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Julien Morthomas, Claudio Fusco, Zengqiang Zhai, Olivier Lame, Michel Perez
The ability of a simple coarse-grained finite-extensible nonlinear elastic (FENE) Lennard-Jones (LJ) polymer model to be crystallized is investigated by molecular dynamics simulations. The optimal FENE Lennard-Jones parameter combinations (ratio between FENE and LJ equilibrium distances) and the optimal lattice parameters are calculated for five different perfect crystallite structures: simple tetragonal, body-centered tetragonal, body-centered orthorhombic, hexagonal primitive, and hexagonal close packed. It was found that the most energetically favorable structure is the body-centered orthorhombic...
November 2017: Physical Review. E
Mebrahtu Tedla, Mebrahtu Gebreselassie
OBJECTIVE: This study was performed with the objective of identifying the proportion of emerging and endemic livestock diseases using cross sectional survey. RESULT: A total of 285 clinically diseased animals were presented to a veterinary clinic and diagnosed tentatively based on history, clinical sign, and simple laboratory diagnostics and from the study, actinomycosis (15.83%), mastitis (15%), tick infestation (10%), respiratory diseases (9.16%) and gastro intestinal parasitism (9...
January 15, 2018: BMC Research Notes
S Y Broeckx, J H Spaas, K Chiers, L Duchateau, L Van Hecke, L Van Brantegem, M Dumoulin, A M Martens, F Pille
The safety of the intra-articular use of mesenchymal stem cells (MSCs) is scarcely reported. Therefore, the goal of this study was to investigate the safety of a single intra-articular injection with allogeneic chondrogenic induced MSCs combined with equine plasma (=the investigational product: IVP) compared to a saline (0.9% NaCl) placebo control (=control product: CP). Sixteen healthy experimental horses were randomly assigned to receive a single intra-articular injection with either the IVP (n=8) or the CP (n=8) in the left metacarpophalangeal joint...
December 27, 2017: Research in Veterinary Science
Alexandre Fournet, Jean-François Boursier, Solène Corbeau, Adeline Decambron, Véronique Viateau, Pascal Fayolle, Anne-Sophie Bedu, Dimitri Leperlier, Mathieu Manassero
OBJECTIVES:  This article aimed to describe olecranon fracture in dogs and cats and their stabilization with tension band wiring or plate osteosynthesis, and to evaluate complications associated with each technique. METHODS:  Medical records of cats and dogs that had been surgically treated for olecranon fractures with either tension band wiring or plate osteosynthesis were retrospectively reviewed. The surgical technique, complications and long-term outcomes were assessed...
January 2018: Veterinary and Comparative Orthopaedics and Traumatology: V.C.O.T
Jamie Barwick, David Lamb, Robin Dobos, Derek Schneider, Mitchell Welch, Mark Trotter
Lameness is a clinical symptom associated with a number of sheep diseases around the world, having adverse effects on weight gain, fertility, and lamb birth weight, and increasing the risk of secondary diseases. Current methods to identify lame animals rely on labour intensive visual inspection. The aim of this current study was to determine the ability of a collar, leg, and ear attached tri-axial accelerometer to discriminate between sound and lame gait movement in sheep. Data were separated into 10 s mutually exclusive behaviour epochs and subjected to Quadratic Discriminant Analysis (QDA)...
January 11, 2018: Animals: An Open Access Journal From MDPI
Lionel Sebbag, Patricia A Pesavento, Sebastian E Carrasco, Christopher M Reilly, David J Maggs
Case summary: A 14-year-old female spayed Abyssinian cat, which about 1 year previously underwent thoracic limb amputation, radiotherapy and chemotherapy for an incompletely excised vaccine-related fibrosarcoma, was presented for evaluation of corneal opacity in the left eye (OS). The ocular surface of both eyes (OU) had a lackluster appearance and there was a stromal corneal ulcer OS. Results of corneal aesthesiometry, Schirmer tear test-1 (STT-1) and tear film breakup time revealed corneal hypoesthesia, and quantitative and qualitative tear film deficiency OU...
January 2018: JFMS Open Reports
Carolina Munoz, Angus Campbell, Stuart Barber, Paul Hemsworth, Rebecca Doyle
This study examined variation in the welfare of extensively managed ewes and potential welfare risks. A total of 100 Merino ewes (aged 2-4 years) were individually identified and examined at three key stages: pregnancy, lactation and weaning. Eight animal-based welfare measures were used to assess welfare: flight distance, body condition score (BCS), fleece condition, skin lesions, tail length, dag score, lameness and mastitis. Data were analysed by ANOVA and McNemar's statistics. Overall, the average BCS of the group was in agreement with industry recommendations...
