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Author Spengler M.I.; Rasia M.
Title Influence of Plasma Proteins on Erythrocyte Aggregation in Three Mammalian Species Type Journal Article
Year 2001 Publication Veterinary Research Communications Abbreviated Journal (down) Vet.Res.Comm
Volume 25 Issue 7 Pages 591-599
Keywords albumin – bovine – equine – erythrocyte aggregation – dextran – haemorheology – human – plasma protein – polyvinylpyrrolidone
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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Notes Approved no
Call Number refbase @ user @ Serial 2013
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Author Palm, A.-K.E.; Wattle, O.; Lundström, T.; Wattrang, E.
Title Secretory immunoglobulin A and immunoglobulin G in horse saliva Type Journal Article
Year 2016 Publication Veterinary Immunology and Immunopathology Abbreviated Journal (down) Vet. Immunol. Immunolpathol.
Volume 180 Issue Pages 59-65
Keywords Equine; Secretory IgA; IgG; Saliva; Mucosal immunity
Abstract This study aimed to increase the knowledge on salivary antibodies in the horse since these constitute an important part of the immune defence of the oral cavity. For that purpose assays to detect horse immunoglobulin A (IgA) including secretory IgA (SIgA) were set up and the molecular weights of different components of the horse IgA system were estimated. Moreover, samples from 51 clinically healthy horses were tested for total SIgA and IgG amounts in saliva and relative IgG3/5 (IgG(T)) and IgG4/7 (IgGb) content were tested in serum and saliva. Results showed a mean concentration of 74μg SIgA/ml horse saliva and that there was a large inter-individual variation in salivary SIgA concentration. For total IgG the mean concentration was approx. 5 times lower than that of SIgA, i.e. 20μg IgG/ml saliva and the inter-individual variation was lower than that observed for SIgA. The saliva-serum ratio for IgG isotypes IgG3/5 and IgG4/7 was also assessed in the sampled horses and this analysis showed that the saliva-serum ratio of IgG4/7 was in general approximately 4 times higher than that of IgG3/5. The large inter-individual variation in salivary SIgA levels observed for the normal healthy horses in the present study emphasises the need for a large number of observations when studying this parameter especially in a clinical setting. Moreover, our results also indicated that some of the salivary IgG does not originate from serum but may be produced locally. Thus, these results provide novel insight, and a base for further research, into salivary antibody responses of horses.
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Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0165-2427 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number Equine Behaviour @ team @ Serial 6514
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Author Hutchinson, G.W.; Abba, S.A.; Mfitilodze, M.W.
Title Seasonal translation of equine strongyle infective larvae to herbage in tropical Australia Type Journal Article
Year 1989 Publication Veterinary Parasitology Abbreviated Journal (down) Vet Parasitol
Volume 33 Issue 3-4 Pages 251-263
Keywords Animals; Feces/*parasitology; Horses; Queensland; Seasons; Strongyle Infections, Equine/*parasitology; Strongyloidea/growth & development/*physiology; Strongylus/growth & development/*physiology; Tropical Climate
Abstract Longevity in faeces, migration to and survival on herbage of mixed strongyle infective larvae (approximately 70% cyathostomes: 30% large strongyles) from experimentally deposited horse faeces was studied in the dry tropical region of North Queensland for up to 2 years. Larvae were recovered from faeces deposited during hot dry weather for a maximum of 12 weeks, up to 32 weeks in cool conditions, but less than 8 weeks in hot wet summer. Translation to herbage was mainly limited to the hot wet season (December-March), except when unseasonal winter rainfall of 40-50 mm per month in July and August allowed some additional migration. Survival on pasture was estimated at 2-4 weeks in the summer wet season and 8-12 weeks in the autumn-winter dry season (April-August). Hot dry spring weather (pre-wet season) was the most unfavourable for larval development, migration and survival. Peak counts of up to 60,000 larvae kg-1 dry herbage were recorded. The seasonal nature of pasture contamination allowed the development of rational anthelmintic control programs based on larval ecology.
Address Graduate School of Tropical Veterinary Science, James Cook University of North Queensland, Townsville, Australia
Corporate Author Thesis
Publisher Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0304-4017 ISBN Medium
Area Expedition Conference
Notes PMID:2815535 Approved no
Call Number Equine Behaviour @ team @ Serial 2672
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Author Berger, J
Title Wild horses of the Great Basin Type Book Whole
Year 1986 Publication University of Chicago Press, Abbreviated Journal (down) Univ. of Chic. Press
Volume Issue Pages
Keywords wildlife equine behaviour ecology
Abstract Describes the behavior of wild horses living in the Great Basin Desert of Nevada and discusses the role of the horses in the area's ecology
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Corporate Author Thesis
Publisher University of Chicago Press Place of Publication Chicago Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN 0-226-04367-3 Medium
Area Expedition Conference
Notes Approved no
Call Number refbase @ user @ Serial 659
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Author Bertram, D.S.
