326±52, with only 9.8±2.5% confined to a house yard. Short-term activity ranges of dogs varied from 9.2 to 133.7 ha, with males ranging over significantly larger areas than females. Contacts between two or more dogs occurred frequently, with entire females and neutered males accumulating significantly more contacts than spayed females or entire males. This indicates that sex and reproductive status are potentially important to epidemiology, but the effect of these differential contact rates on disease transmission requires further investigation. The observed combination of unrestrained dogs and high contact rates suggest that contagious disease would likely spread rapidly through the population. Pro-active management of dog populations and targeted education programs could help reduce the risks associated with disease spread.
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Affiliation(s)
- Jessica Sparkes
- School of Environmental and Rural Sciences, University of New England, Armidale, Australia
- Vertebrate Pest Research Unit, Biosecurity New South Wales, Armidale, Australia
- Invasive Animals Cooperative Research Centre, Armidale, Australia
- * E-mail:
| | - Gerhard Körtner
- School of Environmental and Rural Sciences, University of New England, Armidale, Australia
- Vertebrate Pest Research Unit, Biosecurity New South Wales, Armidale, Australia
- Invasive Animals Cooperative Research Centre, Armidale, Australia
| | - Guy Ballard
- School of Environmental and Rural Sciences, University of New England, Armidale, Australia
- Vertebrate Pest Research Unit, Biosecurity New South Wales, Armidale, Australia
- Invasive Animals Cooperative Research Centre, Armidale, Australia
| | - Peter J. S. Fleming
- School of Environmental and Rural Sciences, University of New England, Armidale, Australia
- Vertebrate Pest Research Unit, Biosecurity New South Wales, Orange, Australia
- Invasive Animals Cooperative Research Centre, Armidale, Australia
| | - Wendy Y. Brown
- School of Environmental and Rural Sciences, University of New England, Armidale, Australia
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Tourists' Perceptions of the Free-Roaming Dog Population in Samoa. Animals (Basel) 2014; 4:599-611. [PMID: 26479002 PMCID: PMC4494425 DOI: 10.3390/ani4040599] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2014] [Revised: 09/08/2014] [Accepted: 09/12/2014] [Indexed: 11/17/2022] Open
Abstract
Simple Summary For travelers, the way in which people in other nations interact with animals may be different to that in their home nation. This research explores how the treatment of dogs impacted upon the holiday experiences of tourists visiting a developing island nation. In general, and where tourists encountered dogs, their treatment was perceived as less positive than in their home country and had a negative impact upon the holiday experience. Although it is important to recognize that the local population will have a different worldview, tourists felt that the dog population required more effective management and were most supportive of techniques that were non-lethal and humane. Abstract A study was undertaken to establish how visiting tourists to Samoa perceived free-roaming dogs (Canis familiaris) and their management, additionally some factors that influence their perceptions were assessed. Questionnaires were administered to 281 tourists across Samoa over 5 weeks. Free-roaming dogs were seen by 98.2% (n = 269/274) of respondents, with 64.9% (n = 137/211) reporting that their presence had a negative effect on overall holiday experience. Respondents staying in the Apia (capital city) area were more likely to consider dogs a problem (p < 0.0001), and there was a significant association between whether the respondent owned a dog and if they thought dogs were a nuisance in Samoa (p < 0.003). Forty-four percent (20/89) of non-dog owners agreed that dogs were a nuisance compared to 22% (80/182) of dog owners. The majority felt that dogs required better control and management in Samoa (81%, n = 222) and that there were too many “stray” dogs (67.9%, n = 188). More respondents were negatively affected by the dogs’ presence (64.9%, 137/211), and felt that the dogs made their holiday worse, than respondents that felt the dogs’ presence improved their holiday experience (35.1%, 74/211). Most respondents stated that the dogs had a low impact (one to three; 68%, 187/275) on their stay in Samoa, whilst 24% (65/275) and 8% (23/275) stated they had a medium or high impact, respectively, on their stay. Respondents showed strong support for humane population management. Free-roaming dogs present a complex problem for Samoa and for its tourism industry in particular. The findings of this study further support the need for more discussion and action about the provision of veterinary services and population management for dogs in Samoa. It also provides information complementing an earlier study of the attitudes of local Samoans.
