RESUMO
Both male and female calves that are not required in the dairy herd sometimes receive inadequate care on dairy farms. Veterinarians work with farmers to improve animal care, and farmers often view veterinarians as trusted advisors; however, little is known about the attitudes of veterinarians on surplus calves. This study investigated the perspectives of Canadian cattle veterinarians on the care and management of surplus calves, as well as how they view their role in improving care. We conducted 10 focus groups with a total of 45 veterinarians from 8 provinces across Canada. Recorded audio files were transcribed, anonymized, and coded using thematic analysis. We found that veterinarians approached surplus calf management issues from a wide lens, with 2 major themes emerging: (1) problematic aspects of surplus calf management, including colostrum management, transportation, and euthanasia, and suggested management and structural solutions, including ways to improve the economic value of these calves, and (2) the veterinarian's role in advising dairy farmers on the care of surplus calves, including on technical issues, and more broadly working with farmers to better address public concerns. We conclude that veterinarians are concerned about the care of surplus calves on dairy farms and believe that they have an important role in developing solutions together with their farmer clientele.
Assuntos
Bovinos/fisiologia , Indústria de Laticínios , Fazendeiros , Médicos Veterinários/psicologia , Animais , Canadá , Bovinos/crescimento & desenvolvimento , Indústria de Laticínios/métodos , Indústria de Laticínios/normas , Eutanásia Animal , Fazendeiros/psicologia , Fazendas/normas , Feminino , Grupos Focais , Humanos , Masculino , Médicos Veterinários/normasRESUMO
Humans can become infected with hepatitis E virus (HEV) by consumption of undercooked pork. To reduce the burden of HEV in humans, mitigation on pig farms is needed. HEV is found on most pig farms globally, yet within-farm seroprevalence estimates vary considerably. Understanding of the underlying variation in infection dynamics within and between farms currently lacks. Therefore, we investigated HEV infection dynamics by sampling 1711 batches of slaughter pigs from 208 Dutch farms over an 8-month period. Four farm types, conventional, organic, and two types with strict focus on biosecurity, were included. Sera were tested individually with an anti-HEV antibody ELISA and pooled per batch with PCR. All farms delivered seropositive pigs to slaughter, yet batches (resembling farm compartments) had varying results. By combining PCR and ELISA results, infection moment and extent per batch could be classified as low transmission, early, intermediate or late. Cluster analysis of batch infection moments per farm resulted in four clusters with distinct infection patterns. Cluster 1 farms delivered almost exclusively PCR negative, ELISA positive batches to slaughter (PCR-ELISA+), indicating relatively early age of HEV infection. Cluster 2 and 3 farms delivered 0.3 and 0.7 of batches with intermediate infection moment (PCR+ELISA+) respectively and only few batches with early infection. Cluster 4 farms delivered low transmission (PCR-ELISA-) and late infection (PCR+ELISA-) batches, demonstrating that those farms can prevent or delay HEV transmission to farm compartments. Farm type partly coincided with cluster assignment, indicating that biosecurity and management are related to age of HEV infection.
Assuntos
Matadouros , Envelhecimento , Fazendas , Hepatite E , Doenças dos Suínos , Suínos , Fatores Etários , Animais , Análise por Conglomerados , Estudos Transversais , Ensaio de Imunoadsorção Enzimática , Fazendas/normas , Fazendas/estatística & dados numéricos , Hepatite E/epidemiologia , Hepatite E/transmissão , Hepatite E/veterinária , Hepatite E/virologia , Vírus da Hepatite E/genética , Vírus da Hepatite E/isolamento & purificação , Reação em Cadeia da Polimerase , Estudos Soroepidemiológicos , Suínos/virologia , Doenças dos Suínos/epidemiologia , Doenças dos Suínos/transmissão , Doenças dos Suínos/virologiaRESUMO
BACKGROUND: Domesticated pigs are the main source of Trichinella sp. infections for humans, particularly when reared in backyards or free-ranging. In temperate areas of southern Europe, most pigs are farmed under controlled housing conditions, but sows and sometimes fattening pigs have access to outdoors to improve animal welfare. The aim of the present study was to investigate whether outdoor access of breeding pigs farmed under controlled housing conditions can represent a risk for Trichinella sp. transmission when the farm is located in an agricultural area interspersed with wooded areas and badlands, where Trichinella spp. could be present in wildlife. METHODS: Serum samples were collected from 63 breeding sows and one boar before and after their access to an open fenced area for 2 months and from 84 pigs that never had outdoor access. Samples were screened for anti-Trichinella antibodies by ELISA, and positive sera were confirmed using Western blot (Wb) excretory/secretory antigens. To detect Trichinella sp. larvae, muscle tissues from serologically positive and negative pigs were tested by artificial digestion. RESULTS: Thirteen (20.6%) sows and one boar tested positive with both ELISA and Wb. No larvae were detected in muscle samples of serologically positive and serologically negative pigs. Positive serum samples were then tested by Wb using crude worm extract as antigens. The Wb banding pattern displayed was that characteristic of encapsulated species (Trichinella spiralis or Trichinella britovi). CONCLUSIONS: The detection of anti-Trichinella antibodies without larvae in the pig muscles, supported by epidemiological data, suggests that pigs may have been exposed to T. britovi. This study stresses the importance of instigating monitoring systems at farm level to prevent Trichinella sp. transmission and to investigate, through a landscape parasitological study, the suitability of a site before the planting of a high containment level pig farm in which the sows can have outside access to improve their welfare during pregnancy.
