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https://www.readbyqxmd.com/read/28436343/implications-of-feed-concentrate-reduction-in-organic-grassland-based-dairy-systems-a-long-term-on-farm-study
#1
F Leiber, I K Schenk, A Maeschli, S Ivemeyer, J O Zeitz, S Moakes, P Klocke, P Staehli, C Notz, M Walkenhorst
In response to increasing efforts for reducing concentrate inputs to organic dairy production in grassland-rich areas of Europe, a long-term study was conducted, which assessed the impacts of concentrate reductions on cows' performance, health, fertility and average herd age. In total, 42 Swiss commercial organic dairy cattle farms were monitored over 6 years ('Y0', 2008/09 until 'Y5', 2013/14). In comparison with overall data of Swiss herdbooks (including conventional and organic farms), the herds involved in the project had lower milk yields, similar milk solids, shorter calving intervals and higher average lactation numbers...
April 24, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/28433811/rapid-and-sensitive-detection-of-salmonid-alphavirus-using-taqman-real-time-pcr
#2
Wen Shi, Aochen Song, Shuai Gao, Yuting Wang, Lijie Tang, Yigang Xu, Tong Ren, Yijing Li, Min Liu
Salmonid alphavirus (SAV) infection has led to the spread of salmon pancreas disease (PD) and sleeping disease (SD) to salmonids in several countries in Europe, resulting in tremendous economic losses to the fish farming industry. Recently, with increases in the fish import trade, many countries in which SAV has been unreported, such as China, may be seriously threatened by these diseases. It is therefore necessary to develop efficient detection methods for the prevention and diagnosis of SAV infection. In this study, a rapid and sensitive TaqMan real-time PCR method was established and assessed for this purpose...
April 19, 2017: Molecular and Cellular Probes
https://www.readbyqxmd.com/read/28414586/development-and-validation-of-monoclonal-antibody-based-antigen-capture-elisa-for-detection-of-group-a-porcine-rotavirus
#3
Atta Muhammad Memon, Anjuman Ara Bhuyan, Fangzhou Chen, Xiaozhen Guo, Harish Menghwar, Yinxing Zhu, Xugang Ku, Shuhua Chen, Zhonghua Li, Qigai He
Porcine rotavirus-A (PoRVA) is one of the common causes of mild to severe dehydrating diarrhea, leading to losses in weaning and postweaning piglets. A rapid, highly specific, and sensitive antigen-capture enzyme-linked immunosorbent assay (AC-ELISA) was developed for detection of PoRVA, by using VP6 (a highly conserved and antigenic protein of group-A rotavirus)-directed rabbit polyclonal antibodies (capture antibody) and murine monoclonal antibodies (detector antibody). The detection limit of AC-ELISA was found to be equal to that of conventional reverse transcription-polymerase chain reaction (RT-PCR; about 10(2...
April 17, 2017: Viral Immunology
https://www.readbyqxmd.com/read/28413249/agricultural-input-credit-in-sub-saharan-africa-telling-myth-from-facts
#4
Serge G Adjognon, Lenis Saweda O Liverpool-Tasie, Thomas A Reardon
Recent evidence shows that many Sub-Saharan African farmers use modern inputs, but there is limited information on how these inputs are financed. We use recent nationally representative data from four countries to explore input financing and the role of credit therein. A number of our results contradict "conventional wisdom" found in the literature. Our results consistently show that traditional credit use, formal or informal, is extremely low (across credit type, country, crop and farm size categories). Instead, farmers primarily finance modern input purchases with cash from nonfarm activities and crop sales...
February 2017: Food Policy
https://www.readbyqxmd.com/read/28412765/advanced-value-chain-collaboration-in-ghana-s-cocoa-sector-an-entry-point-for-integrated-landscape-approaches
#5
Howard Deans, Mirjam A F Ros-Tonen, Mercy Derkyi
Value chain analyses have focused mainly on collaboration between chain actors, often neglecting collaboration "beyond the chain" with non-chain actors to tackle food security, poverty and sustainability issues in the landscapes in which these value chains are embedded. Comparing conventional and advanced value chain collaborations involving small-scale cocoa farmers in Ghana, this paper analyzes the merits of a more integrated approach toward value chain collaboration. It particularly asks whether advanced value chain collaboration targeting cocoa-producing areas potentially offers an entry point for implementing a landscape approach...
