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https://www.readbyqxmd.com/read/29791493/agricultural-matrices-affect-ground-ant-assemblage-composition-inside-forest-fragments
#1
Diego Santana Assis, Iracenir Andrade Dos Santos, Flavio Nunes Ramos, Katty Elena Barrios-Rojas, Jonathan David Majer, Evaldo Ferreira Vilela
The establishment of agricultural matrices generally involves deforestation, which leads to fragmentation of the remaining forest. This fragmentation can affect forest dynamics both positively and negatively. Since most animal species are affected, certain groups can be used to measure the impact of such fragmentation. This study aimed to measure the impacts of agricultural crops (matrices) on ant communities of adjacent lower montane Atlantic rainforest fragments. We sampled nine forest fragments at locations surrounded by different agricultural matrices, namely: coffee (3 replicates); sugarcane (3); and pasture (3)...
2018: PloS One
https://www.readbyqxmd.com/read/29786525/on-farm-mortality-and-related-risk-factors-in-estonian-dairy-cows
#2
Kaari Reimus, Toomas Orro, Ulf Emanuelson, Arvo Viltrop, Kerli Mõtus
Mortality (unassisted death and euthanasia) reflects the health and welfare state of the cows and is associated with undesirable financial consequences for the farmer. The objective of this retrospective observational study was to identify risk factors associated with on-farm mortality in dairy cows. Data for a study period between January 1, 2013 and December 31, 2015 were retrieved from the Estonian Agricultural Registers and Information Board and Estonian Livestock Performance Recording, Ltd. Cows from milk-recording herds with ≥20 cow-years were included...
July 1, 2018: Preventive Veterinary Medicine
https://www.readbyqxmd.com/read/29785263/methodologies-on-estimating-the-energy-requirements-for-maintenance-and-determining-the-net-energy-contents-of-feed-ingredients-in-swine-a-review-of-recent-work
#3
REVIEW
Zhongchao Li, Hu Liu, Yakui Li, Zhiqian Lv, Ling Liu, Changhua Lai, Junjun Wang, Fenglai Wang, Defa Li, Shuai Zhang
In the past two decades, a considerable amount of research has focused on the determination of the digestible (DE) and metabolizable energy (ME) contents of feed ingredients fed to swine. Compared with the DE and ME systems, the net energy (NE) system is assumed to be the most accurate estimate of the energy actually available to the animal. However, published data pertaining to the measured NE content of ingredients fed to growing pigs are limited. Therefore, the Feed Data Group at the Ministry of Agricultural Feed Industry Centre (MAFIC) located at China Agricultural University has evaluated the NE content of many ingredients using indirect calorimetry...
2018: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/29782527/detection-of-influenza-a-virus-in-aerosols-of-vaccinated-and-non-vaccinated-pigs-in-a-warm-environment
#4
Victor Neira, Matt Allerson, Cesar Corzo, Marie Culhane, Aaron Rendahl, Montserrat Torremorell
The 2009 influenza pandemic, the variant H3N2v viruses in agricultural fairs and the zoonotic poultry H5N9 infections in China have highlighted the constant threat that influenza A viruses (IAV) present to people and animals. In this study we evaluated the effect of IAV vaccination on aerosol shedding in pigs housed in warm environmental conditions. Thirty-six, three-week old weaned pigs were obtained from an IAV negative herd and were randomly allocated to one of 4 groups: 1) a homologous vaccine group, 2) a heterologous multivalent vaccine group, 3) a heterologous monovalent group and, 4) a non-vaccinated group...
2018: PloS One
https://www.readbyqxmd.com/read/29779495/closing-the-phosphorus-cycle-in-a-food-system-insights-from-a-modelling-exercise
#5
H R J van Kernebeek, S J Oosting, M K van Ittersum, R Ripoll-Bosch, I J M de Boer
Mineral phosphorus (P) used to fertilise crops is derived from phosphate rock, which is a finite resource. Preventing and recycling mineral P waste in the food system, therefore, are essential to sustain future food security and long-term availability of mineral P. The aim of our modelling exercise was to assess the potential of preventing and recycling P waste in a food system, in order to reduce the dependency on phosphate rock. To this end, we modelled a hypothetical food system designed to produce sufficient food for a fixed population with a minimum input requirement of mineral P...
