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1.
Vet Rec Open ; 10(2): e66, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37614914

RESUMO

Background: Tail inspection in the abattoir is a tool to help determine the welfare status of pigs. However, methodologies vary widely. Moreover, meat inspection is moving from palpation and incision towards visual-only (VIS) examination. This study investigated whether a VIS examination was sufficient to detect tail damage compared to handling (HAND), which ensures examination of all aspects of the tail. Method: The severity of tail skin damage (0 [undamaged] - 4 [partial/full loss of tail]) and presence/absence of bruises was scored using both methods after scalding/dehairing of 5498 pig carcasses. Results: There was a good relationship between methods when evaluating tail skin damage (sensitivity, 82.48%; specificity, 99.98%; accuracy, 98.98%; correlation ρ = 0.84). The results were similar for the presence of bruises (sensitivity, 74.98%; specificity, 99.09%; accuracy, 89.94%; correlation ρ = 0.79). However, the percentage of tails classified as undamaged was higher using VIS (69.9%) than HAND (63.55%) examination. Conversely, VIS detected fewer mild lesions (score 1 - 13.64%; score 2 - 11.73%) than HAND (score 1 - 15.21%; score 2 - 15.53%). A higher percentage of bruises was detected using HAND than VIS (37.96% vs. 29.03%). Conclusions: Visual evaluation is a valid alternative to handling evaluation of carcass tail damage and bruising.

2.
Front Vet Sci ; 10: 1073401, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36908525

RESUMO

This work compared the behavior and performance of 24 groups of 12 pigs kept in pens with either a DOUBLE [one feed space aligned with the front wall of the pen (WALL), and one immediately adjacent (IN)] or SINGLE (WALL only) spaced feeder, from weaning until slaughter. Pens were equipped with a rack of fresh grass and a rubber toy (weaning phase) or a wooden board (finishing phase). Every 2 weeks, interaction with the enrichment, aggressive, harmful, and play behaviors were recorded for 5 min, four times a day. In addition, the pigs were individually assessed every 2 weeks for ear, tail, and flank injuries using a 4-point scale. The duration of feeder occupancy, feed space occupancy, number of and duration of feeding bouts, and aggressive behavior at the feeder were recorded continuously from video recordings (two times while in the weaner stage and two times while in the finisher stage, one camera/pen; 1 h per occasion). Individual body weight was recorded at weaning, transfer, and slaughter, and feed delivery was recorded daily at the pen level; from these measurements, average daily gain, feed intake, and feed conversion ratio were calculated. Data were analyzed using SAS v9.4. There was no effect of treatment on damaging behaviors. Pigs in DOUBLE had worse tail lesion scores on 6 of the 9 recording days (P < 0.001), but values rarely exceeded 1. Total feeder occupancy tended to be longer in DOUBLE than in SINGLE (P = 0.06). DOUBLE selected the IN feed space more often than WALL regarding the number of feeding bouts (P < 0.001). During feeding, pigs in DOUBLE received fewer aggressive behaviors than SINGLE (P < 0.001) and experienced fewer displacements than SINGLE (P < 0.001). Although both experimental groups had a similar weight at slaughter (P > 0.05), the FCR was lower in DOUBLE than in SINGLE (P < 0.05). These data suggest that doubling space at the feeder to two spaces/12 pigs reduced aggression and displacement behaviors at the feeder, indicating less competition for food. However, increasing feeder space was not a management strategy that could ensure reduced tail biting on commercial pig farms.

3.
Animals (Basel) ; 13(3)2023 Jan 28.
Artigo em Inglês | MEDLINE | ID: mdl-36766340

RESUMO

Four management options for acutely injured cattle in Ireland exist: treatment, unless cattle are severely injured; on-farm emergency slaughter (OFES); casualty slaughter (CS) if the animal is certified fit for transport; or euthanasia. OFES is designed to prevent transport of welfare-compromised cattle. An online survey of farmers in Ireland was carried out between April and July 2021 and focused on events during 2020. A theoretical framework of capacity, willingness, and opportunity was used to explore farmers' perceptions. Responses from 94 farmers (49 dairy and 45 beef) were analysed; not all respondents answered all questions. Respondents indicated that the incidence of acutely injured cattle in Ireland is low. A majority reported not having an acutely injured animal for greater than 36 months. Most respondents had a positive attitude towards OFES for animal welfare reasons and were aware of relevant regulations and guidelines. Barriers to OFES included a lack of availability of OFES, and dairy farmers indicated that it had a similar financial impact as euthanasia. A parallel study with veterinarians indicated a higher incidence of acutely injured cattle in Ireland; the current results may be due to the demographic or the sensitivity of the topic. Nationwide electronic data capture on the cause of mortality could support improvements in the management of acutely injured cattle and enable surveillance of the proportion of these cattle undergoing OFES, euthanasia, or CS.