Assuntos
Bem-Estar do Animal , Anticorpos Anti-Helmínticos/sangue , Fazendas/normas , Abrigo para Animais/normas , Trichinella/imunologia , Triquinelose/imunologia , Triquinelose/veterinária , Zoonoses/transmissão , Animais , Anticorpos Anti-Helmínticos/análise , Cruzamento/normas , Feminino , Masculino , Músculos/imunologia , Músculos/parasitologia , Fatores de Risco , Sus scrofa , Suínos , Doenças dos Suínos/imunologia , Triquinelose/sangue , Triquinelose/transmissão , Zoonoses/epidemiologia , Zoonoses/parasitologiaRESUMO
Access to water is a critical aspect of livestock production, although the relationship between livestock weight gain and water quality remains poorly understood. Previous work has shown that water quality of poorly managed farm dams can be improved by fencing and constructing hardened watering points to limit stock access to the dam, and revegetation to filter contaminant inflow. Here we use cattle weight gain data from three North American studies to develop a cost-benefit analysis for the renovation of farm dams to improve water quality and, in turn, promote cattle weight gain on farms in south-eastern Australia. Our analysis indicated a strong likelihood of positive results and suggested there may be substantial net economic benefit from renovating dams in poor condition to improve water quality. The average per-farm Benefit-Cost Ratios based on deterministic assumptions was 1.5 for New South Wales (NSW) and 3.0 for Victoria in areas where rainfall exceeds 600mm annually. Our analyses suggested that cattle on farms in NSW and Victoria would need to experience additional weight gain from switching to clean water of at least 6.5% and 1.8% per annum respectively, to break even in present value terms. Monte Carlo simulation based on conservative assumptions indicated that the probability of per-farm benefits exceeding costs was greater than 70%. We recommend localised experiments to assess the impact of improved water quality on livestock weight gain in Australian conditions to confirm these expectations empirically.
Assuntos
Indústria de Laticínios/métodos , Fazendas/normas , Gado/crescimento & desenvolvimento , Qualidade da Água/normas , Animais , Austrália , Bovinos , Análise Custo-Benefício , Fazendas/economia , Método de Monte Carlo , Aumento de PesoRESUMO
Strategies to combat microbiota-associated health problems are of high interest in pig production. Successful intervention strategies with beneficial long-term effects are still missing. Most studies on pig microbiota have been conducted under standardized experimental conditions, but the situation in commercial farms differs dramatically. This study describes the fecal microbiota in German commercial pig farms under practical conditions. The study is part of the larger project "Optibiom" that aims to use bacterial composition and farm metadata to formulate tailor-made solutions for farm-specific health maintenance strategies. Special consideration is given to the sow-piglet relationship. Fecal samples from sows and their piglets were collected at two time points each in 20 different farms (sows ante- and postpartum and piglets before and after weaning). The extracted DNA was sequenced with Illumina 16S rDNA sequencing. For data analysis and visualization, differential abundance analyses, as well as hierarchical clustering and nonmetric multidimensional scaling (NMDS) were performed. A new "family unit" was implemented to compare farms based on the association between the microbiota in sows and their offspring. There are distinct changes in the microbial communities in sows before and after birth as well as in suckling and post-weaning piglets. The suckling pig microbiota is particularly different from all other groups and shows a lower bacterial diversity. While dominant genera in antepartum sows further displace the abundance of non-dominant genera postpartum, the opposite was true for piglets, where non-dominant bacteria in the suckling phase became dominant after weaning. The family unit for sows and their piglets led to separate cluster formation for some farms. The results indicate that the sow-piglet relationship is one driving force for the observed differences of the pig farms. The next step in the analysis will be the combination of metadata (feeding, housing and management practices) to find farm-specific differences that can be exploited to formulate a farm-specific health maintenance strategy.
