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Fazio, E.; Ferlazzo, A. |
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Title  |
Evaluation of Stress During Transport |
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2003 |
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Veterinary Research Communications |
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27 |
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519-524 |
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hormones – physiological variables – stress – transport procedures |
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Domestic animals are transported for a variety of reasons including breeding, biomedical purposes, slaughter and, in the case of sporting horses, for competitions, pleasure activities or ceremonial proceedings. Studies to determine the amount of stress on farm animals during transport often have highly variable results and are difficult to interpret. The reaction of animals to stressors depends on the duration and intensity of the stressors, the animal's previous experience, its physiological status and the immediate environmental restraints. Behavioural, haematological, haematochemical, physiological and neuro-hormonal (ß-endorphin, ACTH, cortisol, iodothyronines) variables are discussed on the basis of handling, loading and transport procedures of animals. |
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Equine Behaviour @ team @ |
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4391 |
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Atwill, E.R.; Mohammed, H.O.; Lopez, J.W. |
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Title |
Evaluation of travel and use as a risk factor for seropositivity to Ehrlichia risticii in horses of New York state |
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Journal Article |
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Year |
1996 |
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American Journal of Veterinary Research |
Abbreviated Journal |
Am J Vet Res |
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57 |
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3 |
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272-277 |
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Animals; Cross-Sectional Studies; Ehrlichiosis/epidemiology/*veterinary; Female; *Horse Diseases; Horses; Male; New York/epidemiology; Probability; Random Allocation; Risk Factors; *Travel |
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OBJECTIVES--To determine whether mean annual frequency and destination of equine travel was associated with exposure to Ehrlichia risticii and whether these associations were modified by horses' place of residence. DESIGN--Cross-sectional study. SAMPLE POPULATION--511 equine operations containing 2,587 horses were visited in New York state from a target population of 39,000 operations. PROCEDURE--Each horse was tested for serum antibodies against E risticii, using indirect fluorescent antibody. Information on the horse's travel history, farm's management practices, and surrounding ecology was obtained by personal interview and resource maps. Statistical analyses were performed on 2 cohorts of animals: all horses enrolled in the study and horses born on the property or that resided at least 4 years on the farm. Three county-based risk regions (RR) were identified by use of cluster analysis. RESULTS--Mean seroprevalence for each of the 3 RR was 2.4 (low risk), 8.5 (moderate risk), and 18.5% (high risk) for cohort 1 and 2.5, 8.0, and 18.4% for cohort 2. Among cohorts 1 and 2, pleasure riding and breeding trips were associated with exposure to E risticii, but horse residence (low, moderate, or high RR) was an effect modifier for these associations. Among cohort 1 and stratifying the analysis according to the RR for the travel destination, trail riding at low RR and trail riding at high RR were associated with exposure. Among cohort 2 and stratifying the analysis according to the RR for the travel destination, breeding trips were associated with exposure, and strong effect modification was present for horse residence (low, moderate, or high RR). CONCLUSIONS--Only certain types of travel to specific RR were associated with higher risk of exposure to E risticii. In many instances, travel was not associated, or was associated, with a reduced risk of exposure. |
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Department of Clinical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853, USA |
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0002-9645 |
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PMID:8669754 |
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Equine Behaviour @ team @ |
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2658 |
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Parry, B.W.; Gay, C.C.; McCarthy, M.A. |
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Influence of head height on arterial blood pressure in standing horses |
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1980 |
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American Journal of Veterinary Research |
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41 |
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10 |
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1626-1631 |
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Cited By (since 1996): 4; Export Date: 21 October 2008 |
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Equine Behaviour @ team @ |
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4539 |
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Spengler M.I.; Rasia M. |
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Title |
Influence of Plasma Proteins on Erythrocyte Aggregation in Three Mammalian Species |
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Journal Article |
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2001 |
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Veterinary Research Communications |
Abbreviated Journal |
Vet.Res.Comm |
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25 |
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7 |
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591-599 |
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albumin – bovine – equine – erythrocyte aggregation – dextran – haemorheology – human – plasma protein – polyvinylpyrrolidone |
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The aggregation capacity of human erythrocytes lies between that of the non-aggregating bovine erythrocytes and the remarkably aggregating equine ones. As the ability to aggregate is attributed to cell factors and the composition of the plasma proteins, the role that plasma proteins play in the aggregation process in these three species was studied. Washed erythrocytes were suspended in phosphate-buffered saline (PBS; pH 7.4, 300 mOsm/L) plus polyvinylpyrrolidone (PVP) in a suitable concentration to obtain an average intensity of aggregation (control media). The superimposed effect of replacing 80% of the medium by either autologous plasma, serum or albumin solution was studied. The plasma proteins appeared to enhance aggregation by human and equine erythrocytes, but impaired this process in bovine erythrocytes. Some evidence was obtained supporting the existence of serum factors capable of reducing aggregation of erythrocytes in cattle and it was concluded that the non-aggregating behaviour of bovine erythrocytes may be due to the cells interacting particularly with the macromolecules in the serum. |
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refbase @ user @ |
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2013 |
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Houpt, T.R.; Houpt, K.A. |
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Title |
Nitrogen conservation by ponies fed a low -protein ration |
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1971 |
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American journal of veterinary research |
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Am J Vet Res |
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32 |
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4 |
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579-588 |
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Administration, Oral; Amino Acids/biosynthesis; Animals; Anti-Infective Agents/pharmacology; Body Weight/drug effects; Dietary Proteins/*pharmacology; Horses/*metabolism; Nitrogen/*metabolism; Urea/administration & dosage/antagonists & inhibitors/metabolism; Water/metabolism |