4.
Equine Vet J ; 55(2): 270-281, 2023 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-35575027

RESUMO

BACKGROUND: As the primary decision-maker for their horse's health and welfare, owners' knowledge of clinical conditions may impact their horse's health. Anecdotal evidence suggests that the emotional impact of equine illness on the owner can be severe but research is lacking. OBJECTIVES: To evaluate horse owners' self-declared knowledge of eight common equine health conditions and perceptions of the quality of information available; to ascertain respondents' perceptions of the severity of impact on their horse of the conditions and potential emotional impact on themselves and to establish the factors of greatest concern to owners when their horse has a health condition and influential factors on end-of-life decisions. STUDY DESIGN: Online survey of horse owners. METHODS: An online survey comprising three sections was created: respondent demographics; vignettes of clinical conditions; concerns and decision-making regarding illness and euthanasia. Vignettes focused on arthritis; Pars Pituitary Intermedia Dysfunction; Equine Metabolic Syndrome (EMS); gastric ulcers; high intestinal worm burden; dermatophilosis ('mud rash'); quidding and head tossing; and equine asthma. Respondents were self-selecting. The survey was circulated for completion by horse owners residing in Ireland and Northern Ireland obtaining 491 valid responses. RESULTS: Respondents declared that they had the highest knowledge of mud rash, with 84.1% rating their knowledge as very good compared to 42% of respondents for EMS. There was positive correlation between the perceived impact on their horse and emotional impact on the owner for all conditions ranging from weak (arthritis 0.36, P < 0.001) to strong (EMS 0.62, P < 0.001). Pain, discomfort, and quality of life were reported as the most common concerns when their horse has a medical condition or when considering euthanasia. MAIN LIMITATIONS: Potential bias among respondents towards computer literate owners, with good literacy and interest in equine health conditions. CONCLUSIONS: Knowledge of equine health conditions, perceived impact of conditions on the horse and emotional impact on their owners varied significantly between conditions.


Assuntos
Artrite , Exantema , Doenças dos Cavalos , Síndrome Metabólica , Cavalos , Animais , Qualidade de Vida , Doenças dos Cavalos/epidemiologia , Inquéritos e Questionários , Exantema/veterinária , Síndrome Metabólica/veterinária , Artrite/veterinária
6.
Front Vet Sci ; 9: 976595, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36439360

RESUMO

Background: Fitness to transport is a key provision in animal welfare regulations in the European Union, and for the management of acutely injured cattle. Whilst treatment may be appropriate for some injuries, three common production outcomes for acutely injured cattle are; on farm emergency slaughter (OFES), casualty slaughter (CS) or euthanasia. The aims of this study were to evaluate the perceptions of veterinarians, working in Ireland, on the use of OFES for the management of acutely injured cattle and to evaluate the influence of capacity, willingness and opportunity on their ability to operate OFES. Methodology: Two online surveys of veterinarians working in Ireland, Private Veterinary Practitioners (PVPs) and Official Veterinarians (OVs), were conducted through QualtricsXM over a 7-week period between April and June of 2021. Quantitative and qualitative questions were developed and analyzed using the tripartite framework of capacity, willingness, and opportunity to collect relevant data about the management of acutely injured cattle and the provision of OFES in Ireland by veterinarians. Results: 43 OVs and 85 PVPs participated in the survey. OVs regulated on average 4.2 abattoirs, of which 21.6% accepted OFES. Participants reported 343 and 377 OFES and CS, respectively, in 2020. 62.4% PVPs had not certified cattle for OFES, or CS. Limb fracture accounted for 79% OFES, 34.5% CS and 47.9% euthanized acutely injured cattle. 63.3% OVs and 44% PVPs were not aware of abattoirs providing OFES within 100 km of their workplace. Lack of availability of OFES negatively associated with PVP knowledge of the procedure. Regulations and guidelines were the most common source of information on OFES for PVPs. Conclusion: Increasing the availability of OFES may help to improve the management of acutely injured cattle, especially those with limb fractures that are unfit for transport.