Assuntos
Bactérias/classificação , Fazendas/organização & administração , Fezes/microbiologia , Microbiota , Suínos/microbiologia , Desmame , Animais , Animais Recém-Nascidos , Bactérias/genética , Bactérias/isolamento & purificação , Fazendas/normas , Feminino , Alemanha , Lactação/fisiologiaRESUMO
Differences in technical efficiency across farms are one of the major factors explaining differences in farm survival and growth and changes in farm industry structure. This study employs Data Envelopment Analysis (DEA) to compute technical inefficiency scores for output, energy, materials, pesticides and fertiliser of a sample of Dutch indoor vegetable farms within the period 2006-2016. A bootstrap truncated regression model is used to determine statistical associations between producer-specific characteristics and technical inefficiency scores for the specified inputs. For the sample of indoor growers, the average technical inefficiency was about 14% for energy, 23% for materials, 24% for pesticides and 22% for fertilisers. The bootstrap truncated regression suggested that the degree of specialisation exerts adverse effects on the technical inefficiency of variable inputs. While age, short-term, long-term debt and subsidy were statistically significant, the coefficients were not economically significant. Building the capacity of farmers to reduce input inefficiency will enable farmers to be competitive and reduce the adverse effects of input overuse on the environment.
Assuntos
Agricultura/educação , Fazendeiros , Fazendas/normas , Verduras/crescimento & desenvolvimento , Animais , Indústria de Laticínios , Eficiência , Emprego/normas , Feminino , Fertilizantes/efeitos adversos , Humanos , Masculino , Países BaixosRESUMO
On-farm euthanasia of poultry, including turkeys, may not be possible for most people as birds gain weight; thus alternative mechanical methods have been developed. Our objective was to compare mechanical cervical dislocation with the Koechner Euthanizing Device (KED), captive bolt euthanasia with the Turkey Euthanasia Device (TED), head-only CO2 euthanasia (CO2), and electric euthanasia as potential humane methods for euthanizing individual, heavy turkeys. We assessed their impact on loss of brain stem reflexes, acute distress (corticosterone, CORT), kill success, torn skin, and blood loss. Turkeys (n = 174) were euthanized on 3 sampling days, while birds were restrained using a mobile bird euthanasia apparatus. Brain stem reflexes recorded were the cessation and return of induced nictitating membrane reflex (loss of consciousness and brain stem dysfunction), mouth gaping reflex (brain stem dysfunction), and musculoskeletal movements (spinal cord dysfunction). Overall, KED resulted in more frequent (at 4 min: KED 7 of 14; electric 0 of 13; TED 0 of 11; CO2 2 of 14 birds on day 1) and longer durations of the induced nictitating reflex compared to the other methods (means of day 2 and 3: KED 233; electric 15; TED 15; CO2 15 s). The mouth gaping reflex endured the longest after KED euthanasia (means of day 2 and 3: KED 197; electric 15; TED 51; CO2 15 s). Musculoskeletal movements endured longest after KED euthanasia (means of day 2 and 3: KED 235; electric 15; TED 219; CO2 15 s). Returning reflexes were more frequent after KED and TED compared to CO2 and electric euthanasia, where it was absent. CO2, electric, and TED euthanasia showed comparable kill success (success: CO2 42 out of 43; electric 44 of 45; TED 42 of 44), with KED resulting in most unsuccessful kills (unsuccessful: 8 out of 42). CORT responses were inconsistent. Torn skin and blood loss occurred more frequently after KED and TED compared to CO2 and electric applications. Therefore, we conclude that, based on a comparison of these 4 methods, the most discernibly humane was electric euthanasia, which consistently resulted in quick loss of consciousness within 15 s, no returning reflexes, and no torn skin or blood loss.
Assuntos
Bem-Estar do Animal , Eutanásia Animal , Perus , Animais , Eutanásia Animal/métodos , Fazendas/normas , FemininoRESUMO
Zoonotic bacterial infections are a health hazard for people who are in regular contact with livestock at the farm level. Improved biosecurity can limit zoonotic pathogen transmission within farms. The aim of this review was to summarize the effectiveness of farm-level biosecurity interventions in reducing bacterial transmission from animals to people who lived, worked in or visited farms. A systematic literature review was conducted using Embase, Ovid Medline and Agris databases, which were searched on 7th of July 2019, limited to English language papers but with no time exclusion criteria. A narrative synthesis was undertaken utilizing the Centre for Reviews and Dissemination approach, reported in accordance with Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Risk of bias within and across the included studies was performed using established checklists. Out of 869 studies retrieved through database searches, 11 studies were selected. In addition, three studies were found through study reference lists. Fourteen studies were therefore included in this review. Biosecurity interventions were grouped into five categories: hand washing, sanitization and hygienic measures (six studies); personal protective equipment (five studies); vaccination (two studies); other interventions (e.g. air ventilation flap) (four studies); and routine farm activities (two studies). Across studies that investigated odds of human colonization or infection (three studies), odds were seen to both be increased and decreased through use of tested biosecurity measures. Large confidence intervals that often crossed the threshold of an odds ratio equal to 1 were found. Most of the studies' overall risk of bias was 'medium risk' (11 studies), with selection bias domains generally being scored 'medium risk.' Biosecurity interventions are potentially beneficial in reducing bacterial transmission from animals to humans. However, more high-quality evidence is needed to increase certainty in which interventions, in which contexts, are most effective from the human health perspective.
