| Home | << 1 2 3 4 5 6 7 8 9 10 >> [11–20] |
|
| Records | |||||
|---|---|---|---|---|---|
| Author | Granquist, S.M.; Thorhallsdottir, A.G.; Sigurjonsdottir, H. | ||||
| Title | The effect of stallions on social interactions in domestic and semi feral harems | Type | Journal Article | ||
| Year | 2012 | Publication | Applied Animal Behaviour Science | Abbreviated Journal  |
|
| Volume | 141 | Issue | 1–2 | Pages | 49-56 |
| Keywords | Horses; Hierarchy; Icelandic horse; Social behaviour; Social bonds | ||||
| Abstract | Earlier research indicates that stallions may supress interactions of their harem members, leading to less stable hierarchies and friendship bonds in harems compared to non-stallion groups. In this paper, the effect of the presense of a stallion on the social behaviour of mares was studied by comparing six harems containing stallions to four mixed sex groups not containing stallions. Both temporary and permanent harems were studied, giving the possibility to investigate the effect of group stability on social interactions. A significant linear hierarchy was found in all non-stallion groups that were used for comparison, while the hierarchies were only found to be linear in three of the six harems containing stallions (Landaus h', p < 0.05). Aggression rate was lower (t-test, p < 0.05) and fewer friendship bonds (G-test, p < 0.0001) were found within the harems, compared to the groups without stallions. Stallions seldom intervene directly in interactions between harem members. Thus, our results give support to the hypothesis that stallions may suppress interactions of harem members, but in a more indirect way than with direct interference. In addition, our results give support for earlier findings that aggression rate may be affected by group stability. We found a higher aggression rate in the temporary harems compared to the permanent harems (Kruskal–Wallis, p < 0.05) and in the temporary non-stallion group compared to the permanent non-stallion group. The results have significance for further research on social structure of mammals, and may be applied in management of domestic animals. | ||||
| Address | |||||
| 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 | 0168-1591 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number | Equine Behaviour @ team @ | Serial | 5619 | ||
| Permanent link to this record | |||||
| Author | Ben-Shlomo, G.; Plummer, C.; Barrie, K.; Brooks, D. | ||||
| Title | Characterization of the normal dark adaptation curve of the horse | Type | Journal Article | ||
| Year | 2012 | Publication | Veterinary Ophthalmology | Abbreviated Journal |
|
| Volume | 15 | Issue | 1 | Pages | 42-45 |
| Keywords | adaptation; curve; dark; electroretinography; equine; scotopic | ||||
| Abstract | Objective The goal of this work is to study the dark adaptation curve of the normal horse electroretinogram (ERG). Procedures The electroretinographic responses were recorded from six healthy female ponies using a contact lens electrode and a mini-Ganzfeld electroretinographic unit. The horses were sedated intravenously with detomidine, an auriculopalpebral nerve block was then performed, and the pupil was fully dilated. The ERG was recorded in response to a low intensity light stimulus (30 mcd.s/m2) that was given at times (T) T = 5, 10, 15, 20, 25, 30, 40, 50, and 60 min of dark adaptation. Off-line analysis of the ERG was then performed. Results Mean b-wave amplitude of the full-field ERG increased continuously from 5 to 25 min of dark adaptation. The b-wave amplitude peaked at T = 25, however, there was no statistical significance between T = 20 and T = 25. The b-wave amplitude then remained elevated with no significant changes until the end of the study at T = 60 (P > 0.49). The b-wave implicit time increased continuously between T = 5 and T = 20, then gradually decreased until T = 60. No distinct a-wave was observed during the testing time. Conclusions Evaluation of horse rod function or combined rod/cone function by means of full-field ERG should be performed after a minimum 20 min of dark adaptation. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Blackwell Publishing Ltd | Place of Publication | Editor | ||
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 1463-5224 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number | Equine Behaviour @ team @ | Serial | 5626 | ||
| Permanent link to this record | |||||
| Author | Hoffmann; G. | ||||
