ABSTRACT
Probiotics development for animal farming implies thorough testing of a vast variety of properties, including adhesion, toxicity, host cells signaling modulation, and immune effects. Being diverse, these properties are often tested individually and using separate biological models, with great emphasis on the host organism. Although being precise, this approach is cost-ineffective, limits the probiotics screening throughput and lacks informativeness due to the 'one model - one test - one property' principle. There is а solution coming from human-derived cells and in vitro systems, an extraordinary example of human models serving animal research. In the present review, we focus on the current outlooks of employing human-derived in vitro biological models in probiotics development for animal applications, examples of such studies and the analysis of concordance between these models and host-derived in vivo data. In our opinion, human-cells derived screening systems allow to test several probiotic properties at once with reasonable precision, great informativeness and less expenses and labor effort.
Subject(s)
Animal Husbandry , Biomarkers , Host Microbial Interactions , Probiotics , Animal Husbandry/methods , Animal Husbandry/trends , Animals , Cells, Cultured , Host Microbial Interactions/physiology , Humans , Models, BiologicalABSTRACT
Pharmacological treatment remains essential to control fasciolosis in areas where infection is endemic. However, there are major constraints to treating food-producing animals. Of particular concern is the lack of flukicides for treating early Fasciola infections in ruminant livestock in some countries. In addition, the information provided in package leaflets, particularly regarding withdrawal periods, is often incomplete, confusing, and/or contradictory. International regulatory bodies should harmonize the use of flukicides in livestock in favor of fairer, safer international trade. In addition, monitoring the efficacy of fasciolicides on farms is also essential to minimize the spread of drug-resistant populations of Fasciola. The current situation regarding flukicide formulations in the European Union and other, non-European countries is analyzed in this review paper.
Subject(s)
Anthelmintics , Fascioliasis , Ruminants , Animal Husbandry/standards , Animal Husbandry/trends , Animals , Anthelmintics/standards , Anthelmintics/therapeutic use , Drug Resistance , Fascioliasis/drug therapy , Livestock/parasitology , Ruminants/parasitologyABSTRACT
Over the past decade, pastoralists in Kunene Region, Namibia, have endured recurrent drought and flood events that have culminated in the loss of their primary form of livelihood-pastoralism. Most pastoralists are finding it difficult to sustain their livelihoods, and their communities have fallen into extreme poverty. Ecosystem-based Adaptation (EbA) approaches are increasingly acknowledged as having the potential to enhance the adaptive capacity of vulnerable communities. The first step is to develop an understanding of how affected communities live, their perceptions of and how they respond to climate change and the biophysical impacts of climate change in their communities. This study aims to collect this information in order to explore the use of EbA to help pastoralists adapt to climate change. We examined an isolated pastoral Himba community, to understand their perceptions, experiences and understanding of climate change and its related impacts on their livelihoods. A nested mixed-methods approach using structured interviews was employed to address the study objectives. Interview results revealed that pastoralists lack scientific knowledge of climate change, and they have no access to climate change information. Though pastoralists have coping and adaptation approaches at the community level (such as making gardens, fishing, etc.), these have become ineffective as climatic uncertainty and change persist. Furthermore, pastoralists no longer get benefits from the environment, such as food and fodder. Despite this, there are currently no biodiversity interventions at the community level to address the impacts of climate change. Pastoralists have indicated their adaptation needs, particularly the provision of water supply to grow food. This is an open avenue to explore EbA approaches, specifically ecological restoration, while still addressing the need of the pastoralists. There is an urgent need to develop new practical adaptation strategies, including restoration options that will strengthen their adaptive capacity.
Subject(s)
Animal Husbandry/methods , Animal Husbandry/trends , Acclimatization , Biodiversity , Climate Change , Conservation of Natural Resources/methods , Droughts , Ecosystem , Floods , Humans , Knowledge , NamibiaABSTRACT
Agriculture provides livelihood for 65% of Nepal's population contributing for 27% of its GDP. Smallholder farms constitute 60% of farming segment. Distress farming, with inadequate minimum support price, subsidies and inadequate revenue generation force 29% of the general population to be malnourished. Farming system designs with integration of animal components would augment animal protein intake of these resource-poor populations, livelihood enhancement and sustainability of production system. On-farm field experiments in 75 participating farmers fields of Nepal with integration of fish culture and poultry rearing in transplanted rice showed appreciable (a significant) increase in nutritional status and livelihoods of participating farmers.