Assuntos
Bactérias , Infecções Bacterianas/veterinária , Zoonoses Bacterianas/prevenção & controle , Contenção de Riscos Biológicos , Fazendas/normas , Gado/microbiologia , Animais , Infecções Bacterianas/microbiologia , Infecções Bacterianas/transmissão , HumanosRESUMO
Together with conducive climatic factors, poor pre-harvest practices of ethnic small-holder farmers are a major cause of the contamination of maize by Fusarium verticillioides and fumonisins. The proliferation of this field pathogen and the accumulation of its mycotoxins in post-harvest maize caused by ethnic post-harvest practices of subsistence farms have received little attention. Therefore, this study aimed to evaluate the impact of traditional harvest and post-harvest practices on the proliferation of F. verticillioides and fumonisins contamination in post-harvest maize of two ethnic groups: Ede and Kinh from the central highlands of Vietnam. In parallel with analysis, a survey on harvest and post-harvest practices of these farmers was conducted from late December 2017 to early January 2019. As a result, four effective post-harvest practices at mitigating the contamination were defined: (1) removal of damaged cobs at harvest, (2) transport of maize home after harvest, (3) shelling maize away from fields, and (4) drying maize on cement yards. These practices were better implemented by Kinh households than Ede households reducing the post-harvest contamination of maize with F. verticillioides and fumonisin B1 (FB1), FB2, and FB3. Nevertheless, there is still room for improvement with respect to inadequate open-air drying method, poor storage infrastructure, and poor moisture content management as these correlated to the proliferation of F. verticillioides. Finally, the presence of fumonisins together with aflatoxins in some samples at the storage phase might cause a severe impact on human health.
Assuntos
Agricultura/normas , Microbiologia de Alimentos , Fumonisinas/análise , Zea mays/microbiologia , Agricultura/estatística & dados numéricos , Fazendas/normas , Fazendas/estatística & dados numéricos , Fusarium/química , Fusarium/fisiologia , Vietnã , Zea mays/químicaRESUMO
Methicillin-resistant Staphylococcus spp. (MRS) have been identified in several foods, including dairy products. Studies are needed about their occurrence and genetic diversity in the dairy production chain in order to gain a better understanding of their epidemiology and control. This study therefore focuses on isolating and characterizing MRS strains detected in milk used in the production of Brazilian artisanal unpasteurized cheeses. To this end, samples were collected from bovine feces, the hands of milkmen, milking buckets, sieves, unpasteurized milk, whey, water, artisanal unpasteurized cheeses, cheese processing surfaces, cheese handlers, cheese trays, cheese molds, and skimmers at five dairy farms located in the state of São Paulo, Brazil. Colonies suggestive of Staphylococcus spp. were subjected to multiplex PCR to confirm the presence of Staphylococcus aureus and to detect the mecA gene. Sixteen isolates containing mecA gene were detected in samples from unpasteurized cheese and from cheese handlers. None of these isolates were positive to enterotoxin genes. These 16 isolates were subjected to antimicrobial susceptibility tests, which revealed they were resistant to oxacillin, penicillin, and cefepime. Using gene sequencing, the MRS isolates were identified as S. haemolyticus, S. hominis, and S. epidermidis. Furthermore, isolates from cheese handlers' hands and artisanal unpasteurized cheese presented high genetic similarity by random amplified polymorphic DNA (RAPD-PCR) analysis, which indicates cross contamination during cheese production. Thus, we found that people directly involved in milking and cheese processing activities at small dairy farms are a potential source of contamination of MRS strains in unpasteurized milk and cheese, representing a risk to public health.
Assuntos
Queijo/microbiologia , Indústria de Laticínios/métodos , Fazendas , Staphylococcus aureus Resistente à Meticilina/genética , Staphylococcus aureus Resistente à Meticilina/isolamento & purificação , Animais , Brasil/epidemiologia , Bovinos , Indústria de Laticínios/normas , Farmacorresistência Bacteriana/fisiologia , Fazendas/normas , Humanos , Infecções Estafilocócicas/epidemiologia , Infecções Estafilocócicas/genética , Infecções Estafilocócicas/prevenção & controleRESUMO
Official inspections of cattle farms in Germany regularly reveal a number of violations concerning animal welfare. This article first addresses the legal basis and technical principles, including basic terms, for cattle farmers. Subsequently, a discussion of animal welfare problems associated with the raising of calves and young cattle, dairy and beef cattle farming, transportation, as well as emergency slaughter of cattle from the viewpoint of veterinary authorities is provided. The aim is to familiarize practicing veterinarians with the methods for the assessment of animal welfare violations as performed by official veterinarians. Providing clients with information on these evaluation criteria may contribute to an avoidance of pain and suffering in cattle.