| Title | Bewegungsaktivität und Stressbelastung bei Pferden in Auslaufhaltungssystemen mit verschiedenen Bewegungsangeboten | Type | Manuscript | ||
| Year | 2008 | Publication | Dissertation | Abbreviated Journal |
|
| Volume | Issue | Pages | |||
| Keywords | |||||
| Abstract | Pferdehaltungssysteme mit angrenzenden Ausläufen gelten als eine sehr tiergerechte Haltungsform, da sie den Tieren eine gewisse Bewegungsmöglichkeit bieten. Ziel der vorliegenden Untersuchung war es, zu erfassen, ob der angrenzende Auslauf selbst einen ausreichenden Anreiz zur Bewegung darstellt und wie sich verschiedene Bewegungs- und Platzangebote auf die Bewegungsaktivität von Pferden in einer Gruppen-Auslaufhaltung auswirken. Zudem wurde ermittelt, welche Auswirkung die Bewegungsform bzw. –intensität auf das Wohlbefinden der Tiere hat. Der Großteil der in Deutschland gehaltenen Pferde verbringt die meiste Zeit des Tages im Stall, obwohl mittlerweile bekannt ist, dass Pferde unter natürlichen Haltungsbedingungen 12 bis 16 Stunden des Tages in Bewegung verbringen. Der Optimierung der Stallhaltungssysteme gilt daher ein besonderes Interesse. Zu diesem Zweck wurden von September 2004 bis Oktober 2005 Versuche mit 24 Warmblutstuten im Alter von 1½ bis 3½ Jahren in Einzel- und Gruppen- Auslaufhaltungssystemen durchgeführt. Jeweils sechs Pferde bildeten eine Versuchsgruppe. In jeder Gruppe fanden fünf Varianten von einer ca. dreiwöchigen Dauer statt. Die Gruppenhaltung wurde dabei durch drei unterschiedliche Zusatzbewegungsangebote (2 Std. Weide / Tag, 2 Std. unbegrünte Koppel / Tag, 1 Std. Freilauf- Führanlage / Tag) ergänzt. In der Einzel-Auslaufhaltung (Box mit 45 m²-großem angrenzenden Auslauf) und in einer Versuchsvariante der Gruppenhaltung bekamen die Pferde hingegen keine zusätzliche Bewegung außerhalb des Stallhaltungssystems angeboten. Das Gruppenhaltungssystem selbst war durch die räumliche Trennung der Funktionsbereiche (Liegen, Fressen, Trinken, Bewegen) gekennzeichnet und der angrenzende Auslauf war 270 m² groß. In einer zusätzlichen Versuchsphase fand in der Gruppenhaltung eine Erweiterung des permanent zugänglichen Auslaufs auf insg. 540 m² statt. Die Bewegungsaktivität wurde mit Pedometern erfasst, die an jeweils einem Hinterbein der Pferde befestigt wurden und ergänzend fand eine Analyse von Videoaufzeichnungen statt. Zur Beurteilung der Stressbelastung fanden Messungen der Herz192 Zusammenfassung frequenzvariabilität (Parameter HF und SD2) und der fäkalen Cortisolmetabolitenkonzentration statt. Die Auswertung des Bewegungsverhaltens ergab, dass eine zusätzliche zweistündige freie Bewegung der Pferdegruppe auf einer Weide zu einer deutlichen Steigerung der durchschnittlichen Bewegungsaktivität (149,6 Min. / Tag) führt, ebenso wie eine einstündige Bewegung in einer Führanlage (173,0 Min. / Tag). Eine unbegrünte Koppel regte die Pferde der Gruppenhaltung hingegen nicht zu vermehrter Bewegung an (131,6 Min. / Tag), sondern bewirkte z. T. sogar eine Abnahme der Bewegungsaktivität. In der Gruppen-Auslaufhaltung ohne zusätzliches Bewegungsangebot war die Bewegungsaktivität ebenfalls gering (125,8 Min / Tag) und während der Einzel-Auslaufhaltung ohne Zusatzbewegung zeigten die Pferde die geringste Bewegungsaktivität (102,3 Min. / Tag). Bei der alleinigen Analyse der Bewegungszeit im Stallhaltungssystem war kein signifikanter Einfluss der zusätzlichen Bewegung außerhalb des Stallsystems auf die übrige Fortbewegung feststellbar. Auch eine Vergrößerung des an den Stall angrenzenden Auslaufs im Gruppenhaltungssystem hatte keinen steigernden Einfluss auf das Bewegungsverhalten der Pferde. Die Stressbelastung der Pferde war in den Varianten der Gruppenhaltung mit zweistündigem Weidegang (SD2: 82,9 ms; Cortisolmetaboliten: 29,0 nmol / kg Kot) sowie der einstündigen Bewegung in einer Freilauf-Führanlage (SD2: 99,2 ms; Cortisolmetaboliten: 27,7 nmol / kg Kot) am geringsten. Die Untersuchungen zeigten eine Stresszunahme in der Gruppenhaltung mit zweistündigem Auslauf auf einer unbegrünten Koppel ohne Futterangebot (SD2: 101,3 ms; Cortisolmetaboliten: 39,6 nmol / kg Kot) sowie in der Variante der Gruppenhaltung ohne zusätzliches Bewegungsangebot (SD2: 113,3 ms; Cortisolmetaboliten: 38,4 nmol / kg Kot). Dem Mittelwert der Gruppe nach zu folgern hatten die Pferde während der Einzelhaltung ohne Zusatzbewegung eine sehr große Stressbelastung (SD2: 123,8 ms; Cortisolmetaboliten: 37,5 nmol / kg Kot). Ein Vergleich der Gruppen- und Einzelhaltung