Subject(s)
Agriculture/methods , Animal Husbandry/methods , Farms/trends , Animal Husbandry/trends , Animals , Farmers/education , Fisheries/trends , Fishes , Humans , Nepal , Oryza , PoultrySubject(s)
Animal Husbandry/trends , Breeding , Animals , Breeding/methods , Genetic Variation , Genomics , Interdisciplinary Research/trends , PhenotypeABSTRACT
Advances in genome-editing technologies and sequencing of animal genomes enable researchers to generate genome-edited (GE) livestock as valuable animal models that benefit biological researches and biomedical and agricultural industries. As birds are an important species in biology and agriculture, their genome editing has gained significant interest and is mainly performed by using a primordial germ cell (PGC)-mediated method because pronuclear injection is not practical in the avian species. In this method, PGCs can be isolated, cultured, genetically edited in vitro, and injected into a recipient embryo to produce GE offspring. Recently, a couple of GE quail have been generated by using the newly developed adenovirus-mediated method. Without technically required in vitro procedures of the PGC-mediated method, direct injection of adenovirus into the avian blastoderm in the freshly laid eggs resulted in the production of germ-line chimera and GE offspring. As more approaches are available in avian genome editing, avian research in various fields will progress rapidly. In this review, we describe the development of avian genome editing and scientific and industrial applications of GE avian species.
Subject(s)
Biotechnology/methods , Chickens/genetics , Gene Editing/methods , Genome , Adenoviridae/genetics , Agriculture , Animal Husbandry/trends , Animals , Animals, Genetically Modified , CRISPR-Cas Systems , Germ Cells/cytology , Models, Animal , Oocytes/cytology , Ovulation , Poultry , QuailABSTRACT
INTRODUCTION: The modern technique of cattle hoof care was founded by E. Toussaint Raven in 1977. Environmental risk factors on cattle claws altered in the past 43 years. The change from free ranging to indoor housing, the intensified feeding and the breeding towards traits of high performance have significantly increased the mechanical and chemical stress on the claws. In modern free-stalls, dairy cows are required to walk on hard flooring to feed, drink and get milked. Good hoof health is a basic requirement for cattle welfare. Professional and regular hoof trimming is still considered the most effective measure to promote hoof health in dairy cattle. In order to meet today's requirements and to promote claw health, the Swiss Hoof Trimmers Association (SKV), in collaboration with the Vetsuisse faculties, Universities of Berne and Zurich, and the Bovine Health Service (RGD, Bern) developed and described the Swiss technique of functional claw trimming. The aim was to establish a consistent method, which takes into account the size and bodyweight of the modern cow, the anatomical and physiological characteristics of their claws and includes adaptations counteracting very relevant diseases such as digital dermatitis. The result is a workflow described and illustrated with coloured pictures and consisting of five individual steps based on the technique of E. Toussaint Raven, Additionally, the upcoming Swiss national resource project on long-term improvement of claw health is presented in some detail. The key point of this project is the electronic documentation of clinical findings by the trained professional claw trimmers. This data will later (i) be used to assess the foot health of Swiss cows, (ii) allow to determine the prevalence of foot diseases of cattle in Switzerland and (iii) to monitor the effect of the implementation of foot health concepts. The aim of this work is to combine the findings from science and the practical experience of hoof trimmers in one method, to standardize the applied hoof care in Switzerland and to adapt it to today's hoof health requirements.