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Hambolu SE, Dzikwi AA, Kwaga JKP, Kazeem HM, Umoh JU, Hambolu DA. Dog ecology and population studies in Lagos State, Nigeria. Glob J Health Sci 2014; 6:209-20. [PMID: 24576383 PMCID: PMC4825384 DOI: 10.5539/gjhs.v6n2p209] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2013] [Revised: 11/04/2013] [Accepted: 02/14/2014] [Indexed: 11/17/2022] Open
Abstract
Dog population dynamics have a major impact upon the effectiveness of rabies control strategies. As such, understanding domestic dog ecology has been recognized as central to the design of effective rabies control programmes. This study was conducted to determine the dog ecology in Lagos State using compound dog count and street dog count in the three senatorial districts (Lagos West, East and Central) of Lagos State from February, 2011 to January, 2012. A total of 546 questionnaires were distributed for the compound dog count and all were completed and returned. Various aspects of dog ecology were determined, including size, sex, breed of the dog population, management of dogs and rabies awareness among the respondents. Out of the 546 compounds surveyed, 518 (94.87%) owned at least one dog. A total of 1,427 dogs were counted from the street counts while a total of 1,447 dogs (2.8 dogs/compound) were counted from the compound count. The dogs comprised of 583 males and 864 females, out of which 64.10% are confined. The dog vaccination coverage in the dog population surveyed was 64.10% and administered majorly (91.30%) by veterinarians. Security (60%) and pets (26%) were the major reasons for keeping dogs. Majority (88.80%) of the respondents were aware of rabies and its mode of transmission, but still believed in the use of concoctions (40.40%), herbs (19.90%) and consumption of the organ of the offending dog (11.50%) for the treatment of rabies. The findings of this study showed a male: female ratio of dog to be 1:1.5 and a dog: human ratio of 1:5.6. There was also a responsible dog ownership as majority of the respondents do confine, vaccinate and provide food for their dogs. Vaccination coverage of the total dog population was however below the 70-80% target recommended by the World Health Organization to achieve herd immunity.
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Affiliation(s)
- Sunday Emmanuel Hambolu
- Department of Veterinary Public Health and Preventive Medicine, Faculty of Veterinary Medicine, Ahmadu Bello University Zaria.
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Høgåsen H, Er C, Di Nardo A, Dalla Villa P. Free-roaming dog populations: A cost-benefit model for different management options, applied to Abruzzo, Italy. Prev Vet Med 2013; 112:401-13. [DOI: 10.1016/j.prevetmed.2013.07.010] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2012] [Revised: 07/08/2013] [Accepted: 07/14/2013] [Indexed: 10/26/2022]
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Uspensky I. Tick pests and vectors (Acari: Ixodoidea) in European towns: Introduction, persistence and management. Ticks Tick Borne Dis 2013; 5:41-7. [PMID: 24183576 DOI: 10.1016/j.ttbdis.2013.07.011] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2013] [Revised: 06/13/2013] [Accepted: 07/03/2013] [Indexed: 11/16/2022]
Abstract
Ticks have always been a part of fauna in and around human settlements, and their significance changed concurrently with the enlargement of settlements and their transformation into towns. The increased rate of urbanization during the last decades has created a new reality for tick existence. Two groups of ticks are of major concern for modern towns: those living under natural conditions of urban surroundings and those well-adapted to urban conditions. During the process of urbanization, encroachment into forested and uncultivated areas as well as protection of existing green spaces create opportunities for ticks living in nature to also exist under urban and suburban conditions. Conditions of modern urban and especially suburban environment in developed European countries adequately meet tick requirements. Tick species having an advantage in urban areas are those that can use one and the same host at all parasitic stages, can starve for a prolonged time, can use either urban pests or domesticated animals as hosts, and can live in man-made buildings. The ticks of the Argas reflexus group (Argasidae) and the brown dog tick Rhipicephalus sanguineus (Ixodidae) comply with practically all conditions necessary for successful survival in urban areas. The ability of ticks to transmit numerous human and animal pathogens and the presence of many reservoir hosts in urban and suburban areas create persistent danger for human populations and domestic animals. Impact on urban ticks should be directed against the two major requirements of tick existence: reducing populations of potential tick hosts (feral pigeons, stray dogs and cats, and urban rodents), and changing other environmental conditions to make them less suitable for ticks. It is especially important that urban inhabitants be properly informed about the danger posed by ticks, the sites of possible tick attacks, and basic self-protection techniques.