April 15, 2017: Environmental Management
https://www.readbyqxmd.com/read/28405459/field-efficacy-of-porcilis%C3%A2-pcv-m-hyo-versus-a-licensed-commercially-available-vaccine-and-placebo-in-the-prevention-of-prdc-in-pigs-on-a-french-farm-a-randomized-controlled-trial
#6
Eric Pagot, Martial Rigaut, David Roudaut, Luca Panzavolta, Rika Jolie, Didier Duivon
BACKGROUND: A controlled, randomised, and blinded trial performed on a conventional French farrow-to-finish farm compared the efficacy of a one-shot bivalent ready to use vaccine, Porcilis® PCV M. Hyo (group PCVM), to that of two commercial vaccines (Ingelvac® Circoflex® + Ingelvac® Mhyo, group ICIM), and to a placebo (group CTL), in preventing the health and economic impacts of Porcine Respiratory Disease Complex (PRDC). MATERIAL & METHODS: In this small-scale clinical study, all piglets in each group were administered the vaccine/placebo at weaning age (27 days old)...
2017: Porcine Health Management
https://www.readbyqxmd.com/read/28399994/prevalence-and-molecular-characterization-of-staphylococcus-aureus-in-commercially-available-meat-over-a-one-year-period-in-iowa-usa
#7
Dipendra Thapaliya, Brett M Forshey, Jhalka Kadariya, Megan K Quick, Sarah Farina, Ashley O' Brien, Rajeshwari Nair, Amos Nworie, Blake Hanson, Ashley Kates, Shylo Wardyn, Tara C Smith
Methicillin-resistant Staphylococcus aureus (MRSA) is a leading cause of infectious disease morbidity and mortality. Previous studies have confirmed the presence of S. aureus, including MRSA, on raw meat products. We investigated the prevalence and molecular epidemiology of S. aureus and MRSA in commercially-distributed antibiotic-free and conventional raw meat products (n = 3290) purchased in 8 Iowa retail stores weekly for a period of one year. Isolates were characterized using spa typing, and PCR was used to detect the presence of the Panton-Valentine leukocidin (PVL) and mecA genes...
August 2017: Food Microbiology
https://www.readbyqxmd.com/read/28390936/evidence-of-campylobacter-jejuni-reduction-in-broilers-with-early-synbiotic-administration
#8
Loredana Baffoni, Francesca Gaggìa, Giuliano Garofolo, Gabriella Di Serafino, Enrico Buglione, Elisabetta Di Giannatale, Diana Di Gioia
C. jejuni is considered a food safety concern to both public health authorities and consumers since it is the leading bacterial cause of food-borne gastroenteritis in humans. A high incidence of C. jejuni in broiler flocks is often correlated to pathogen recovery in retail poultry meat, which is the main source of human infection. In this work broiler chickens were fed with a synbiotic product mixed with conventional feed using two different administration strategies. The synbiotic was formulated with the microencapsulated probiotic Bifidobacterium longum PCB133 and a xylo-oligosaccharide (XOS)...
April 3, 2017: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/28390818/product-environmental-footprint-of-strawberries-case-studies-in-estonia-and-germany
#9
Eveli Soode-Schimonsky, Klaus Richter, Gabriele Weber-Blaschke
The environmental impacts of strawberries have been assessed in several studies. However, these studies either present dissimilar results or only focus on single impact categories without offering a comprehensive overview of environmental impacts. We applied the product environmental footprint (PEF) methodology to broadly indicate the environmental impacts of various strawberry production systems in Germany and Estonia by 15 impact categories. Data for the 7 case studies were gathered from two farms with organic and two farms with conventional open field production systems in Estonia and from one farm with conventional open field and one farm with a polytunnel and greenhouse production system in Germany...
April 5, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28390724/effect-of-structural-animal-health-planning-on-antimicrobial-use-and-animal-health-variables-in-conventional-dairy-farming-in-the-netherlands
#10
David C Speksnijder, Haitske Graveland, Ineke A J M Eijck, René W M Schepers, Dick J J Heederik, Theo J M Verheij, Jaap A Wagenaar
Widespread veterinary use of antimicrobials might contribute to the increasing burden of antimicrobial resistance. Despite many successful efforts to reduce veterinary antimicrobial use in the Netherlands, antimicrobial use on a substantial number of farms has remained relatively high over the past few years. Farm-specific solutions are required to further lower antimicrobial use on these farms. Reducing the burden of animal diseases at the farm level by means of a structured approach to animal health planning could be promising...