INTRODUCTION: La technique moderne du soin des pieds des bovins et du parage des onglons a été fondée par E. Toussaint Raven en 1977. Au cours des 43 dernières années, le passage d'une détention au pâturage à une détention à l>intérieur, l'intensification de l'alimentation et la sélection vers des caractéristiques de hautes performances ont provoqué une augmentation sensible du stress mécanique et chimique exercé sur les onglons. Dans les stabulations libres modernes, les vaches laitières doivent se déplacer activement sur un sol dur pour se nourrir, boire et se faire traire. Pour cela, une marche indolore est une exigence de base. Un parage professionnel et régulier est toujours considéré comme la mesure la plus efficace pour promouvoir la santé des onglons chez les bovins laitiers. Afin de répondre aux exigences actuelles et de promouvoir la santé des onglons, l' Association suisse des pareurs d'onglons (ASPO), en collaboration avec les facultés Vetsuisse des universités de Berne et de Zurich et le Service sanitaire bovin (SSB, Bern) a développé et décrit une technique suisse de parage fonctionnel des onglons. L'objectif était d'établir une méthode cohérente, qui tienne compte de la taille et du poids corporel de la vache moderne, des caractéristiques anatomiques et physiologiques de ses onglons et qui inclue en même temps des innovations pour lutter contre des maladies très importantes telles que la dermatite digitée. Le résultat est un processus de travail composé de cinq étapes individuelles adaptées selon E. Toussaint Raven, décrites et illustrées dans un tableau avec des illustrations en couleurs. En outre, un projet de ressource nationale suisse sur l'amélioration à long terme de la santé des onglons est présenté en détail. Dans ce cadre, la documentation électronique des découvertes pathologiques faites pendant le parage des onglons par des ongleurs professionnels et formés représente le cÅur de ce projet. Ces données seront ensuite utilisées (i) pour évaluer la santé des pieds des vaches suisses, (ii) pour permettre de déterminer la prévalence des maladies des pieds des bovins en Suisse et (iii) pour surveiller l'effet de la mise en Åuvre des concepts de santé des onglons. Le but de ce travail est de combiner les résultats de la recherche et l'expérience pratique des ongleurs en une seule méthode, de standardiser les soins pratiqués en Suisse et de les adapter aux exigences actuelles en matière de santé des onglons.
Subject(s)
Animal Husbandry/methods , Cattle Diseases/prevention & control , Hoof and Claw , Animal Husbandry/trends , Animals , Cattle , Cattle Diseases/epidemiology , Foot Diseases/prevention & control , Foot Diseases/veterinary , Switzerland/epidemiologyABSTRACT
Handling of laboratory mice is essential for experiments and husbandry, but handling can increase anxiety in mice, compromising their welfare and potentially reducing replicability between studies. The use of non-aversive handling (e.g., tunnel handling or cupping), rather than the standard method of picking mice up by the tail, has been shown to enhance interaction with a handler, reduce anxiety-like behaviours, and increase exploration and performance in standard behavioural tests. Despite this, some labs continue to use tail handling for routine husbandry, and the extent to which non-aversive methods are being used is currently unknown. Here we conducted an international online survey targeting individuals that work with and/or conduct research using laboratory mice. The survey aimed to identify the handling methods currently being used, and to determine common obstacles that may be preventing the wider uptake of non-aversive handling. We also surveyed opinions concerning the current data in support of non-aversive handling for mouse welfare and scientific outcomes. 390 complete responses were received and analysed quantitatively and thematically. We found that 35% report using tail handling only, and 43% use a combination of tail and non-aversive methods. 18% of respondents reported exclusively using non-aversive methods. The vast majority of participants were convinced that non-aversive handling improves animal welfare and scientific outcomes. However, the survey indicated that researchers were significantly less likely to have heard of non-aversive handling and more likely to use tail handling compared with animal care staff. Thematic analysis revealed there were concerns regarding the time required for non-aversive methods compared with tail handling, and that there was a perceived incompatibility of tunnel handling with restraint, health checks and other routine procedures. Respondents also highlighted a need for additional research into the impact of handling method that is representative of experimental protocols and physiological indicators used in the biomedical fields. This survey highlights where targeted research, outreach, training and funding may have the greatest impact on increasing uptake of non-aversive handling methods for laboratory mice.
