| Records |
| Author |
Bachmann, I.; Audige, L.; Stauffacher, M. |
| Title |
Risk factors associated with behavioural disorders of crib-biting, weaving and box-walking in Swiss horses |
Type |
Journal Article |
| Year |
2003 |
Publication |
Equine Veterinary Journal |
Abbreviated Journal |
Equine Vet J |
| Volume |
35 |
Issue |
2 |
Pages |
158-163 |
| Keywords |
Animal Husbandry/*methods; Animals; *Behavior, Animal; Confounding Factors (Epidemiology); Data Collection; Female; Horse Diseases/epidemiology/*etiology/prevention & control; Horses; *Housing, Animal; Male; Mental Disorders/epidemiology/etiology/prevention & control/*veterinary; Prevalence; Regression Analysis; Risk Factors; *Stereotyped Behavior; Switzerland/epidemiology |
| Abstract |
REASONS FOR PERFORMING STUDY: Studies on the prevalence of behavioural disorders in horses and on associated risk factors have revealed inconsistent results. There are many studies on the neuropharmacological, surgical or mechanical therapy of stereotypies, but little is known about their causation. OBJECTIVES: To explore risk factors associated with the occurrence of behavioural disorders in horses. METHODS: A sample of horse owners, selected randomly and representative for Switzerland, was contacted in a postal survey. Answers were provided for 622 stables (response rate 35.2%). Individual data of 2,341 horses were examined with path analysis (multivariable linear and logistic regression), and adjustment made for possible confounding effects due to age and breed. RESULTS: Out of 60 possible risk factors, 11 were associated with the outcome at the univariable level (null-hypothesis path model) and 3 factors remained after the backward logistic regression procedure. Mature Warmbloods and Thoroughbreds, assessed by the owners to be reactive, fed 4 times a day and without daily pasture, had increased odds of displaying crib-biting, weaving and box-walking. Furthermore, indirect associations of 5 factors with the outcome were identified. CONCLUSIONS: The final logistic regression model of risk factors leads to the hypotheses that causal prevention of stereotypic behaviours should be based upon housing and management conditions which allow tactile contact with other horses (e.g. mutual grooming), daily free movement (paddock or pasture), as well as the provision of high amounts of roughage but of little or no concentrates. POTENTIAL CLINICAL RELEVANCE: It is one of the aims of population medicine to prevent the development of behavioural disorders. Further research is needed to test the concluding hypotheses in experimental studies or to verify them in the context of similar observational studies. |
| Address |
Institute of Animal Sciences, Swiss Federal Institute of Technology (ETH), LFW B55. 1, CH-8092 Zurich, Switzerland |
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English |
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| ISSN |
0425-1644 |
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Notes  |
PMID:12638792 |
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no |
| Call Number |
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Serial |
1907 |
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| Author |
Visser, E.K.; Van Reenen, C.G.; Rundgren, M.; Zetterqvist, M.; Morgan, K.; Blokhuis, H.J. |
| Title |
Responses of horses in behavioural tests correlate with temperament assessed by riders |
Type |
Journal Article |
| Year |
2003 |
Publication |
Equine Veterinary Journal |
Abbreviated Journal |
Equine Vet J |
| Volume |
35 |
Issue |
2 |
Pages |
176-183 |
| Keywords |
Adult; Animals; *Behavior, Animal/physiology; Data Interpretation, Statistical; Female; *Handling (Psychology); Heart Rate/*physiology; Horses/physiology/*psychology; Humans; Male; Personality; Temperament/*physiology |
| Abstract |
REASONS FOR PERFORMING STUDY: Behavioural tests as well as observers' ratings have been used to study horses' temperament. However, the relationship between the ratings and the responses in behavioural tests has not yet been studied in detail. OBJECTIVES: The aim of the present study was to examine this relationship between ratings and responses. METHODS: Eighteen mature Swedish Warmblood horses were subjected to 2 behavioural tests, one relating to novelty (novel object test) and one to handling (handling test). Subsequently, 16 of these horses were ridden by 16 equally experienced students, having no former experience with the horses. Immediately after each ride, the students scored the horse for 10 temperamental traits using a line rating method. RESULTS: It was shown that for each temperamental trait all 16 riders agreed on the ranking of the horses (0.212<W<0.505, P < 0.001). CONCLUSIONS: Correlations between behavioural and heart rate variables in the behavioural tests revealed that horses with a high level of locomotion or much restlessness behaviour exhibited high mean heart rate and low heart rate variability. In particular, heart rate variables in the behavioural tests were found to correlate with riders' rating scores. Furthermore, the underlying components of the handling test, retrieved with a principal component analysis (PCA) correlated with riders' rating scores while the underlying components of the novel object test did not. POTENTIAL CLINICAL RELEVANCE: It is concluded that it is possible for a large panel of assessors to agree upon a horse's temperament and that objective measures from behavioural tests correlate significantly with temperamental traits assessed by a panel of assessors. |