7.
Animals (Basel) ; 12(2)2022 Jan 13.
Artigo em Inglês | MEDLINE | ID: mdl-35049808

RESUMO

There has been increased public interest and concerns in issues such as farm animal welfare (FAW) on the island of Ireland, stoked in part by political and governance changes, such as Brexit and COVID-19. Front-of-pack food labelling represents a primary information channel for many people. In advance of considering formalised food labelling schemes, specifically relating to FAW, it is important to ensure an up-to-date understanding of current consumer perceptions of FAW. With this aim, the current study utilised a mixed methodology. Nine focus group discussions (n = 41) and an online survey (n = 972) with food consumers in Ireland and Northern Ireland explored perceptions of FAW. Results suggest that overall perceptions of FAW are high, and consumers perceive FAW to have improved in the last decade. Quantitative (ANOVA) and qualitative results show variations in perception of FAW between sectors. Results from the focus group discussions identified factors underlying consumers' perception of FAW: the living conditions of the animal, size and intensity of the farm, national standards and schemes, and visibility. Information insufficiencies and knowledge gaps were identified. The findings are discussed in relation to policy implications for the role of public engagement, front-of-pack welfare labelling, and quality assurance schemes.

8.
Ir Vet J ; 75(1): 1, 2022 Jan 05.
Artigo em Inglês | MEDLINE | ID: mdl-34986879

RESUMO

BACKGROUND: Legislation pertaining to canine ownership in Ireland maintains a one-health perspective by establishing a minimum standard of care for dogs while safeguarding human health and wellbeing. However, public awareness of this legislation has not been measured. The goals of this study were first, to estimate and compare the level of awareness, among dog owners and non-dog owners, that eight responsibilities of dog owners are prescribed by law in Ireland. Second, to determine if gender modifies differences in awareness between owners and non-owners, and third to determine whether gender itself is independently associated with awareness of the legal specification of these dog ownership responsibilities. RESULTS: We conducted a cross-sectional study of 679 University College Dublin employees. Exposure information included participants' dog ownership status, gender, age, and education level. Among dog owners and non-dog owners, we estimated and compared the prevalences of persons with self-reported awareness that each of eight dog ownership responsibilities are prescribed by law in Ireland: Dog fouling in a public place, the leashing and muzzling of certain breeds, holding a dog license, straying of dogs, safeguarding health and welfare of dogs, dog abandonment, prohibition on tail docking of puppies and the mandatory wearing of identification. The prevalence of awareness was low among both dog owners and non-dog owners with substantial awareness (≥ 80%) of only three responsibilities: Those pertaining to fouling, licensing and muzzling and leashing. Awareness that more than one responsibility was specified by law was also poor with only 17.9% (95% CI: 15.1-20.9%) of participants aware of all eight and dog owners essentially just as likely (54%; 95% CI: 49-58%) to be aware of more than one as non-dog owners. For most dog ownership responsibilities, differences in prevalence (PD) of awareness between owners and non-owners and females and males were trivial (PD < 10%). Similarly for most responsibilities, gender did not modify awareness PDs between owners and non-owners. CONCLUSIONS: In this well-educated university community, self-reported awareness that these eight responsibilities of dog owners are prescribed by law in Ireland is poor with essentially no difference between dog owners and non-dog owners or males and females. Awareness was higher for those responsibilities which, when not discharged, result in direct negative consequences to humans compared to those that result in direct negative consequences to dogs. It is likely that awareness of the legal status of these eight responsibilities of dog owners among the general public in Ireland is even less than observed in this study.