Assuntos
Bem-Estar do Animal , Bovinos , Fazendas , Médicos Veterinários , Criação de Animais Domésticos/legislação & jurisprudência , Criação de Animais Domésticos/normas , Bem-Estar do Animal/legislação & jurisprudência , Bem-Estar do Animal/normas , Animais , Doenças dos Bovinos/prevenção & controle , Fazendas/legislação & jurisprudência , Fazendas/normas , Alemanha , Humanos , Dor/prevenção & controle , Dor/veterináriaRESUMO
The rising public health threat of antimicrobial resistance, the influence of food service companies, as well as the overall lack of positive image of using medical products in intensive farming are major drivers curbing antimicrobial use. In the future, government policies may affect practices of antimicrobial use in beef production in feedlots, a prominent current user of antimicrobials in animal agriculture, but also the agricultural industry generating the highest cash receipt in the U.S. Our objective was to estimate the cost effect from the following policies in feedlots: 1) using antimicrobials for disease prevention, control, and treatment; 2) using antimicrobials only for treatment of disease; and 3) not using antimicrobials for any reason. We modelled a typical U.S. feedlot, where high risk cattle may be afflicted by diseases requiring antimicrobial therapy, namely respiratory diseases, liver abscesses and lameness. We calculated the net revenue loss under each policy of antimicrobial use restriction. With moderate disease incidence, the median net revenue loss was $66 and $96 per animal entering the feedlot, for not using antimicrobials for disease prevention and control, or not using any antimicrobials, respectively, compared to using antimicrobials for disease prevention, control, and treatment. Losses arose mainly from an increase of fatality and morbidity rates, almost doubling for respiratory diseases in the case of antimicrobial use restrictions. In the case of antimicrobial use prohibition, decreasing the feeder cattle price by 9%, or alternatively, increasing the slaughter cattle price by 6.3%, would offset the net revenue losses for the feedlot operator. If no alternatives to antimicrobial therapy for prevention, control and treatment of current infectious diseases are implemented, policies that economically incentivize adoption of non-antimicrobial prevention and control strategies for infectious diseases would be necessary to maintain animal welfare and the profitability of beef production while simultaneously curbing antimicrobial use.
Assuntos
Criação de Animais Domésticos/economia , Antibacterianos/normas , Doenças dos Bovinos/tratamento farmacológico , Fazendas/economia , Políticas , Criação de Animais Domésticos/normas , Bem-Estar do Animal/economia , Bem-Estar do Animal/normas , Animais , Antibacterianos/farmacologia , Antibacterianos/uso terapêutico , Bovinos , Doenças dos Bovinos/economia , Doenças dos Bovinos/epidemiologia , Doenças dos Bovinos/microbiologia , Simulação por Computador , Efeitos Psicossociais da Doença , Análise Custo-Benefício , Farmacorresistência Bacteriana , Fazendas/normas , Incidência , Modelos Econômicos , Carne Vermelha/economiaRESUMO
Objectives: Safety pictograms are important graphic elements that are useful for rapidly conveying messages in workplaces. The purpose of this study was to investigate the comprehension of safety pictograms affixed to agricultural machinery among a group of Pakistani migrant farmworkers employed in Italy. Methods: Interviews about the meanings attributed to four standardized safety pictograms affixed to agricultural machinery depicting the most frequent causes of farm accidents were administered to 29 Pakistani migrant farmworkers employed on Italian farms. Results: There was high variability in pictogram comprehension. None of the participants interpreted all the pictograms in accordance with the definitions provided by the international standards. Higher comprehension rates were reported for pictograms related to the risks of tractor rollover and foot injury, while pictograms referring to the need to consult a technical manual and the risk of entanglement yielded lower comprehension scores. Previous farming experience in the country of origin and the number of years of education were significantly associated with comprehension scores. Conclusion: A discussion of pictogram features that may be critical for comprehension is provided, and (re)design suggestions are given to improve the cross-cultural comprehension of these safety signs.