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Affiliation(s)
- Igor Uspensky
- A. Silberman Institute of Life Sciences, The Hebrew University of Jerusalem, Jerusalem 91904, Israel.
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Gosling L, Stavisky J, Dean R. What is a feral cat?: Variation in definitions may be associated with different management strategies. J Feline Med Surg 2013; 15:759-64. [PMID: 23966002 PMCID: PMC11110973 DOI: 10.1177/1098612x13481034] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
STUDY RATIONALE The definition of a true feral cat is an area of much contention, with many variations used worldwide. In this study, opinions were gathered from feral cat rescue workers and veterinary surgeons working in the United Kingdom to identify a practical definition of a feral cat, suitable for use in the field, education and research. PROTOCOL A mixed methods approach, using questionnaires and focus groups, was used to collect data from feral cat workers and veterinary surgeons. FINDINGS Conflicts in opinion on the implications of taming feral cats exist. The rescue workers typically felt that most cats could be tamed, whereas the veterinary surgeons felt this was generally inappropriate, except in the case of young kittens. A consistent definition of feral cats would enable better communication regarding the welfare and management of these animals, and would be useful for further research and education of the public. PROPOSED DEFINITION: A feral cat is proposed by this study to be a cat that is unapproachable in its free-roaming environment and is capable of surviving with or without direct human intervention, and may additionally show fearful or defensive behaviour on human contact.
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Affiliation(s)
- Lara Gosling
- University of Nottingham School of Veterinary Medicine and Science, Sutton Bonington Campus, College Road, Leicestershire, LE12 5RD, UK
| | - Jenny Stavisky
- University of Nottingham School of Veterinary Medicine and Science, Sutton Bonington Campus, College Road, Leicestershire, LE12 5RD, UK
| | - Rachel Dean
- University of Nottingham School of Veterinary Medicine and Science, Sutton Bonington Campus, College Road, Leicestershire, LE12 5RD, UK
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Cantó GJ, Guerrero RI, Olvera-Ramírez AM, Milián F, Mosqueda J, Aguilar-Tipacamú G. Prevalence of fleas and gastrointestinal parasites in free-roaming cats in central Mexico. PLoS One 2013; 8:e60744. [PMID: 23573282 PMCID: PMC3616013 DOI: 10.1371/journal.pone.0060744] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2012] [Accepted: 03/03/2013] [Indexed: 11/18/2022] Open
Abstract
The prevalence of fleas and gastrointestinal parasites in free-roaming and domestic cats in central Mexico was evaluated. Three hundred and fifty eight cats captured in the street or brought in by owners to the Animal Control Center Unit, a unit of State Government, from June 2010 to May 2011, were included in the study. All cats were examined for the presence of fleas and gastrointestinal worms. One-hundred and ninety (53%) cats were infested with at least one flea species. Single infestations were observed in 106 (30%) cats and mixed infestations in 84 (23%) cats. Four species of fleas were recovered: Ctenocephalides felis in 53% of the cats, C. canis in 18%, Echidnophaga gallinacea in 7% and Pulex irritans in 1%. One-hundred and sixty three (45%) cats were infected with one or more species of gastrointestinal parasites: 48 (13%) with nematodes, 145 (40%) with cestodes, and one animal presented Moniliformis moniliformis. Prevalences and mean intensity of infection were: Physaloptera praeputialis 7 and 18; T. cati 3 and 2; Ancylostoma tubaeforme 2.5 and 2; Toxascaris leonina 0.5 and 2; Dipylidium caninum 36 and 32; Taenia taeniformis 4 and 3 and Moniliformis moniliformis 0.3 and 106, respectively. There was significant association (P<0.01), between season and ectoparasites load, more fleas were obtained in the summer and autumn than in the winter and spring; however, no statistical difference was observed for endoparasites load (P>0.05). The correlation between the total number of ectoparasites and endoparasites was not significant (r = 0.089, P = 0.094).
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Affiliation(s)
- Germinal J Cantó
- Facultad de Ciencias Naturales, Universidad Autónoma de Querétaro, Cuerpo Académico Salud Animal y Microbiología Ambiental, Queretaro, Qro, México.
