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https://www.readbyqxmd.com/read/29053843/effects-of-season-and-distance-during-transport-on-broiler-chicken-meat
#1
V M Dos Santos, B S L Dallago, A M C Racanicci, Â P Santana, F E M Bernal
This research aims to evaluate the microclimate of commercial loads of broiler chickens at different distances in the summer (rainy) and winter (dry) seasons and their effects on meat quality. Twelve broiler loads were monitored with a total of 24 crates per load. Data loggers were used to record temperature and relative humidity. The experiment followed a completely randomized design with 48 treatments in a factorial scheme (2 seasons: rainy and dry) x 2 (distances: short and long) x 12 (positions), with 3 replicates per experimental group...
October 10, 2017: Poultry Science
https://www.readbyqxmd.com/read/29046427/different-contributions-of-primary-motor-cortex-reticular-formation-and-spinal-cord-to-fractionated-muscle-activation
#2
Boubker Zaaimi, Lauren R Dean, Stuart N Baker
Coordinated movement requires patterned activation of muscles. In this study we examined differences in selective activation of primate upper limb muscles by cortical and sub-cortical regions. Five macaque monkeys were trained to perform a reach and grasp task, and electromyogram (EMG) was recorded from 10-24 muscles while weak single-pulse stimuli were delivered through microelectrodes inserted in the motor cortex (M1), reticular formation (RF) or cervical spinal cord (SC). Stimulus intensity was adjusted to a level just above threshold...
October 18, 2017: Journal of Neurophysiology
https://www.readbyqxmd.com/read/29046419/high-diving-metabolic-rate-indicated-by-high-speed-transit-to-depth-in-negatively-buoyant-long-finned-pilot-whales
#3
Kagari Aoki, Katsufumi Sato, Saana Isojunno, Tomoko Narazaki, Patrick J O Miller
To maximize foraging duration at depth, diving mammals are expected to use the lowest cost optimal speed during descent and ascent transit and to minimize the cost of transport by achieving neutral buoyancy. Here, we outfitted 18 deep-diving long-finned pilot whales with multi-sensor data loggers and found indications that their diving strategy is associated with higher costs than those of other deep-diving toothed whales. Theoretical models predict that optimal speed is proportional to (basal metabolic rate/drag)(1/3) and therefore to body mass(0...
October 15, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/29045417/effects-of-food-store-quality-on-hibernation-performance-in-common-hamsters
#4
Carina Siutz, Matthias Nemeth, Karl-Heinz Wagner, Ruth Quint, Thomas Ruf, Eva Millesi
Hibernating animals can adjust torpor expression according to available energy reserves. Besides the quantity, the quality of energy reserves could play an important role for overwintering strategies. Common hamsters are food-storing hibernators and show high individual variation in hibernation performance, which might be related to the quality of food hoards in the hibernacula. In this study, we tested the effects of food stores high in fat content, particularly polyunsaturated fatty acids (PUFAs), on hibernation patterns under laboratory conditions...
2017: PloS One
https://www.readbyqxmd.com/read/29044128/effects-of-vessel-traffic-and-underwater-noise-on-the-movement-behaviour-and-vocalisations-of-bottlenose-dolphins-in-an-urbanised-estuary
#5
Sarah A Marley, Chandra P Salgado Kent, Christine Erbe, Iain M Parnum
The potential disturbance of dolphins from tourism boats has been widely discussed in the literature, in terms of both physical vessel presence and associated underwater noise. However, less attention has been paid to the potential impact of non-tourism vessels, despite these being much more widespread and occurring in greater numbers throughout coastal dolphin habitats. The Indo-Pacific bottlenose dolphin (T. aduncus) community using the Fremantle Inner Harbour, Western Australia, is exposed to high levels of vessel traffic...