| Address |
Department of Equine Sciences, Faculty of Veterinary Medicine, Utrecht University, PO Box 80.163, NL-3508 TD Utrecht, The Netherlands |
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English |
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0425-1644 |
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| Notes |
PMID:12638795 |
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no |
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Serial |
1906 |
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| Author |
Neff, B.D.; Sherman, P.W. |
| Title |
Nestling recognition via direct cues by parental male bluegill sunfish ( Lepomis macrochirus) |
Type |
Journal Article |
| Year |
2003 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
| Volume |
6 |
Issue |
2 |
Pages |
87-92 |
| Keywords |
Animals; Animals, Wild; Male; Ovum; Parasites; Perception; *Perciformes; Pheromones; *Recognition (Psychology); Sexual Behavior, Animal; *Smell; Social Behavior |
| Abstract |
Parental care can be costly to a parent in terms of both time and energy invested in the young. In species with cuckoldry or brood parasitism not all of the young under a parent's care are necessarily offspring. In such cases, distinguishing between kin and non-kin, and investing only in the former (nepotism), can be advantageous. Bluegill sunfish ( Lepomis macrochirus) are characterized by paternal care and cuckoldry, and care-providing males appear to show nepotistic behaviours. Here, we investigated nestling recognition in bluegill, determining whether parental males can differentiate between young from their own nest (familiar and related) and young from non-neighbouring nests (unfamiliar and unrelated) using (1) visual and chemical cues, and (2) chemical cues only. In the first experiment, wild-caught parental males were presented with samples of eggs or fry (newly hatched eggs) collected from their own nest or a foreign nest and placed on opposite sides of an aquarium. The time these parental males spent associating with each sample, and their “pecking” behaviours (indicating cannibalism), were recorded. Parental males showed no preference between eggs from their own nest and eggs from a non-neighbouring nest, but they preferred to associate with fry from their own nest over foreign fry. There also was a positive relationship between male body size and the time spent associated with fry from their own nest. Parental males pecked at foreign fry more than 5 times as often as fry from their own nest, though this difference was not statistically significant. In the second experiment, fry that were collected from the nest of a wild-caught parental male or a non-neighbouring nest were placed in different containers and the water from each was dripped into opposite ends of an aquarium. The time the male spent on each side was recorded. In this case, parental males spent more time near the source of water conditioned by unrelated fry, but there was a positive relationship between male condition (fat reserves) and the time he spent near the source of water conditioned by fry from his own nest. Results confirm that chemicals cue nestling recognition by parental male bluegill. |
| Address |
Department of Biology, University of Western Ontario, London, ON N6A 5B7, Canada. bneff@uwo.ca |
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English |
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Edition |
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| ISSN |
1435-9448 |
ISBN |
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Expedition |
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Conference |
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| Notes |
PMID:12687419 |
Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
2577 |
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| Author |
Branchi, I.; Bichler, Z.; Berger-Sweeney, J.; Ricceri, L. |
| Title |
Animal models of mental retardation: from gene to cognitive function |
Type |
Journal Article |
| Year |
2003 |
Publication |
Neuroscience and Biobehavioral Reviews |
Abbreviated Journal |
Neurosci Biobehav Rev |
| Volume |
27 |
Issue |
1-2 |
Pages |
141-153 |
| Keywords |
Animals; Animals, Genetically Modified/growth & development; Behavior/physiology; Behavior, Animal; Brain/*growth & development; Cognition/*physiology; *Disease Models, Animal; Environment; Genes; Genetic Diseases, Inborn/physiopathology; Humans; Mental Retardation/classification/*genetics/*physiopathology |
| Abstract |
