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1.
Front Psychol ; 13: 875221, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36172237

RESUMO

Societal concerns dictate the need for animal welfare standards and legislation. The public and livestock producers often differ on their views of livestock welfare, and failure to meet public expectations may threaten the "social license to operate" increasing the cost of production and hampering the success of the industry. This study examined public and producer attitudes toward common practices and animal welfare issues in the Australian red meat industry, knowledge of these practices, and public and producer trust in people working the red meat industry using an Australia-wide survey of both the general public (n = 501) and red meat producers (n = 200). Public participants were recruited using a random digit dialing telephone survey (Computer-Assisted Telephone Interviewing) while the red meat producers were randomly selected within a curated database of Australian red meat producers. After controlling for gender and age, there were marked differences (p < 0.01) between public and producer respondents in 20 of the 27 attitude, trust and knowledge variables studied. Producers reported more positive beliefs in the conditions provided for sheep and beef cattle during sea and land transport, the husbandry practices used in the red meat industry, and red meat attributes regarding human health, environmental impact, animal use and animal welfare. Both public and producers reported similar levels of trust in conventional and commercial media and had similar beliefs about animal rights, prevention of animal cruelty and balancing the welfare of people and animals. The results indicate a polarization between the public and livestock producers in their attitudes toward animal welfare, knowledge of husbandry practices and trust in livestock people.

2.
Front Psychol ; 13: 876034, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35983191

RESUMO

Opinion leaders (OLs) within the community may lead debate on animal welfare issues and provide a path for information to their social networks. However, little is known about OLs' attitudes, activities conducted to express their views about animal welfare and whether they are well informed, or not, about husbandry practices in the red meat industry. This study aimed to (1) identify OLs in the general public and among producers and (2) compare OLs and non-OLs' attitudes, knowledge and actions to express their views about the red meat industry. Two questionnaires, one for the Australian general public (n = 501) and one for Australian red meat producers (n = 200), were developed to identify general attitudes. From these questionnaires, OLs were identified using a two-step cluster analysis. Subsequently, a sub-sample of 19 OLs (including the public and producers) participated in a follow-up phone interview. Results disclosed some clear OLs' characteristics. Public OLs held more negative perceptions of the red meat industry and perceived they had more knowledge about husbandry procedures. However, their actual knowledge about animal husbandry was not different from non-OLs. Public OLs also used and trusted social and internet media more than did non-OLs. In the producer group, a large percentage of OLs were identified (64.0% compared to 29.1% in the public group). Producer OLs had more actual knowledge about animal husbandry and engaged in more behaviours to express dissatisfaction with the industry than non-OLs (dissatisfaction in relation to the image of the red meat industry). Unlike the public respondents, this group used conventional media more than social and internet media, and their levels of trust in all kinds of media were low. While there were clear differences, both groups believed that is important to increase communication and educate about farm practices. This may present an opportunity to develop an opinion leader intervention strategy where informed OLs could later disseminate accurate information to their social networks. Further studies should test if sustained and facilitated educational sessions between public and producer OLs can assist in increasing communication, knowledge and perhaps, may assist in achieving convergence of concerns and expectations between both groups.

3.
PLoS One ; 14(7): e0220455, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31365546

RESUMO

This study examined the relationships between the attitudes and the management behaviour of the farmer and the on-farm welfare of their ewes. To our knowledge, this is the first study investigating these relationships in extensive sheep farming systems. Thirty-two sheep farmers and 6200 ewes were sampled across Victoria, Australia. Questionnaire interviews and on-farm animal welfare assessments were conducted. The ewes were assessed at two-time points, mid-pregnancy and weaning. To examine relationships between farmer and ewe variables, categorical principal component analyses, correlations and logistic regressions were used. The main findings of this study indicate relationships between farmer attitudes and management behaviour, consistent with findings from other more intensive livestock industries. Farmers were more likely to check the body condition of their ewes (Odds ratio = 2.37, P = 0.03), perform ultrasound pregnancy diagnosis (Odds ratio = 1.16, P = 0.02) and test for egg count before deworming sheep (Odds ratio = 2.88, P = 0.01) if they perceived these activities were important/valuable. In addition, farmers that performed these activities had a more active management style, and ewes in better welfare: fewer lame ewes at mid-pregnancy (r = -0.38 P = 0.04), and fewer ewes in need of further care at mid-pregnancy and weaning respectively (r = -0.47, P = 0.01; r = -0.50, P = 0.01). When combining the qualitative and quantitative analyses, behavioural attitudes (attitudes towards specific management behaviours) and perceived behavioural control (perceived barriers to performing the behaviour) emerged as the two main drivers underpinning farmer management behaviour. The results of this study indicate that the way farmers manage their ewes influences welfare outcomes, and management decisions are influenced by attitudes towards management practices. These findings demonstrate the opportunity to create change in farmer management behaviour and improve sheep welfare via targeted education programs.


