Lung lobe torsion in 15 dogs: Peripheral band sign on ultrasound     

Audrey Belmudes  Guillaume Gory  Eddy Cauvin  Anaïs Combes  Hlne Gallois‐Bride  Laurent Couturier  Delphine N. Rault 《Veterinary radiology & ultrasound》2021,62(1):116-125

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Computed tomographic features of gastric and esophageal content in dogs undergoing CT myelography and factors influencing the presence of esophageal fluid     

Caroline Benzimra  Ilaria Cerasoli  Delphine Rault  Karine Chalvet-Monfray  Eddy Cauvin  Laurent Couturier  Laure Gatel 《Journal of veterinary science (Suw?n-si, Korea)》2020,21(6)

BackgroundGastroesophageal reflux (GER) has been reported to be a common finding in dogs under general anesthesia.ObjectivesThe aim of this retrospective study was to assess the esophageal and gastric contents in a population of dogs undergoing computed tomographic myelography (myelo-CT) examination and to evaluate the factors influencing the presence of esophageal fluid (gastric content, duration of anesthesia, body position, and intrinsic factors).MethodsEsophageal and gastric contents of 83 non-brachycephalic dogs were retrospectively assessed based on plain and myelo-CT scans. Age, weight, breed, sex, and the time between the 2 computed tomography [CT] scans were included.ResultsEsophageal fluid was present in 19% (16/83) of the animals, and 14% (12/83) and 46% (37/83), respectively, had fluid or food material in their stomachs. The frequency of observing esophageal fluid on myelo-CT scans was significantly increased compared with plain CT scans (p = 0.006). The presence of gastric fluid was significantly associated with an increased frequency of observing esophageal fluid compared to other gastric contents (p = 0.049; odds ratio, 3.1). The presence of esophageal fluid was not correlated with alimentary gastric contents (p = 0.17). Increased body weight and duration of anesthesia were significantly associated with an increased frequency of observing esophageal fluid (p = 0.022, p = 0.021).ConclusionsUnlike alimentary gastric contents, fluid gastric contents were correlated with the presence of esophageal fluid upon myelo-CT. The observation of fluid in the esophagus may be consistent with GER. This study provides data additional to pH monitoring studies of GER and may support previous studies recommending shorter pre-anesthetic fasting periods in dogs.  相似文献   

Use of ovotransferrin as an antimicrobial in turkeys naturally infected with Chlamydia psittaci, avian metapneumovirus and Ornithobacterium rhinotracheale     

Van Droogenbroeck C  Dossche L  Wauman T  Van Lent S  Phan TT  Beeckman DS  Vanrompay D 《Veterinary microbiology》2011,153(3-4):257-263

Respiratory pathogens are difficult to control in large-scale turkey production. This report describes a clinical trial of antimicrobial ovoTF aerosol on a large Belgian turkey farm. ovoTF was administered to reduce Chlamydia psittaci (C. psittaci) infections and to study the impact of this action on the occurrence of Ornithobacterium rhinotracheale (O. rhinotracheale) and avian metapneumovirus (aMPV) infections. Two subsequent broods were included; (i) a control brood receiving no ovoTF and (ii) an ovoTF brood receiving ovoTF aerosol (5mg/animal) at the age of 2 weeks, continuing daily for 12 days. Twenty-four one-day-old toms of the control and ovoTF brood were tagged and monitored for 15 weeks. The control brood experienced two periods of respiratory disease, the first (2-3 weeks of age) due to C. psittaci and the second (8-17 weeks of age) in the presence of C. psittaci, O. rhinotracheale and maybe aMPV. Extensive antibiotic treatment was needed in 2, 8 and 9 week-old toms. In the ovoTF brood, toms stayed healthy until the age of 9 weeks, whereafter respiratory disease occurred in the presence of C. psittaci, O rhinotracheale and aMPV. OvoTF administration: (i) reduced the amount of C. psittaci in the air as demonstrated by bioaerosol monitoring, (ii) prevented respiratory disease during the first half of the brood period, (iii) was associated with 46% reduction of mortality, and (iv) reduced the antibiotic cost. Our results justify additional clinical trials to explore the use of this innovative antimicrobial strategy for poultry.  相似文献   

