| Records |
Author  |
Henry, S.; Richard-Yris, M.-A.; Hausberger, M. |
| Title |
Influence of various early human-foal interferences on subsequent human-foal relationship |
Type |
Journal Article |
| Year |
2006 |
Publication |
Developmental psychobiology |
Abbreviated Journal |
Dev Psychobiol |
| Volume |
48 |
Issue |
8 |
Pages |
712-718 |
| Keywords |
Animal Husbandry/methods; Animals; Animals, Newborn/*psychology; Animals, Suckling/*psychology; Behavior, Animal; Female; *Handling (Psychology); Horses/*psychology; Humans; Mothers/psychology; *Object Attachment; Species Specificity |
| Abstract |
Whereas the way animals perceive human contact has been particularly examined in pet animals, a small amount of investigations has been done in domestic ungulates. It was nevertheless assumed that, as pet animals, non-aggressive forms of tactile contact were as well rewarding or positive for these species, even though the features of intraspecific relationships in pet animals and domestic ungulates may be to some extent different.We test here the hypothesis that horses may not consider physical handling by humans as a positive event. When comparing different early human-foal interactions, we found that early exposure to a motionless human enhanced slightly foals reactions to humans whereas forced stroking or handling in early life did not improve later human-foal relation. Foals that were assisted during their first suckling (e.g., brought to the dam's teat) even tended to avoid human approach at 2 weeks, and physical contact at 1 month of age.We argue that interspecies differences may exist in how tactile stimulation is perceived. It may be important for the establishment of a bond that a young animal is active in the process and able, through its behavioral responses, to help define what is positive for it. This way of investigation may have important general implications in how we consider the development of social relations, both within and between species. |
| Address |
UMR CNRS 6552, Ethologie-Evolution-Ecologie, Universite de Rennes 1, Avenue du General Leclerc, Campus de Beaulieu, F-35042 Rennes Cedex, France. severine.henry@univ-rennes1.fr |
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English |
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Edition |
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| ISSN |
0012-1630 |
ISBN |
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Conference |
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| Notes |
PMID:17111402 |
Approved |
no |
| Call Number |
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Serial |
1781 |
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| Author |
Herholz, C.P.; Gerber, V.; Tschudi, P.; Straub, R.; Imhof, A.; Busato, A. |
| Title |
Use of volumetric capnography to identify pulmonary dysfunction in horses with and without clinically apparent recurrent airway obstruction |
Type |
Journal Article |
| Year |
2003 |
Publication |
American Journal of Veterinary Research |
Abbreviated Journal |
Am J Vet Res |
| Volume |
64 |
Issue |
3 |
Pages |
338-345 |
| Keywords |
Aging; Airway Obstruction/*complications/diagnosis/*veterinary; Animals; Capnography/*methods/*veterinary; Female; Horse Diseases/*diagnosis; Horses; Lung Diseases/complications/*diagnosis/*veterinary; Male; Predictive Value of Tests |
| Abstract |
OBJECTIVE: To investigate whether volumetric capnography indices could be used to differentiate between horses without recurrent airway obstruction (RAO) and horses with RAO that were in clinical remission or that had clinically apparent RAO. ANIMALS: 70 adult Swiss Warmblood horses (20 used for pleasure riding and 50 used for dressage or show jumping). PROCEDURE: Horses were allocated to 4 groups on the basis of history, clinical signs, results of endoscopy, and cytologic findings (group 1, 21 healthy horses; group 2, 22 horses with RAO that were in remission; group 3, 16 horses with mild RAO; group 4, 11 horses with exacerbated RAO). Expiratory volume and CO2 curves were recorded by use of a computerized ultrasonic spirometer. Volumetric capnograms were plotted, and derived indices were calculated. RESULTS: Dead-space volume (VD) was calculated by use of the Bohr equation (VD(Bohr)) and for physiologic VD (VD(phys)). Ratios for VD(Bohr) to expiratory tidal volume (VT) and VD(phys) to V(T) as well as an index of effective CO2 elimination were significantly different among groups of horses. Age and use of the horses also significantly affected volumetric capnography indices. CONCLUSIONS AND CLINICAL RELEVANCE: Ratios of VD(Bohr) to VT and VD(phys) to VT as well as an index of effective CO2 elimination were sufficiently sensitive measures to distinguish between healthy horses and horses with RAO in remission. To optimize the ability of volumetric capnography indices to differentiate among horses in heterogeneous populations, it is important to account for effects of age and specific use of the horses. |
| Address |
Department of Equine Internal Medicine, Faculty of Veterinary Medicine, University of Berne, Langgasstr 124, CH-3012 Berne, Switzerland |
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English |
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0002-9645 |
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| Notes |
PMID:12661875 |