Assuntos
Agricultura/instrumentação , Segurança de Equipamentos/normas , Fazendeiros/estatística & dados numéricos , Migrantes/psicologia , Acidentes de Trabalho/psicologia , Acidentes de Trabalho/estatística & dados numéricos , Adulto , Agricultura/normas , Compreensão , Segurança de Equipamentos/psicologia , Fazendeiros/psicologia , Fazendas/normas , Fazendas/estatística & dados numéricos , Feminino , Humanos , Itália , Masculino , Pessoa de Meia-Idade , Paquistão , Migrantes/estatística & dados numéricos , Adulto JovemRESUMO
Cattle markets play a major role in economic empowerment among cattle-keeping communities in developing countries. The objective of this study was to assess the structure and performance of selected cattle markets in western Kenya. Data was collected using a semi-structured questionnaire administered to livestock traders who visited markets and by conducting focus group interviews. Data was collected on availability of market information, price setting behavior, marketing costs, practices of traders on livestock movements, sources of working capital, and characteristic of respondents. A total of 252 questionnaires and six focus group discussions were conducted for the study. Cattle market concentration indices were analyzed by calculation of Gini coefficient and plotting of Lorenz curves. Additionally, gross marketing margins were calculated to evaluate market performance. The results from this study showed a positive marketing margin in study markets for all cattle categories, the relatively high Gini coefficient of 0.65, and Lorenz curves revealing that in some markets 20% of traders control about 48% of the market share which is an indication of high market concentration. The high Gini coefficient and positive marketing margin obtained imply that study markets were highly concentrated but profitable which is an indication of inequality in the markets. The main barriers to entry in these livestock markets included lack of adequate market information, high operational capital requirements, and high costs of transporting animals. In conclusion, cattle marketing within western Kenya is profitable. However, the high concentration index in markets and presence of entry barriers including lack of flow of information on sources of livestock for trade, mechanism of price setting within markets' high capital outlay, may encourage poor trade practices which may compromise biosecurity standards within markets, and hence necessitating increased risk for spread of livestock diseases and even zoonoses to connected farms and systems.
Assuntos
Criação de Animais Domésticos/economia , Doenças dos Bovinos/etiologia , Fazendas/economia , Marketing/métodos , Adulto , Criação de Animais Domésticos/normas , Animais , Bovinos , Doenças dos Bovinos/economia , Comércio , Custos e Análise de Custo , Estudos Transversais , Análise de Dados , Escolaridade , Fazendas/normas , Feminino , Grupos Focais , Humanos , Quênia , Gado , Masculino , Marketing/normas , Pessoa de Meia-Idade , Inquéritos e Questionários , ZoonosesRESUMO
The rise of antimicrobial resistance (AR) is a major threat to global health. The food animal industry contributes to the increasing occurrence of AR. Multiple factors can affect the occurrence and dissemination of AR in the animal industry, including antibiotic use and farm management. Many studies have focused on how the use of antibiotics in food-producing animals has led to the development of AR. However, a few effective mitigating strategies for AR have been developed in food-producing animals, especially those exposed to the environment. The aim of this review is to summarize potential strategies applicable for mitigating AR at the environment-livestock interface.
Assuntos
Antibacterianos/farmacologia , Infecções Bacterianas/veterinária , Resistência Microbiana a Medicamentos , Microbiologia Ambiental , Gado/microbiologia , Animais , Animais Selvagens/microbiologia , Antibacterianos/uso terapêutico , Infecções Bacterianas/prevenção & controle , Infecções Bacterianas/terapia , Resistência Microbiana a Medicamentos/efeitos dos fármacos , Fazendas/normas , Fazendas/estatística & dados numéricos , Esterco/microbiologia , Purificação da ÁguaRESUMO
Our study aimed to evaluate farmers' compliance in implementing recommendations of farm-specific cow comfort changes, and the effects of these changes on lying time, stall cleanliness and cow cleanliness using a randomized controlled trial carried out on 100 smallholder dairy farms in Kenya, with 62 and 11 farms remaining in the intervention and control groups, respectively. On the first farm visit, data loggers were attached on lactating cows to determine lying time and questionnaires utilized to collect baseline data. Three days later, stall design and management recommendations were given to the intervention group of farmers orally and in written form. After an average of 39⯱â¯7 days, data loggers were re-attached, compliance was assessed, and a post-intervention questionnaire was administered to the intervention group on the third visit. Three days subsequent to the first and third visits, data loggers were removed from all cows. Data were analysed in Stata 14.2® using proportion tests and Kruskal-Wallis rank tests to compare cleanliness scores and lying time, respectively. Interaction effects between treatment groups and visits were assessed using multivariable mixed linear and logistic regression models. While 46 of the 62 intervention farmers (74%) made at least one recommended change to cow comfort, 63% of the 324 overall recommendations were implemented. The odds of a recommendation being implemented were significantly higher when:1) major recommendations were given relative to minor recommendations (ORâ¯=â¯6.28); 2) recommendations were related to floor characteristics (floor softness and flatness) in comparison to recommendations related to stall design (ORâ¯=â¯3.14). The odds of compliance were lower on: 1) farms where the farm-hands received the recommendations compared to farms that had the female principal farmer receive the recommendations (ORâ¯=â¯0.01); 2) farms that had recommended changes related to roof, alley and sharps fixes relative to stall design fixes (ORâ¯=â¯0.13). Post-intervention, stall, udder and upper hind-leg cleanliness scores improved significantly (pâ¯<â¯0.0001, pâ¯=â¯0.021 and pâ¯=â¯0.017, respectively) in the intervention farms but not in the control farms. There was no significant difference in lying times between intervention and control farms, with 0.6 and 0.2â¯h/day increases being recorded in the intervention and control groups, from the 10.9 and 10.4â¯h/day at baseline, respectively. Giving farm-specific cow comfort recommendations to smallholder dairy farmers in Kenya, and providing them with a participatory role in the formulation and implementation of improvement recommendations ensured good acceptance and a high degree of implementation, and led to a subsequent improvement in cow comfort and cleanliness.