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Alberthsen C, Rand JS, Bennett PC, Paterson M, Lawrie M, Morton JM. Cat admissions to RSPCA shelters in Queensland, Australia: description of cats and risk factors for euthanasia after entry. Aust Vet J 2013; 91:35-42. [DOI: 10.1111/avj.12013] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/31/2012] [Indexed: 12/01/2022]
Affiliation(s)
- C Alberthsen
- The Centre for Companion Animal Health, School of Veterinary Science; The University of Queensland; St Lucia; Queensland; Australia
| | - JS Rand
- The Centre for Companion Animal Health, School of Veterinary Science; The University of Queensland; St Lucia; Queensland; Australia
| | - PC Bennett
- School of Psychological Science; La Trobe University; Bendigo; Victoria; Australia
| | - M Paterson
- RSPCA; Wacol Animal Care Campus; Queensland; Australia
| | - M Lawrie
- Australian Veterinary Association; Sydney; New South Wales; Australia
| | - JM Morton
- Jemora Pty Ltd; Geelong; Victoria; Australia
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Dias RA, Guilloux AGA, Borba MR, Guarnieri MCDL, Prist R, Ferreira F, Amaku M, Neto JSF, Stevenson M. Size and spatial distribution of stray dog population in the University of São Paulo campus, Brazil. Prev Vet Med 2012; 110:263-73. [PMID: 23273378 DOI: 10.1016/j.prevetmed.2012.12.002] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2012] [Revised: 11/23/2012] [Accepted: 12/01/2012] [Indexed: 10/27/2022]
Abstract
A longitudinal study was carried out to describe the size and spatial distribution of the stray dog population in the University of São Paulo campus, Brazil from November 2010 to November 2011. The campus is located within the urban area of São Paulo, the largest city of Brazil, with a population over 11 million. The 4.2 km(2) that comprise the university grounds are walled, with 10 access gates, allowing stray dogs to move in and out freely. Over 100,000 people and 50,000 vehicles circulate in the campus daily. Five observations were made during the study period, using a mark-resight method. The same route was performed in all observations, being traveled twice on each observation day. Observed animals were photographed and the sight coordinates were obtained using a GPS device. The estimated size of the stray dog population varied from 32 (CI 95% 23-56) to 56 (CI 95% 45-77) individuals. Differences between in- and outward dog movements influenced dog population estimates. Overlapping home ranges of docile dogs were observed in areas where most people circulate. An elusive group was observed close to a protected rain forest area and the estimated home range for this group did not overlap with the home ranges for other dogs within the campus. A kernel density map showed that higher densities of stray dog sighting is associated with large organic matter generators, such as university restaurants. We conclude that the preferred source of food of the stray dogs on the University of São Paulo campus was leftover food deliberately offered by restaurant users. The population was stable during the study period and the constant source of food was the main reason to retain this population within the campus.
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Affiliation(s)
- Ricardo Augusto Dias
- Departamento de Medicina Veterinária Preventiva e Saúde Animal, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, Av. Prof. Dr. Orlando Marques Paiva, 87, São Paulo 05508-270, SP, Brazil.
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O’Sullivan EN, Hanlon AJ. A review of official data obtained from dog control records generated by the dog control service of county cork, Ireland during 2007. Ir Vet J 2012; 65:10. [PMID: 22681751 PMCID: PMC3489852 DOI: 10.1186/2046-0481-65-10] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2011] [Accepted: 05/11/2012] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND There are no peer reviewed data on dog control records from an official agency in Ireland. In order to address this, a total of 2,669 official dog control service records generated during 2007 by Cork County Council dog control service were reviewed. RESULTS Over 70 percent of records related to unwanted dogs and dogs not under their owners control. Stray dogs were collected by the service regularly throughout the year but with notable increase in voluntary surrenders by owners from January through to April. The majority of dogs collected or surrendered were male (2:1 ratio), of medium size, described as having a friendly temperament and were not wearing a neck collar. The Crossbreed and Greyhound breeds were more frequently collected as strays, while Greyhounds and German Shepherds were more frequently voluntarily surrendered by their owner. Restricted breeds such as Pit Bull terriers, German Shepherds and Rottweilers were more frequently reported by members of the public for aggressive behaviour while the only restricted breed reported for biting or snapping was the German Shepherd. CONCLUSIONS Routine recording of dog control services in County Cork provide data on responsible dog ownership including the licensing of breeds, and surrender of owned dogs and the collection of stray dogs. Data capture and utilisation of dog control services by local authorities has potential to inform policy on responsible dog ownership and education programmes.
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Affiliation(s)
| | - Alison J Hanlon
- School of Veterinary Medicine, University College Dublin, Belfield, Dublin 4, Ireland
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