Subject(s)
Animal Husbandry/methods , Animal Husbandry/trends , Adolescent , Adult , Aged , Animal Husbandry/ethics , Animal Welfare/trends , Animals , Behavior, Animal , Female , Handling, Psychological , Humans , Male , Mice , Middle Aged , Research Personnel , Surveys and QuestionnairesABSTRACT
Innovations supporting a shift towards more sustainable food systems can be developed within the dominant food system regime or in alternative niches. No study has compared the challenges faced in each context. This paper, based on an analysis of 25 cases of European innovations that support crop diversification, explores the extent to which barriers to crop diversification can be related to the proximity of innovation settings with dominant food systems. Drawing on a qualitative analysis of interviews and participatory brainstorming, we highlight 46 different barriers to crop diversification across the cases, at different levels: production; downstream operations from farm to retailing, marketing and consumers; and contracts and coordination between actors. To characterise the diversity of innovation strategies at food system level, we introduce the concept of "food system innovation settings" combining: (i) the type of innovative practice promoted at farm level; (ii) the type of value chain supporting that innovation; and (iii) the type of agriculture involved (organic or conventional). Through a multiple correspondence analysis, we show different patterns of barriers to crop diversification according to three ideal-types of food system innovation settings: (i) "Changing from within", where longer rotations are fostered on conventional farms involved in commodity supply chains; (ii) "Building outside", where crop diversification integrates intercropping on organic farms involved in local supply chains; and (iii) "Playing horizontal", where actors promote alternative crop diversification strategies-either strictly speaking horizontal at spatial level (e.g. strip cropping) or socially horizontal (arrangement between farmers)-without directly challenging the vertical organisation of dominant value chains. We recommend designing targeted research and policy actions according to the food systems they seek to develop. We then discuss further development of our approach to analyse barriers faced in intermediate and hybrid food system configurations.
Subject(s)
Animal Husbandry/organization & administration , Crop Production/organization & administration , Farms/organization & administration , Organizational Innovation , Sustainable Development/trends , Animal Husbandry/statistics & numerical data , Animal Husbandry/trends , Crop Production/methods , Crop Production/statistics & numerical data , Crop Production/trends , Crops, Agricultural , Diffusion of Innovation , Europe , Farmers/statistics & numerical data , Farms/statistics & numerical data , Farms/trends , Humans , Policy , Spatio-Temporal Analysis , Surveys and Questionnaires/statistics & numerical dataABSTRACT
Food production including dairy has been associated with environmental impacts and resource use that has been steadily improving when adjusted per unit of product. The objective of this study was to conduct a cradle-to-farm gate environmental impact analysis and resource inventory of the California dairy production system to estimate the change in greenhouse gas emissions and water and land use over the 50-yr period between 1964 and 2014. Using a life cycle assessment according to international standards and the Food and Agriculture Organization of the United Nations guidelines, we analyzed contributions from dairy production in California to global environmental change. Production of 1 kg of energy- and protein-corrected milk (ECM) in California emitted 1.12 to 1.16 kg of CO2 equivalents (CO2e) in 2014 compared with 2.11 kg of CO2e in 1964, a reduction of 45.0 to 46.9% over the last 50 yr, depending on the model used. Greater reductions in enteric methane intensity (i.e., methane production per kilogram of ECM) were observed (reduction of 54.1 to 55.7%) compared with manure GHG (reduction of 8.73 to 11.9%) in 2014 compared with 1964. This was mainly because manure management in the state relies on lagoons for storage, which has a greater methane conversion factor than solid manure storage. Water use intensity was reduced by 88.1 to 89.9%, with water reductions of 88.7 to 90.5% in crop production, 55.3 to 59.2% in housing and milking, and 52.4 to 54% in free water intake. Improved crop genetics and management have contributed to large efficiencies in water utilization. Land requirements for crop production were reduced by 89.4 to 89.7% in 2014 compared with 1964. This was mainly due to dramatic increases in crop yields in the last 50 yr. The increases in milk production per cow through genetic improvements and better nutrition and animal care have contributed to reductions in greenhouse gas emissions and land and water usage when calculated per unit of production (intensity) basis.