Assuntos
Bem-Estar do Animal , Indústria de Laticínios , Fazendeiros , Fazendas , Abrigo para Animais , Animais , Bovinos , Feminino , Humanos , Masculino , Bem-Estar do Animal/normas , Bem-Estar do Animal/estatística & dados numéricos , Comportamento Animal , Indústria de Laticínios/normas , Indústria de Laticínios/estatística & dados numéricos , Fazendeiros/estatística & dados numéricos , Fazendas/normas , Fazendas/estatística & dados numéricos , Abrigo para Animais/normas , Abrigo para Animais/estatística & dados numéricos , QuêniaRESUMO
In order to support decision making on how to most effectively improve broiler welfare an innovative expert survey was conducted based on principles derived from semantic modelling. Twenty-seven experts, mainly broiler welfare scientists (n = 20; and 7 veterinarians), responded (response rate 38%) by giving welfare scores (GWS, scale 0-10) to 14 benchmarking housing systems (HSs), and explaining these overall scores by selecting, weighing and scoring main welfare parameters, including both input and output measures. Data exploration followed by REML (Linear Mixed Model) and ALM (Automatic Linear Modelling) analyses revealed 6 clusters of HSs, sorted from high to low welfare, i.e. mean GWS (with superscripts indicating significant differences): 1. (semi-natural backyard) Flock (8.8a); 2. Nature (7.7ab), Label Rouge II (7.4ab), Free range EU (7.2ab), Better Life (7.2ab); 3. Organic EU (7.0bc), Freedom Food (6.2bc); 4. Organic US (5.8bcd), Concepts NL (5.6abcdef), GAP 2 (4.9bcd); 5. Conventional EU (3.7de), Conventional US (2.9ef), Modern cage (2.9abcdef); 6. Battery cage (1.3f). Mean weighting factors (WF, scale 0-10) of frequently (n> = 15) scored parameters were: Lameness (8.8), Health status (8.6), Litter (8.3), Density (8.2), Air quality (8.1), Breed (8.0), Enrichment (7.0) and Outdoor (6.6). These did not differ significantly, and did not have much added value in explaining GWS. Effects of Role (Scientist/Vet), Gender (M/F) and Region (EU/non-EU) did not significantly affect GWS or WF, except that women provided higher WF than men (7.2 vs 6.4, p<0.001). The contribution of welfare components to overall welfare has been quantified in two ways: a) using the beta-coefficients of statistical regression (ALM) analyses, and b) using a semantic-modelling type (weighted average) calculation of overall scores (CalcWS) from parameter level scores (PLS) and WF. GWS and CalcWS were highly correlated (R = ~0.85). CalcWS identified Lameness, Health status, Density, Breed, Air quality and Litter as main parameters contributing to welfare. ALM showed that the main parameters which significantly explained the variance in GWS based on all PLS, were the output parameter Health status (with a beta-coefficient of 0.38), and the input parameters (stocking) Density (0.42), Litter (0.14) and Enrichment (0.27). The beta-coefficients indicated how much GWS would improve from 1 unit improvement in PLS for each parameter, thus the potential impact on GWS ranged from 1.4 welfare points for Litter to 4.2 points for Density. When all parameters were included, 81% of the variance in GWS was explained (77% for inputs alone; 39% for outputs alone). From this, it appears that experts use both input and output parameters to explain overall welfare, and that both are important. The major conventional systems and modern cages for broilers received low welfare scores (2.9-3.7), well below scores that may be considered acceptable (5.5). Also, several alternatives like GAP 2 (4.9), Concepts NL (5.6), Organic US (5.8) and Freedom Food (6.2) are unacceptable, or at risk of being unacceptable due to individual variation between experts and farms. Thus, this expert survey provides a preliminary semi-quantified decision-support tool to help determine how to most effectively improve broiler welfare in a wide range of HSs.
