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https://www.readbyqxmd.com/read/28640599/a-high-throughput-dna-sequencing-approach-to-determine-sources-of-fecal-bacteria-in-a-lake-superior-estuary
#1
Clairessa M Brown, Christopher Staley, Ping Wang, Brent Dalzell, Chan Lan Chun, Michael J Sadowsky
Current microbial source tracking (MST) methods, employed to determine sources of fecal contamination in waterways, use molecular markers targeting host-associated bacteria in animal or human feces. However, there is a lack of knowledge about fecal microbiome composition in several animals and imperfect marker specificity and sensitivity. To overcome these issues, a community-based MST method has been developed. Here, we describe a study done in the Lake Superior-St. Louis River estuary using SourceTracker, a program that calculates the source contribution to an environment...
June 22, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28639938/a-pilot-study-of-large-scale-production-of-mutant-pigs-by-enu-mutagenesis
#2
Tang Hai, Chunwei Cao, Haitao Shang, Weiwei Guo, Yanshuang Mu, Shulin Yang, Ying Zhang, Qiantao Zheng, Tao Zhang, Xianlong Wang, Yu Liu, Qingran Kong, Kui Li, Dayu Wang, Meng Qi, Qianlong Hong, Rui Zhang, Xiupeng Wang, Qitao Jia, Xiao Wang, Guosong Qin, Yongshun Li, Ailing Luo, Weiwu Jin, Jing Yao, Jiaojiao Huang, Hongyong Zhang, Menghua Li, Xiangmo Xie, Xuejuan Zheng, Kenan Guo, Qinhua Wang, Shibin Zhang, Liang Li, Fei Xie, Yu Zhang, Xiaogang Weng, Zhi Yin, Kui Hu, Yimei Cong, Peng Zheng, Hailong Zou, Leilei Xin, Jihan Xia, Jinxue Ruan, Hegang Li, Weiming Zhao, Jing Yuan, Zizhan Liu, Weiwang Gu, Ming Li, Yong Wang, Hongmei Wang, Shiming Yang, Zhonghua Liu, Hong Wei, Jianguo Zhao, Qi Zhou, Anming Meng
N-ethyl-N-nitrosourea (ENU) mutagenesis is a powerful tool to efficiently generate large scale of mutants and discover genes with novel functions at the whole-genome level in C. elegans, flies, zebrafish and mice, but has never been tried in large model animals. In the current study, we reported a successful systematic three-generation ENU mutagenesis screening in pigs with the establishment of Chinese Swine Mutagenesis Consortium. A total of 6,770 G1 and 6,800 G3 pigs were screened, 36 dominant and 91 recessive novel pig families with various phenotypes were established...
June 22, 2017: ELife
https://www.readbyqxmd.com/read/28639244/veterinary-public-health-in-italy-from-healthy-animals-to-healthy-food-contribution-to-improve-economy-in-developing-countries
#3
Margherita Cacaci, Rossella Colomba Lelli
The role of the veterinarian as a public health officer is intrinsic to the history and the culture of veterinary organization in Italy. The Veterinary service being part of the Health administration since the birth of the Italian State in the XIX Century. In the second half of the last century the birth of the Italian National Health Service confirmed that the function of the Italian veterinary service was to analyze and reduce the risks for the human population connected to the relationship man-animal-environment, animal health, food safety and security...
June 22, 2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28638960/comparative-diagnostic-evaluation-of-omp31-gene-based-taqman%C3%A2-real-time-pcr-assay-with-visual-lamp-assay-and-indirect-elisa-for-caprine-brucellosis
#4
Suman Saini, V K Gupta, K Gururaj, D D Singh, R V S Pawaiya, N K Gangwar, A K Mishra, Deepak Dwivedi, Dimple Andani, Ashok Kumar, T K Goswami
Brucellosis is one of the leading causes of abortion in domestic animals that imposes costs on both economy and society. The disease is highly zoonotic and poses risk to animal handlers due to its zoonotic nature. It causes stillbirth, loss of kids and abortion in last term of pregnancy. Reproductive damage includes infertility in does and orchitis and epididymitis in breeding bucks, which result in high financial losses to farmers and the agriculture industry as a whole. It requires highly sensitive and specific assays to diagnose the disease at field level...