Subject(s)
Dairying/trends , Environment , Greenhouse Gases/metabolism , Milk/metabolism , Water/metabolism , Animal Feed/classification , Animal Feed/standards , Animal Husbandry/standards , Animal Husbandry/trends , Animals , California , Cattle , Crop Production/trends , Crops, Agricultural/growth & development , Dairying/standards , Farms , Female , Global Warming , Manure , Methane/biosynthesis , Methane/metabolism , Milk/standards , Pregnancy , Waste Management/standardsABSTRACT
INTRODUCTION: The increasing professionalization and the cost pressure on farms combined with a decreasing availability of veterinary expertise procures the demand for treatments and interventions performed by non-veterinarians. A current survey resulting in 56 responses of food animal practitioners showed that a majority delivered pour-on anthelmintics, drugs for oral application and ointments after respective instruction to farmers. Udder injectors, antimicrobials and vaccines were handled more restrictively, but even hormones were committed by more than half of the veterinarians to livestock owners. In respect to interventions, most practitioners supported that farmers perform functional foot trimming, administration of boli, inseminations, dehorning and castrations of calves. By contrast, many veterinarians refused that farmers apply intravenous injections, insert a trocar or treat sole ulcers. In respect to the future development, implications of non-veterinarian interventions on animal welfare, consumer protection and drug safety have to be considered. Indispensable are qualification and skills of the person performing interventions which can be acquired by certificated training courses. Moreover, a basic conception and taking responsibility in particular for application of veterinary drugs is mandatory - in this respect, at present marked deficits exist among many farmers. Based on the current legal situation, several interventions can be delegated to non-veterinarians, but the technical responsibility for the proper implementation is due to the veterinarian. This includes an evaluation of interventions and treatments on a regular basis together with the farmer. On this basis, the assessment of clinical symptoms as well as the initial treatment can be useful and appropriate to ensure a rapid therapy especially in animals suffering from factorial diseases. Having in mind profound differences in respect to the competence of non-veterinarians, general procedures to deliver drugs and to delegate interventions have to be rejected. Advanced diagnostic procedures and the prescription of veterinary drugs remain an exclusive mission of the veterinarian.
INTRODUCTION: La professionnalisation progressive et la pression des coûts sur les exploitations agricoles, combinées à une disponibilité d'expertise vétérinaire décroissante au moins au niveau régional, font que de plus en plus de traitements et d'interventions sur le bétail peuvent être effectués par des non-vétérinaires. Une enquête récente portant sur les réponses de 56 cabinets pour animaux de rente a révélé que la plupart d'entre eux remettent des anthelminthiques pour-on, des médicaments à administrer par voie orale et des onguents aux propriétaires d'animaux. On est plus restrictif avec les injecteurs intra-mammaires, les antibiotiques et les vaccins, mais même des hormones sont remises aux agriculteurs après instruction par plus de la moitié des vétérinaires. En termes d'interventions, la majorité des praticiens soutiennent la réalisation de soins fonctionnels des onglons, l'administration de boli, l'écornage des veaux, la castration et l'insémination par des non-vétérinaires. En revanche, la plupart des praticiens considèrent que les injections intraveineuses, la mise en place d'un trocart et le traitement d'un ulcère de la sole doivent être effectués par des vétérinaires. En ce qui concerne l'évolution future, il est important de prendre en compte les implications pour le bien-être des animaux, la protection des consommateurs et la sécurité en matière de médicaments. Il est essentiel que l'exécutant ait la compétence nécessaire ainsi que la capacité de prouver qu'il possède une expertise. En outre, une compréhension de base du sujet et la prise de responsabilité, notamment en ce qui concerne l'utilisation de médicaments vétérinaires, sont nécessaires. Bien que le vétérinaire puisse déléguer des actes en raison de la situation juridique actuelle, il assume ensuite la responsabilité professionnelle de la qualité des interventions réalisées. En outre la délégation nécessite impérativement une évaluation rétrospective régulière du type et du nombre des traitements ainsi qu'un contrôle du bon usage des médicaments vétérinaires conformément à l'Ordonnance sur les médicaments vétérinaires. Sous cette prémisse, le recueil des commémoratifs dans un cadre clairement défini et conformément aux exigences légales avec un traitement initial par l'agriculteur peut être, dans la pratique, judicieux, en particulier dans les maladies factorielles pour assurer le traitement le plus rapide possible des animaux malades. Compte tenu des différences considérables en termes de compétence professionnelle parmi les non-vétérinaires, des réglementations forfaitaires devraient être rejetées. Les diagnostics plus approfondis et la prescription de médicaments vétérinaires doivent en principe rester une tâche exclusive du vétérinaire.
