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Yamada, T.; Rojanasuphot, S.; Takagi, M.; Wungkobkiat, S.; Hirota, T. | ||||
| Title | Studies on an epidemic of Japanese encephalitis in the northern region of Thailand in 1969 and 1970 | Type | Journal Article | ||
| Year | 1971 | Publication | Biken Journal | Abbreviated Journal | Biken J |
| Volume | 14 | Issue | 3 | Pages | 267-296 |
| Keywords | Adolescent; Adult; Animals; Arboviruses/immunology; Buffaloes; Cattle; Chickens; Child; Child, Preschool; Cross Reactions; Culicidae; Dengue Virus/immunology; Disease Outbreaks; Ducks; Ecology; Encephalitis Virus, Japanese/immunology/isolation & purification; Encephalitis, Japanese/cerebrospinal fluid/*epidemiology/immunology/microbiology/mortality; Female; Hemagglutination Inhibition Tests; Hemorrhagic Fevers, Viral/epidemiology; Horses; Humans; Infant; Male; Mice; Neutralization Tests; Swine; Thailand | ||||
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| Language | English | Summary Language | Original Title | ||
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| ISSN | 0006-2324 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | PMID:4400462 | Approved | no | ||
| Call Number | Equine Behaviour @ team @ | Serial | 2728 | ||
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| Author |
YALDEN DW et al, | ||||
| Title | Catalogue of the mammals of Ethiopia 6; II. order Perissodactyla; A | Type | Journal Article | ||
| Year | 1986 | Publication | Abbreviated Journal | Family Equidae Monitore Zool italiano Suppl | |
| Volume | 21 | Issue | Pages | 35-41 | |
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| Notes | from Professor Hans Klingels Equine Reference List | Approved | no | ||
| Call Number | Serial | 1726 | |||
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| Author |
Yacoub Khallad | ||||
| Title | Conceptualization in the pigeon: What do we know? | Type | Journal Article | ||
| Year | 2004 | Publication | International Journal of Psychology | Abbreviated Journal | |
| Volume | 39 | Issue | Pages | 73-94 | |
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| Notes | Approved | no | |||
| Call Number | refbase @ user @ | Serial | 3519 | ||
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| Author |
Xitco, M.J.J.; Gory, J.D.; Kuczaj, S.A. 2nd | ||||
| Title | Dolphin pointing is linked to the attentional behavior of a receiver | Type | Journal Article | ||
| Year | 2004 | Publication | Animal Cognition | Abbreviated Journal | Anim. Cogn. |
| Volume | 7 | Issue | 4 | Pages | 231-238 |
| Keywords | *Animal Communication; Animals; *Association Learning; *Attention; Dolphins/*psychology; *Gestures; Humans; Imitative Behavior; Male; Orientation; Posture; Species Specificity | ||||
| Abstract | In 2001, Xitco et al. (Anim Cogn 4:115-123) described spontaneous behaviors in two bottlenose dolphins (Tursiops truncatus) that resembled pointing and gaze alternation. The dolphins' spontaneous behavior was influenced by the presence of a potential receiver, and the distance between the dolphin and the receiver. The present study adapted the technique of Call and Tomasello [(1994) J Comp Psychol 108:307-317], used with orangutans to test the effect of the receiver's orientation on pointing in these same dolphins. The dolphins directed more points and monitoring behavior at receivers whose orientation was consistent with attending to the dolphins. The results demonstrated that the dolphins' pointing and monitoring behavior, like that of apes and infants, was linked to the attentional behavior of the receiver. | ||||
| Address | Space and Naval Warfare Systems Center, Code 235, 53560 Hull Street, CA 92152-5001, San Diego, USA. mark.xitco@navy.mil | ||||
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| Language | English | Summary Language | Original Title | ||
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| ISSN | 1435-9448 | ISBN | Medium | ||
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| Notes | PMID:15088149 | Approved | no | ||
| Call Number | Equine Behaviour @ team @ | Serial | 2526 | ||
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| Author |
Xitco, M.; Gory, J.; Kuczaj, S. | ||||
| Title | Spontaneous pointing by bottlenose dolphins (Tursiops truncatus) | Type | Journal Article | ||
| Year | 2001 | Publication | Animal Cognition | Abbreviated Journal | Anim. Cogn. |
| Volume | 4 | Issue | 2 | Pages | 115-123 |
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| Abstract | Two bottlenose dolphins (Tursiops truncatus) participating in a symbolic communication project spontaneously developed behaviors that resembled pointing and gaze alternation. The dolphins' behavior demonstrated several features reminiscent of referential communicative behavior. It was triadic, involving a signaler, receiver, and referent. It was also indicative, specifying a focus of attention. The dolphins' points were distinct from the act of attending to or acting on objects. Spontaneous dolphin pointing was influenced by the presence of a potential receiver, and the distance between that receiver and the dolphin. These findings suggest that dolphins are capable of producing referential gestures. | ||||
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| Notes | Approved | no | |||
| Call Number | Equine Behaviour @ team @ | Serial | 3111 | ||
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| Author |
Xia, L.; Siemann, M.; Delius, J.D. | ||||
| Title | Matching of numerical symbols with number of responses by pigeons | Type | Journal Article | ||
| Year | 2000 | Publication | Animal Cognition | Abbreviated Journal | Anim. Cogn. |
| Volume | 3 | Issue | 1 | Pages | 35-43 |
