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https://www.readbyqxmd.com/read/28728123/analysis-of-sugarcane-herbicides-in-marine-turtle-nesting-areas-and-assessment-of-risk-using-in%C3%A2-vitro-toxicity-assays
#1
Hannah L Allan, Jason P van de Merwe, Kimberly A Finlayson, Jake W O'Brien, Jochen F Mueller, Frederic D L Leusch
Agricultural processes are associated with many different herbicides that can contaminate surrounding environments. In Queensland, Australia, herbicides applied to agricultural crops may pose a threat to valuable coastal habitats including nesting beaches for threatened loggerhead turtles (Caretta caretta). This study 1) measured concentrations of herbicides in the beach sand of Mon Repos, an important marine turtle nesting beach in Australia that is adjacent to significant sugarcane crops, and 2) investigated the toxicity of these herbicides to marine turtles using a cell-based assay...
July 9, 2017: Chemosphere
https://www.readbyqxmd.com/read/28727902/glucocorticoid-assessment-in-the-domestic-horse-the-impact-of-time-and-climatic-variables-on-sample-integrity
#2
K Yarnell, S L Walker
BACKGROUND: Assessment of faecal glucocorticoid metabolites (FGM) offers a non-invasive method of monitoring adrenal activity in domestic horses. Sample collection is on an opportunistic basis, and if samples are not fresh or have been exposed to the elements before they are identified, then they may not accurately reflect FGM concentration. OBJECTIVES: To explore the impact of a range of environmental conditions upon the integrity of FGM levels in equine faeces...
July 20, 2017: Equine Veterinary Journal
https://www.readbyqxmd.com/read/28727847/outstanding-micro-endemism-in-new-caledonia-more-than-one-out-of-ten-animal-species-have-a-very-restricted-distribution-range
#3
Maram Caesar, Philippe Grandcolas, Roseli Pellens
New Caledonia is a biodiversity hotspot, with an extremely high number of endemic species with narrow distribution ranges that are at high risk of extinction due to open-cast nickel mining, invasive species and seasonal man-induced fires. Mentions of micro-endemism permeate the literature on the biota of this archipelago. However, so far there has been no research comparing distribution range in different animal groups. The aim of this study is to examine the implication of different sampling effort variables in order to distinguish micro-endemicity from data deficiency, and evaluate the distribution range, frequency, and extent to which micro-endemism is common to several groups of organisms...
2017: PloS One
https://www.readbyqxmd.com/read/28727796/effects-of-health-risk-assessment-and-counselling-on-physical-activity-in-older-people-a-pragmatic-randomised-trial
#4
Anna Marie Herghelegiu, André Moser, Gabriel Ioan Prada, Stephan Born, Matthias Wilhelm, Andreas E Stuck
BACKGROUND: Interventions to increase physical activity (PA) among older community-dwelling adults may be enhanced by using multidimensional health risk assessment (HRA) as a basis for PA counselling. METHODS: The study was conducted among nondisabled but mostly frail persons 65 years of age and older at an ambulatory geriatric clinic in Bucharest, Romania. From May to July 2014, 200 participants were randomly allocated to intervention and control groups. Intervention group participants completed an initial HRA questionnaire and then had monthly counselling sessions with a geriatrician over a period of six months that were aimed at increasing low or maintaining higher PA...
2017: PloS One
https://www.readbyqxmd.com/read/28727640/no-seasonal-changes-in-cognitive-functioning-among-high-school-football-athletes-implementation-of-a-novel-electrophysiological-measure-and-standard-clinical-measures
#5
Steven P Broglio, Richelle Williams, Ashley Rettmann, Brandon Moore, James T Eckner, Sean Meehan
OBJECTIVE: To evaluate neuroelectric and cognitive function relative to a season of football participation. Cognitive and neuroelectric function declines are hypothesized to be present in football athletes. DESIGN: Observational. SETTING: Athletic fields and research laboratory. PATIENTS (OR PARTICIPANTS): Seventy-seven high school athletes (15.9 + 0.9 years, 178.6 + 7.2 cm, 74.4 + 14.7 kg, and 0.8 + 0.8 self-reported concussions) participating in football (n = 46) and noncontact sports (n = 31)...