Family Variation in the Morphology and Physiology of White Spruce (Picea glauca) Seedlings in Response to Elevated CO2 and Temperature     

Sylvie Carles  Delphine Boyer Groulx  Mohammed S. Lamhamedi  André Rainville  Jean Beaulieu  Pierre Bernier 《Journal of Sustainable Forestry》2013,32(3):169-198

Tree improvement programs aim to develop families that are well-adapted to future growing conditions. To gain insight into the stability of the family genetic response to climate change, white spruce (Picea glauca) seedlings from 60 full-sib families were subjected to a combination of two temperature regimes and two levels of CO₂ over two growing seasons. There was positive effect of warmer temperatures and higher CO₂ on some growth variables but no significant family × treatment interactions. Instantaneous water use efficiency was the only physiological trait that was affected positively by the CO₂ treatment, showing a 51% increase that was consistent across families.  相似文献   

A cost-effectiveness study of the community-based intervention '10 000 Steps Ghent'     

De Smedt D  De Cocker K  Annemans L  De Bourdeaudhuij I  Cardon G 《Public health nutrition》2012,15(3):442-451

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Process,structure and texture of extruded whole wheat     

Frédéric Robin  Cédric Dubois  Nicolas Pineau  Emilie Labat  Christine Théoduloz  Delphine Curti 《Journal of Cereal Science》2012

Whole wheat is well known by consumers as a health-providing ingredient. Nevertheless, in extruded products it leads to textures that are less favorable to consumer preference compared to its refined flour. An understanding of the effect of extrusion on whole wheat properties is therefore necessary to improve its texture. Whole wheat flour was extruded under varying conditions of water content (18 or 22%), screw speed (400 or 800 rpm) and barrel temperature (140 or 180 °C) and its physicochemical properties were measured. Changing the extrusion conditions significantly modified the volumetric expansion index (between 9.1 and 20.6) and longitudinal expansion (between 0.93 and 2.98) of the samples. Interestingly, changing the extrusion conditions did not significantly modify the sectional expansion. Increasing barrel temperature, water content or screw speed decreased the shear viscosity of the melt. This can be explained by plasticizing effects and modification of starch properties. The change in shear viscosity at the die can mostly explain the effect of process conditions on volumetric expansion of the extruded whole wheat. The stress at rupture of the extruded samples was varied between 0.49 and 1.86 MPa depending on process conditions. It was the lowest at high water content and low screw speed.  相似文献   

Oral administration of sucrose solutions and measurement of serum sucrose concentrations to evaluate gastric permeability in adult bottlenose dolphins (Tursiops truncatus)     

Buddington KK  Holmes WE  Clemons-Chevis CL  Solangi MA  Vanderpool D  Buddington RK 《American journal of veterinary research》2006,67(6):931-935

OBJECTIVE: To measure concentrations of sucrose in the serum of captive dolphins after oral administration of a sucrose solution and determine the suitability of this method for use as a test to detect gastric ulcers. ANIMALS: 8 adult captive bottlenose dolphins (Tursiops truncatus). PROCEDURES: Blood samples were collected from the ventral fluke vein of dolphins before and 45 minutes after oral administration of 500 mL of solution containing 25 or 50 g of sucrose; oral administration was achieved by use of gastric intubation. Serum was separated, diluted in a solution of 90% acetonitrile-to 10% water that contained 10 ng of an internal standard (trichlormethiazide)/microL, mixed, and centrifuged. Supernatant was analyzed by use of liquid chromatography-mass spectrometry-mass spectrometry (LC-MS-MS). RESULTS: Serum sucrose concentrations of dolphins were at or less than the limits of detection before oral administration. Values after administration of sucrose solution varied among dolphins and were higher and more variable after administration of 50 g, compared with concentrations after administration of 25 g. CONCLUSIONS AND CLINICAL RELEVANCE: Serum sucrose concentrations in samples collected during routine health evaluations of captive dolphins can be reliably measured by use of LC-MS-MS. Correlating serum sucrose concentrations with endoscopic observations of the gastric mucosa of dolphins will validate this approach for use in screening for the prevalence and severity of gastric ulcers and determining the efficacy of treatment regimens.  相似文献   

