| Records |
| Author |
Murphy, J.; Arkins, S. |
| Title |
Synthesizing what we know of equine learning behaviour |
Type  |
Journal Article |
| Year |
2007 |
Publication |
Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
| Volume |
76 |
Issue |
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Pages |
57-60 |
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Approved |
no |
| Call Number |
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Serial |
876 |
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| Author |
Bohnet, W. |
| Title |
Expressive behaviour to assess the emotional states in horses |
Type |
Journal Article |
| Year |
2007 |
Publication |
DTW. Deutsche tierarztliche Wochenschrift |
Abbreviated Journal |
Dtsch Tierarztl Wochenschr |
| Volume |
114 |
Issue |
3 |
Pages |
91-97 |
| Keywords |
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| Abstract |
The emotional states such as feelings and emotions are not easy to assess by objective methods in animals as well as in humans. Beside measuring physiological variables an aid to assess the emotional states is the analysis of expressive behaviour of an individual respecting the relating context. Especially developed in mammals, which live in obligatory social i.e. in stable permanent social communities, are facial expression and gesture. Also horses display a differentiated expressive behaviour, which can be observed and analysed by humans. Moreover it could be demonstrated, that in situations of stress the display shown by horses (gesture, facial expression, posture) correlate with corresponding physiological reactions. Thus the expressive behaviour is suitable to assess the emotional states of horses depending on the situation. |
| Address |
Institut fur Tierschutz und Verhalten (Heim-, Labortiere und Pferde), Stiftung Tierarztliche Hochschule Hannover. bohnet@tierschutzzentrum.de |
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| Language |
German |
Summary Language |
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Original Title |
Ausdrucksverhalten zur Beurteilung von Befindlichkeiten bei Pferden |
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Edition |
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| ISSN |
0341-6593 |
ISBN |
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| Notes |
PMID:17419541 |
Approved |
yes |
| Call Number |
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Serial |
1769 |
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| Author |
Rapin, V.; Poncet, P.A.; Burger, D.; Mermod, C.; Richard, M.A. |
| Title |
[Measurement of the attention time in the horse] |
Type |
Journal Article |
| Year |
2007 |
Publication |
Schweizer Archiv fur Tierheilkunde |
Abbreviated Journal |
Schweiz Arch Tierheilkd |
| Volume |
149 |
Issue |
2 |
Pages |
77-83 |
| Keywords |
Age Factors; Animals; *Attention/physiology; Conditioning, Operant; Cross-Over Studies; Female; Horses/*physiology; Learning/*physiology; Male; Memory/*physiology; Time Factors |
| Abstract |
A study carried out on 49 horses showed that it is possible to measure the attention time by operant conditioning. After teaching horses an instrumental task using a signal, we were then able to test their attention time by asking them to prolong it increasingly while setting success and failure criteria. Two tests were performed 3 weeks apart. The 2nd test was feasible without relearning, a proof of memory, and was repeatable, a proof of consistency in the attention time. A significant difference was observed between the 3 age groups. Young horses often performed very well during the 1st test but their attention dropped in the 2nd test while older horses were more stable with respect to attention and even increased it slightly. The study shows that there are individual differences but it was not possible to prove a significant influence of breed, gender and paternal influence. Consequently, learning appears to be one of the most interesting approaches for evaluating the attention of horses and for observing their behaviour. |
| Address |
Laboratoire d'Ecoethologie, Universite de Neuchatel, Suisse. veronique.rapin@unine.ch |
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| Language |
French |
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Original Title |
Mesure de la duree d'attention chez le cheval |
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Edition |
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| ISSN |
0036-7281 |
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| Notes |
PMID:17343134 |
Approved |
no |
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Serial |
1770 |
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| Author |
Dugatkin LA. |
| Title |
Developmental environment, cultural transmission, and mate choice copying |
Type |
Journal Article |
| Year |
2007 |
Publication |
Naturwissenschaften |
Abbreviated Journal |
Naturwissenschaften |
| Volume |
94 |
Issue |
8 |
Pages |
651-656 |
| Keywords |
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| Abstract |
Using female mate choice copying as a rudimentary form of cultural transmission, this study provides evidence that social environment during development has a significant effect on the tendency to use culturally acquired information. Groups of newborn guppies (Poecilia reticulata) were raised for 35 days in 1 of 5 “developmental environments”. Groups of 15 newborns were raised in pools with no adults (treatment 1), both adult male and female guppies (treatments 2 and 3), only adult females (treatment 4) or only adult males (treatment 5). Mature females raised in treatments 1 and 2, but not treatments 3, 4, and 5, copied the mate choice of others. Treatments 1 and 2 correspond to social structures that guppies experience during their development in the wild. Newborn guppies swim together in shoals (analogous to treatment 1). As they mature, juveniles join schools of adult males and females (analogous to treatments 2). At no time during the normal developmental process are juveniles found with males, but only unreceptive females (as was the case for long periods in treatment 3) or in the presence of adults of only one sex (analogous to treatments 4 and 5). As such, normal developmental environments prime guppies for cultural transmission, while unnatural environments fail to do so. |