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| Abstract | Pigeons were trained to peck a certain number of times on a key that displayed one of several possible numerical symbols. The particular symbol displayed indicated the number of times that the key had to be pecked. The pigeons signalled the completion of the requirement by operating a separate key. They received a food reward for correct response sequences and time-out penalties for incorrect response sequences. In the first experiment nine pigeons learned to allocate 1, 2, 3 or 4 pecks to the corresponding numerosity symbols s1, s2, s3 and s4 with levels of accuracy well above chance. The second experiment explored the maximum set of numerosities that the pigeons were capable of handling concurrently. Six of the pigeons coped with an s1-s5 task and four pigeons even managed an s1-s6 task with performances that were significantly above chance. Analysis of response times suggested that the pigeons were mainly relying on a number-based rather than on a time-based strategy. | ||||
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| Notes | Approved | no | |||
| Call Number | Equine Behaviour @ team @ | Serial | 3163 | ||
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| Author |
Wöhr, A.C.; Erhard, M. | ||||
| Title | Polysonographic studies, about sleeping behaviour of horses | Type | Conference Article | ||
| Year | 2008 | Publication | IESM 2008 | Abbreviated Journal | |
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| Abstract | Objective: In the context of the ongoing discussion about keeping horses in individual stable boxes vs. in herds the lack of relaxation of the horse as a flight animal is an argument often put forward against individual housing. The long-term objective of our investigations is to determine the sleep phases in various housing systems in order to find a substantiated answer to that issue. For that purpose, the sleep waves measured by EEG have to be defined beforehand and allocated to the individual stages of sleep. The experiments described here are intended to support this effort. The objective is to establish a method which by means of a portable polysomnograph allows to capture the sleeping behaviour of horses for the purpose of defining the individual stages of sleep. It was investigated which stages of sleep horses undergo, and to what extent they may be comparable to those of humans. Animals/materials/methods: Given the high technical effort involved, somnographic examination of large animals has so far been difficult and mostly required the animals to be sedated. Meanwhile, however, instruments such as the Somnoscreen by Somnomedics have become available. This is a completely portable polysomnograph with up to 28 channels and wireless online signal transmission and synchronous video transmission to a PC. Using this instrument, the sleep profile of 5 Icelandic ponies and 10 horses (different race) aged 5-10 years was recorded and evaluated for 4 or 5 nights per horse. The following parameters were assessed: EEG (electroencephalogram), EOG (electrooculogram), EMG (electromyogram), ECG (electrocardiogram), thoracic and abdominal breathing motions as well as identification of the body posture. Synchronous video recordings were made. EEG recordings were obtained through gold-coated disk electrodes with long flexible cables, applied and secured to the scalp. Results: As with humans, various stages of sleep can also be defined for horses using the above methods of recording. The waking condition is characterised by alpha waves, which just like in humans are within a range of 8-12 Hz. Typical REM phases as in humans were also detected, although not only when stretched completely on their side, as has hitherto always been described, but also when lying on their chest. Phases of deep sleep (stage 4) can also be measured, with the animals mostly in a standing position. The multi-stage human sleeping pattern, which is made up of 4-6 repeat phases of sleep (waking stage eyes open – waking stage eyes closed – REM phase – stage 1 – stage 2 – stage 3 – stage 4 – return to REM phase etc.) was found to be similar in horses in individual sequences. However, the sleep phases are shorter and more frequently interrupted by waking phases. Conclusions: Horses are flight animals, which is why they have to be “on eye” in every situation so as to be able to flee in the face of danger. In a natural herd lying positions are only assumed if one or more members watch over the herd. In some publications the REM phase is treated as equivalent to the deep sleep phase. Although the REM phase is a phase of total muscle relaxation it is at the same time the dream phase and due to the high frequencies and the low amplitudes in the EOG resembles Stage I. This means that the sleeping horse can be awakened very quickly from this REM phase so as to be able to react to any dangerous situation. It therefore makes sense for the horses to assume a lying position during REM phases as the muscles are relaxed, yet a waking condition can be reached very quickly. A standing position seems to be preferred during deep sleep phases, where waking takes rather long, so that at least the position will not have to be changed. Whether the sleeping behaviour changes depending on age and race has yet to be investigated. |
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| Address | Institute of Animal Welfare, Ethology and Animal Hygiene, Ludwig-Maximilians University, Schwere-Reiter-Str. 9, 80637 Munich/Germany, woehr@lmu.de | ||||
| Corporate Author | Wöhr, A.C. | Thesis | |||
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| Area | Expedition | Conference | IESM 2008 | ||
| Notes | Talk 15 min IESM 2008 | Approved | yes | ||
| Call Number | Equine Behaviour @ team @ | Serial | 4498 | ||
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| Author |
Wüst G, | ||||