hinsichtlich der Herzfrequenzvariabilität hat jedoch gezeigt, dass insg. 70 % der Pferde während der Haltung in einer Gruppe weniger Stress empfinden. Es gab aber auch Zusammenfassung 193 Pferde (30 %), die in der Einzelhaltung eine abnehmende Stressbelastung zeigten, wobei hier der Einfluss der Rangordnung eine entscheidende Rolle zu spielen scheint. Durch die Auswertung mehrerer Messparameter (sowohl für Stress- als auch für Bewegungsverhalten) werden gleichgerichtete Tendenzen bei den Versuchsvarianten deutlich, allerdings ist eine eindeutige Gewichtung der Parameter nicht möglich. Somit ist die methodische Vorgehensweise dieser Untersuchung sehr positiv und als notwendig anzusehen, da die Messdaten auch immer gewissen Schwankungen durch externe Einflüsse unterliegen. Allgemein ist festzuhalten, dass Auslaufhaltungssysteme zwar eine gewisse Anregung zur Bewegung bieten, aber mit maximal vier Stunden (insg. 62 – 248 Min.) Bewegung pro Tag war der tägliche Anteil an Bewegung sehr viel geringer als beispielsweise bei Pferden in freier Wildbahn oder ganzjähriger Weidehaltung. Somit deckt ein Auslaufhaltungssystem trotz getrennter Funktionsbereiche und eines großen Auslaufs nicht den Bewegungsbedarf der Pferde, wenn keine zusätzlichen Bewegungsanreize und –möglichkeiten angeboten werden. Eine zusätzliche Bewegung von Pferden ist nicht nur zur Gesunderhaltung des Bewegungsapparates und der Körperfunktionen notwendig, sondern auch um das Wohlbefinden und die Ausgeglichenheit der Pferde zu steigern. [Horse husbandry systems with close-by discharge are considered to be a very livestock- friendly housing form, as they offer a certain movement opportunity for the animals. The aim of the present study was to examine how different movement and space offerings affect the movement activities of horses in a group horse husbandry with close-by discharge, and whether the discharge provides itself an adequate incentive for movement. The impact that the form or rather intensity of movement has on the wellbeing of the animals was also established. Most of the horses held in Germany spend most of the day in the stable, although it is meanwhile known that horses under natural housing conditions are 12 to 16 hours of the day in motion. Therefore the improvement of stable housing systems applies a special interest. For this purpose, 24 warmblood mares, aged from 1½ to 3½ years, were studied in single and group discharge husbandry systems from September 2004 until October 2005. Six horses formed an experimental group. In every group five variants of approximately three weeks were proceeded. Thereby the group husbandry was supplemented with three different additional movement opportunities (2 h pasture / day, 2 h non-grassy pasture land / day, 1 h free range horse walker / day). In the single discharge husbandry (single box with 45 sq. m-large close-by discharge) and in one experimental variant of the group husbandry got the horses, however, offered no additional movement outside the husbandry system. The group husbandry system itself was marked by the spatial division of the functional areas (lying, eating, drinking, moving) and the close-by discharge measured 270 sq. m. In an additional phase of the study, and expansion of the permanently accessible close-by discharge to 540 sq. m was found. The movement activity was documented with pedometers attached respectively to one hind leg of the horse and a supplementary analysis of video documentation. To evaluate the stress exposure measurements of heart frequency variability (parameters HF and SD2) and of the faecal cortisol metabolite concentration were performed. Summary 195 The interpretation of the movement behaviour showed that additional two hours of free movement on a pasture led to a significant increase in the average movement activity (149.6 min / day), as well as one hour movement in a horsewalker did (173.0 min / day). The non-grassy pasture land, however, didn’t inspire the horses of the group husbandry to increased movement (131.6 min / day), but sometimes even caused a decrease in movement activity. In the group discharge husbandry without additional movement opportunities the movement activity was also low (125.8 min / day), and during the single discharge husbandry without additional movement the horses showed the least movement activity (102.3 min / day). In analysing only the movement time in the stable system was no significant impact of the additional movement