October 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29043042/feedr-and-animalnexus-ca-a-paired-r-package-and-user-friendly-web-application-for-transforming-and-visualizing-animal-movement-data-from-static-stations
#6
Stefanie E LaZerte, Matthew W Reudink, Ken A Otter, Jackson Kusack, Jacob M Bailey, Austin Woolverton, Mark Paetkau, Adriaan de Jong, David J Hill
Radio frequency identification (RFID) provides a simple and inexpensive approach for examining the movements of tagged animals, which can provide information on species behavior and ecology, such as habitat/resource use and social interactions. In addition, tracking animal movements is appealing to naturalists, citizen scientists, and the general public and thus represents a tool for public engagement in science and science education. Although a useful tool, the large amount of data collected using RFID may quickly become overwhelming...
October 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/29037369/ambient-temperature-and-humidity-modulate-the-behavioural-thermoregulation-of-a-small-arboreal-mammal-callicebus-bernhardi
#7
Karine G D Lopes, Júlio César Bicca-Marques
Maintaining a constant body temperature is critical to the proper functioning of metabolic reactions. Behavioural thermoregulation strategies may minimize the cost of energetic balance when an animal is outside its thermoneutral zone. We investigated whether ambient temperature and relative air humidity influence the use of behavioural strategies by a group of Prince Bernhard's titi monkeys (Callicebus bernhardi) living in a forest fragment. We monitored a social group composed of four individuals (an adult couple and two juveniles) for 1010h from March to September 2015...
October 2017: Journal of Thermal Biology
https://www.readbyqxmd.com/read/28990466/task-dependent-cold-stress-during-expeditions-in-antarctic-environments
#8
Drew M Morris, June J Pilcher, Robert B Powell
This study seeks to understand the degree of body cooling, cold perception and physical discomfort during Antarctic tour excursions. Eight experienced expedition leaders across three Antarctic cruise voyages were monitored during occupational tasks: kayaking, snorkelling and zodiac outings. Subjective cold perception and discomfort were recorded using a thermal comfort assessment and skin temperature was recorded using a portable data logger. Indoor cabin temperature and outdoor temperature with wind velocity were used as measures of environmental stress...
2017: International Journal of Circumpolar Health
https://www.readbyqxmd.com/read/28960597/ideal-cricoid-pressure-is-biomechanically-impossible-during-laryngoscopy
#9
Christopher E Trethewy, Steven R Doherty, Julie M Burrows, Don Clausen
STUDY OBJECTIVE: A prospective, randomised controlled trial of Rapid Sequence Intubation (RSI) with Cricoid Pressure (CP) within the Emergency Department (ED). The primary aim of the study was to examine the link between ideal CP and the incidence of aspiration. METHOD: Patients >18 years of age undergoing RSI in the ED of two hospitals in New South Wales, Australia, were randomly assigned to receive Measured CP using weighing scales to target the ideal CP range (3...
September 28, 2017: Academic Emergency Medicine: Official Journal of the Society for Academic Emergency Medicine
https://www.readbyqxmd.com/read/28951031/temperature-rise-on-the-plugger-surface-of-2%C3%A2-commercially-available-gutta-percha-heating-devices
#10
Fotis Dimopoulos, Konstantinos Dervenis, Christos Gogos, Theodoros Lambrianidis
INTRODUCTION: The objective of this study was to examine the temperature rise on the plugger surface of 2 commercially available gutta-percha heating devices: the System B (Kerr Dental, Amersfoort, The Netherlands) and the System B Cordless Pack Unit (Kerr Dental). METHODS: Temperature changes were recorded by a Thermocouple Data Logger device (Pico Technology Ltd, St Neots, UK) and 2 thermocouples: the first to record the temperature on the plugger surface in an isolated polytetrafluoroethylene system and the second to record the base temperature of the environment...
September 23, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28888038/influence-of-littoral-periphyton-on-whole-lake-metabolism-relates-to-littoral-vegetation-in-humic-lakes
#11
Jussi Vesterinen, Shawn P Devlin, Jari Syväranta, Roger I Jones
The role of littoral habitats in lake metabolism has been underrated, especially in humic lakes, based on an assumption of low benthic primary production (PP) due to low light penetration into water. This assumption has been challenged by recent recognition of littoral epiphyton dominance of whole-lake PP in a small highly humic lake and of epiphyton as an important basal food source for humic lake biota. However, as these studies have mostly concerned single lakes, there is a need to test their wider generality...