9.
Ir Vet J ; 74(1): 14, 2021 May 26.
Artigo em Inglês | MEDLINE | ID: mdl-34039429

RESUMO

BACKGROUND: There has been increasing concern expressed about the welfare of exotic pets worldwide. For the purposes of this article, an exotic pet is considered to be a non-domesticated species, where there are knowledge gaps on good practice (minimum standards of care), veterinary diagnostics and treatments. The categories of exotic pets included in this study were: small mammals (< 20 kg), large mammals (> 20 kg), birds, reptiles, amphibians, fish and invertebrates. Dogs, cats, rabbits, hamsters, gerbils, guinea pigs, mice, rats, and ferrets were excluded from the study. An online survey of pet owning staff at University College Dublin was conducted between July and August 2020 to provide the first empirical data for Ireland. In this pilot study (the first in this thematic series) we aim to characterise exotic pet ownership, the challenges and benefits of keeping exotic pets, and access to veterinary services from the pet owner's perspective. RESULTS: Using an online survey this pilot study gathered evidence from 83 domestic and 32 exotic pet owners within the staff (n = ~ 3600 FTE) at University College Dublin, the largest third level institution in Ireland. The prevalence of exotic pet ownership was determined to be 34.4 % of households with more than 10 % of pet owning households owning only exotic pets. Fish (n = 15), reptiles (n = 13) and birds (n = 8) were the most common types of exotic pets. Thirty-four per cent of exotic pet owners never sought veterinary services, the most common reasons were due to lack of local veterinary specialists (n = 10) and good owner knowledge (n = 8). However identifying appropriate guidance on the animals' needs was a common challenge for exotic pet owners (n = 13). A reasonable monthly cost of caring for an exotic ranged from €20-180, depending on the species. CONCLUSIONS: This pilot study contains important implications for veterinary education to support the veterinary community with providing services to the exotic pet owning community. Policy issues with exotic pet ownership also need to be considered and further research into the proposed strategies to support the health and welfare of exotic pets should be carried out such as the introduction of white lists and guidelines on responsible pet ownership.

10.
Ir Vet J ; 74(1): 13, 2021 May 04.
Artigo em Inglês | MEDLINE | ID: mdl-33947452

RESUMO

BACKGROUND: There has been increasing concern expressed about the welfare of exotic pets worldwide. For the purposes of this article, an exotic pet is considered to be a non-domesticated species, where there are knowledge gaps on good practice (minimum standards of care), veterinary diagnostics and treatments. The categories of exotic pets included in this study were: small mammals (< 20 kg), large mammals (> 20 kg), birds, reptiles, amphibians, fish and invertebrates. Dogs, cats, rabbits, hamsters, gerbils, guinea pigs, mice, rats, and ferrets were excluded from the study. An online survey of veterinary professionals conducted between July and August 2020 provides the first empirical data for Ireland. In this pilot study (the second in this thematic series) we aim to characterise the provision of veterinary services to exotic pets from the veterinary professionals' perspective, explore the main concerns of veterinary professionals towards exotic pet ownership, and their recommendations to support responsible exotic pet ownership. RESULTS: Using an online survey this pilot study gathered evidence from 63 veterinary professionals currently working in private practice in Ireland. The prevalence of veterinary services for exotic pets in Ireland was determined to be 82% of small and mixed animal clinics of respondents' practices ranging from 9.1 to 100% for different categories of exotic pets. The most common issues encountered in practice with exotic pets were related to nutrition, environment, and behaviour followed by clinical diseases such as respiratory, infectious, and gastrointestinal issues. The most common concerns veterinary professionals had with exotic pet ownership related to the lack of owner knowledge as well as the lack of veterinary knowledge and accessible resources. The most common strategic initiatives indicated by veterinary professionals included black or white lists (to prohibit and permit the keeping of exotic pet species respectively), licensing for owners and increased availability of CPD for veterinary professionals. CONCLUSIONS: More than four in every five veterinary professionals in small or mixed animal practices surveyed were willing to treat exotic pets and in many cases they already were. A scaffold for best practice is required to support the health and welfare of exotic pets and responsible ownership. Keystones include veterinary education to support veterinary professionals with daily practice, establishing a white list of exotic species that are suitable as pets, registration at the point of purchase to enable traceability for biosecurity purposes and research to identify care standards to support the health and welfare of exotic pets.