Assuntos
Criação de Animais Domésticos/métodos , Bem-Estar do Animal/normas , Fazendeiros/psicologia , Conhecimentos, Atitudes e Prática em Saúde , Otimismo/psicologia , Doenças dos Ovinos/prevenção & controle , Animais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Gravidez , Ovinos , Inquéritos e Questionários
4.
PLoS One ; 14(6): e0218603, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31216326

RESUMO

The aim of this study was to identify the main on-farm welfare issues likely to be encountered in extensive sheep farming systems. Thirty-two commercial sheep farms in Victoria, Australia were involved in this study. Of the 32 farms involved, 30 were visited twice (at mid-pregnancy and weaning), and 2 farms only once (both at weaning). In total, 62 visits were conducted and 6,200 ewes (aged 2-5 years) were examined using six animal-based indicators: body condition score (BCS), fleece condition, skin lesions, tail length, dag score and lameness. In addition, the number of ewes that needed further care (such as sick or injured sheep) was recorded and reported to the farmers. Generalised linear mixed models were conducted to investigate associations between welfare outcomes and visit, ewe breed and location, with all three, and their interactions, as fixed factors. In all instances, farm was set as a random factor to account for specific variation between farms. Overall, the welfare of the ewe flocks, based on the six indicators measured, was considered good. A total of 86.9% of the ewes were in adequate BCS (2.5-3.5), 91% had good fleece condition, 69.2% had no skin lesions, 97.1% had low dag scores, and overall lameness was 4.7%. An important and prevalent risk to welfare identified across farms was short tail length; with 85.7% of ewes having tails docked shorter than the third palpable joint. While the welfare of the flock was good, ewes in need of further care were identified at all farms. There were 185 (3.0%) cases needing further care, and the extent of welfare compromise of these animals was considered significant. Main reasons for further care were moderate/severe lameness or foot-related issues, BCS ≤ 2 and active dermatophilosis or broken wool. To our knowledge, this study constitutes the largest assessment of ewes conducted in Australia, and the findings provide valuable insight into the main welfare issues likely to be encountered in extensive sheep farming enterprises. Future studies should develop practical technologies that can assist in the detection of the welfare issues identified in this study. In addition, the thresholds identified here could be used for future comparison and sheep welfare benchmarking programs to assess farm performance and measure continuous improvements.


Assuntos
Criação de Animais Domésticos/normas , Bem-Estar do Animal/normas , Doenças dos Ovinos/epidemiologia , Ovinos/fisiologia , Criação de Animais Domésticos/estatística & dados numéricos , Bem-Estar do Animal/estatística & dados numéricos , Animais , Austrália
5.
Free Radic Biol Med ; 70: 241-54, 2014 May.
Artigo em Inglês | MEDLINE | ID: mdl-24594434