June 21, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28638874/the-use-of-plants-to-protect-plants-and-food-against-fungal-pathogens-a-review
#5
D S S Shuping, J N Eloff
BACKGROUND: Plant fungal pathogens play a crucial role in the profitability, quality and quantity of plant production. These phytopathogens are persistent in avoiding plant defences causing diseases and quality losses around the world that amount to billions of US dollars annually. To control the scourge of plant fungal diseases, farmers have used fungicides to manage the damage of plant pathogenic fungi. Drawbacks such as development of resistance and environmental toxicity associated with these chemicals have motivated researchers and cultivators to investigate other possibilities...
2017: African Journal of Traditional, Complementary, and Alternative Medicines: AJTCAM
https://www.readbyqxmd.com/read/28636972/assessing-landowners-attitudes-toward-wild-hogs-and-support-for-control-options
#6
Carlotta A Caplenor, Neelam C Poudyal, Lisa I Muller, Chuck Yoest
Wild hogs (Sus scrofa) are an invasive species with destructive habits, particularly rooting and wallowing, which can directly impact agricultural crops, pasture land, and water quality. Considering wild hogs are widely dispersed across the landscape, they are extremely difficult to control. Disagreements can arise among different stakeholders over whether and how their populations should be managed. The purpose of this article was to examine Tennessee, United States landowners' attitudes toward wild hogs, to compare acceptability of control methods, and to evaluate factors significantly influencing public support for regulations to control wild hogs...
June 18, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28635652/fucaceae-a-source-of-bioactive-phlorotannins
#7
REVIEW
Marcelo D Catarino, Artur M S Silva, Susana M Cardoso
Fucaceae is the most dominant algae family along the intertidal areas of the Northern Hemisphere shorelines, being part of human customs for centuries with applications as a food source either for humans or animals, in agriculture and as remedies in folk medicine. These macroalgae are endowed with several phytochemicals of great industrial interest from which phlorotannins, a class of marine-exclusive polyphenols, have gathered much attention during the last few years due to their numerous possible therapeutic properties...
June 21, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28633114/do-glucosinolate-hydrolysis-products-reduce-nitrous-oxide-emissions-from-urine-affected-soil
#8
S F Balvert, J Luo, L A Schipper
New Zealand agriculture is predominantly comprised of pastoral grazing systems and deposition of animal excreta during grazing has been identified as a major source of nitrous oxide (N2O) emissions. Nitrification inhibitors have been shown to significantly reduce nitrous oxide emissions from grazing pastoral systems, and some plants have been identified as having nitrification inhibiting properties. Brassica crops are one such example as they contain the secondary metabolite glucosinolate (GLS) whose hydrolysis products are thought to slow soil nitrogen cycling...
June 17, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28631229/do-terrestrial-animals-avoid-areas-close-to-turbines-in-functioning-wind-farms-in-agricultural-landscapes
#9
Rafał Łopucki, Daniel Klich, Sylwia Gielarek
Most studies on the effects of wind energy on animals have focused on avian and bat activity, habitat use, and mortality, whereas very few have been published on terrestrial, non-volant wildlife. In this paper, we studied the utilization of functioning wind farm areas by four terrestrial animals common to agricultural landscapes: European roe deer, European hare, red fox, and the common pheasant. Firstly, we expected that the studied animals do not avoid areas close to turbines and utilize the whole area of functioning wind farms with a frequency similar to the control areas...
July 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28628813/removal-of-antibiotics-during-the-anaerobic-digestion-of-pig-manure
#10
Lu Feng, Mònica Escolà Casas, Lars Ditlev Mørck Ottosen, Henrik Bjarne Møller, Kai Bester
Antibiotics are frequently used in animals to treat sickness and prevent infection especially in industrial meat production. Some of the antibiotics cannot be completely metabolized and, as an unavoidable result, are excreted and thus end up in manure which is then spread in the environment. Currently increasing amounts of manure is used in biogas production before spreading the residuals on agricultural fields. In this study, the removal patterns of sulfonamides (sulfadiazine, sulfamethizole, sulfamethoxazole) and macrolides (clarithromycin, erythromycin), as well as trimethoprim, were investigated during the anaerobic digestion of pig manure...