April 5, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28389982/the-assessment-and-the-farmers-perceived-ranking-of-feed-resources-and-coping-strategies-with-feed-scarcity-in-smallholder-dairy-farming-in-selected-district-towns-of-jimma-zone-ethiopia
#11
Belay Duguma, Veronique Dermauw, Geert Janssens
Inadequate quantity and quality of feed resources are major constraints limiting milk production and reproductive performance of dairy cattle in Ethiopia. The aim of this study was to assess dairy cattle feed resources, feeding practices, the farmers' perceived ranking of feed resources, causes of feed shortage, and coping strategies to feed scarcity in smallholder dairy system in selected district towns of Jimma Zone, Ethiopia. Data were obtained by interviewing 52 randomly selected smallholder dairy farmers using structured questionnaires and through direct observations...
April 8, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28384232/higher-fish-but-lower-micronutrient-intakes-temporal-changes-in-fish-consumption-from-capture-fisheries-and-aquaculture-in-bangladesh
#12
Jessica R Bogard, Sami Farook, Geoffrey C Marks, Jillian Waid, Ben Belton, Masum Ali, Kazi Toufique, Abdulla Mamun, Shakuntala H Thilsted
Malnutrition is one of the biggest challenges of the 21st century, with one in three people in the world malnourished, combined with poor diets being the leading cause of the global burden of disease. Fish is an under-recognised and undervalued source of micronutrients, which could play a more significant role in addressing this global challenge. With rising pressures on capture fisheries, demand is increasingly being met from aquaculture. However, aquaculture systems are designed to maximise productivity, with little consideration for nutritional quality of fish produced...
2017: PloS One
https://www.readbyqxmd.com/read/28380599/estimation-of-the-energy-expenditure-of-grazing-ruminants-by-incorporating-dynamic-body-acceleration-into-a-conventional-energy-requirement-system
#13
M Miwa, K Oishi, H Anzai, H Kumagai, S Ieiri, H Hirooka
The estimation of energy expenditure (EE) of grazing animals is of great importance for efficient animal management on pasture. In the present study, a method is proposed to estimate EE in grazing animals based on measurements of body acceleration of animals in combination with the conventional Agricultural and Food Research Council (AFRC) energy requirement system. Three-dimensional body acceleration and heart rate were recorded for tested animals under both grazing and housing management. An acceleration index, vectorial dynamic body acceleration (VeDBA), was used to calculate activity allowance (AC) during grazing and then incorporate it into the AFRC system to estimate the EE (EE derived from VeDBA [EE]) of the grazing animals...
February 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28372247/pasture-feeding-conventional-cows-removes-differences-between-organic-and-conventionally-produced-milk
#14
Brigitte H Schwendel, Timothy J Wester, Patrick C H Morel, Bertram Fong, Michael H Tavendale, Craig Deadman, Nicola M Shadbolt, Don E Otter
Perceptions of production methods for organic and conventional milk are changing, with consumers prepared to pay premium prices for milk from either certified organic or conventional grass-fed cows. Our study investigated whether chemical composition differed between milk produced by these two farming systems. Sampling was conducted on two farms sets, each comprised of one organic and one conventional farm. All farms applied year-round pasture grazing. Milk samples were collected throughout the milking season and analysed for free oligosaccharides, fatty acids, major casein and whey proteins, and milk fat volatiles...
August 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28370643/organic-farming-increases-richness-of-fungal-taxa-in-the-wheat-phyllosphere
#15
Ida Karlsson, Hanna Friberg, Anna-Karin Kolseth, Christian Steinberg, Paula Persson
Organic farming is often advocated as an approach to mitigate biodiversity loss on agricultural land. The phyllosphere provides a habitat for diverse fungal communities that are important for plant health and productivity. However, it is still unknown how organic farming affects the diversity of phyllosphere fungi in major crops. We sampled wheat leaves from 22 organically and conventionally cultivated fields in Sweden, paired based on their geographical location and wheat cultivar. Fungal communities were described using amplicon sequencing and real-time PCR...