About 2-3% of all children are affected by mental retardation, and genetic conditions rank among the leading causes of mental retardation. Alterations in the information encoded by genes that regulate critical steps of brain development can disrupt the normal course of development, and have profound consequences on mental processes. Genetically modified mouse models have helped to elucidate the contribution of specific gene alterations and gene-environment interactions to the phenotype of several forms of mental retardation. Mouse models of several neurodevelopmental pathologies, such as Down and Rett syndromes and X-linked forms of mental retardation, have been developed. Because behavior is the ultimate output of brain, behavioral phenotyping of these models provides functional information that may not be detectable using molecular, cellular or histological evaluations. In particular, the study of ontogeny of behavior is recommended in mouse models of disorders having a developmental onset. Identifying the role of specific genes in neuropathologies provides a framework in which to understand key stages of human brain development, and provides a target for potential therapeutic intervention. |
| Address |
Section of Behavioural Pathophysiology, Laboratorio di Fisiopatologia di Organo e di Sistema, Istituto Superiore di Sanita, Viale Regina Elena 299, 00161 Roma, Italy. branchi@iss.it |
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English |
Summary Language |
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Series Issue |
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Edition |
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| ISSN |
0149-7634 |
ISBN |
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Medium |
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Expedition |
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Conference |
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| Notes |
PMID:12732230 |
Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
2805 |
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| Author |
Weaver, A.; de Waal, F.B.M. |
| Title |
The mother-offspring relationship as a template in social development: reconciliation in captive brown capuchins (Cebus apella) |
Type |
Journal Article |
| Year |
2003 |
Publication |
Journal of comparative psychology (Washington, D.C. : 1983) |
Abbreviated Journal |
J Comp Psychol |
| Volume |
117 |
Issue |
1 |
Pages |
101-110 |
| Keywords |
*Adaptation, Psychological; Animals; Behavior, Animal/*physiology; Cebus; Conflict (Psychology); Female; Male; *Maternal Behavior; Pilot Projects; *Social Behavior; Statistics, Nonparametric |
| Abstract |
Mother-offspring (MO) relationship quality was investigated to determine its influence on the development of reconciliation--affiliation between opponents shortly after a fight--because it influenceswhat distressed youngsters learn about calming down. Data were longitudinal and cross-sectional observational samples of 38 MO pairs of monkeys across 24 months. An MO relationship quality index (RQI) classified each pair as secure or insecure. Reconciliation emerged in infancy.Secure youngsters had an appeasing conciliatory style, and insecure youngsters had an agitated conciliatory style. Conclusions are that reconciliation develops from the attachment behavior system and MO RQI is related to the particular conciliatory style youngsters develop by affecting how aroused they are by conflict and the subsequent socializing they seek to calm down. |
| Address |
Living Links, Yerkes Primate Center and Psychology Department, Emory University, Atlanta, Georgia 30322, USA. dazzlingdolphins@cox.net |
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English |
Summary Language |
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Abbreviated Series Title |
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Series Issue |
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Edition |
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| ISSN |
0735-7036 |
ISBN |
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Medium |
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Expedition |
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Conference |
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| Notes |
PMID:12735370 |
Approved |
no |
| Call Number |
refbase @ user @ |
Serial |
180 |
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| Author |
Freire, R.; Wilkins, L.J.; Short, F.; Nicol, C.J. |
| Title |
Behaviour and welfare of individual laying hens in a non-cage system |
Type |
Journal Article |
| Year |
2003 |
Publication |
British poultry science |
Abbreviated Journal |
Br Poult Sci |
| Volume |
44 |
Issue |
1 |
Pages |
22-29 |
| Keywords |
*Animal Welfare; Animals; *Behavior, Animal; *Chickens; Female; Housing, Animal/*standards; Oviposition |
| Abstract |