May 21, 2018: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/29778188/national-surveillance-plan-for-infectious-bovine-rhinotracheitis-ibr-in-autochthonous-italian-cattle-breeds-results-of-first-year-of-activity
#6
Carmen Maresca, Eleonora Scoccia, Annalisa Dettori, Andrea Felici, Roberta Guarcini, Stefano Petrini, Andrea Quaglia, Giovanni Filippini
Infectious bovine rhinotracheitis (IBR)/infectious pustular vulvovaginitis (IPV) caused by Bovine alphaherpesvirus 1 (BoHV-1) is a significant disease in domestic and wild cattle. In June 2015, the Ministry of Agriculture, Food and Forestry in Italy approved a national surveillance plan to control and eradicate IBR in beef cattle breeds. The objective of this study was to evaluate the results of the first year of the IBR voluntary surveillance plan in Italy. The aim of the plan is to eradicate IBR in all bovines recorded in the National Herd Book for Italian beef cattle breeds over six years...
June 2018: Veterinary Microbiology
https://www.readbyqxmd.com/read/29778080/atrazine-xenobiotic-nuclear-receptor-interactions-induce-cardiac-inflammation-and-endoplasmic-reticulum-stress-in-quail-coturnix-coturnix-coturnix
#7
Xue-Nan Li, Yu-Zhu Zuo, Lei Qin, Wei Liu, Yan-Hua Li, Jin-Long Li
Atrazine (ATR) is one of the most extensively used herbicide that eventually leaches into groundwater and surface water from agricultural areas. Exposure to ATR does harm to the health of human and animals, especially the heart. However, ATR exposure caused cardiotoxicity in bird remains unclear. To evaluate ATR-exerted potential cardiotoxicity in heart, quail were exposed with 0, 50, 250, and 500 mg/kg BW/day ATR by gavage treatment for 45 days. Cardiac histopathological alternation was observed in ATR-induced quail...
May 9, 2018: Chemosphere
https://www.readbyqxmd.com/read/29775944/alterations-of-cytochrome-p450-and-the-occurrence-of-persistent-organic-pollutants-in-tilapia-caged-in-the-reservoirs-of-the-igua%C3%A3-u-river
#8
F Y Yamamoto, G D Diamante, M S Santana, D R Santos, R Bombardeli, C C Martins, C A Oliveira Ribeiro, D Schlenk
Environmental chemicals originating from human activities, such as persistent organic pollutants (POPs), may interfere with the endocrine system of aquatic organisms. The effect of these chemicals on biota and human populations is of high public concern but remains poorly understood, especially in aquatic environments of South America. The aim of this study was to investigate the bioavailability of POPs and the related effects in caged male tilapia (Oreochromis niloticus) in four cascading reservoirs of the Iguaçu River, Southern Brazil...
May 15, 2018: Environmental Pollution
https://www.readbyqxmd.com/read/29772513/a-transition-to-white-led-increases-ecological-impacts-of-nocturnal-illumination-on-aquatic-primary-producers-in-a-lowland-agricultural-drainage-ditch
#9
Maja Grubisic, Roy H A van Grunsven, Alessandro Manfrin, Michael T Monaghan, Franz Hölker
The increasing use of artificial light at night (ALAN) has led to exposure of freshwater ecosystems to light pollution worldwide. Simultaneously, the spectral composition of nocturnal illumination is changing, following the current shift in outdoor lighting technologies from traditional light sources to light emitting diodes (LED). LEDs emit broad-spectrum white light, with a significant amount of photosynthetically active radiation, and typically a high content of blue light that regulates circadian rhythms in many organisms...
May 14, 2018: Environmental Pollution
https://www.readbyqxmd.com/read/29770376/field-studies-reveal-functions-of-chemical-mediators-in-plant-interactions
#10
REVIEW
Meredith C Schuman, Ian T Baldwin
Plants are at the trophic base of most ecosystems, embedded in a rich network of ecological interactions in which they evolved. While their limited range and speed of motion precludes animal-typical behavior, plants are accomplished chemists, producing thousands of specialized metabolites which may function to convey information, or even to manipulate the physiology of other organisms. Plants' complex interactions and their underlying mechanisms are typically dissected within the controlled environments of growth chambers and glasshouses, but doing so introduces conditions alien to plants evolved in natural environments, such as being pot-bound, and receiving artificial light with a spectrum very different from sunlight...