Title Mosquitoes of British Honduras, with some comments on malaria, and on arbovirus antibodies in man and equines Type Journal Article
Year 1971 Publication Transactions of the Royal Society of Tropical Medicine and Hygiene Abbreviated Journal (down) Trans R Soc Trop Med Hyg
Volume 65 Issue 6 Pages 742-762
Keywords Aedes; Animals; Anopheles; Antibodies/*analysis; Arbovirus Infections/*epidemiology/immunology/veterinary; Belize; Culex; *Culicidae/classification; Ecology; Encephalitis Virus, St. Louis/immunology; Encephalitis Virus, Venezuelan Equine/immunology; Horse Diseases/*epidemiology/immunology; Horses; Humans; Insect Vectors; Malaria/*epidemiology; Neutralization Tests; Seasons
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0035-9203 ISBN Medium
Area Expedition Conference
Notes PMID:4400502 Approved no
Call Number Equine Behaviour @ team @ Serial 2732
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Author Aldridge, B.; Lescun, T.; Radcliffe, J.S.
Title Recent Molecular Advances in Equine Nutrition – from Test Tube to Practice Type Conference Article
Year 2012 Publication Proceedings of the 2. International Equine Science Meeting Abbreviated Journal (down) Proc. 2. Int. Equine. Sci. Mtg
Volume in press Issue Pages
Keywords Molecular Biology, Equine, Gut
Abstract The use of molecular techniques has increased our understanding of biological systems; in particular how genes and proteins operate within a cell or organ in response to various stimuli. These techniques can be used to study modes of action or mechanisms in disease states, or in response to applied management or nutritional changes. While applied and basic research are often conducted independent of one another, the real advantages to the equine industry will come from the use of molecular techniques to address applied challenges and/or opportunities within the industry. Therefore, the overall goal of our research has been to use basic and molecular tools to investigate modes of action resulting from changes in nutrition or management. We investigated active nutrient transport capacities of the small and large intestine, the effects of feed withdrawal on intestinal transporter gene expression and function, as well as other measurements pertaining to gut health (gut barrier function and gastrointestinal morphology). This novel and thorough approach to characterize sectional differences (fore- and hind- gut) of nutrient absorption has resulted in quantitative measures of active transport capacity for glucose, phosphorus, glutamine, lysine, and di-peptides in the horse. This research demonstrates that by-products of fermentation in the cecum such as microbial proteins and hydrolyzed phytate phosphorus, can be absorbed in the colon. Previously unidentified in the hindgut of the horse, we reported the expression of the di-and tri-peptide transporter, PepT1, as well as the neutral amino acid transporter, ASCT2, and transport of their substrates. We observed that nutrient transporters for glucose (SGLT1), glutamine (ASCT2) and for di-peptides (PepT1) can be regulated by diet, implying biological relevance to feeding management strategies. Feed withdrawal in horses pre- or post-surgery, prior to or during horse shows, during transport, or for other management reason is common. It is therefore important to understand how the removals of nutrients impacts gut health and/or disease susceptibility. The use of molecular techniques has provided a basis for the roles of certain core nutrients during times of feed withdrawal. For example, nutrients such as glutamine play a major role in proliferation and repair in the gut, serve as a major energy substrate, and may provide a means of assessing nutritional stress in the gut. Recent data concludes that following a feed withdrawal, the need for glutamine increases up to 116% in the proximal jejunum, and the gene expression of its transporter (ASCT2) increases by 78%. Additional studies utilizing molecular techniques to address nutritional challenges in the horse include how hormone loss due to ovariectomization impacts the homeostatic regulation of calcium and phosphorus in the horse. To improve nutrition and feeding management practices in horses, knowledge regarding how and where nutrients are absorbed, utilized and regulated under varying physiologic stressors (disease, exercise, reproductive status, etc.) is needed. The integration of applied and basic research facilitates a better and more complete understanding of mechanisms underlying common health and nutritional challenges facing the equine industry.
Address
Corporate Author Aldridge, B. Thesis
Publisher Xenophon Publishing Place of Publication Wald Editor Krueger, K.;
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 978-3-9808134-26 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number Equine Behaviour @ team @ Serial 5575
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Author Yarnell, K.; Hall, C.; Royle, C.; Walker, S.L.
Title Domesticated horses differ in their behavioural and physiological responses to isolated and group housing Type Journal Article
Year 2015 Publication Physiology & Behavior Abbreviated Journal (down) Physiol.Behav.
Volume 143 Issue Pages 51-57
Keywords Equine; Behaviour; Corticosterone; Housing
Abstract Abstract The predominant housing system used for domestic horses is individual stabling; however, housing that limits social interaction and requires the horse to live in semi-isolation has been reported to be a concern for equine welfare. The aim of the current study was to compare behavioural and physiological responses of domestic horses in different types of housing design that provided varying levels of social contact. Horses (n = 16) were divided equally into four groups and exposed to each of four housing treatments for a period of five days per treatment in a randomized block design. The four housing treatments used were single housed no physical contact (SHNC), single housed semi-contact (SHSC), paired housed full contact (PHFC) and group housed full contact (GHFC). During each housing treatment, adrenal activity was recorded using non-invasive faecal corticosterone metabolite analysis (fGC). Thermal images of the eye were captured and eye temperature was assessed as a non-invasive measure of the stress response. Behavioural analysis of time budget was carried out and an ease of handling score was assigned to each horse in each treatment using video footage. SHNC horses had significantly higher (p = 0.01) concentrations of fGC and were significantly (p = 0.003) more difficult to handle compared to the other housing types. GHFC horses, although not significantly different, had numerically lower concentrations of fGC and were more compliant to handling when compared to all other housing treatments. Eye temperature was significantly (p = 0.0001) lower in the group housed treatment when compared to all other treatments. These results indicate that based on physiological and behavioural measures incorporating social contact into the housing design of domestic horses could improve the standard of domestic equine welfare.