11.
Front Vet Sci ; 8: 795227, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-35141307

RESUMO

BACKGROUND: In July 2009, the Farm Animal Welfare Advisory Council (FAWAC) in the Republic of Ireland published Animal Welfare Guidelines for the Management of Acutely Injured Animals on Farm in support of a new Irish regulation designed to permit on-farm emergency slaughter (OFES) of cattle. The purpose of this study was to evaluate the FAWAC guidelines, to determine if they remain fit for purpose by comparing them with five guidelines on the management of acutely injured cattle from four jurisdictions purposively selected because of their relevance to OFES, and to represent geographical and organisational diversity; The United Kingdom, Australia, New Zealand and British Columbia/Canada. METHODOLOGY: Content and Thematic Analysis were used to compare the incidence and frequency of themes in the six guidelines using NVIVO 12. RESULTS: Humane killing and slaughter of animals and the prevention of unnecessary suffering at time of killing were emphasised in all guidelines. Thematic Analysis identified seven primary themes ("parent nodes"): animal welfare; decision tree; certification; legislation; stakeholders; transport and; veterinary ethics. Parent nodes encompassed 26 secondary themes ("child nodes") including casualty slaughter, on-farm emergency slaughter, euthanasia, unnecessary suffering, animal owner, private veterinary practitioner, official veterinarian and fitness for transport. Guidelines outlined stakeholders' roles in relation to all aspects of managing acutely injured cattle. Results showed similarities between FAWAC, the British Cattle Veterinary Association and the British Columbian/Canadian guidelines in relation to OFES as a method to address acutely injured cattle. OFES is not allowed in Australia or New Zealand as a method of managing acutely injured cattle. CONCLUSIONS: Animal welfare guidelines play a pivotal role in informing all stakeholders involved in the management of acutely injured cattle. Guidelines vary from prescriptive standard operating procedures on actions that should be undertaken for food safety reasons, to descriptive guidance upholding practicalities in relation to equipment and methods to be used in managing acutely injured cattle not meant for human consumption. The FAWAC guidelines remain substantially relevant today and consistent with other welfare guidelines published in the jurisdictions that formed part of the study. However, they need to be reviewed to align with current regulations.

12.
Animals (Basel) ; 10(9)2020 Aug 28.
Artigo em Inglês | MEDLINE | ID: mdl-32872206

RESUMO

Farm animal welfare (FAW) is a growing societal concern, reflected by over 30 years of research to inform policy and practice. Despite the wealth of evidence to improve FAW, implementation of good practice continues to be an issue. The role of the stakeholder, particularly farmers, is pivotal to FAW improvement. This semi-systematic review synthesizes the evidence published in the last 30 years, worldwide, to address two main questions "what do farmers think (farmer's general view) about farm animal welfare?" and "what are the factors that influence their thinking?". A thematic analysis was conducted to identify factors that influenced the implementation of FAW innovation. The main outcomes extracted from 96 peer-reviewed publications on a range of livestock species identified 11 internal factors including farmer knowledge, empathy, personality, values, and human-animal bond; 15 external factors including economic advantages, communication, time and labor influenced the perception of FAW. Farmers' knowledge and cost implications of FAW were the most frequently reported factors. The review further highlights the need for promoting interdisciplinary collaboration and stakeholder participation. This study suggests strategies to improve FAW, including tools to support behavioral changes amongst farmers.

13.
Front Vet Sci ; 7: 623128, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-33659286

RESUMO

The production of surplus male offspring illustrates a socioethical concern in the dairy industry. In this article, we highlight the animal health and welfare implications of production outputs for surplus dairy calves, namely veal production, dairy calf to beef production, and euthanasia. Moreover, we present a pilot study focus on exploring the perception of key industry actors within the dairy industry in Ireland regarding the use of sexed semen as a mitigation strategy to reduce the production of surplus male dairy calves. A pilot survey was completed by farmers (n = 6), veterinarians (n = 17), and dairy farm advisors (n = 11). All the veterinarians, 80% of the farmers, and 62% of the advisors believed that the use of sexed semen had a positive influence on herd welfare. All participants identified the same barriers to the implementation of sexed semen: lower conception rate, lower availability, and higher cost. The reviewed literature highlights the importance of tailored communication to support knowledge exchange between stakeholders and key industry actors such as dairy farmers, their veterinarians, and advisors. Research to understand stakeholders' perception is pivotal to address socioethical concerns such as the surplus male dairy calves.