July 14, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/28727423/seasonal-variation-of-terrigenous-pahs-along-the-marginal-seas-of-china-input-phase-partitioning-ocean-current-transport
#6
Miao-Lei Ya, Xin-Hong Wang, Yu-Ling Wu, Yong-Yu Li, Jing-Ming Yan, Chao Fang, Yan-Yan Zhao, Ran-Ran Qian, Xiao-Long Lin
To study the spatial distributions and seasonal differences of concentrations, source identification, and phase partitioning of polycyclic aromatic hydrocarbons (PAHs) in the surface water, intensive sampling was carried out along the marginal seas of China in four seasons. In the northern South China Sea (SCS), the highest PAH levels occurred in summer (July to August) and autumn (October to November). In the East China Sea (ECS) and the Yellow Sea, the highest occurred in summer (August) and winter (December)...
July 20, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28727197/influence-of-weather-on-incidence-of-bronchiolitis-in-australia-and-new-zealand
#7
Tobias Hoeppner, Meredith Borland, Franz E Babl, Jocelyn Neutze, Natalie Phillips, David Krieser, Stuart R Dalziel, Andrew Davidson, Susan Donath, Kim Jachno, Mike South, Amanda Williams, Guicheng Zhang, Ed Oakley
AIM: We aimed to examine the impact of weather on hospital admissions with bronchiolitis in Australia and New Zealand. METHODS: We collected data for inpatient admissions of infants aged 2-12 months to seven hospitals in four cities in Australia and New Zealand from 2009 until 2011. Correlation of hospital admissions with minimum daily temperature, wind speed, relative humidity and rainfall was examined using linear, Poisson and negative binomial regression analyses as well as general estimated equation models...
July 20, 2017: Journal of Paediatrics and Child Health
https://www.readbyqxmd.com/read/28727195/patterns-of-divergence-across-the-geographic-and-genomic-landscape-of-a-butterfly-hybrid-zone-associated-with-a-climatic-gradient
#8
Sean F Ryan, Michael C Fontaine, Mark J Scriber, Michael E Pfrender, Shawn T O'Neil, Jessica J Hellmann
Hybrid zones are a valuable tool for studying the process of speciation and for identifying the genomic regions undergoing divergence and the ecological (extrinsic) and non-ecological (intrinsic) factors involved. Here, we explored the genomic and geographic landscape of divergence in a hybrid zone between Papilio glaucus and Papilio canadensis. Using a genome scan of 28,417 ddRAD SNPs, we identified genomic regions under possible selection and examined their distribution in the context of previously identified candidate genes for ecological adaptations...
July 20, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28727153/month-of-birth-is-associated-with-the-subsequent-diagnosis-of-autoimmune-hypothyroidism-a-nationwide-danish-register-based-study
#9
Marianne Thvilum, Frans Brandt, Thomas Heiberg Brix, Laszlo Hegedüs
BACKGROUND: The triggering of thyroid autoimmunity in the genetically susceptible remains a conundrum. Environmental exposures during gestation and/or early postnatally have proponents, as suggested in diabetes mellitus, with a higher incidence of births during spring and summer. Whether the development of autoimmune hypothyroidism (AIT) is influenced by month or season of birth is less clear. METHOD: Nationwide cohort study of 111,565 individuals diagnosed with AIT and four euthyroid controls per case, matched according to age and sex, were identified from Danish health registers...
July 20, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/28727138/partial-diel-migration-a-facultative-migration-underpinned-by-long-term-inter-individual-variation
#10
Philip M Harrison, Lee F G Gutowsky, Eduardo G Martins, David A Patterson, Steven J Cooke, Michael Power
The variations in migration that comprise partial diel migrations, putatively occur entirely as a consequence of behavioural flexibility. However, seasonal partial migrations are increasingly recognised to be mediated by a combination of reversible plasticity in response to environmental variation and individual variation due to genetic and environmental effects. Here, we test the hypothesis that while partial diel migration heterogeneity occurs primarily due to short-term within-individual flexibility in behaviour, long-term individual differences in migratory behaviour also underpin this migration variation...