outside the housing system to the rest of locomotion ascertainable. As well an expansion of the close-by stable discharge in the group husbandry system had no increasing influence on the movement behaviour of the horses. The stress exposure of the horses was least in the variations of group husbandry with two hours on a pasture (SD2: 82.9 ms; cortisol metabolites: 29.0 nmol / kg faeces) as well as one hour of movement in a free range horse walker (SD2: 99.2 ms; cortisol metabolites: 27.7 nmol / kg faeces). The studies showed a rise in stress in group husbandry with two hours of movement on a non-grassy pasture land without feeding opportunity (SD2: 101.3 ms; cortisol metabolites: 39.6 nmol / kg faeces) as well as in the variation of the group husbandry without additional movement offerings (SD2: 113.3 ms; cortisol metabolites: 38.4 nmol / kg faeces). Judging from the mean of the group the horses had a very high stress exposure in the variation of the single husbandry without additional movement offerings (SD2: 123.8 ms; cortisol metabolites: 37.5 nmol / kg faeces). But a comparison of the group and single husbandry in terms of the heart frequency variability showed that alltogether 70 % of the horses experienced less stress if hold in a group. However, some horses (30 %) showed reducing stress in the single husbandry, whereas here the influence of social hierarchy seems to play a decisive role. 196 Summary In consequence of the examination of several measuring parameters (both for stressand for movement behaviour) parallel aligned tendencies become apparent in the experimental variants, however, is a unique weighting of the parameters not possible. Thus, the methodological approach of this study is to be regarde as very positive and necessary, since the data always vary with some fluctuations by external influences. In general it can be established that discharge husbandry systems offer some incentive for the horse to move, but with a maximum of four hours (overall 62 – 248 min) of movement per day, the daily proportion of movement was much less than, for example, in the case of wild horses or year-round pasture keeping. Thus, if no additional movement incentives and possibilities are offered, the discharge husbandry system doesn’t cover the movement needs of the horse despite separate functional areas and a large outside discharge. Additional movement is not only necessary to keep the musculoskeletal system and bodily functions of the horse healthy, but also to ensure the horse’s well being and mental balance.] |
||||
| Address | |||||
| 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 | ISBN | Medium | |||
| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number | Equine Behaviour @ team @ | Serial | 5660 | ||
| Permanent link to this record | |||||
| Author | Hoffmann, G.; Bockisch, F.-J.; Kreimeier, P. | ||||
| Title | Einfluss des Haltungssystems auf die Bewegungsaktivität und Stressbelastung bei Pferden in Auslaufhaltungssystemen | Type | Journal Article | ||
| Year | 2009 | Publication | Landbauforschung – vTI Agriculture and Forestry Research | Abbreviated Journal |
|
| Volume | 2 | Issue | 59 | Pages | 105-112 |
| Keywords | Bewegung, Cortisol, Herzfrequenzvariabilität (HFV), Pferd, Verhalten [movement, cortisol, heart rate variability (HRV), horse, behaviour] | ||||
| Abstract | Frühere Untersuchungen haben gezeigt, dass die tägliche Bewegung für die Gesunderhaltung der Pferde notwendig ist. Inwieweit sich jedoch unterschiedliche Bewegungsangebote auf das Stress-und Bewegungsverhalten von Pferden in einer Gruppen-Auslaufhaltung auswirken und ob der Bewegungsbedarf der Pferde durch eine Auslaufhaltung ohne zusätzliche Bewegung gedeckt werden kann, ist der Literatur bisher nicht zu entnehmen. Daher sollte in der nachfolgend beschriebenen Untersuchung der Frage nachgegangen werden, welche Auswirkungen verschiedene Bewegungsangebote auf die Bewegungsaktivität von Pferden in Gruppen-Auslaufhaltungen haben und ob diese das Wohlbefinden der Tiere beeinflussen. Letzteres wurde durch Messung der Herzfrequenzvariabilität und Bestimmung von Cortisolmetaboliten im Pferdekot erfasst und die Bewegungsaktivität der Pferde wurde mit ALT-Pedometern bestimmt. Verglichen wurden eine Einzel-und Gruppenhaltung mit jeweils angrenzendem Auslauf, aber ohne eine zusätzliche Bewegung der Pferde außerhalb des Stalls. In drei weiteren Varianten der Gruppenhaltung bekamen die Pferde täglichen Auslauf auf einer