Subject(s)
Animal Husbandry/methods , Farmers , Veterinarians/supply & distribution , Veterinary Medicine/trends , Animal Husbandry/standards , Animal Husbandry/trends , Animals , Animals, Domestic , SwitzerlandABSTRACT
Biosecurity policy in NSW is based on the concept of 'shared responsibility' that emphasises small government and devolution of responsibility to stakeholders. This paper draws on a case study of the cattle tick program to illustrate the challenges for governments implementing a 'shared responsibility' biosecurity strategy in the multifunctional rural landscapes that are now typical of the more closely settled regions of south-eastern Australia. Agriculture may remain the dominant land use in these regions but other values underpin landownership and management for an increasing proportion of landholders who are not farmers by occupation, are disconnected from traditional producer networks, and often lack the knowledge and skills to effectively manage biosecurity threats. We describe the challenges posed by multifunctionality including a high property turnover rate, rapidly increasing rural land values, in-migration of new landholders and multiple landholder types holding different values and beliefs that influence their cattle tick management practices. We suggest ways biosecurity programs within a 'shared responsibility' framework can more effectively engage producers. These include negotiating with industry or a representative body the level of responsibility and management decisions being delegated, and to building the social and human capital of landholders taking into account the specific information and training needs of new and non-farmer landholders in addition to cattle tick management.
Subject(s)
Animal Husbandry/methods , Farmers/psychology , Health Knowledge, Attitudes, Practice , Rural Population/trends , Socioeconomic Factors , Animal Husbandry/statistics & numerical data , Animal Husbandry/trends , Humans , New South Wales , Surveys and QuestionnairesABSTRACT
OBJECTIVE: To explore the integrated schistosomiasis control model in mountainous and hilly endemic regions, so as to provide insights into the development of the schistosomiasis elimination strategy. METHODS: Five hilly and mountainous areas endemic for schistosomiasis were selected as the integrated control demonstration areas in Sichuan Province from 2011 to 2015. According to the epidemic characteristics, economic levels and overall development planning of the demonstration areas, the goals, strategies and measures were developed, and the effectiveness of schistosomiasis control was evaluated following implementation of the integrated control. RESULTS: The support system of the integrated schistosomiasis control model was built in the integrated control demonstration areas in Sichuan Province from 2011 to 2015, and five ecological, industrialized and sustainable development models of integrated schistosomiasis control were developed, including integration of balancing rural and urban development, systematic ecological improvement, intensified ecological agriculture, scientific management and health education of schistosomiasis control and ecological ethnic circular economy. Since the implementation of the integrated schistosomiasis control model, the snail habitats were completely changed. Until 2015, 92.0% of all historical areas with snails were managed, the coverage of safe drinking water was 100.0%, and more than 95.0% of the livestock were fenced. The coverage of sanitary toilets increased by 93.0%, 96.8%, 78.8%, 87.1% and 82.0% from 2011 to 2015, respectively, and the farmers'mean yearly income increased by 32.7% in the demonstration areas. From 2011 to 2015, the seroprevalence of human Schistosoma japonicum infections reduced from 3.1% in 2011 to 1.6% in 2015 in the demonstration areas, and no egg-positives were identified. In addition, the number of fenced bovines reduced year by year, and no egg-positives were detected. The areas of snail habitats were 398.7, 108.2 hm2 and 52.9 hm2 in the demonstration areas from 2011 to 2013, with no infected snails found, and no snails were detected since 2014. The awareness of schistosomiasis control knowledge and percentage of correct behavior formation increased year by year among residents in the demonstration areas from 2011 to 2015. CONCLUSIONS: The five integrated schistosomiasis control models meet the needs of the current schistosomiasis control activities in mountainous and hilly endemic areas of Sichuan Province, and achieve the goals of controlling the sources of S. japonicum infections, economic development, social progress and improving the ecological environment, which provides new insights into schistosomiasis elimination in the country.