January 8, 2018: Animals: An Open Access Journal From MDPI
Francisco Cialdine Frota Carneiro Júnior, Eduardo Nazareno Dos Anjos Carrijo, Samuel Tomaz Araújo, Luis Carlos Uta Nakano, Jorge Eduardo de Amorim, Daniel Guimarães Cacione
BACKGROUND Popliteal artery entrapment syndrome (PAES) results from an anomalous relationship between the popliteal artery and the myofascial structures of the popliteal fossa. The most common presenting symptoms include intermittent pain in the feet and calves on exercise, resulting in lameness. PAES can lead to popliteal artery thrombosis, stenosis, distal arterial thromboembolism, or arterial aneurysm. The treatment of PAES includes surgical exploration with fasciotomy, myotomy, or sectioning of fibrous band formation, to release the popliteal artery...
January 9, 2018: American Journal of Case Reports
Moran Tal, Jacqueline M Parr, Shawn MacKenzie, Adronie Verbrugghe
A 6-month-old intact female giant schnauzer dog fed a nutritionally unbalanced homemade diet was evaluated because of a 1-month history of lameness and difficulty walking. Abnormalities identified on ancillary tests, in conjunction with the dog's clinical improvement following diet change, suggested a diagnosis of vitamin D deficiency and nutritional secondary hyperparathyroidism. This report underlines the importance of appropriate feeding management, especially during the vulnerable growth phase.
January 2018: Canadian Veterinary Journal. la Revue Vétérinaire Canadienne
Pavel Slunsky, Lesley Halter, Svenja Florczak, Alexander Haake, Leo Brunnberg, Kerstin Müller
A 1-yr-old female Congo African grey parrot ( Psittacus erithacus erithacus) was admitted with a lameness of the right pelvic limb. On the radiographs a closed, caudolaterally displaced, comminuted, diaphyseal fracture of the femur was diagnosed. Surgery under general anesthesia was performed in order to repair the fracture with a paracortical-clamp-cerclage technique. This straightforward and effective technique has been developed as a low-cost treatment for simple and comminuted diaphyseal fractures in dogs and cats...
December 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
Lana Krol, Vanessa Fravel, Diana G Procter, Kathleen M Colegrove
A 21-yr-old intact male walrus ( Odobendus rosmarus divergens) presented with acute onset of shifting lameness, initially associated with breeding behaviors. Further clinical signs manifested, including muscle tremors, anorexia, hematuria, and coughing. Diagnostics were limited, as the animal would not offer behaviors for voluntary sample collection. Signs were addressed with anti-inflammatories, anticonvulsants, and antibiotics. The walrus developed cluster seizures and ultimately, respiratory and cardiac arrest...
December 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
Carolina Munoz, Angus Campbell, Paul Hemsworth, Rebecca Doyle
The reliability and feasibility of 10 animal-based measures of ewe welfare were examined for use in extensive sheep production systems. Measures were: Body condition score (BCS), rumen fill, fleece cleanliness, fleece condition, skin lesions, tail length, dag score, foot-wall integrity, hoof overgrowth and lameness, and all were examined on 100 Merino ewes (aged 2-4 years) during mid-pregnancy, mid-lactation and weaning by a pool of nine trained observers. The measures of BCS, fleece condition, skin lesions, tail length, dag score and lameness were deemed to be reliable and feasible...
December 24, 2017: Animals: An Open Access Journal From MDPI
M Villettaz Robichaud, J Rushen, A M de Passillé, E Vasseur, D Haley, K Orsel, D Pellerin
Improving animal welfare on farm can sometimes require substantial financial investments. The Canadian dairy industry recently updated their Code of Practice for the care of dairy animals and created a mandatory on-farm animal care assessment (proAction Animal Care). Motivating dairy farmers to follow the recommendations of the Code of Practice and successfully meet the targets of the on-farm assessment can be enhanced by financial gain associated with improved animal welfare. The aim of the current study was to evaluate the association between meeting or not meeting several criteria from an on-farm animal welfare assessment and the farms' productivity and profitability indicators...