unbegrünten Koppel, auf einer Weide oder durch gezielte Bewegung in einer Führanlage. Die Bewegungsaktivität konnte durch die zusätzliche Bewegung in Form von Weide oder Führanlage signifikant gesteigert werden. Ein zusätzliches Bewegungsangebot führte bei den Pferden zu einer Abnahme der Stressbelastung und sollte auch den Pferden ermöglicht werden, die in einer Gruppenhaltung gehalten werden, um ihre physische und psychische Gesundheit zu erhalten. [Former studies confirm the necessity of daily movement for the health of a horse. But so far no description could be found in the literature how different movement offerings impact the stress and movement behaviour of horses in group husbandries with close-by discharge. The same holds true for the question whether a discharge husbandry system can meet the movement requirements of horses if there isn�t any additional movement possibility. The aim of the present study was to examine different movement offerings, their effects on the movement activities of horses in a group horse husbandry with close-by discharge and the impact of the movement on the wellbeing of the animals. The heart rate variability and the concentration of the cortisol metabolites in the horse excrement were analyzed for detecting the wellbeing of the horses. Additionally ALT-Pedometers were used for determining the movement activity. A single and a group husbandry system, each with closeby discharge, were compared when horses had no additional movement outside the stable. In three further variants the group husbandry was supplemented with daily time on a non-grassy pasture land, a pasture or in a horse walker. Pasture or horse walker increased movement activity significantly. Nevertheless an additional movement offering resulted in a lower stress load of the horses and should also be allowed to horses in group husbandry systems to ensure the horse�s physical and mental health.] |
||||
| Address | |||||
| 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 | ISBN | Medium | |||
| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number | Equine Behaviour @ team @ | Serial | 5661 | ||
| Permanent link to this record | |||||
| Author | Horváth, G.; Blahó, M.; Kriska, G.; Hegedüs, R.; Gerics, B.; Farkas, R.; Åkesson, S. | ||||
| Title | An unexpected advantage of whiteness in horses: the most horsefly-proof horse has a depolarizing white coat | Type | Journal Article | ||
| Year | 2010 | Publication | Proceedings of the Royal Society B: Biological Sciences | Abbreviated Journal |
|
| Volume | 277 | Issue | 1688 | Pages | 1643-1650 |
| Keywords | |||||
| Abstract | White horses frequently suffer from malign skin cancer and visual deficiencies owing to their high sensitivity to the ultraviolet solar radiation. Furthermore, in the wild, white horses suffer a larger predation risk than dark individuals because they can more easily be detected. In spite of their greater vulnerability, white horses have been highly appreciated for centuries owing to their natural rarity. Here, we show that blood-sucking tabanid flies, known to transmit disease agents to mammals, are less attracted to white than dark horses. We also demonstrate that tabanids use reflected polarized light from the coat as a signal to find a host. The attraction of tabanids to mainly black and brown fur coats is explained by positive polarotaxis. As the host's colour determines its attractiveness to tabanids, this parameter has a strong influence on the parasite load of the host. Although we have studied only the tabanid–horse interaction, our results can probably be extrapolated to other host animals of polarotactic tabanids, as the reflection–polarization characteristics of the host's body surface are physically the same, and thus not species-dependent. | ||||
| Address | |||||
| 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 | ISBN | Medium | |||
| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number | Equine Behaviour @ team @ | Serial | 5702 | ||
| Permanent link to this record | |||||
| Author | Galef, G.G. Jr. | ||||
| Title | Social learning: promotor or inhibitor of innovation? | Type | Book Chapter | ||
| Year | 2003 | Publication | Animal Intelligence | Abbreviated Journal |
|
| Volume | Issue | Pages | |||
| Keywords | |||||
| Abstract | |||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Oxford University Press | Place of Publication | Oxford | Editor | Reader, S.M.; Laland, K. N. |