September 9, 2017: Ecology
https://www.readbyqxmd.com/read/28887270/temporal-trends-between-2010-and-2015-in-intensity-of-care-at-end-of-life-for-patients-with-chronic-illness-influence-of-age-under-versus-over-65-years
#12
Seelwan Sathitratanacheewin, Ruth A Engelberg, Lois Downey, Robert Y Lee, James A Fausto, Helene Starks, Ben Dunlap, James Sibley, William Lober, Elizabeth T Loggers, Nita Khandelwal, J Randall Curtis
CONTEXT: Recent analyses of Medicare data show decreases over time in intensity of end-of-life care. Few studies exist regarding trends in intensity of end-of-life care for those under 65. OBJECTIVES: To examine recent temporal trends in place of death, and both hospital and ICU utilization, for age-stratified decedents with chronic, life-limiting diagnoses (<65 versus ≥65 years) who received care in a large healthcare system. METHODS: Retrospective cohort using death certificates and electronic health records for 22,068 patients with chronic illnesses who died between 2010 and 2015...
September 5, 2017: Journal of Pain and Symptom Management
https://www.readbyqxmd.com/read/28854247/living-on-the-edge-daily-seasonal-and-annual-body-temperature-patterns-of-arabian-oryx-in-saudi-arabia
#13
S Streicher, H Lutermann, N C Bennett, M F Bertelsen, O B Mohammed, P R Manger, M Scantlebury, K Ismael, A N Alagaili
Heterothermy, the ability to allow body temperature (Tb) to fluctuate, has been proposed as an adaptive mechanism that enables large ungulates to cope with the high environmental temperatures and lack of free water experienced in arid environments. By storing heat during the daytime and dissipating it during the night, arid-adapted ungulates may reduce evaporative water loss and conserve water. Adaptive heterothermy in large ungulates should be particularly pronounced in hot environments with severely limited access to free water...
2017: PloS One
https://www.readbyqxmd.com/read/28852958/clinical-benefit-of-antiangiogenic-therapy-in-advanced-and-metastatic-chondrosarcoma
#14
Robin L Jones, Daniela Katz, Elizabeth T Loggers, Darin Davidson, Eve T Rodler, Seth M Pollack
Chondrosarcoma is the most common bone sarcoma in adults. Conventional chondrosarcoma, the commonest histological subtype, is largely resistant to anthracycline-based chemotherapy. There have been anecdotal reports of durable clinical benefit with antiangiogenic agents in this disease. A retrospective search of patients treated at three sarcoma referral centers was performed to identify patients with advanced chondrosarcoma treated with antiangiogenic agents. The aim of this study was to evaluate the efficacy and safety of antiangiogenic agents in advanced chondrosarcoma...
August 29, 2017: Medical Oncology
https://www.readbyqxmd.com/read/28846487/development-of-an-intelligent-spacer-data-logger-system
#15
Chris O'Callaghan, Nicholas J Smith, Peter W Barry, John Denyer
BACKGROUND: Although delivery of drugs from pressurized metered dose inhalers (pMDIs) via spacer devices is widespread it cannot be assumed that patients take their medication as prescribed or use their spacer appropriately. We developed a Spacer Data Logger device to record patient adherence and whether patients had shaken the pMDI, actuated it soon after shaking, and inhaled a sufficient volume from it. METHODS: We report an assessment of the Spacer Data Logger to measure and record that the pMDI was adequately shaken, the time to actuation, and the volume "inhaled" from the spacer up to 26 seconds after actuation...