June 14, 2017: Journal of Animal Ecology
https://www.readbyqxmd.com/read/28727080/management-of-native-warm-season-grasses-for-beef-cattle-and-biomass-production-in-the-mid-south-usa
#11
W M Backus, J C Waller, G E Bates, C A Harper, A Saxton, D W McIntosh, J Birckhead, P D Keyser
Native grasses, such as switchgrass (SG; L.), big bluestem (BB; Vitman), indiangrass (IG; Nash), and eastern gamagrass (EG; [L.] L.) may be capable of providing desirable summer forage for cattle as well as a source of biomass for renewable energy. To evaluate that potential, experiments were conducted at 2 locations in Tennessee comparing weaned beef () steers (268 ± 25 kg initial BW) during early-season grazing (Early; 30 d, typically corresponding to May, followed by postdormancy biomass harvest) and full-season grazing (Full, mean duration = 98 d)...
July 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28727014/further-testing-of-melatonin-receptor-1a-for-out-of-season-reproduction-in-the-cornell-flock-and-allelic-frequencies-compared-with-romney-sheep
#12
C J Posbergh, R J Murphy, M L Thonney
Sheep are seasonally polyestrous breeders, meaning they breed when day length shortens in the autumn. Ewes respond to changing day length through chemical pathways involving melatonin receptors. Some breeds, such as Dorset, are known to be less seasonal with many ewes able to breed and lamb year-round. The Melatonin Receptor 1a () gene was identified as a candidate gene controlling out-of-season lambing. The first studies in the Cornell STAR accelerated lambing flock found that a allele was associated with a shorter time to first lambing and a shorter period between lambings...
May 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28727007/best-management-practices-for-newly-weaned-calves-for-improved-health-and-well-being
#13
B K Wilson, C J Richards, D L Step, C R Krehbiel
Morbidity and mortality in newly weaned calves resulting from bovine respiratory disease (BRD) continue to be the most significant problems facing the beef industry. Morbidity attributed to BRD accounts for approximately 75% of total feedlot morbidity. Several experiments have documented the economic impacts of BRD. Direct costs attributable to BRD include death loss, treatment and labor costs, and prevention costs, while indirect costs associated with BRD include decreased growth performance and feed efficiency, increased days on feed, and decreased carcass merit and market value...
May 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28727006/genetic-analysis-of-semen-production-traits-of-japanese-black-and-holstein-bulls-genome-wide-marker-based-estimation-of-genetic-parameters-and-environmental-effect-trends
#14
Y Atagi, A Onogi, M Kinukawa, A Ogino, K Kurogi, K Uchiyama, T Yasumori, K Adachi, K Togashi, H Iwata
The semen production traits of bulls from 2 major cattle breeds in Japan, Holstein and Japanese Black, were analyzed comprehensively using genome-wide markers. Weaker genetic correlations were observed between the 2 age groups (1 to 3 yr old and 4 to 6 yr old) regarding semen volume and sperm motility compared with those observed for sperm number and motility after freeze-thawing. The preselection of collected semen for freezing had a limited effect. Given the increasing importance of bull proofs at a young age because of genomic selection and the results from preliminary studies, we used a multiple-trait model that included motility after freeze-thawing with records collected at young ages...
May 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28726757/characterization-of-essential-oil-composition-in-different-basil-species-and-pot-cultures-by-a-gc-ms-method
#15
Andrea Muráriková, Anton Ťažký, Jarmila Neugebauerová, Alexandra Planková, Josef Jampílek, Pavel Mučaji, Peter Mikuš
Basil (Ocimum L.) species are used as medicinal plants due to their essential oils exhibiting specific biological activity. The present work demonstrated that both the variety and season/conditions of cultivation had a significant effect on (i) the produced amount (extraction yield), (ii) qualitative, as well as (iii) quantitative profile of basil essential oil. Among studied basil varieties, a new variety, 'Mánes', was characterized for the first time. Based on our quantitative evaluation of GC-MS profiles, the following chemotypes and average concentrations of a main component were detected in the studied basil varieties: 'Ohře', 'Lettuce Leaf', 'Purple Opaal', 'Dark Green' (linalool, 5...