RESUMO

Despite the fundamental importance of the redox metabolism of mitochondria under normal and pathological conditions, our knowledge regarding the transport of vitamin C across mitochondrial membranes remains far from complete. We report here that human HEK-293 cells express a mitochondrial low-affinity ascorbic acid transporter that molecularly corresponds to SVCT2, a member of the sodium-coupled ascorbic acid transporter family 2. The transporter SVCT1 is absent from HEK-293 cells. Confocal colocalization experiments with anti-SVCT2 and anti-organelle protein markers revealed that most of the SVCT2 immunoreactivity was associated with mitochondria, with minor colocalization at the endoplasmic reticulum and very low immunoreactivity at the plasma membrane. Immunoblotting of proteins extracted from highly purified mitochondrial fractions confirmed that SVCT2 protein was associated with mitochondria, and transport analysis revealed a sigmoidal ascorbic acid concentration curve with an apparent ascorbic acid transport Km of 0.6mM. Use of SVCT2 siRNA for silencing SVCT2 expression produced a major decrease in mitochondrial SVCT2 immunoreactivity, and immunoblotting revealed decreased SVCT2 protein expression by approximately 75%. Most importantly, the decreased protein expression was accompanied by a concomitant decrease in the mitochondrial ascorbic acid transport rate. Further studies using HEK-293 cells overexpressing SVCT2 at the plasma membrane revealed that the altered kinetic properties of mitochondrial SVCT2 are due to the ionic intracellular microenvironment (low in sodium and high in potassium), with potassium acting as a concentration-dependent inhibitor of SVCT2. We discarded the participation of two glucose transporters previously described as mitochondrial dehydroascorbic acid transporters; GLUT1 is absent from mitochondria and GLUT10 is not expressed in HEK-293 cells. Overall, our data indicate that intracellular SVCT2 is localized in mitochondria, is sensitive to an intracellular microenvironment low in sodium and high in potassium, and functions as a low-affinity ascorbic acid transporter. We propose that the mitochondrial localization of SVCT2 is a property shared across cells, tissues, and species.


Assuntos
Ácido Ascórbico/metabolismo , Transporte Biológico/genética , Mitocôndrias/metabolismo , Transportadores de Sódio Acoplados à Vitamina C/metabolismo , Radicais Livres/metabolismo , Regulação da Expressão Gênica , Células HEK293 , Humanos , Oxirredução , RNA Interferente Pequeno , Transportadores de Sódio Acoplados à Vitamina C/genética
6.
Cienc. enferm ; 18(3): 73-81, 2012. ilus
Artigo em Espanhol | LILACS | ID: lil-670124

RESUMO

Objetivo. Relacionar la capacidad de resiliencia de un grupo de adultos mayores autovalentes de la comuna de Chillán Viejo (Chile) respecto a sus estilos de vida. Material y métodos: Estudio de tipo correlacional y de corte transversal de 176 adultos mayores autovalentes de ambos sexos entre 65 y 85 años de edad asistentes a un centro de salud primaria de la comuna de Chillán Viejo Región del Bío-Bío, Chile. Se aplicó la escala Resiliencia de Wagnild y young adaptada por las autoras del estudio; empleándose la prueba de χ2 o la prueba exacta de Fischer, cuando correspondiera, considerándose como significancia estadística p<0,05. Resultados. El 82,4 por ciento de los participantes del estudio poseen una alta capacidad de resiliencia. Se observó que la capacidad de resiliencia depende significativamente de la situación de pareja (p=0,002), la mantención de actividad sexual (p=0,008), las actividades recreativas (p=0,015) y el estado de ánimo (p=0,001). Conclusión. Existen características de sus estilos de vida que se relacionan en mayor medida a su nivel de resiliencia, que le permite enfrentar cambios propios del proceso natural de envejecimiento de los adultos mayores.


Objective: Relate the resilience of a group of self-reliant elderly from Chillan Viejo County (Chile) with their life style. Design: Co relational and cross-sectional study of 176 self reliant both sexes elderly between 65 and 85 years old attending a primary health care unit at Chillán Viejo County, Bío-Bío Region, Chile. Wagnild and young Resilience Scale, adapted by the authors of this research, was applied using the χ2 test or the Fishers exact test, when necessary, considering as statistically significant, p <0.05. Results: 82.4 percent of the subjects of study have a high resilience. It was observed that the resilience depends significantly on the condition of living with a partner (p=0.002), the capacity of sexual activity (p= 0.008), the recreational activities (p= 0.015) and the mood condition (p=0.001). Conclusion. There are characteristics in their life styles that relate themselves in a greater extent to their level of resilience which enables them to face changes that are typical of the natural process of aging among older adults.


Assuntos
Feminino , Atividades Cotidianas , Idoso , Envelhecimento , Estilo de Vida , Resiliência Psicológica , Chile
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