May 17, 2018: Chemical Society Reviews
https://www.readbyqxmd.com/read/29770051/agriculture-and-agri-food-canada-s-research-program-on-antimicrobial-resistance
#11
E Topp
A key strategy for attenuating the development of antimicrobial resistance (AMR) is ensuring judicious use of antimicrobials in human and veterinary medicine and in agriculture. Research on AMR in agriculture includes risk assessment, risk management, and identifying the role of agricultural practices in development of AMR. Risk assessment includes an impact assessment of antimicrobial use in livestock and on the environment; for example, many antimicrobials are excreted unchanged and thus reach the environment through manure application...
November 2, 2017: Canada Communicable Disease Report, Relevé des Maladies Transmissibles Au Canada
https://www.readbyqxmd.com/read/29770049/pan-canadian-framework-for-action-on-antimicrobial-resistance-and-antimicrobial-use
#12
(no author information available yet)
Antimicrobial-resistant infections are becoming more frequent and increasingly difficult to treat, and this situation is exacerbated by the widespread use of antimicrobials in both human and veterinary medicine and by the agriculture industry. As part of Canada's coordinated response to addressing antimicrobial resistance (AMR), Tackling Antimicrobial Resistance and Antimicrobial Use: A Pan-Canadian Framework for Action, was released in September 2017. The Framework is a high-level policy document that outlines the strategic objectives, outcomes and opportunities to guide collaborative action on AMR and antimicrobial use (AMU)...
November 2, 2017: Canada Communicable Disease Report, Relevé des Maladies Transmissibles Au Canada
https://www.readbyqxmd.com/read/29769137/laboratory-studies-on-the-oviposition-stimuli-of-culicoides-stellifer-diptera-ceratopogonidae-a-suspected-vector-of-orbiviruses-in-the-united-states
#13
Dinesh Erram, Nathan Burkett-Cadena
BACKGROUND: Biting midges of the genus Culicoides (Diptera: Ceratopogonidae) exert a significant impact on animal agriculture worldwide because they transmit bluetongue virus (BTV) and epizootic hemorrhagic disease virus (EHDV) to ruminants. Without effective vaccines, BTV/EHDV vector management strategies are needed, particularly in commercial white-tailed deer (WTD) facilities. However, detailed information on the ecology of midge immatures in/around cervid operations is currently lacking...
May 16, 2018: Parasites & Vectors
https://www.readbyqxmd.com/read/29768413/wild-boar-mapping-using-population-density-statistics-from-polygons-to-high-resolution-raster-maps
#14
Claudia Pittiglio, Sergei Khomenko, Daniel Beltran-Alcrudo
The wild boar is an important crop raider as well as a reservoir and agent of spread of swine diseases. Due to increasing densities and expanding ranges worldwide, the related economic losses in livestock and agricultural sectors are significant and on the rise. Its management and control would strongly benefit from accurate and detailed spatial information on species distribution and abundance, which are often available only for small areas. Data are commonly available at aggregated administrative units with little or no information about the distribution of the species within the unit...
2018: PloS One
https://www.readbyqxmd.com/read/29762053/factors-associated-with-salmonella-prevalence-in-u-s-swine-grower-finisher-operations-2012
#15
Kathe E Bjork, Victoria Fields, Lindsey P Garber, Christine A Kopral
Nontyphoidal Salmonella is an important foodborne pathogen with diverse serotypes occurring in animal and human populations. The prevalence of the organism on swine farms has been associated with numerous risk factors, and although there are strong veterinary public health controls for preventing Salmonella from entering food, there remains interest in eradicating or controlling the organism in the preharvest environment. In this study, using data collected via the U.S. Department of Agriculture (USDA) National Animal Health Monitoring System Swine 2012 study, we describe nontyphoidal Salmonella and specific serotype prevalence on U...