July 20, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28726735/ranging-behaviour-of-commercial-free-range-broiler-chickens-2-individual-variation
#16
Peta S Taylor, Paul H Hemsworth, Peter J Groves, Sabine G Gebhardt-Henrich, Jean-Loup Rault
Little is known about broiler chicken ranging behaviour. Previous studies have monitored ranging behaviour at flock level but whether individual ranging behaviour varies within a flock is unknown. Using Radio Frequency Identification technology, we tracked 1200 individual ROSS 308 broiler chickens across four mixed sex flocks in two seasons on one commercial farm. Ranging behaviour was tracked from first day of range access (21 days of age) until 35 days of age in winter flocks and 44 days of age in summer flocks...
July 20, 2017: Animals: An Open Access Journal From MDPI
https://www.readbyqxmd.com/read/28726734/ranging-behaviour-of-commercial-free-range-broiler-chickens-1-factors-related-to-flock-variability
#17
Peta S Taylor, Paul H Hemsworth, Peter J Groves, Sabine G Gebhardt-Henrich, Jean-Loup Rault
Little is known about the ranging behaviour of chickens. Understanding ranging behaviour is required to improve management and shed and range design to ensure optimal ranging opportunities. Using Radio Frequency Identification technology, we tracked 300 individual broiler chickens in each of four mixed sex ROSS 308 flocks on one commercial farm across two seasons. Ranging behaviour was tracked from the first day of range access (21 days of age) until 35 days of age in winter and 44 days of age in summer. Range use was higher than previously reported from scan sampling studies...
July 20, 2017: Animals: An Open Access Journal From MDPI
https://www.readbyqxmd.com/read/28726711/the-use-of-constructed-wetlands-for-the-treatment-and-reuse-of-urban-wastewater-for-the-irrigation-of-two-warm-season-turfgrass-species-under-mediterranean-climatic-conditions
#18
Mario Licata, Teresa Tuttolomondo, Claudio Leto, Salvatore La Bella, Giuseppe Virga
Constructed wetlands (CWs) represent low-cost technology for the treatment and reuse of wastewater in urban areas. This study aimed to evaluate the pollutant removal efficiency of a CW system and to assess the effects of irrigation using treated urban wastewater on soil and on two warm-season turf species. The research was carried out in Sicily (Italy) on a pilot-scale horizontal subsurface flow system which was fed with treated urban wastewater following secondary treatment from an activated-sludge wastewater treatment plant...
July 2017: Water Science and Technology: a Journal of the International Association on Water Pollution Research
https://www.readbyqxmd.com/read/28726695/a-combined-reed-bed-freezing-bed-technology-for-septage-treatment-and-reuse-in-cold-climate-regions
#19
C Kinsley, K Kennedy, A Crolla
A combined reed bed-freezing bed (RB-FB) technology was effective at treating septage under Canadian climatic conditions over a 5-year period with average loading rates of 82-104 kg TS/m(2)/y. Varying hydraulic and solid loading rates as well as the increasing sludge cake with time had little to no effect on treatment efficiency, with almost complete removal of organic matter, solids, heavy metals and nutrients. Filtrate concentrations varied significantly between the freeze-thaw and growing seasons for many parameters, although the differences were not important from a treatment or reuse perspective with filtrate quality similar to a low to medium strength domestic wastewater...
July 2017: Water Science and Technology: a Journal of the International Association on Water Pollution Research
https://www.readbyqxmd.com/read/28726615/west-nile-virus-outbreak-in-houston-and-harris-county-texas-usa-2014
#20
Diana Martinez, Kristy O Murray, Martin Reyna, Raouf R Arafat, Roberto Gorena, Umair A Shah, Mustapha Debboun
Since 2002, West Nile virus (WNV) has been detected every year in Houston and the surrounding Harris County, Texas. In 2014, the largest WNV outbreak to date occurred, comprising 139 cases and causing 2 deaths. Additionally, 1,286 WNV-positive mosquito pools were confirmed, the most reported in a single mosquito season.
August 2017: Emerging Infectious Diseases
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