| Address |
Department of Biology, University of Louisville, Louisville, KY, 40292, USA, Lee.Dugatkin@louisville.edu |
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| Language |
English |
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Edition |
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| ISSN |
0028-1042 |
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| Notes |
PMID:17354007 |
Approved |
no |
| Call Number |
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Serial |
1819 |
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| Author |
Fischhoff, I.R.; Sundaresan, S.R.; Cordingley, J.; Larkin, H.M.; Sellier, M.-J.; Rubenstein, D.I. |
| Title |
Social relationships and reproductive state influence leadership roles in movements of plains zebra, Equus burchellii |
Type |
Journal Article |
| Year |
2007 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
| Volume |
73 |
Issue |
5 |
Pages |
825-831 |
| Keywords |
collective movements; drinking; equid; Equus burchellii; foraging; group dynamics; motivation; plains zebra; reproductive status; social relationships |
| Abstract |
In animal groups, collective movements emerge from individual interactions. Biologists seek to identify how characteristics of actors in these groups, and their relationships, influence the decision-making process. We distinguished two basic factors determining leadership in group choices: identity and state. We hypothesized that identity is more important to leadership in groups with stable relationships, which permit the development of habitual roles. In groups with fluid membership, particular individuals or subgroups are less likely to emerge as consistent leaders. Instead, we predicted that movement initiation in unstable groups depends on individual state at the time of the decision. We characterized how identity and reproductive state influenced leadership patterns in the movements of plains zebra. As in many other mammals, lactation in this species significantly alters water and energy needs. We investigated leadership in tightly knit harems and loosely bonded herds of multiple harems. Harem females tended to have habitual roles in the initiation of harem movement. In herds, however, we found no consistent leaders among harems. At both levels of social organization, lactation was a key determinant of leadership. In harems, lactating females were more likely to initiate movement than nonlactating females. In turn, harems containing lactating females were more likely to lead herd movements. Thus, we conclude that social relationships and reproductive state together shape the interactions that produce group behaviours. One benefit to lactating females of leading herd movements is preferential access to scarce water. Thus, leadership roles in group decisions may have fitness consequences. |
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no |
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Equine Behaviour @ team @ room B 3.092 |
Serial |
1825 |
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| Author |
Elhay, M.; Newbold, A.; Britton, A.; Turley, P.; Dowsett, K.; Walker, J. |
| Title |
Suppression of behavioural and physiological oestrus in the mare by vaccination against GnRH |
Type |
Journal Article |
| Year |
2007 |
Publication |
Australian Veterinary Journal |
Abbreviated Journal |
Aust Vet J |
| Volume |
85 |
Issue |
1-2 |
Pages |
39-45 |
| Keywords |
Animals; Antibodies/blood; Estradiol/blood; *Estrus/drug effects/physiology; Female; Gonadotropin-Releasing Hormone/*immunology/*pharmacology; Horses/*physiology; Luteinizing Hormone/blood; Ovulation/*drug effects/physiology; Progesterone/blood; Safety; Sexual Behavior, Animal/drug effects/physiology; Time Factors; Vaccination/veterinary |
| Abstract |
OBJECTIVE: To examine the immunogenicity of an equine immunocontraceptive vaccine and its efficacy in controlling hormone-related behaviour. DESIGN: A total of 24 mares at two sites in Australia were vaccinated with an immunocontraceptive vaccine comprising gonadotrophin releasing hormone (GnRH) conjugated to a carrier protein in immunostimulating complex as an adjuvant. Twelve animals at each site received a placebo of adjuvant alone and served as controls for seasonal oestrus, hormonal and behaviour patterns. Animals were observed for injection site reactions, ovarian and follicular activity, and serum levels of antibody, 17beta-oestradiol and progesterone in the weeks following vaccination. Mares were also examined for oestrous behaviour by teasing with a stallion. RESULTS: All mares responded to vaccination. Two weeks following the second vaccination there was a peak in antibody response to GnRH that declined gradually over the following weeks. Commensurate with the elevated anti-GnRH antibody there was a marked effect on ovarian activity with a reduction in 17beta-oestradiol and progesterone levels in the 24 vaccinated mares. There was also a reduction of oestrus-related behaviour as determined by a teaser stallion. This effect lasted a minimum of 3 months and correlated with the initial level of antibody response. CONCLUSION: Following a conventional two-dose immunisation regime this commercially available equine immunocontraceptive vaccine was effective at inhibiting oestrous behaviour for at least 3 months. This vaccine has a high level of safety since there were no significant local reactions nor were there any adverse systemic responses to vaccination. |
| Address |
Veterinary Medicines Research and Development, Pfizer Animal Health, Parkville, VIC 3052. Martin.Elhay@pfizer.com |
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Place of Publication |
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| Language |
English |
Summary Language |
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Edition |
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| ISSN |