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Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0031-9384 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number Equine Behaviour @ team @ Serial 5920
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Author König von Borstel, U.; Euent, S.; Graf, P.; König, S.; Gauly, M.
Title Equine behaviour and heart rate in temperament tests with or without rider or handler Type Journal Article
Year 2011 Publication Physiology & Behavior Abbreviated Journal (down) Physiol. Behav.
Volume 104 Issue 3 Pages 454-463
Keywords Equine; Temperament; Human–animal interaction; Horseback riding; Heart rate variability; Reactivity
Abstract The aim of the present study was to compare horses' heart rate (HR), heart rate variability (RMSSD, pNN50) and behaviour in the same temperament test when being ridden, led, and released free. Behavioural measurements included scores and linear measurements for reactivity (R), activity (A), time to calm down (T) and emotionality (E), recorded during the approach (1) and/or during confrontation with the stimulus (2). Sixty-five horses were each confronted 3 times (1 ridden, 1 led, 1 free running in balanced order) with 3 novel and/or sudden stimuli. Mixed model analysis indicated that leading resulted in the lowest (P < 0.05 throughout) reactions as measured by A1, A2, E1, E2, R2, and pNN50 while riding produced the strongest (A1, T2, HR, RMSSD, pNN50) or medium (E1, E2, R2) reactions. Free running resulted either in the strongest (A2, E1, E2, R2) or in the lowest (A1, T2, HR, RMSSD, pNN50) reactions. The repeatability across tests for HR (0.57), but not for RMSSD (0.23) or pNN50 (0.25) was higher than for any behavioural measurement: the latter ranged from values below 0.10 (A1, A2, T2) to values between 0.30 and 0.45 (E1, E2, R2). Overall, the results show that a rider or handler influences, but not completely masks, the horses' intrinsic behaviour in a temperament test, and this influence appeared to be stronger on behavioural variables and heart rate variability than on the horses' heart rates. Taking both practical considerations and repeatabilities into account, reactivity appears to be the most valuable parameter. Emotionality and heart rate can also yield valid results reflecting additional dimensions of temperament although their practical relevance may be less obvious. If a combination of observed variables is chosen with care, a valid assessment of a horse's temperament may be possible in all types of tests. However, in practice, tests that resemble the practical circumstances most closely, i.e. testing riding horses under a rider, should be chosen.
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Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0031-9384 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number Equine Behaviour @ team @ Serial 5641
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Author Ogbourne, C.P.
Title Variations in the fecundity of strongylid worms of the horse Type Journal Article
Year 1971 Publication Parasitology Abbreviated Journal (down) Parasitology
Volume 63 Issue 2 Pages 289-298
Keywords Animals; Animals, Newborn; Ecology; Feces; Female; Horses; Larva/growth & development; Male; Ovum; Parasite Egg Count; Reproduction; Seasons; Strongyle Infections, Equine/*etiology; Strongyloides/*growth & development; Time Factors
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0031-1820 ISBN Medium
Area Expedition Conference
Notes PMID:5129804 Approved no
Call Number Equine Behaviour @ team @ Serial 2727
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Author Steinhoff-Wagner, J.
Title Coat Clipping of Horses: A Survey Type Journal Article
Year 2019 Publication Journal of Applied Animal Welfare Science Abbreviated Journal (down) Journal of Applied Animal Welfare Science
Volume 22 Issue 2 Pages 171-187
Keywords Equine, thermoregulation, shaving, winter pelage removal
Abstract Coat clipping is a common practice in sport horses; however, timing, purpose, technique, and clips vary widely, as do the management and feeding of a clipped horse. The aim of this study was to collect data regarding common clipping practices. A questionnaire was published online in Germany and contained 32 questions. Four hundred ninety-eight people answered at least one question, and 373 individuals (7% male, 93% female; ages 14–59 years) completed all the questions. Clipped horses were predominantly used as sport horses (68%), and they were either clipped immediately before or during the winter season (88%) or year-round (7%). The clipping date was scheduled according to hair length (52%), sweat amount (47%), and drying time (47%). Participants primarily used two clips: the hunter clip and the blanket clip, both without clipping the head (23% each). The majority of the clipped horses wore a blanket day and night (> 90%). Future studies with observations in the field are needed to support survey data in an effort to develop welfare recommendations for clipping practices utilized with horses.
Address
Corporate Author Thesis
Publisher Routledge Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1088-8705 ISBN Medium
Area Expedition Conference
Notes doi: 10.1080/10888705.2018.1454319 Approved no
Call Number Equine Behaviour @ team @ Serial 6613
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