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0002-9645 |
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PMID:5110116 |
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refbase @ user @ |
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62 |
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Fazio, F.; Assenza, A.; Piccione, G.; Caola, G. |
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Periodic Monitoring of Some Physiological Parameters during Training in the Athletic Horse |
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2003 |
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Veterinary Research Communications |
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27 |
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595-598 |
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Equine Behaviour @ team @ |
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4384 |
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Knill, L.M.; Eagleton, R.D.; Harver, E. |
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Title |
Physical optics of the equine eye |
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Journal Article |
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1977 |
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American Journal of Veterinary Research |
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Am J Vet Res |
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38 |
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6 |
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735-737 |
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visual system function; Ocular Physiology |
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The equine eye was treated as a general lens system and calculations were done to determine image position in relation to the retina for objects at a distance of infinity, 100 m, and 1 m. The retina is 19.1 mm behind the posterior surface of the lens; therefore, the image appears 14.6 mm posterior to the retina at infinity and at 100 m, and 16.3 mm at 1-m distance on a horizontal axis. The animals studied were hyperopic. It is evident that the horse must move its head or eye, or both, for optimal visual acuity. At the same time, some objects in the total field of vision are imperceptible or indistinct. |
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00029645 (Issn) |
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Cited By (since 1996): 1; Export Date: 15 May 2007; Source: Scopus; Language of Original Document: English; Correspondence Address: Knill, L.M. |
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refbase @ user @ |
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852 |
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Rehbinder, C.; Hau, J. |
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Quantification of cortisol, cortisol immunoreactive metabolites, and immunoglobulin A in serum, saliva, urine, and feces for noninvasive assessment of stress in reindeer |
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2005 |
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Canadian Journal of Veterinary Research |
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Can J Vet Res |
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70 |
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2 |
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151-154 |
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This study was designed to develop reliable methods for quantification of cortisol and cortisol immunoreactive metabolites (C-CIM) and immunoglobulin A (IgA) in reindeer serum, saliva, urine, and feces as tools for the objective noninvasive assessment of well-being and immunocompetence in reindeer. Although C-CIM was readily quantifiable by radioimmunoassay in serum, urine, and feces, the levels in saliva samples were low, rendering quantification unreliable. Whereas IgA concentrations were high in feces samples, they were much lower, albeit quantifiable, in serum and urine; the levels in saliva samples were too low for quantification with the use of an enzyme-linked immunosorbent assay that we developed. Further studies are in progress to validate the usefulness of fecal levels of C-CIM and IgA in the assessment of welfare in reindeer. |
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Canadian Veterinary Medical Association |
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0830-9000 |
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Equine Behaviour @ team @ |
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5852 |
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Kurvers, C.M.H.C.; van Weeren, P.R.; Rogers, C.W.; van Dierendonck, M.C. |
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Quantification of spontaneous locomotion activity in foals kept in pastures under various management conditions |
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Journal Article |
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2006 |
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American journal of veterinary research |
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Am J Vet Res |
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67 |
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7 |
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1212-1217 |
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Aging; Animal Husbandry; Animals; Female; Horses/*physiology; Male; Motor Activity/*physiology; Sex Characteristics |
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OBJECTIVE: To describe spontaneous locomotion activity of foals kept under various management conditions and assess the suitability of global positioning system (GPS) technology for recording foal activity. Animals-59 foals. PROCEDURES: During the foals' first 4 months of life, 921 observation periods (15 minutes each) were collected and analyzed for locomotion activities. The GPS system was evaluated by simultaneously carrying out field observations with a handheld computer. RESULTS: Foals spent 0.5% of total observed time cantering, 0.2% trotting, 10.7% walking, 32.0% grazing, 34.8% standing, and 21.6% lying down. Total observed daytime workload (velocity x distance) in the first month was approximately twice that in the following months. Locomotion activity decreased with increasing age. Colts had more activity than fillies in certain periods, and foals that were stabled for some portion of the day had compensatory locomotion activity, which was probably insufficient to reach the level of foals kept continually outside. The GPS recordings and handheld-computer observations were strongly correlated for canter, trot, and walk and moderately correlated for standing and lying. Correlation for grazing was low. CONCLUSIONS AND CLINICAL RELEVANCE: Results indicated that domestically managed foals, when kept 24 h/d at pasture, will exercise at a level comparable with feral foals. High workload during the first month of life might be important for conditioning the musculoskeletal system. The GPS technique accurately quantified canter, trot, and walk activities; less accurately indexed resting; and was unsuitable for grazing because of the wide array of velocities used while foraging. |
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Department of Equine Sciences, Faculty of Veterinary Medicine, Utrecht University, The Netherlands |
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0002-9645 |
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PMID:16817745 |
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1786 |
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Herron, M.A.; Martin, J.E.; Joyce, J.R. |
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Quantitative study of the decussating optic axons in the pony, cow, sheep, and pig. |
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1978 |
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American Journal of Veterinary Research |
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Am. J. Vet .Res. |
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39 |
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7 |
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1137-9 |
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Equine Behaviour @ team @ |
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5586 |
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