14.
Animals (Basel) ; 9(12)2019 Dec 10.
Artigo em Inglês | MEDLINE | ID: mdl-31835608

RESUMO

Veterinary behavioural medicine (VBM) is an integral aspect of veterinary practice. However, Golden and Hanlon (Ir. Vet. J. 71:12, 2018) found that the majority of professionals surveyed felt they had received inadequate VBM education and were commonly asked to give advice on feline behavioural problems. The purpose of this study was to explore understanding of feline VBM and the availability of "cat friendly" provisions in clinical practice in Ireland. An online survey comprised 21 questions on professional role and experience, vignettes of common feline behavioural problems, and "cat friendly" practice management. Using a Likert Scale, participants were requested to score whether the advice depicted in vignettes supported best outcome based on the definition by Shalvey et al. (Ir. Vet. J. 72:1, 2019). The survey was distributed via professional organisations, social media, and at the University College Dublin Hospital Conference. Forty-two veterinary practitioners (VPs) and 53 veterinary nurses (VNs) completed the survey. The majority of veterinary professionals agreed with our classification of best outcome, but some areas of disagreement and uncertainty were identified. In addition, there were significant differences between VPs and VNs regarding spraying (p = 0.033), self-mutilation (p = 0.016), and resource-based aggression (p = 0.013). Relatively few "cat friendly" measures were implemented in respondents' clinics. Our findings support the need for increased education in feline VBM, in particular, implementation of cat friendly practice initiatives.

15.
Animals (Basel) ; 9(9)2019 Sep 12.
Artigo em Inglês | MEDLINE | ID: mdl-31547306

RESUMO

EU legislation states that all pigs must have access to material that allows them to perform investigation and manipulation activities, thereby reducing the risk of pigs performing damaging behaviours (e.g., tail, ear and flank biting). We aimed to determine associations between damaging behaviours performed by finisher pigs, the related lesions and the use of different types of enrichment. Six randomly selected pens of finisher pigs were observed for 10 min each on 31 commercial pig farms in Ireland. All pigs were counted and the number of pigs affected by tail, ear and flank lesions was recorded. During the last 5 min, all occurrences of damaging behaviour (tail-, ear- and flank-directed behaviour) were recorded. The type (chain, plastic or wood) and number of accessible enrichment objects/pen was recorded. Chains were the most common (41.4% of farms), followed by plastic (37.9%) and wood (20.7%). Damaging behaviour was more frequent on farms that provided chains compared to plastic or wood. Farms with chains were associated with a higher frequency of flank-directed behaviour and tended to be associated with a higher frequency of tail-directed behaviour compared to farms that provided plastic devices. The prevalence of lesions tended to be higher on farms where chains were provided compared to wooden enrichment devices, mostly driven by a difference in the prevalence of mild tail lesions. Results support expert opinions that despite being commonly used, chains did not fulfill a role in reducing damaging behaviours and associated lesions in finisher pigs compared to other forms of enrichment.

16.
Biomolecules ; 9(8)2019 07 24.
Artigo em Inglês | MEDLINE | ID: mdl-31344923

RESUMO

Elesclomol ((N-malonyl-bis(N'-methyl-N'-thiobenzoylhydrazide)); formerly STA-4783) is a mitochondria-targeted chemotherapeutic agent that has demonstrated efficacy in selective cancer cell killing in pre-clinical and clinical testing. The biologically active form of elesclomol is a deprotonated copper chelate (elesclomol:copper; E:C), which has been shown to enhance reactive oxygen species (ROS) production and induce a transcriptional gene profile characteristic of an oxidative stress response in vitro. Previous studies suggest that E:C interacts with the electron transport chain (ETC) to generate high levels of ROS within the organelle and ultimately induce cell death. The purpose of this study was to further explore the mechanism of cellular and mitochondrial toxicity of E:C by examining its direct effect on mitochondrial bioenergetic function. The results obtained indicate that E:C treatment in whole cells of non-tumorigenic origin at high concentrations (40 M and higher) induces a rapid and substantial increase in mitochondrial superoxide levels and dissipation of mitochondrial membrane potential. Furthermore, similar higher concentrations of E:C act as a direct uncoupler of oxidative phosphorylation and generalized inhibitor of electron transport activity in isolated, intact mitochondria, and induce a dose-dependent inhibition of mitochondrial NADH-ubiquinone oxidoreductase activity in freeze-thawed mitochondrial preparations. The results of this study are important in that they are the first to demonstrate a direct effect of the E:C chelate on bioenergetic function in isolated mammalian mitochondria, and suggest the possibility that the increase in ROS production and cytotoxicity induced by E:C may in part be due to uncoupling of mitochondrial oxidative phosphorylation and/or inhibition of electron transport activity. These results also provide important information about the mechanisms of mitochondrial and cellular toxicity induced by E:C and will ultimately contribute to a better understanding of the therapeutic potential of elesclomol as an anticancer compound.