1. A leg band containing a transponder was fitted to 80 birds in a perchery containing 1,000 birds. 2. The transponder emitted a unique identification number when a bird walked on one of 8 flat antennae on the floor. The recording apparatus was used to measure the amount of time that each of the tagged birds spent on the slatted and littered areas in a 6-week period. 3. Some birds spent long periods of time on the slats, possibly as a means of avoiding repeated attacks. Duration on the slats was greatest in birds with the worst (as opposed to better) feather scores of the head, back and tail regions. 4. Birds that spent long periods on the slats were lighter than other birds at both 39 weeks of age and 72 weeks of age and had greater back, head and tail feather damage, consistent with these birds being victims of pecking. 5. Tagged birds received a social avoidance test outside the perchery at 39 weeks of age, which suggested that birds retreated to the slats in response to pecks rather than just to close proximity to other birds. 6. The failure to find that duration on the slats was related to anatomical indicators of stress (liver, spleen and bursa of Fabricius) suggests that retreating to the slats following pecking attenuates physiological stress responses. 7. We conclude that the provision of areas where birds in a large group can avoid pecking may improve the welfare of a minority of victimised birds. |
| Address |
Department of Clinical Veterinary Science, University of Bristol, Langford, Bristol, England. rkfreire@hotmail.com |
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English |
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Series Issue |
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Edition |
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0007-1668 |
ISBN |
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Medium |
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Conference |
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| Notes |
PMID:12737221 |
Approved |
no |
| Call Number |
refbase @ user @ |
Serial |
82 |
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| Author |
Zentall, T.R.; Clement, T.S.; Weaver, J.E. |
| Title |
Symmetry training in pigeons can produce functional equivalences |
Type |
Journal Article |
| Year |
2003 |
Publication |
Psychonomic bulletin & review |
Abbreviated Journal |
Psychon Bull Rev |
| Volume |
10 |
Issue |
2 |
Pages |
387-391 |
| Keywords |
Animals; Association; Behavior, Animal; Columbidae; Conditioning (Psychology)/*physiology; Teaching/*methods; *Transfer (Psychology) |
| Abstract |
Functional stimulus equivalence has been demonstrated using a transfer of training design with matching-to-sample training in which two sample stimuli are associated with the same comparison stimulus (A-B, C-B; many-to-one matching). Equivalence is shown by training a new association (A-D) and demonstrating the presence of an emergent relation (C-D). In the present experiment, we show that symmetry training, in which a bidirectional association is trained between two stimuli (A-B, B-A, using successive stimulus presentations followed by reinforcement), can also produce functional equivalence using a transfer of training design (i.e., train B-C, test A-C). The results suggest that training pigeons in the substitutability of two stimuli may be sufficient to produce functional stimulus equivalence between them. The results also have implications for the development of an emergent transitive relation, because training on A-B and B-C relations results in the emergence of an untrained A-C relation, if B-A training also is provided. |
| Address |
Department of Psychology, University of Kentucky, Lexington, Kentucky 40506-0044, USA. zentall@pop.uky.edu |
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English |
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Series Title |
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Series Issue |
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Edition |
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| ISSN |
1069-9384 |
ISBN |
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| Notes |
PMID:12921414 |
Approved |
no |
| Call Number |
refbase @ user @ |
Serial |
235 |
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| Author |
Dugatkin, L.A.; Godin, J.G. |
| Title |
Reversal of female mate choice by copying in the guppy (Poecilia reticulata) |
Type |
Journal Article |
| Year |
1992 |
Publication |
Proceedings. Biological sciences / The Royal Society |
Abbreviated Journal |
Proc Biol Sci |
| Volume |
249 |
Issue |
1325 |
Pages |
179-184 |
| Keywords |
Acclimatization; Animals; *Choice Behavior; Female; Male; Poecilia; *Sexual Behavior, Animal |
| Abstract |
Ever since Fisher (1958) formalized models of sexual selection, female mate choice has been assumed to be a genetically determined trait. Females, however, may also use social cues to select mates. One such cue might be the mate choice of conspecifics. Here we report the first direct evidence that a female's preference for a particular male can in fact be reversed by social cues. In our experiments using the Trinidadian guppy (Poecilia reticulata), this reversal was mediated by mate-copying opportunities, such that a female (the 'focal' female) is given the opportunity to choose between two males, followed by a period in which she observes a second female (the 'model' female) displaying a preference for the male she herself did not prefer initially. When allowed to choose between the same males a second time, compared with control tests, a significant proportion of focal females reversed their mate choice and copied the preference of the model female. These results provide strong evidence for the role of non-genetic factors in sexual selection and underlie the need for new models of sexual selection that explicitly incorporate both genetic and cultural aspects of mate choice. |