Subject(s)
Ecosystem , Schistosomiasis , Animal Husbandry/standards , Animal Husbandry/trends , Animals , Cattle , Cattle Diseases/epidemiology , China/epidemiology , Humans , Schistosomiasis/epidemiology , Schistosomiasis/prevention & control , Schistosomiasis japonica , Seroepidemiologic Studies , Snails/physiology , Sustainable Development/trendsABSTRACT
1. Beak trimming is currently used in France to avoid the negative consequences of severe feather pecking (SFP). However, this practice is controversial in terms of animal welfare, and forbidden in some European countries.2. This study aimed to assess the prevalence of SFP in French laying hen farms, to describe how farmers manage this behavioural disorder and to better understand the risk factors involved.3. A study was carried out from April 2015 to June 2016. Visits were paid to 79 flocks kept in furnished cages (FC) and 80 flocks in a free-range (FR) system. All the hens had trimmed beaks and were genotypically brown. The information collected included feather cover, skin damage, beak condition, farm and poultry house characteristics, livestock performance and management.4. The prevalence of SFP in FC flocks was estimated at 32.9% (IC = 95%, [22.5; 43.3]) and the prevalence of cannibalism as 2.5% (IC = 95%, [0.7; 8.8]) at 70 weeks of age. The prevalence of SFP in FR flocks was estimated to be 23.8% (IC = 95%, [14.5; 31.1]) and the prevalence of cannibalism was 8.8% (IC = 95%, [4.3; 17.0]) at 61 weeks of age.5. In FC flocks, SFP was associated with the combination of genotype, type and length of perches, cage area per hen, type of lighting, number of hens per cage and farm location. In FR flocks, feather cover was associated with use of the outdoor run, lighting programme, genotype, farm location and date of house construction.
Subject(s)
Behavior, Animal/physiology , Chickens/physiology , Housing, Animal/classification , Animal Feed/classification , Animal Husbandry/methods , Animal Husbandry/standards , Animal Husbandry/trends , Animal Welfare , Animals , Chickens/classification , Chickens/genetics , Eating/physiology , Feathers , Female , France , Genotype , Housing, Animal/standards , Linear Models , Oviposition/physiology , Pain/etiology , Pain/veterinary , Surveys and QuestionnairesABSTRACT
Widespread anthelmintic resistance in small ruminants is a constraint on the profitability of the meat/wool industry. Limited published data is available on the prevalence and efficacy of anthelmintics, particularly in Australia where parasites affecting ruminant systems vary greatly between geographic regions. This paper reports on the anthelmintic resistance status in a temperate region of Victoria, Australia, a major sheep producing state largely affected by Trichostrongylus species and Teladorsagia circumcincta. The prevalence of anthelmintic resistance to any product was high (71%), with farms reporting varying levels of drug efficacies (21-100%). Resistance to older chemical groups (i.e. fenbendazole and levamisole) and single active macrocyclic lactone treatments was higher than newer chemical groups and combination treatments. This report provides clarity on anthelmintic resistance in the temperate region of Victoria and more importantly suggests that more comprehensive, regional specific anthelmintic resistance studies are required to understand the real level of chemical resistance threatening the effective control of worms.
Subject(s)
Animal Husbandry/methods , Anthelmintics/pharmacology , Drug Resistance , Helminthiasis, Animal/parasitology , Sheep Diseases/parasitology , Animal Husbandry/trends , Animals , Anthelmintics/therapeutic use , Farms/organization & administration , Farms/trends , Feces/parasitology , Female , Helminthiasis, Animal/drug therapy , Helminthiasis, Animal/epidemiology , Parasite Egg Count/veterinary , Prevalence , Sheep , Sheep Diseases/drug therapy , Sheep Diseases/epidemiology , Victoria/epidemiologyABSTRACT
Austrian beekeepers frequently suffered severe colony losses during the last decade similar to trends all over Europe. This first surveillance study aimed to describe the health status of Austrian bee colonies and to analyze the reasons for losses for both the summer and winter season in Austria. In this study 189 apiaries all over Austria were selected using a stratified random sampling approach and inspected three times between July 2015 and spring 2016 by trained bee inspectors. The inspectors made interviews with the beekeepers about their beekeeping practice and the history of the involved colonies. They inspected a total of 1596 colonies for symptoms of nine bee pests and diseases (four of them notifiable diseases) and took bee samples for varroa mite infestation analysis. The most frequently detected diseases were three brood diseases: Varroosis, Chalkbrood and Sacbrood. The notifiable bee pests Aethina tumida and Tropilaelaps spp. were not detected. During the study period 10.8% of the 1596 observed colonies died. Winter proved to be the most critical season, in which 75% of the reported colony losses happened. Risks for suffering summer losses increased significantly, when colonies were weak in July, had queen problems or a high varroa mite infestation level on bees in July. Risks for suffering winter losses increased significantly, when the colonies had a high varroa mite infestation level on bees in September, were weak in September, had a queen older than one year or the beekeeper had few years of beekeeping experience. However, the effect of a high varroa mite infestation level in September had by far the greatest potential to raise the winter losses compared to the other significant factors.