Growth strain assessment at the periphery of small-diameter trees using the two-grooves method: influence of operating parameters estimated by numerical simulations   总被引：1，自引：0，他引：1  

Delphine Jullien  Joseph Gril 《Wood Science and Technology》2008,42(7):551-565

The two-grooves method used for estimating the surface locked-in strains on standing stems was studied using a finite-element model simulating the gauge measurement resulting from the groove cutting, having in mind the particular of small diameter trees. The assumed growth stress distribution was described by simple polynomial expressions of the relative radius with the possible existence of a tension wood sector characterized by higher residual stresses in the longitudinal direction. The end effect of the crosscutting vanished for a height/diameter ratio higher than 3 and the simulated gauge measurement reasonably approached the local growth strain average. For very small trees with a diameter of about 2 cm, the distance between gauge end and groove should not exceed 3 mm, a value of up to 5 mm is allowed in case of larger stems, 5–20 cm. For any combination of stem diameter, gauge length, groove distance and depth, and assumptions on the internal stress distributions, the underestimation of the surface growth strain by the gauge can be evaluated using the developed numerical tool.  相似文献   

Characterization of drought stress environments for upland rice and maize in central Brazil     

Alexandre Bryan Heinemann  Michael Dingkuhn  Delphine Luquet  Jean Claude Combres  Scott Chapman 《Euphytica》2008,162(3):395-410

Drought stresses arise when the combination of rainfall and soil water supply are insufficient to meet the transpiration needs of the crop. In the Cerrado region of Goiás state, Brazil, summer rainfall is typically greater than 1000 mm. However, drought stress can occur during rain-free periods of only 1–3 weeks, since roots are frequently restricted to shallow depths due to Al-induced acidity in deeper soil layers. If these droughts are frequent, then plant breeding programs need to consider how to develop suitable germplasm for the target population of environments (TPE). A crop simulation model was used to determine patterns of drought stress for 12 locations and >30 environments (6 years × 5–6 planting dates) for short and medium duration rice crops (planted in early summer), and for maize grown either as a 1st or 2nd crop in the summer cycle. Regression analysis of the simulations confirmed the greater yield impact in both crops of drought stress (quantified as the ratio of water-limited to potential transpiration) when it occurred around the time of flowering and early grain-filling. For rice, mild mid-season droughts occurred 40–60% of the time in virgin (0.4 m deep for rice or 0.5 m for maize) soils and improved (0.8 m for rice or 1.0 m for maize) soils, with a yield reduction of <30%. More severe reproductive and grain-filling stress (yield reductions of 50% for rice to 90% for maize) occurred less frequently in rice (<30% of time) and 1st maize crop (< 10% of time). The 2nd maize crop experienced the greatest proportion (75–90%) of drought stresses that reduced yield to <50% of potential, with most of these occasions associated with later planting. The rice breeding station (CNPAF) experiences the same pattern of different drought types as for the TPE, and is largely suitable for early-stage selection of adapted germplasm based on yield potential. However, selection for virgin soil types could be augmented by evaluation on some less-improved soils in the slightly drier parts of the TPE region. Similarly, the drought patterns at the maize research station (CNPMS) and the other maize screening locations are better suited to selection of lines for the improved soil types. Development of lines for the 2nd crop and on more virgin (acidic) soils would require more targeted selection at late planting dates in drier sites.  相似文献   

Detection of IgE‐reactive proteins in hydrolysed dog foods          下载免费PDF全文

Olivier Roitel  Lionel Bonnard  Alexandre Stella  Odile Schiltz  Delphine Maurice  Gaël Douchin  Sandrine Jacquenet  Claude Favrot  Bernard E. Bihain  Nicolas Couturier 《Veterinary dermatology》2017,28(6):589-e143

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