June 16, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28625995/novel-antibiotic-resistance-determinants-from-agricultural-soil-exposed-to-antibiotics-widely-used-in-human-medicine-and-animal-farming
#11
Calvin Ho-Fung Lau, Kalene van Engelen, Stephen Gordon, Justin Renaud, Edward Topp
Antibiotic resistance has emerged globally as one of the biggest threats to human and animal health. Although the excessive use of antibiotics is recognized for accelerating the selection for resistance, there is a growing body of evidence suggesting that natural environments are "hotspots" for the development of both ancient and contemporary resistance mechanisms. Given that pharmaceuticals can be entrained onto agricultural land through anthropogenic activities, this could be a potential driver for the emergence and dissemination of resistance in soil bacteria...
June 16, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28624520/dissecting-the-chloroplast-proteome-of-chickpea-cicer-arietinum-l-provides-new-insights-into-classical-and-non-classical-functions
#12
Nilesh Vikram Lande, Pratigya Subba, Pragya Barua, Dipak Gayen, T S Keshava Prasad, Subhra Chakraborty, Niranjan Chakraborty
Chloroplast, the energy organelle unique to plant cells, is a dynamic entity which integrates an array of metabolic pathways and serves as first level for energy conversion for the entire ecological hierarchy. Increasing amount of sequence data and evolution of mass spectrometric approaches has opened up new avenues for opportune exploration of the global proteome of this organelle. In our study, we aimed at generation of a comprehensive catalogue of chloroplast proteins in a grain legume, chickpea and provided a reference proteome map...
June 14, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/28618714/lsp-family-proteins-regulate-antibiotic-biosynthesis-in-lysobacter-enzymogenes-oh11
#13
Ruping Wang, Huiyong Xu, Yangyang Zhao, Juan Zhang, Gary Y Yuen, Guoliang Qian, Fengquan Liu
Ax21 family proteins have been shown to play regulatory roles in plant- and animal-pathogenic species in the bacterial family Xanthomonadaceae, but the protein have not been investigated previously in the non-pathogenic members of this bacterial family. Lysobacter enzymogenes, is a non-pathogenic species known for its capacity as a biocontrol agent of plant pathogens. It is also noted for the production of antimicrobial secondary metabolites, heat stable antifungal factor (HSAF) and WAP-8294A2, that have potential for agricultural and pharmaceutical applications...
December 2017: AMB Express
https://www.readbyqxmd.com/read/28616489/multistate-outbreak-of-human-salmonella-typhimurium-infections-linked-to-live-poultry-from-agricultural-feed-stores-and-mail-order-hatcheries-united-states-2013
#14
Tara C Anderson, Thai-An Nguyen, Jennifer K Adams, Nancy M Garrett, Cheryl A Bopp, Joe B Baker, Carrie McNeil, Paul Torres, Paul J Ettestad, Matthew M Erdman, Denise L Brinson, Thomas M Gomez, Casey Barton Behravesh
Live poultry-associated salmonellosis is an emerging public health issue in the United States. Public and animal health officials collaborated to investigate one of the largest (356 cases, 39 states) of these outbreaks reported to date. A case was defined as illness in a person infected with the outbreak strain of Salmonella Typhimurium with illness onset between 1 March and 22 October 2013. The median patient age was seven years (range: < 1-87 years); 58% of ill persons were children ≤ 10 years, 51% were female, 25% were hospitalized; 189 (76%) of 250 patients reported live poultry exposure in the week before illness; and 149 (95%) of 157 reported purchasing live poultry from agricultural feed stores...
December 2016: One Health
https://www.readbyqxmd.com/read/28612293/nowhere-to-run-rabbit-the-cold-war-calculus-of-disease-ecology
#15
Warwick Anderson
During the cold war, Frank Fenner (protégé of Macfarlane Burnet and René Dubos) and Francis Ratcliffe (associate of A. J. Nicholson and student of Charles Elton) studied mathematically the coevolution of host resistance and parasite virulence when myxomatosis was unleashed on Australia's rabbit population. Later, Robert May called Fenner the "real hero" of disease ecology for his mathematical modeling of the epidemic. While Ratcliffe came from a tradition of animal ecology, Fenner developed an ecological orientation in World War II through his work on malaria control (with Ratcliffe and Ian Mackerras, among others)-that is, through studies of tropical medicine...