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | ISBN | Medium | |||
| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number | Equine Behaviour @ team @ | Serial | 5750 | ||
| Permanent link to this record | |||||
| Author | Hoffmann, G.; Bentke, A.; Rose-Meierhöfer, S.; Berg, W.; Mazetti, P.; Hardarson, G.H. | ||||
| Title | Influence of an active stable system on the behavior and body condition of Icelandic horses | Type | Journal Article | ||
| Year | 2012 | Publication | animal | Abbreviated Journal |
|
| Volume | 6 | Issue | 10 | Pages | 1684-1693 |
| Keywords | activity, automatic feeding system, behavior, body condition score, Icelandic horse | ||||
| Abstract | Horses are often stabled in individual boxes, a method that does not meet their natural needs and may cause psychical and musculoskeletal diseases. This problem is particularly evident in Iceland, where horses often spend the long winter periods in cramped boxes. The aim of this study was to analyze the suitability of a group housing system in Iceland, but the results are also applicable to horses of other regions. Eight Icelandic horses were observed in an active stable system, and their behavior and time budget were recorded. Movement and lying behavior were studied with ALT (Activity, Lying, Temperature detection) pedometers. The effect of an automatic concentrate feeding station (CFS) on the horses’ behavior was examined. In the first period of investigation, the horses were fed concentrates manually, and in the second period, they were fed with the CFS. Additional behavioral observations and a determination of social hierarchy occurred directly or by video surveillance. The physical condition of the horses was recorded by body weight (BW) measurement and body condition scoring (BCS). The results showed a significant increase between the first and second trial periods in both the activity (P,0.001) and the lying time (P50.003) of the horses with use of the CFS. However, there was no significant change in BW during the first period without the CFS (P50.884) or during the second period with the CFS (P50.540). The BCS of the horses was constant at a very good level during both trial periods, and the horses showed a low level of aggression, a firm social hierarchy and behavioral synchronization. This study concludes that group housing according to the active stable principle is a welfare-friendly option for keeping horses and is a suitable alternative to conventional individual boxes. |
||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Cambridge Journals Online | Place of Publication | Editor | ||
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 1751-732x | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number | Equine Behaviour @ team @ | Serial | 5759 | ||
| Permanent link to this record | |||||
| Author | Shen, Y.-Q.; Hebert, G.; Lin, L.-Y.; Luo, Y.-L.; Moze, E.; Li, K.-S.; Neveu, P.J. | ||||
| Title | Interleukine-1β and interleukine-6 levels in striatum and other brain structures after MPTP treatment: influence of behavioral lateralization | Type | Journal Article | ||
| Year | 2005 | Publication | Journal of Neuroimmunology | Abbreviated Journal |
|
| Volume | 158 | Issue | 1–2 | Pages | 14-25 |
| Keywords | N-methyl-4-phenyl-1,2,3,6-tetrahydropyridine; Dopamine; Brain; Interleukin-6; Interleukin-1β; Behavioral lateralization | ||||
| Abstract | MPTP (N-methyl-4-phenyl-1,2,3,6-tetrahydropyridine) induces diminution of the dopamine in nigrostriatal pathway and cognitive deficits in mice. MPTP treatment also increases pro-inflammatory cytokine production in substantia nigra and striatum. Since, pro-inflammatory cytokines influence striatal dopamine content and provoke cognitive impairments, the cognitive defects induced by MPTP may be partly due to brain cytokine induction in other structures than nigrostriatal pathway. Furthermore, behavioral lateralization, as assessed by paw preference, influences cytokine production at the periphery and in the central nervous system. Behavioral lateralization may thus influence brain cytokine levels after MPTP. In order to address these issues, mice selected for paw preference were injected with 25 mg/kg MPTP i.p. for five consecutive days after which striatal dopamine and DOPAC contents were measured by HPLC and IL-1β and IL-6 quantified by ELISA in the striatum, cerebral cortex, hippocampus and hypothalamus. The results showed that MPTP treatment induced dramatic loss of DA in