Assuntos
Metabolismo Energético/efeitos dos fármacos , Hidrazinas/farmacologia , Mitocôndrias/metabolismo , Animais , Linhagem Celular , Chlorocebus aethiops , Relação Dose-Resposta a Droga , Regulação para Baixo , Transporte de Elétrons/efeitos dos fármacos , Complexo I de Transporte de Elétrons/metabolismo , Humanos , Mitocôndrias/efeitos dos fármacos , Fosforilação Oxidativa/efeitos dos fármacos , Espécies Reativas de Oxigênio/metabolismo
17.
Ir Vet J ; 72: 1, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-30949341

RESUMO

BACKGROUND: Companion animal behaviour problems significantly impact companion animal (and owner) welfare. Veterinary behavioural medicine (VBM) is an emerging discipline and aims to provide evidence-based advice to owners and veterinary professionals to support normal behaviour in companion animals through appropriate socialisation and training and to address behaviour problems in a constructive and welfare-friendly manner. The approach to problem behaviours in dogs has changed in recent years; previously a mis-understanding of the biological theory of dominance has been used to explain certain behavioural problems in dogs which has led to the use of punishment-based treatment methods. Current research advocates the benefits of reward-based methods and highlights the risks of implementing positive punishment-based training techniques to both dogs and owners. Golden and Hanlon (Ir Vet J 71: 12, 2018) have reported that veterinary professionals in Ireland are frequently asked to advise on dog behaviour problems. This study aimed to explore veterinary professionals' understanding of training and treatment options for frequently encountered dog behaviour problems, and to help support the development of competences in VBM in Ireland. METHODS: An online survey was developed, including a pre-test evaluation by a pilot group of veterinary professionals, on SurveyMonkey®. The link to the online survey was distributed via third-party professional associations and social media. The survey contained twelve vignettes illustrating advice from veterinary professionals on common behaviour scenarios. Using a Likert Scale, respondents were asked to assess the likelihood of the advice to support best outcome for the dog. Best outcome was defined as one which provides a resolution to the behavioural problem while not compromising the animal's welfare. RESULTS: 84 private veterinary practitioners (PVP) and 133 veterinary nurses (VN) completed the survey. In the majority of vignettes, most veterinary professionals agreed with our classification of best outcome, but several areas of uncertainty were identified. Marked variations in response were found for PVPs in vignettes depicting advice recommending citronella collars, invisible radio fences, trainers utilising dominance language, and another dog for separation anxiety. For VNs, variations in response were found in vignettes depicting dominance-based training and advice on separation anxiety. Significant differences were found in the responses of VNs and PVPs for the vignettes recommending the use of citronella collars (p < 0.01) and invisible radio fences (p < 0.05), where VNs agreed with their recommendation less often than PVPs. PVPs graduating since 2013 agreed with the recommendation of invisible radio fences less often than PVPs graduating before 2013 (p < 0.05). VNs graduating before 2013 agreed with the recommendation of an accredited trainer (p < 0.05) and disagreed with the use of flooding to treat fear (p < 0.05) more often than VNs graduating since 2013. CONCLUSIONS: Our findings have identified specific areas of uncertainty with regards knowledge of positive punishment-based training and the treatment of common dog behaviour problems, highlighted the demand for continuing professional education in VBM and provided further evidence of the need to develop day one competences in VBM for veterinary medicine and nursing programmes at university level.

