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Author  |
Fazio, E.; Ferlazzo, A. |
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Title |
Evaluation of Stress During Transport |
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Year |
2003 |
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Veterinary Research Communications |
Abbreviated Journal |
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27 |
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519-524 |
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Keywords |
hormones – physiological variables – stress – transport procedures |
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Abstract |
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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Author |
Fazio, F.; Assenza, A.; Piccione, G.; Caola, G. |
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Title |
Periodic Monitoring of Some Physiological Parameters during Training in the Athletic Horse |
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Journal Article |
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Year |
2003 |
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Veterinary Research Communications |
Abbreviated Journal |
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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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Author |
Flauger, B.; Krueger, K.; Gerhards, H.; Möstl, E. |
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Title |
Simplified method to measure glucocorticoid metabolites in faeces of horses |
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Journal Article |
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Year |
2010 |
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Veterinary Research Communications |
Abbreviated Journal |
Vet Res Comm |
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34 |
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2 |
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185-195 |
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ACTH challenge; enzyme immunoassay; stress behaviour; cortisol |
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Glucocorticoids or their metabolites can be measured in several body fluids or excreta, including plasma, saliva, urine and faeces. In recent years the measurement of glucocorticoid metabolites (GCMs) in faeces has gained increasing attention, because of its suitability for wild populations. In horses, however, the group-specific enzyme immunoassay described so far has a limited racticability due to its complex extraction procedure. Therefore, we tested the applicability of
other enzyme immunoassays for glucocorticoid metabolites. The present study clearly proved that an enzyme immunoassay (EIA) for 11-oxoetiocholanolone using 11-oxoetiocholanolone-17-CMO: BSA (3α,11-oxo-A EIA) as antigen showed high amounts of immunoreactive substances. Therefore it was possible to use just a small amount of the supernatant of a methanolic suspension of faeces. The results
correlated well with the already described method for measuring GCMs in horse faeces, i.e. analysing the samples with an EIA after a two step clean up procedure of the samples (Merl et al. 2000). In addition, the 3α,11-oxo-A EIA has the advantage of providing a bigger difference between baseline values and peak values after ACTH stimulation. The new assay increased the accuracy of the test,
lowered the expenses per sample, and storing samples at room temperature after collection was less critical than with other assays investigated in our study. This is a big advantage both in the field of wildlife management of equids and in the field of equestrian sports and it shows the importance of choosing an assay which is in good accordance with the metabolites excreted in a given species. |
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Equine Behaviour @ team @ |
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5073 |
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Author |
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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Year |
2001 |
Publication |
Veterinary Research Communications |
Abbreviated Journal |
Vet.Res.Comm |
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Volume |
25 |
Issue |
7 |
Pages |
591-599 |
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Keywords |
albumin – bovine – equine – erythrocyte aggregation – dextran – haemorheology – human – plasma protein – polyvinylpyrrolidone |
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Abstract |
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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