Subject(s)
Animal Husbandry/methods , Beekeeping/trends , Mite Infestations/economics , Animal Husbandry/trends , Animals , Austria , Beekeeping/methods , Bees , Conservation of Natural Resources , Health Status , Honey , Risk Factors , Varroidae/pathogenicityABSTRACT
Animal husbandry is believed to predate farming of crops, and remains a core component of most agricultural systems. Historic breeding strategies were based largely on visual observation, crossing animals that were perceived to display enhanced merit. Advances in sequencing capacity coupled with reduced costs have allowed genomic selection tools to deliver significant contribution to breeding regimes. The application of genome editors to make specific changes to livestock genomes has the potential to deliver additional benefits.
Subject(s)
Crops, Agricultural/genetics , Gene Editing/trends , Genomics , Animal Husbandry/trends , Breeding , Crops, Agricultural/growth & development , Genetic Engineering/trends , Genome/genetics , HumansABSTRACT
Foot and mouth disease (FMD) is a major animal health problem within Southeast Asia (SEA). Although Indonesia and more recently the Philippines have achieved freedom from FMD, the disease remains endemic on continental SEA. Control of FMD within SEA would increase access to markets in more developed economies and reduce lost productivity in smallholder and emerging commercial farmer settings. However, despite many years of vaccination by individual countries, numerous factors have prevented the successful control of FMD within the region, including unregulated 'informal' transboundary movement of livestock and their products, difficulties implementing vaccination programmes, emergence of new virus topotypes and lineages, low-level technical capacity and biosecurity at national levels, limited farmer knowledge on FMD disease recognition, failure of timely outbreak reporting and response, and limitations in national and international FMD control programmes. This paper examines the published research of FMD in the SEA region, reviewing the history, virology, epidemiology and control programmes and identifies future opportunities for FMD research aimed at the eventual eradication of FMD from the region.
Subject(s)
Animal Husbandry/methods , Biomedical Research/trends , Communicable Disease Control/methods , Communicable Disease Control/organization & administration , Foot-and-Mouth Disease/epidemiology , Foot-and-Mouth Disease/prevention & control , Veterinary Medicine/trends , Animal Husbandry/trends , Animals , Asia, Southeastern/epidemiology , Biomedical Research/history , Communicable Disease Control/history , Endemic Diseases , Foot-and-Mouth Disease/history , History, 20th Century , History, 21st Century , Veterinary Medicine/historyABSTRACT
Elucidating the mechanism underlying the transmission of metabolic disease to subsequent generations requires robust preclinical mouse breeding strategies. Western diets rich in fat and carbohydrates are contributing factors in the rise of diabetes and obesity rates worldwide. Therefore, determining the impact of Western diets consumed by parents on offspring and future generations is critical for understanding the perpetuation of these diseases. Specifically, epigenetic regulation and transgenerational inheritance of metabolic disease is an emerging field of study requiring robust murine models. However, a major challenge to transgenerational studies is offspring mortality, exacerbated by maternal stress during pregnancy. Here, we describe a challenge experienced in our metabolic research in Western diet-fed female mice leading to the loss of litters via pup mortality and cannibalism by the mother. Furthermore, our study evaluates various breeding schemes with pregnancy efficiency and refined husbandry techniques to overcome pup mortality and infanticide, to characterize dams' and pups' metabolic characteristics, and to determine the impact on physiology of dams under detailed breeding schemes.