| Address |
Department of Biology, Mount Allison University, Sackville, New Brunswick, Canada |
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English |
Summary Language |
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Original Title |
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Series Title |
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Abbreviated Series Title |
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Series Issue |
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Edition |
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| ISSN |
0962-8452 |
ISBN |
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Medium |
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Conference |
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| Notes |
PMID:1360679 |
Approved |
no |
| Call Number |
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Serial |
1824 |
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| Author |
Albentosa, M.J.; Kjaer, J.B.; Nicol, C.J. |
| Title |
Strain and age differences in behaviour, fear response and pecking tendency in laying hens |
Type |
Journal Article |
| Year |
2003 |
Publication |
British poultry science |
Abbreviated Journal |
Br Poult Sci |
| Volume |
44 |
Issue |
3 |
Pages |
333-344 |
| Keywords |
Age Factors; Aggression/*physiology; Animal Husbandry; Animals; *Behavior, Animal; Breeding; Chickens/genetics/*physiology; Fear/*physiology; Feathers/*injuries; Female; Housing, Animal; Population Density; Social Behavior |
| Abstract |
1. Behaviours associated with a high or low tendency to feather peck could be used as predictors of feather pecking behaviour in selective breeding programmes. This study investigated how strain and age at testing influenced responses in behavioural tests. 2. Four layer-type strains (ISA Brown, Columbian Blacktail, Ixworth and a high feather pecking (HP) and a low feather pecking (LP) line of White Leghorn) were reared in 6 same-strain/line pens of 8 birds from one day old. Birds in half the pens were given an open field test, a novel object test and a test with loose feather bundles between 4 and 12 weeks of age and a tonic immobility (TI) test at 13 weeks of age. All pens were tested with fixed feather bundles at 26 weeks, and undisturbed behaviour in the home pens was videoed at 1 and 27 weeks of age. Daily records of plumage damage were used as an indicator of feather pecking activity in the home pens. 3. Strain did not influence novel object test, open field test or loose feather test behaviour, although age effects in all three tests indicated a reduction in fearfulness and/or an increase in exploratory behaviour with increasing age. 4. White Leghorns showed longer TI durations than the other strains but less pecking at fixed feather bundles than ISA Browns and Columbian Blacktails. 5. There were few associations between behaviour in the 5 different tests, indicating that birds did not have overall behavioural traits that were consistent across different contexts. This suggests hens cannot easily be categorised into different behavioural 'types', based on their test responses and casts doubt on the usefulness of tests as predictors of feather pecking. |
| Address |
Centre for Behavioural Biology, Division of Farm Animal Science, University of Bristol, Langford, Bristol, England. MAlbentosa@lincoln.ac.uk |
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English |
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Edition |
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0007-1668 |
ISBN |
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| Notes |
PMID:13677322 |
Approved |
no |
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refbase @ user @ |
Serial |
80 |
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| Author |
Seyfarth, R.M.; Cheney, D.L. |
| Title |
Meaning and mind in monkeys |
Type |
Journal Article |
| Year |
1992 |
Publication |
Scientific American |
Abbreviated Journal |
Sci Am |
| Volume |
267 |
Issue |
6 |
Pages |
122-128 |
| Keywords |
Animals; Behavior, Animal; Female; *Haplorhini; Male; Speech; *Vocalization, Animal |
| Abstract |
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| Address |
University of Pennsylvania |
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Place of Publication |
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English |
Summary Language |
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Original Title |
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Series Title |
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Abbreviated Series Title |
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Edition |
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0036-8733 |
ISBN |
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| Notes |
PMID:1439710 |
Approved |
no |
| Call Number |
refbase @ user @ |
Serial |
701 |
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