A case of facial deformity due to bilateral developmental maxillary cheek teeth displacement in an adult horse     

Robert MP  Gangl MC  Lepage OM 《The Canadian veterinary journal. La revue veterinaire canadienne》2010,51(10):1152-1156

A 7-year-old mare presented with facial deformities associated with oral discomfort and weight loss was found to have bilateral, palatal, developmental displacements of the maxillary 08s, with secondary diastema. Following repulsion of both displaced teeth, the horse regained weight and resumed training. Bony deformities remained visible 9 mo after discharge.  相似文献   

Transcriptional Analysis of Buffalo (Bubalus bubalis) Oocytes During In Vitro Maturation Using Bovine cDNA Microarray     

OM Kandil  N Ghanem  ASS Abdoon  M Hölker  C Phatsara  K Schellander  D Tesfaye 《Reproduction in domestic animals》2010,45(1):63-74

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Effect of different termite feeding groups on P sorption and P availability in African and South American savannas   总被引：1，自引：0，他引：1  

Danilo López-Hernández  Michel Brossard  Jean-Claude Fardeau  Michel Lepage 《Biology and Fertility of Soils》2006,42(3):207-214

Nest structures of six termite species, four with epigeous (above-ground) and two with subterranean nests were analysed to find out how their building and feeding habits could be related to their nests phosphorus status compared with control soils. Termite nest structure was found to affect significantly the P status in savanna soils: mounds of the African Trinervitermes geminatus and the South American Nasutitermes ephratae (both grass-feeders) displayed a greater amount of available P, especially in the inner part of the nest, than the surrounding soil. The abundant quantities of dead grass material stored in the mound can explain the available soil P increase. A similar increase in P availability was also found for the soil-feeder Cubitermes severus. In mounds of Macrotermes bellicosus, on the other hand, there was a drastic increase in P sorption (and a corresponding decrease in available P) compared to adjacent soils, which was attributed to the building strategy of this species. M. bellicosus selected clay from subsoil to build its nest structure. The data obtained for the subterranean species Ancistrotermes cavithorax and Microtermes toumodiensis indicated also that there is an increase in P sorption in mounds when compared with associated topsoils. Consequently, the nest structures of only certain termite species should be considered, and utilised, as a soil amendment in place of fertilisers. This impact on the P cycle in savannas seems to be related to the termite feeding status and to the type of material utilised in nest building. This should be taken into account before using termite nest material in soil fertility status improvement.  相似文献   

Nutrient storage in soils and nests of mound-building <Emphasis Type="Italic">Trinervitermes</Emphasis> termites in Central Burkina Faso: consequences for soil fertility     

Michel Brossard  Danilo López-Hernández  Michel Lepage  Jean-Claude Leprun 《Biology and Fertility of Soils》2007,43(4):437-447

Nest structures of two termite species (Trinervitermes spp.) with epigeal (above-ground) mounds were analyzed to compare their nutrient status with that of adjacent soils. To take into account soil variability, the observations and samplings were made in three toposequences of different and representative West African savanna soils. The data showed the high degree of adaptation of these termite species to a large range of soil types and environments. Mounds of Trinervitermes geminatus and Trinervitermes trinervius, both grass-feeders, contained more clay, organic matter (OM), and exchangeable cations than the surrounding surface layer soil. The storage of OM and exchangeable cations was determined for T. geminatus nests and compared to the surrounding soil. Despite substantial nutrient storage in mounds, its total weight appeared low when compared to the nutrient storage in the surrounding 0–15 cm of soil surface layer. This illustrates how contradictory points of view on the use of termite mounds in agriculture need to be clarified using a classical approach that takes into account data by species; and this also evaluates the contribution of different termite mounds to nutrient fluxes and storage and the exact stocking rate of living mounds.  相似文献   

Plane source injector design for river dispersion studies     

Cynthia Baker Lepage  Deborah J. Mossman  Robert E. Jensen 《Water, air, and soil pollution》1996,86(1-4):187-194

A device that injects a planar, spike input of tracer and accommodates irregular stream cross-sections was designed and field tested. The injector is based on a modular support and electrical system that can easily be modified in the field. The tracer is distributed to the water from self-emptying packets made of latex tubing. These packets resist premature breakage and contribute no litter to the stream. The packets empty after applying a current to the electrical system. Instream assembly of the tracer injector is possible from a boat. A two-dimensional input of tracer significantly shortens the initial mixing period for streams that are wide and deep. During the initial period, the tracer cloud becomes well-mixed vertically and laterally. After the initial period is satisfied, the variance of the tracer cloud grows linearly with time, and longitudinal dispersion can be measured easily. The use of a plane source injector significantly reduces the duration of the initial period.  相似文献   