| Title | Geburt und perinatales Verhalten beim Steppenzebra | Type | Journal Article | ||
| Year | 1976 | Publication | Zoologische Garten | Abbreviated Journal | Zool. Garten. |
| Volume | N.F. Jena 46 | Issue | Pages | 305-352 | |
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| Notes | from Professor Hans Klingels Equine Reference List | Approved | no | ||
| Call Number | Serial | 1725 | |||
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| Author |
Wyss, C. | ||||
| Title | Does housing in a „social box“ change faecal cortisol metabolites concentration in stallions? | Type | Conference Article | ||
| Year | 2015 | Publication | Proceedings of the 3. International Equine Science Meeting | Abbreviated Journal | Proc. 3. Int. Equine. Sci. Mtg |
| Volume | Issue | Pages | |||
| Keywords | housing system, stallions, social interaction, stress, faecal cortisol metabolites | ||||
| Abstract | In order to improve the housing conditions of stallions in individual boxes by offering a possibility to have more social contact, the Swiss national stud farm tested a new box system for horses, allowing increased physical contact with the neighbouring stallion. The aim of this part of the study was to investigate whether this type of housing system (named “social box”) potentially induces a change in stress reactions in stallions compared to conventional boxes. Therefore faecal cortisol metabolite (FCM) concentration was measured as a non-invasive parameter to assess endocrine responses related to this new environment. Four groups each consisting of eight adult Freiberger breeding stallions were included in the test design. Every stallion spent three weeks in a conventional box and in a social box respectively (cross-over design). The conventional box consisted of a separation wall with a lower opaque part and an upper part with vertical barriers (5 cm between barriers), allowing visual and olfactory contact but strongly limiting tactile contact. The separating wall of the social box consisted of two lateral sections, one part being opaque to the ceiling and the second part consisting of vertical barriers (30 cm between barriers), allowing the horse to have physical contact with its neighbour or to avoid it. In horses, FCM concentration reflects an average level of circulating cortisol over a period of approximatively 24h. Faecal samples were collected the day following integration in social / conventional boxes, reflecting the potential stress induced by increased social interactions during the integration. In order to asses potential chronical stress, faeces samples were also collected in week one, two and three after the integration into the social / conventional box (in total: 4 samples per horse and housing system). The samples were immediately stored at -20°C until they were analysed. The samples were not analysed in the laboratory until the end of the experiment, therefore the duration of conservation in the freezer varied from 40 to 429 days. A considerable percentage of data from groups 1 and 2 was below the detection limit (<0.8 ng/g) (Tab. 1). Thus the statistical analysis was conducted with the FCM concentration from groups 3 and 4 (n horses = 16) which contained no values below the detection limit. Tab. 1: Details about FCM values and storage time for the 4 groups of stallions Group Storage duration [d] Proportion of data below the detection limit (<0.8 ng/g) Mean [ng/g] Median [ng/g] Group 1 384-429 55.6 % 2.2 0 Group 2 315-360 25.5 % 5.8 6.3 Group 3 41-79 0.0 % 8.7 8.0 Group 4 40-85 0.0 % 5.8 5.4 Despite the impressive social interactions observed between the stallions directly after being introduced into the social boxes, we did not find any differences in FCM concentration between the stallions being introduced into the conventional box and the social box on the day of integration (social box: n samples = 16, mean±SD: 6.9±4.7 ng/g; conventional box: n samples = 16, mean±SD: 9.0±11.2 ng/g; Wilcoxon signed rank test V = 70, p = 0.94). Overall the samples taken during integration and in week one, two and three did not show evidence of changes in FCM concentration in either housing system over a longer period of time (social box: n samples = 64, mean±SD: 7.9±6.2 ng/g; conventional box: n samples = 64, mean±SD: 6.6±3.4 ng/g; Linear mixed model (LMM), p = 0.56). Our results suggest that the possibility of having physical contact with a conspecific does not induce changes in FCM concentration in breeding stallions. The considerable percentage of values below the detection limit in groups 1 and 2 seemed to correlate with the increasing duration of storage before analysis. During the IESM Network Meeting 2015, we would like to discuss possible methodological issues and the possibilities to correctly integrate these low values in the statistical analysis. |
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| Corporate Author | Wyss, C. | Thesis | |||
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| Notes | Approved | no | |||
| Call Number | Equine Behaviour @ team @ | Serial | 5869 | ||
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| Author |
Würbel, H. | ||||
| Title | The relationship between social structure and mating system in donkeys & Mating strategies of male donkeys in a promiscuous mating system"l structure and mating system in donkeys & | Type | Manuscript | ||
| Year | 1990 | Publication | Abbreviated Journal | ||
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| Corporate Author | Thesis | Diploma thesis | |||
| Publisher | Place of Publication | Faculty of Natural Sciences, University of Berne, Switzerland | Editor | ||
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| Notes | from Professor Hans Klingels Equine Reference List | Approved | yes | ||
| Call Number | Serial | 1724 | |||
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