June 2017: History and Philosophy of the Life Sciences
https://www.readbyqxmd.com/read/28600834/engineering-crop-nutrient-efficiency-for-sustainable-agriculture
#16
REVIEW
Liyu Chen, Hong Liao
Increasing crop yields can provide food, animal feed, bioenergy feedstocks, and biomaterials to meet increasing global demand; however, the methods used to increase yield can negatively affect sustainability. For example, application of excess fertilizer can generate and maintain high yields but also increases input costs and contributes to environmental damage through eutrophication, soil acidification, and air pollution. Improving crop nutrient efficiency can improve agricultural sustainability by increasing yield while decreasing input costs and harmful environmental effects...
June 10, 2017: Journal of Integrative Plant Biology
https://www.readbyqxmd.com/read/28599616/a-survey-of-methods-used-for-antimicrobial-susceptibility-testing-in-veterinary-diagnostic-laboratories-in-the-united-states
#17
David A Dargatz, Matthew M Erdman, Beth Harris
Antimicrobial resistance is a serious threat to animal and human health worldwide, requiring a collaborative, holistic approach. The U.S. Government has developed a national strategy to address antimicrobial resistance, with one component being to monitor antimicrobial resistance in agricultural settings. We developed a survey to collect information about antimicrobial susceptibility testing (AST) from the veterinary diagnostic laboratory community in the United States, assessing current practices and technologies and determining how AST information is shared...
June 1, 2017: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/28599206/mercury-flow-through-an-asian-rice-based-food-web
#18
Kasun S Abeysinghe, Guangle Qiu, Eben Goodale, Christopher W N Anderson, Kevin Bishop, David C Evers, Morgan W Goodale, Holger Hintelmann, Shengjie Liu, Christos Mammides, Rui-Chang Quan, Jin Wang, Pianpian Wu, Xiao-Hang Xu, Xiao-Dong Yang, Xinbin Feng
Mercury (Hg) is a globally-distributed pollutant, toxic to humans and animals. Emissions are particularly high in Asia, and the source of exposure for humans there may also be different from other regions, including rice as well as fish consumption, particularly in contaminated areas. Yet the threats Asian wildlife face in rice-based ecosystems are as yet unclear. We sought to understand how Hg flows through rice-based food webs in historic mining and non-mining regions of Guizhou, China. We measured total Hg (THg) and methylmercury (MeHg) in soil, rice, 38 animal species (27 for MeHg) spanning multiple trophic levels, and examined the relationship between stable isotopes and Hg concentrations...
June 6, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28585807/isotope-tracing-of-long-term-cadmium-fluxes-in-an-agricultural-soil
#19
Mahdiyeh Salmanzadeh, Adam Hartland, Claudine H Stirling, Megan R Balks, Louis A Schipper, Chaitanya Joshi, Ejin George
Globally widespread phosphate fertilizer applications have resulted in long-term increases in the concentration of cadmium (Cd) in soils. The accumulation of this biotoxic, and bioaccumulative metal presents problems for the management of soil-plant-animal systems, because the magnitude and direction of removal fluxes (e.g., crop uptake, leaching) have been difficult to estimate. Here, Cd isotopic compositions (δ(114/110)Cd) of archived fertilizer and soil samples from a 66 year-long agricultural field trial in Winchmore, New Zealand, were used to constrain the Cd soil mass balance between 1959 and 2015 AD, informing future soil Cd accumulation trajectories...
June 16, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28585423/copper-modified-palygorskite-is-effective-in-preventing-and-treating-diarrhea-caused-by-salmonella-typhimurium
#20
Da-Wei Yao, Ze-Zhong Yu, Na Li, Yu-Nong Hou, Jia-Rong Xu, De-Ji Yang
The aim of this research was to develop effective alternative therapies to reduce antibiotic use in animal agriculture. In this study, the efficacy of copper-modified palygorskite (CM-Pal) in preventing diarrhea caused by Salmonella was specifically examined both in vitro and in vivo. The CM-Pal was prepared with palygorskite (Pal) and copper nitrate. The antibacterial activity of the CM-Pal was detected by comparing the differences in cell numbers on plate count agar before and after adding the CM-Pal to Salmonella typhimurium cultures...
June 2017: Journal of Zhejiang University. Science. B
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