December 28, 2017: Journal of Dairy Science
H C Weigele, L Gygax, A Steiner, B Wechsler, J-B Burla
Lameness is one of the most prevalent diseases affecting the welfare of cows in modern dairy production. Lameness leads to behavioral changes in severely lame cows, which have been investigated in much detail. For early detection of lameness, knowledge of the effects of moderate lameness on cow behavior is crucial. Therefore, the behavior of nonlame and moderately lame cows was compared on 17 Swiss dairy farms. On each farm, 5 to 11 nonlame (locomotion score 1 of 5) and 2 to 7 moderately lame (locomotion score 3 of 5) cows were selected for data collection in two 48-h periods (A, B) separated by an interval of 6 to 10 wk...
December 28, 2017: Journal of Dairy Science
M Villettaz Robichaud, J Rushen, A M de Passillé, E Vasseur, D B Haley, D Pellerin
In order for dairy producers to comply with animal welfare recommendations, financial investments may be required. In Canada, a new dairy animal care assessment program is currently being implemented under the proAction Initiative to determine the extent to which certain aspects of the Code of Practice are being followed and to assess the care and well-being of dairy cattle on farm. The aim of the current study was to evaluate the association between meeting the proAction animal-based and the electric trainer placement criteria and certain aspects of productivity and profitability on tiestall dairy farms...
December 28, 2017: Journal of Dairy Science
Claire Grant, Jasmeet Kaler, Eamonn Ferguson, Holly O'Kane, Laura Elizabeth Green
The aim of this study was to evaluate the effectiveness of three knowledge-transfer intervention trial types (postal, group, one-to-one) to promote best practice to treat sheep with footrot. Further aims were to investigate whether farmer behaviour (i.e. management of lameness) before the trial was associated with uptake of best practice and whether the benefits of best practice framed positively or negatively influenced change in behaviour. The intervention was a message developed from evidence and expert opinion...
January 1, 2018: Preventive Veterinary Medicine
Kate J Dutton-Regester, Tamsin S Barnes, John D Wright, John I Alawneh, Ahmad R Rabiee
Foot lesions causing lameness in dairy cows are important economic and welfare issues. Prompt and correct detection and diagnosis are critical for improving economic and welfare outcomes. Few tests are currently available to aid the dairy farmer in the detection and diagnosis of foot lesions. The objectives of this systematic review were to identify those tests that have been investigated for the detection and diagnosis of foot lesions causing lameness in dairy cows, evaluate the methodological quality of the studies investigating the identified tests, compare the accuracy of the identified test, and determine which tests can be recommended for implementation on the farm based on accuracy and practicality for use by dairy farmers...
January 1, 2018: Preventive Veterinary Medicine
David B Needle, Olga Iglikova, Andrew D Miller
A 7-y-old Black Russian Terrier dog was evaluated for chronic lameness of the right forelimb and concurrent weight loss. Clinical examination revealed a pigmented mass arising from digit 4 of the right forelimb; the digit was amputated and submitted for histologic evaluation. Histologically, the neoplasm was composed of ill-defined streams, sheets, and clusters of melanocytes admixed with a distinct population of malignant epithelial cells forming glands and nests. The diagnosis was a biphasic malignant melanoma adenocarcinoma, a rarely reported neoplasm in human medicine that has not been described in veterinary medicine, to our knowledge...
December 1, 2017: Journal of Veterinary Diagnostic Investigation
Sang-Ik Oh, Jong Wan Kim, Ji-Youl Jung, Myeongju Chae, Yu-Ran Lee, Jong Ho Kim, ByungJae So, Ha-Young Kim
Streptococcus dysgalactiae subspecies equisimilis (SDSE) is an emerging pathogen in animals and humans. Here, we describe two clinical swine cases of SDSE infection presenting with lameness, neurological signs, or sudden death. Pathological examination indicated suppurative arthritis, encephalitis, and multifocal abscesses in the kidney and heart. β-hemolytic colonies from the joint samples of each case were identified as SDSE. The isolates showed low minimum inhibitory concentration values for β-lactams and presented the same virulence gene profile (slo-/sagA+/pSTKP8+)...
December 28, 2017: Journal of Veterinary Science
M F Sepulveda Caviedes, B S Forbes, T Pfau
BACKGROUND: With the view of implementing gait symmetry measurements in Thoroughbreds in training for early detection of injuries, repeatability of inertial measurement unit (IMU) gait parameters needs to be established. OBJECTIVES: To assess the variation of head and pelvis movement symmetry in Thoroughbreds in training. STUDY DESIGN: Repeated observations in horses in race training. METHODS: Daily and weekly repeat gait assessments were conducted in 14 Thoroughbreds equipped with IMUs on poll, sacrum and right (RTC) and left (LTC) tuber coxae...
December 28, 2017: Equine Veterinary Journal
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