striatum, simultaneously, IL-6 levels decreased in the striatum and increased in hippocampus and hypothalamus, while IL-1β levels decreased in the striatum, cerebral cortex and hippocampus. Interestingly, striatal dopamine turnover under basal conditions as well as striatal IL-1β and IL-6 levels under basal conditions and after MPTP depended on behavioral lateralization. Left pawed mice showed a higher decrease in dopamine turnover and lower cytokine levels as compared to right pawed animals. Behavioral lateralization also influenced IL-6 hippocampal levels under basal conditions and IL-1β cortical levels after MPTP. From these results, it can be concluded that MPTP-induced cognitive defects are accompanied by an alteration of pro-inflammatory cytokine levels in brain structures other than those involved in the nigrostriatal pathway. In addition, MPTP-induced dopamine decrease is influenced by behavioral lateralization, possibly through an effect on brain cytokine levels. | ||||
| Address | |||||
| 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 | 0165-5728 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number | Equine Behaviour @ team @ | Serial | 5781 | ||
| Permanent link to this record | |||||
| Author | Quaranta, A.; Siniscalchi, M.; Frate, A.; Vallortigara, G. | ||||
| Title | Paw preference in dogs: relations between lateralised behaviour and immunity | Type | Journal Article | ||
| Year | 2004 | Publication | Behavioural Brain Research | Abbreviated Journal |
|
| Volume | 153 | Issue | 2 | Pages | 521-525 |
| Keywords | Paw preference; Lateralisation; Immunity; Dog | ||||
| Abstract | Paw use in a task consisting of the removal of a piece of adhesive paper from the snout was investigated in 80 mongrel and pure-bred domestic dogs (Canis familiaris). Population lateralisation was observed, but in opposite directions in the two sexes (animals were not desexed): males preferentially used their left paw, females their right paw. The relationship between immune function and paw preference was then investigated. Some immune parameters (total number of white blood cells including lymphocytes, granulocytes and monocytes; leukocyte formula; total proteins; γ-globulins) were investigated in a sample of left-pawed (n=6), right-pawed (n=6) and ambidextrous (n=6) dogs. The results showed that the percentage of lymphocytes was higher in left-pawed than in right-pawed and ambidextrous dogs, whereas granulocytes percentage was lower in left-pawed than in right-pawed and ambidextrous dogs. Moreover, total number of lymphocytes cells was higher in left-pawed than in right-pawed and ambidextrous dogs, whereas the number of γ-globulins was lower in left-pawed than in right-pawed and ambidextrous dogs. These findings represent the first evidence that brain asymmetry modulates immune responses in dogs. | ||||
| Address | |||||
| 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 | 0166-4328 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number | Equine Behaviour @ team @ | Serial | 5783 | ||
| Permanent link to this record | |||||
| Author | Siniscalchi, M.; Sasso, R.; Pepe, A.M.; Dimatteo, S.; Vallortigara, G.; Quaranta, A. | ||||
| Title | Catecholamine plasma levels following immune stimulation with rabies vaccine in dogs selected for their paw preferences | Type | Journal Article | ||
| Year | 2010 | Publication | Neuroscience Letters | Abbreviated Journal |
|
| Volume | 476 | Issue | 3 | Pages | 142-145 |
| Keywords | Physiology; Behavior; Lateralization; Catecholamines; Paw preference; Neuro-immune-modulation | ||||
| Abstract | Epinephrine and norepinephrine plasma levels were assessed in dogs in relation to paw preference following an immune challenge with rabies vaccine. The results showed that both catecholamines increased after the vaccine administration, confirming the main role of the sympathetic nervous system in the modulation activity between the brain and the immune system. Moreover, ambidextrous dogs showed a significantly higher increase of epinephrine levels 8 days after immunization with respect to right- and left-pawed dogs, suggesting that the biological activity of this molecule could be key for a different immune response with regard to laterality. | ||||
| Address | |||||
| 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 | 0304-3940 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number | Equine Behaviour @ team @ | Serial | 5788 | ||
| Permanent link to this record | |||||