April 1, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28369335/tempo-spatial-dynamics-of-adult-plum-curculio-coleoptera-curculionidae-based-on-semiochemical-baited-trap-captures-in-blueberries
#16
Johnattan Hernandez-Cumplido, Tracy C Leskey, Robert Holdcraft, Faruque U Zaman, Noel G Hahn, Cesar Rodriguez-Saona
Plum curculio, Conotrachelus nenuphar (Herbst), has become an important pest of highbush blueberries in the northeastern United States. Here, we conducted experiments in 2010-2013 to compare the efficacy of semiochemical-baited traps for C. nenuphar versus conventional (beating cloth) sampling methods in blueberries, and to understand the seasonal abundance and distribution of C. nenuphar adults within and among blueberry fields using these traps. Black pyramid traps baited with the C. nenuphar aggregation pheromone grandisoic acid and the fruit volatile benzaldehyde caught three to four times more adults than unbaited traps without causing an increase in injury to berries in neighboring bushes...
March 20, 2017: Environmental Entomology
https://www.readbyqxmd.com/read/28366969/impact-of-reduced-tillage-on-greenhouse-gas-emissions-and-soil-carbon-stocks-in-an-organic-grass-clover-ley-winter-wheat-cropping-sequence
#17
Maike Krauss, Reiner Ruser, Torsten Müller, Sissel Hansen, Paul Mäder, Andreas Gattinger
Organic reduced tillage aims to combine the environmental benefits of organic farming and conservation tillage to increase sustainability and soil quality. In temperate climates, there is currently no knowledge about its impact on greenhouse gas emissions and only little information about soil organic carbon (SOC) stocks in these management systems. We therefore monitored nitrous oxide (N2O) and methane (CH4) fluxes besides SOC stocks for two years in a grass-clover ley - winter wheat - cover crop sequence...
February 15, 2017: Agriculture, Ecosystems & Environment
https://www.readbyqxmd.com/read/28365492/interaction-of-mycotoxin-zearalenone-with-human-serum-albumin
#18
Miklós Poór, Sándor Kunsági-Máté, Mónika Bálint, Csaba Hetényi, Zsófia Gerner, Beáta Lemli
Zearalenone (ZEN) is a mycotoxin produced mainly by Fusarium species. Fungal contamination of cereals and plants can result in the formation of ZEN, leading to its presence in different foods, animal feeds, and drinks. Because ZEN is an endocrine disruptor, it causes reproductive disorders in farm animals and hyperoestrogenic syndromes in humans. Despite toxicokinetic properties of ZEN were studied in more species, we have no information regarding the interaction of ZEN with serum albumin. Since albumin commonly plays an important role in the toxicokinetics of different toxins, interaction of ZEN with albumin has of high biological importance...
March 27, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28346980/ecological-intensification-to-mitigate-impacts-of-conventional-intensive-land-use-on-pollinators-and-pollination
#19
REVIEW
Anikó Kovács-Hostyánszki, Anahí Espíndola, Adam J Vanbergen, Josef Settele, Claire Kremen, Lynn V Dicks
Worldwide, human appropriation of ecosystems is disrupting plant-pollinator communities and pollination function through habitat conversion and landscape homogenisation. Conversion to agriculture is destroying and degrading semi-natural ecosystems while conventional land-use intensification (e.g. industrial management of large-scale monocultures with high chemical inputs) homogenises landscape structure and quality. Together, these anthropogenic processes reduce the connectivity of populations and erode floral and nesting resources to undermine pollinator abundance and diversity, and ultimately pollination services...
March 27, 2017: Ecology Letters
https://www.readbyqxmd.com/read/28342609/randomized-blinded-controlled-clinical-trial-shows-no-benefit-of-homeopathic-mastitis-treatment-in-dairy-cows
#20
Fanny Ebert, Rudolf Staufenbiel, Julia Simons, Laura Pieper
Mastitis is one of the most common diseases in dairy production, and homeopathic remedies have been used increasingly in recent years to treat it. Clinical trials evaluating homeopathy have often been criticized for their inadequate scientific approach. The objective of this triple-blind, randomized controlled trial was to assess the efficacy of homeopathic treatment in bovine clinical mastitis. The study was conducted on a conventionally managed dairy farm between June 2013 and May 2014. Dairy cows with acute mastitis were randomly allocated to homeopathy (n = 70) or placebo (n = 92), for a total of 162 animals...
March 22, 2017: Journal of Dairy Science
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