18.
Ir Vet J ; 71: 12, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29780578

RESUMO

BACKGROUND: Veterinary behaviour medicine should be a foundation subject of the veterinary curriculum because of its wide scope of applications to veterinary practice. Private practitioners are likely to be the primary source of information on animal behaviour for most pet owners, however studies indicate that behavioural issues are not frequently discussed during companion animal consultations and many practitioners lack confidence in dealing with behavioural problems, likely due to poor coverage of this subject in veterinary education.There is a need to identify learning outcomes to support day one competences in veterinary behaviour medicine and these should be informed by practice-based evidence. This study aimed to investigate the nature and frequency of behavioural queries experienced by veterinary professionals in Ireland, the provision of behavioural services at companion animal practices, behaviour referral practices and challenges associated with providing a behaviour service. METHODS: Two online surveys were developed, one for private veterinary practitioners (PVP) and one for veterinary nurses (VN). Invitations to participate were distributed using contact details from the Premises Accreditation Scheme database on the Veterinary Council of Ireland website. Thirty-eight PVPs and 69 VNs completed the survey. RESULTS: Results indicated that less than half of companion animal practices offer behavioural consults and under a third of practices provide training and socialization events. Over half of the practices surveyed have referred cases to a behavioural specialist.The majority of respondents encountered behavioural queries weekly. Ninety-eight percent reported receiving queries regarding dog behaviour. Toilet training and unruly behaviour were two issues encountered frequently. Behavioural issues in cats were also common. House soiling and destructive behaviour were the problems most frequently encountered by respondents.The two most commonly cited barriers to providing behavioural consultations were lack of in-house or personal expertise, and that clients were not willing to pay for these services.Furthermore over half of all veterinary professionals surveyed indicated that they had received inadequate undergraduate training in veterinary behaviour medicine. CONCLUSIONS: Behavioural problems in companion animals can affect the quality of life of pets and their owners. Our survey findings indicate that many veterinary professionals frequently encounter behavioural problems and identify an opportunity for improved provision in behaviour medicine in veterinary education.

19.
Ir Vet J ; 71: 9, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29599967

RESUMO

BACKGROUND: Knowledge on the most prevalent welfare problems for pigs in different production stages is required to improve herd management plans. Thirty-one farrow-to-finish pig farms were visited between July and November 2015 to assess the welfare of pigs using the multicriteria approach of the Welfare Quality® protocol. On each farm, 6 pens were selected using proportionate stratified sampling in the first weaner (S1, 4 to 8 wks), second weaner (S2, 8 to 13 wks) and finisher stage (S3, 13 to 23 wks), excluding hospital pens. Each pen was observed for 10 min and the number of pigs affected by different welfare outcomes was recorded. The percentage of pigs affected was calculated and ranked to identify the most prevalent outcomes within each production stage. Differences between production stages were analysed using generalised linear mixed models for binomial data with pen within stage and farm as a random effect. RESULTS: Tail and ear lesions showed the highest prevalence; however, large variation was observed between farms. In S1 the most prevalent welfare outcomes (presented as median prevalence) were poor body condition (4.4%), lethargic pigs (1.5%), scouring (20.3% of pens) and huddling (3.7%). In S2 and S3 outcomes related to injurious behaviour (tail lesions: 5.9% [S2] and 10.5% [S3], ear lesions: 9.1% [S2] and 3.3% [S3], and flank lesions: 0.4% [S2] and 1.3% [S3]), lameness (0.8% [S2] and 1.1% [S3]), bursitis (3.9% [S2] and 7.5% [S3]) and hernias (1.6% [S2] and 1.8% [S3]) were more prevalent. CONCLUSIONS: A large variation was observed for the recorded welfare outcomes corresponding to the different challenges pigs experience during the different stages of production on commercial pig farms. The prevalence of pigs affected by lesions caused by injurious behavior is a cause for concern and requires a collaborative approach to identify appropriate intervention strategies. This information could be used to further investigate appropriate benchmark values for different welfare outcomes that would assist the pig industry to develop appropriate health and welfare management plans to minimise welfare problems. At herd level such plans should include information on aspects of intervention, treatment, and the management of hospital pens as well as euthanasia.

20.
Genome Announc ; 5(43)2017 Oct 26.
Artigo em Inglês | MEDLINE | ID: mdl-29074662

RESUMO

Seven mycobacteriophages from distinct geographical locations were isolated, using Mycobacterium smegmatis mc2155 as the host, and then purified and sequenced. All of the genomes are related to cluster A mycobacteriophages, BobSwaget and Lokk in subcluster A2; Fred313, KADY, Stagni, and StepMih in subcluster A3; and MyraDee in subcluster A18, the first phage to be assigned to that subcluster.

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