May 15, 2018: Foodborne Pathogens and Disease
https://www.readbyqxmd.com/read/29760887/distribution-of-alien-animal-species-richness-in-the-czech-republic
#16
Radek Gebauer, Jan Divíšek, Miloš Buřič, Martin Večeřa, Antonín Kouba, Bořek Drozd
Biogeographical barriers formed by natural forces over billions of years have been substantially disrupted by human activity, particularly in recent centuries. In response to these anthropogenic changes, global homogenization of biota is observed at an ever-increasing rate, causing environmental and economic losses as well as emerging health risks. Identifying factors underlying alien species richness is essential for prevention of future introductions and subsequent spread. In this study, we examined the effects of environmental and human-related factors on distribution of alien animal species richness in the Czech Republic (Central Europe)...
May 2018: Ecology and Evolution
https://www.readbyqxmd.com/read/29756578/endocrine-disrupting-chemical-induced-pollution-of-metabolic-pathways-a-case-of-shifting-paradigms-with-implications-for-vascular-diseases
#17
Rajiv Janardhanan
The latter half of the twentieth century has witnessed a humongous spurt in the use of synthetic chemicals in a wide variety of industrial and agricultural applications are leading to niche specific perturbations affecting every trophic level of the ecosystems due to unmitigated environmental contamination. Despite the incremental usefulness of endocrine disrupting chemicals (EDCs) such as pesticides and plasticizers, their statutory impact on environmental health is assuming worrisome proportions. The EDCs can disrupt physiological homeostasis resulting in developmental and reproductive abnormalities...
May 14, 2018: Current Drug Targets
https://www.readbyqxmd.com/read/29753825/roxarsone-exposure-jeopardizes-nitrogen-removal-and-regulates-bacterial-community-in-biological-sequential-batch-reactors
#18
Guowei Chen, Huan Liu, Wei Zhang, Baoguo Li, Li Liu, Gang Wang
Roxarsone is widely present in wastewaters of many animal farms in China. However, little is known about how long-term roxarsone exposure influences the nitrogen removal of biological wastewater treatment in agricultural settings. Here we investigated the nitrogen removal performance of a biological sequential batch reactor (SBR) and the changes of bacterial community, upon long-term roxarsone exposure. The long-term roxarsone dosing decreased the SBR nitrogen removal by 52.4%, with an immediate inhibition on denitrification and a delayed inhibition on nitrification...
May 10, 2018: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/29751574/current-status-of-mycotoxin-contamination-of-food-commodities-in-zimbabwe
#19
REVIEW
Nancy Nleya, Modupeade Christianah Adetunji, Mulunda Mwanza
Agricultural products, especially cereal grains, serve as staple foods in sub-Saharan Africa. However, climatic conditions in this region can lead to contamination of these commodities by moulds, with subsequent production of mycotoxins posing health risks to both humans and animals. There is limited documentation on the occurrence of mycotoxins in sub-Saharan African countries, leading to the exposure of their populations to a wide variety of mycotoxins through consumption of contaminated foods. This review aims at highlighting the current status of mycotoxin contamination of food products in Zimbabwe and recommended strategies of reducing this problem...
May 3, 2018: Toxins
https://www.readbyqxmd.com/read/29751305/organic-quinoa-chenopodium-quinoa-l-production-in-peru-environmental-hotspots-and-food-security-considerations-using-life-cycle-assessment
#20
Eduardo Cancino-Espinoza, Ian Vázquez-Rowe, Isabel Quispe
Quinoa is a plant that is cultivated in the Andean highlands across Peru and Bolivia. It is increasingly popular due to its high nutritive value and protein content. In particular, the cultivation of organic quinoa has grown substantially in recent years since it is the most demanded type of quinoa in the foreign market. Nevertheless, despite the interest that quinoa has generated in terms of its nutritional properties, little is known regarding the environmental profile of its production and processing. Therefore, the main objective of this study was to analyze the environmental impacts that are linked to the production and distribution of organic quinoa to the main export destinations through the application of the Life Cycle Assessment (LCA) methodology...
May 8, 2018: Science of the Total Environment
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