August 28, 2017: Journal of Aerosol Medicine and Pulmonary Drug Delivery
https://www.readbyqxmd.com/read/28836844/behavioral-and-physiologic-changes-in-holstein-steers-experimentally-infected-with-mannheimia-haemolytica
#16
Nicole L Eberhart, Jennifer M Storer, Marc Caldwell, Arnold M Saxton, Peter D Krawczel
OBJECTIVE To evaluate changes in behavior and surfactant protein (SP) A and D concentrations in serum and bronchoalveolar lavage fluid (BALF) samples of calves experimentally infected with Mannheimia haemolytica. ANIMALS Twelve 4- to 5-month-old Holstein steers. PROCEDURES Calves were divided into 2 treatment groups and instrumented with a data logger to collect behavioral data. After 10 days of acclimation, calves were experimentally inoculated with 3 × 10(9) CFUs to 5 × 10(9) CFUs of M haemolytica suspended in approximately 5 mL of PBS solution (infected calves; n = 6) or 5 mL of PBS solution without M haemolytica (control calves; 6) through a catheter into the right accessory lung lobe...
September 2017: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/28832641/departure-time-influences-foraging-associations-in-little-penguins
#17
Grace J Sutton, Andrew J Hoskins, Maud Berlincourt, John P Y Arnould
Recent studies have documented that little penguins (Eudyptula minor) associate at sea, displaying synchronised diving behaviour throughout a foraging trip. However, previous observations were limited to a single foraging trip where only a small number of individuals were simultaneously tracked. Consequently, it is not known whether coordinated behaviour is consistent over time, or what factors influence it. In the present study, breeding adults were concurrently instrumented with GPS and dive behaviour data loggers for at least 2 consecutive foraging trips during guard and post-guard stage at two breeding colonies (London Bridge and Gabo Island, south-eastern Australia) of contrasting population size (approximately 100 and 30,000-40,000, respectively)...
2017: PloS One
https://www.readbyqxmd.com/read/28831557/modeling-shade-tree-use-by-beef-cattle-as-a-function-of-black-globe-temperature-and-time-of-day
#18
Amanda M Foust, William L Headlee
Increasing temperatures associated with global climate change threaten to disrupt agricultural systems such as beef production, yet relatively little is known about the use of natural tree shade to mitigate the negative effects of heat stress on beef cattle. In this study, we evaluated how temperature and time of day influenced the utilization of tree shade in relation to coloration, orientation, and behavior of beef cattle in a pasture system. Temperatures in shade and direct sunlight were measured using black globe temperature (BGT) data loggers...
August 22, 2017: International Journal of Biometeorology
https://www.readbyqxmd.com/read/28793901/mobility-assessment-of-a-rural-population-in-the-netherlands-using-gps-measurements
#19
Gijs Klous, Lidwien A M Smit, Floor Borlée, Roel A Coutinho, Mirjam E E Kretzschmar, Dick J J Heederik, Anke Huss
BACKGROUND: The home address is a common spatial proxy for exposure assessment in epidemiological studies but mobility may introduce exposure misclassification. Mobility can be assessed using self-reports or objectively measured using GPS logging but self-reports may not assess the same information as measured mobility. We aimed to assess mobility patterns of a rural population in the Netherlands using GPS measurements and self-reports and to compare GPS measured to self-reported data, and to evaluate correlates of differences in mobility patterns...
August 9, 2017: International Journal of Health Geographics
https://www.readbyqxmd.com/read/28790930/it-takes-time-to-be-cool-on-the-relationship-between-hyperthermia-and-body-cooling-in-a-migrating-seaduck
#20
Magella Guillemette, Elias T Polymeropoulos, Steven J Portugal, David Pelletier
The large amount of energy expended during flapping flight is associated with heat generated through the increased work of the flight muscles. This increased muscle work rate can manifest itself in core body temperature (Tb) increase of 1-2°C in birds during flight. Therefore, episodic body cooling may be mandatory in migratory birds. To elucidate the thermoregulatory strategy of a short-distance migrant, common eiders (Somateria mollissima), we implanted data loggers in the body cavity of wild birds for 1 year, and report information on Tb during their entire migration for 19 individuals...
2017: Frontiers in Physiology
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