Assuntos
Criação de Animais Domésticos/normas , Bem-Estar do Animal/normas , Galinhas/fisiologia , Abrigo para Animais/normas , Animais , Galinhas/genética , Fazendas/normas , Humanos , Pessoal de Laboratório , Fatores de Risco , Inquéritos e QuestionáriosRESUMO
BACKGROUND: In Africa, intensified pig production is frequently accompanied by increased occurrence of African swine fever (ASF) outbreaks, leading to high case fatality rates and socio-economic impact for the farmers. ASF control relies on prevention of disease transmission and control of outbreaks. The aim of this study was to increase the understanding on how the knowledge of ASF epidemiology and control can be transferred into successfully implemented biosecurity interventions on farm and community level. Structured interviews with 200 randomly selected, pig-keeping households in northern Uganda were undertaken three times. Perceptions related to general biosecurity and hypothetical control interventions and attitudes towards pig farming were investigated by measuring the agreement to statements using a Likert scale. RESULTS: Respondents generally conveyed positivism towards pig farming, biosecurity, and the potential of biosecurity for preventing ASF outbreaks. These positive attitudes, as well as the will to invest in biosecurity, were reduced in households that had experienced ASF outbreaks. Among the control interventions change of boots before entering the pig stable was highly accepted and seasonal adaptation of pig rearing times accepted on medium level. Statements on preventive sales of healthy pigs in connection with outbreaks and on buying pork products from slaughter operations receiving ASF-contact pigs received low acceptance, increasing, however, for households that had experienced ASF outbreaks. Consumption of pork from ASF infected pigs was generally not accepted, medium level of agreement was expressed for statements on the zoonotic potential of ASF and for neutralizing ASF by cooking. CONCLUSIONS: To gain in-depth understanding of the complexity of people's behaviour, reasoning and decision-making processes, deeper involvement of the social sciences and a qualitative research approach might be used for further studies. Communicating information regarding the ASF not being zoonotic, and how the virus is neutralized will be important for increasing acceptance and enhancing implementation for the hypothetical control interventions preventive sales, safe slaughter, and consumption of processed and safe pork. Likewise, participatory development to adopt any control interventions to the local context on community level will be necessary for successful implementation.
Assuntos
Febre Suína Africana/prevenção & controle , Criação de Animais Domésticos , Fazendeiros , Conhecimentos, Atitudes e Prática em Saúde , Febre Suína Africana/epidemiologia , Animais , Fazendas/normas , Humanos , Fatores de Risco , Suínos , Uganda/epidemiologiaRESUMO
Artisanal Colonial-type cheese is made from raw milk and is the main cheese produced by rural families of the southern region of Brazil. The aim of this study was to investigate, identify problems, and propose solutions for the current situation of small family farms producing and informally selling artisanal Colonial-type cheese located in the western part of Santa Catarina State in Southern Brazil. A semistructured questionnaire was employed in 12 rural properties to analyze the mode of production. Physical-chemical and microbiological analyses of water, raw milk, and cheese were performed, and it was found that 92, 50, and 100% of the samples, respectively, were outside of the current Brazilian regulatory parameters. None of the cheesemakers involved in this study met the requirements, as established by law, for artisanal cheese production from raw milk. This study concluded that technical support and changes in public policy are needed to ensure the preservation of this artisanal cheese, considering the historical importance and cultural traditions of these local communities and the socioeconomic importance of cheesemaking to family farming. Furthermore, more research on the safety of the cheese produced from raw milk is needed as well as the development of specific microbiological standards for artisanal Brazilian cheeses. Public policies aimed at guaranteeing food safety that formalize the commercialization of these cheeses will increase food security in those communities that currently produce artisanal cheese informally.
Assuntos
Queijo/normas , Microbiologia de Alimentos , Inocuidade dos Alimentos , Legislação sobre Alimentos , Leite/normas , Animais , Brasil , Queijo/análise , Queijo/classificação , Queijo/microbiologia , Fazendas/normas , Humanos , Leite/química , Leite/microbiologia , População Rural , Inquéritos e Questionários , Microbiologia da Água , Abastecimento de Água/normasRESUMO
BACKGROUND: Having a match between a nursing home and the preferences of people with dementia is beneficial for their well-being. It is suggested that innovative types of nursing homes such as small-scale living facilities and green care farms create a better match between their care environment and their residents. However whether this is also reflected into the experiences of informal caregivers is not known. Therefore, this study explores what their positive and negative experiences are with regard to green care farms, other small-scale living facilities, and traditional nursing homes. METHODS: A qualitative exploratory research design was used. Semi-structured interviews with 43 informal caregivers (2014-2015) were carried out. Topics discussed were: positive and negative experiences with the nursing home and reasons for choice of a particular type of nursing home. Thematic analysis including an iterative process of open, axial and selective coding, was used. RESULTS: Five themes emerged: (1) physical environment and atmosphere, (2) activities, (3) person-centred care, (4) communication, and (5) staff. Informal caregivers at green care farms were more positive about the physical environment, activities, and person-centred care compared with informal caregivers in the other types of nursing homes. Both positive and negative experiences regarding communication and individual staff members appeared across all types of nursing homes. CONCLUSIONS: Experiences of informal caregivers with a nursing home are dependent on the type of nursing home. However, experiences were also often related to individual nursing staff and their interpersonal, 'human' qualities.