0005-0423 |
ISBN |
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| Notes |
PMID:17300452 |
Approved |
no |
| Call Number |
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Serial |
1831 |
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| Author |
Reynhout, I.C.; Cornelissen, J.J.L.M.; Nolte, R.J.M. |
| Title |
Self-assembled architectures from biohybrid triblock copolymers |
Type |
Journal Article |
| Year |
2007 |
Publication |
Journal of the American Chemical Society |
Abbreviated Journal |
J Am Chem Soc |
| Volume |
129 |
Issue |
8 |
Pages |
2327-2332 |
| Keywords |
Horseradish Peroxidase/*chemistry; Micelles; Molecular Structure; Myoglobin/*chemistry; Particle Size; Polyethylene Glycols/*chemistry; Polymers/*chemical synthesis/chemistry; Polystyrenes/*chemistry; Surface-Active Agents/chemical synthesis/chemistry |
| Abstract |
The synthesis and self-assembly behavior of biohybrid ABC triblock copolymers consisting of a synthetic diblock, polystyrene-b-polyethylene glycol (PSm-b-PEG113), where m is varied, and a hemeprotein, myoglobin (Mb) or horse radish peroxidase (HRP), is described. The synthetic diblock copolymer is first functionalized with the heme cofactor and subsequently reconstituted with the apoprotein or the apoenzyme to yield the protein-containing ABC triblock copolymer. The obtained amphiphilic block copolymers self-assemble in aqueous solution into a large variety of aggregate structures. Depending on the protein and the polystyrene block length, micellar rods, vesicles, toroids, figure eight structures, octopus structures, and spheres with a lamellar surface are formed. |
| Address |
Institute for Molecules and Materials, Radboud University Nijmegen, Toernooiveld 1, 6525 ED Nijmegen, The Netherlands |
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English |
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Series Issue |
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Edition |
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| ISSN |
0002-7863 |
ISBN |
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Medium |
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Conference |
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| Notes |
PMID:17274615 |
Approved |
no |
| Call Number |
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Serial |
1832 |
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| Author |
Momozawa, Y.; Takeuchi, Y.; Tozaki, T.; Kikusui, T.; Hasegawa, T.; Raudsepp, T.; Chowdhary, B.P.; Kusunose, R.; Mori, Y. |
| Title |
SNP detection and radiation hybrid mapping in horses of nine candidate genes for temperament |
Type |
Journal Article |
| Year |
2007 |
Publication |
Animal Genetics |
Abbreviated Journal |
Anim Genet |
| Volume |
38 |
Issue |
1 |
Pages |
81-83 |
| Keywords |
Animals; *Behavior, Animal; Breeding; Horses/*genetics/physiology; *Polymorphism, Single Nucleotide; Radiation Hybrid Mapping; *Temperament |
| Abstract |
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| Address |
Laboratory of Veterinary Ethology, The University of Tokyo, Tokyo 113-8657, Japan |
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English |
Summary Language |
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Series Issue |
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Edition |
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| ISSN |
0268-9146 |
ISBN |
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| Notes |
PMID:17257195 |
Approved |
no |
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Serial |
1834 |
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| Author |
Meral, Y.; Cakiroglu, D.; Sancak, A.A.; Cyftcy, G.; Karabacak, A. |
| Title |
Relationships between serum serotonin and serum lipid levels, and aggression in horses |
Type |
Journal Article |
| Year |
2007 |
Publication |
DTW. Deutsche Tierarztliche Wochenschrift |
Abbreviated Journal |
Dtsch Tierarztl Wochenschr |
| Volume |
114 |
Issue |
1 |
Pages |
30-32 |
| Keywords |
*Aggression; Animals; Behavior, Animal/*physiology; Case-Control Studies; Female; Horses/*blood; Lipids/*blood; Male; Serotonin/*blood |
| Abstract |
Levels of serum serotonin and serum lipids--triglyceride, total cholesterol, low-density lipoprotein, high-density lipoprotein and very low-density lipoprotein, were determined in normal horses and horses diagnosed with aggression on the basis of a questionnaire survey. Blood serotonin levels in aggressive horses were found to be significantly lower than in non-aggressive horses (P < 0.01), but no association was found with respect to blood lipids. |
| Address |
Department of Internal Diseases, Faculty of Veterinary Medicine, University of Ondokuz Mayis, Samsun, Turkey. ymeral@omu.edu.t |
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English |
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0341-6593 |
ISBN |
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| Notes |
PMID:17252934 |
Approved |
no |
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Serial |
1835 |
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| Author |
Mills, D.S. |
| Title |
Comments about the importance of behaviour to equine clinicians |
Type |
Journal Article |
| Year |
2007 |
Publication |
Equine Veterinary Journal |
Abbreviated Journal |
Equine Vet J |
| Volume |
39 |
Issue |
1 |
Pages |
95 |
| Keywords |
Animals; *Behavior, Animal/physiology; *Clinical Competence; Horses/*physiology; Humans; Veterinarians/*psychology; Veterinary Medicine/*standards |
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English |
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Series Issue |
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Edition |
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| ISSN |
0425-1644 |
ISBN |
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Conference |
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| Notes |
PMID:17228604 |
Approved |
no |
| Call Number |
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Serial |
1839 |
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