Open approach to correct traumatic closed tracheal lacerations: A case series     

M. Iglesias-García  O. M. Lepage  L. J. Ezquerra Calvo  J. A. Muñoz Morán 《Equine Veterinary Education》2021,33(9):e317-e320

Reports of tracheal injuries in horses are rare compared with those in small animals and humans. Although uncommon, tracheal injuries can be life threatening if they progress or are not treated. Different treatments have been described depending on the severity of the problem. This report describes the successful surgical treatment of three cases of closed tracheal lacerations through an intraluminal surgical approach.  相似文献   

Abdominal abscess involving a metallic foreign body removed via thoracotomy in a horse     

S. Monteiro  E. Segard  O. M. Lepage 《Equine Veterinary Education》2011,23(6):289-293

Reports of alimentary tract foreign bodies have been rarely reported in the equine literature. This Case Report concerns a mare who presented persistent fever and mild signs of colic. A metallic foreign body was found near to the diaphragm on radiographic and ultrasonographic examinations. A thoracotomy was subsequently performed by means of a 7th rib resection and a diaphragmatic incision made in order to remove the intra‐abdominal abscess containing a metallic foreign body. Peritonitis was the major complication and was managed during hospitalisation by multiple lavage‐drainage procedure of the abdominal cavity. Long‐term outcome (3 years) was good.  相似文献   

Assessment of synovial fluid biomarkers in healthy foals and in foals with tarsocrural osteochondrosis     

de Grauw JC  Donabédian M  van de Lest CH  Perona G  Robert C  Lepage O  Martin-Rosset W  van Weeren PR 《Veterinary journal (London, England : 1997)》2011,(3):390-395

Although alterations in biomarkers of cartilage turnover in synovial fluid (SF) have been demonstrated in horses with osteochondrosis (OC), there have been few investigations of such alterations in animals <1 year old. In this study tarsocrural SF samples from foals aged 18, 22 and 52 weeks of age were assessed for: (1) ‘turnover’ biomarkers of type II collagen (CPII and C2C) and proteoglycan (CS846 and glycosaminoglycans [GAG]); (2) matrix metalloproteinase (MMP) activity; (3) insulin-like growth factor (IGF)-1; (4) transforming growth factor (TGF)-β1; (5) prostaglandin (PG) E₂; and (6) leukotriene B₄.Using a linear mixed model, the concentration of biomarkers was compared between animals that developed or did not develop radiographic evidence of OC at 24 or 48 weeks of age. The CPII:C2C ratio tended to be higher in OC-affected joints compared to controls at all ages, and this difference was statistically significant at 22 weeks of age. The concentrations of CS846 and IGF-1, and the CS846:GAG ratio were reduced in OC-affected joints relative to controls at 18 weeks of age only. At 52 weeks of age, the PGE₂ concentration was lower in joints with OC. Overall, there appears to be a consistent anabolic shift in type II collagen turnover in juvenile joints affected by OC. Aberrant proteoglycan turnover is not a hallmark of the late repair of this lesion but reduced concentrations of IGF-1 in SF may be associated with early-stage lesions.  相似文献   

Histological and biomechanical effects of palatal sclerotherapy in the horse using sodium tetradecyl sulfate     

Juan A. Muñoz  Marcel Marcoux  Valérie Picandet  Christine L. Theoret  Marie-France Perron  Olivier M. Lepage 《Veterinary journal (London, England : 1997)》2010,183(3):316-321

Palatal sclerotherapy using sodium tetradecyl sulfate has been suggested as a treatment for dorsal displacement of the soft palate in young Standardbred horses. The present study evaluated histological and biomechanical changes in the equine soft palate following trans-endoscopic treatment with a low dose of this compound. Two horses were euthanased and examined at 2 weeks and at 1, 2, 4 and 6 months post-sclerotherapy, while two further horses served as untreated controls. The technique was easily performed in all cases without major complications. On histological examination there was no evidence of palatal necrosis, inflammation or fibrosis in any of the treated or control animals. There was no variation in the density of palatal connective tissue between individuals, and on biomechanical assessment no significant difference in the stiffness of the palatal tissue was found between treated and control horses at any time. The lower dose of sodium tetradecyl sulfate used in this study relative to previous reports, might explain the absence of tissue alterations. This method of sclerotherapy did not alter the morphology or biomechanical properties of normal equine soft palates.  相似文献   

Trans‐Arterial Coil Embolization of the Internal Carotid Artery in Standing Horses     

Kossay Benredouane DMV  MSc  Olivier Lepage DMV  PhD  Diplomate ECVS 《Veterinary surgery : VS》2012,41(3):404-409

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