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no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
3724 |
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| Author |
Hernandez, J.; Hawkins, D.L. |
| Title |
Training failure among yearling horses |
Type |
Journal Article |
| Year |
2001 |
Publication |
American Journal of Veterinary Research |
Abbreviated Journal |
Am J Vet Res |
| Volume |
62 |
Issue |
9 |
Pages |
1418-1422 |
| Keywords |
Animals; Female; Florida; Horses/*physiology; Lameness, Animal/*economics; Male; Physical Conditioning, Animal/adverse effects/economics; Respiratory Tract Diseases/economics/*veterinary; Statistics, Nonparametric |
| Abstract |
OBJECTIVE: To compare financial returns between pinhooked yearling horses (ie, bought and trained for approximately 5 months with the goal of selling the horse at “2-year-olds in training” sales) that had mild or severe training failure and horses that had planned versus nonplanned training failure. ANIMALS: 40 Thoroughbred pinhooked yearling horses. PROCEDURE: During the period from September 1998 through and April 1999, 20 horses had mild training failure (1 to 11 days lost), and 20 horses had severe training failure (13 to 108 days lost). Horses were assigned to these 2 groups on the basis of frequency distribution (median) of days lost during training. Horses were also categorized on the basis of type of training failure (planned vs nonplanned training failure). The outcome of primary interest was financial return. Median financial returns were compared among groups by use of the Mann-Whitney U test. RESULTS: Median financial returns for horses that had severe training failure ($1,000) were significantly different, compared with horses that had mild training failure ($24,000). Analysis of results also indicated that median returns were significantly different among horses that had planned training failure (-$2,000; eg, horses with radiographic abnormalities detected during routine prepurchase examinations that required surgical treatment, resulting in days lost during training), compared with horses that did not ($10,000). CONCLUSIONS AND CLINICAL RELEVANCE: Training failure has an economic impact on revenues in pinhooked yearling horses. Lameness, planned training failure, respiratory disease, and ringworm were common and important causes of training failure. |
| Address |
Department of Large Animal Clinical Sciences, College of Veterinary Medicine, University of Florida, Gainesville 32610-0136, USA |
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English |
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Edition |
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0002-9645 |
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| Notes |
PMID:11560271 |
Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
4051 |
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| Author |
Herrmann, E.; Melis, A.P.; Tomasello, M. |
| Title |
Apes' use of iconic cues in the object-choice task |
Type |
Journal Article |
| Year |
2006 |
Publication |
Animal cognition |
Abbreviated Journal |
Anim. Cogn. |
| Volume |
9 |
Issue |
2 |
Pages |
118-130 |
| Keywords |
Animal Communication; Animals; *Appetitive Behavior; *Choice Behavior; *Cues; Female; Gorilla gorilla; Male; *Nonverbal Communication; Pan paniscus; Pan troglodytes; Pongo pygmaeus; *Problem Solving; Space Perception; Species Specificity; Statistics, Nonparametric |
| Abstract |
In previous studies great apes have shown little ability to locate hidden food using a physical marker placed by a human directly on the target location. In this study, we hypothesized that the perceptual similarity between an iconic cue and the hidden reward (baited container) would help apes to infer the location of the food. In the first two experiments, we found that if an iconic cue is given in addition to a spatial/indexical cue – e.g., picture or replica of a banana placed on the target location – apes (chimpanzees, bonobos, orangutans, gorillas) as a group performed above chance. However, we also found in two further experiments that when iconic cues were given on their own without spatial/indexical information (iconic cue held up by human with no diagnostic spatial/indexical information), the apes were back to chance performance. Our overall conclusion is that although iconic information helps apes in the process of searching hidden food, the poor performance found in the last two experiments is due to apes' lack of understanding of the informative (cooperative) communicative intention of the experimenter. |
| Address |
Max Planck Institute for Evolutionary Anthropology, Deutscher Platz 6, 04103 Leipzig, Germany. eherrman@eva.mpg.de |
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English |
Summary Language |
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Original Title |
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Edition |
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| ISSN |
1435-9448 |
ISBN |
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| Notes |
PMID:16395566 |
Approved |
no |
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Serial |
14 |
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| Author |
Heschl, A.; Burkart, J. |
| Title |
A new mark test for mirror self-recognition in non-human primates |
Type |
Journal Article |
| Year |
2006 |
Publication |
Primates |
Abbreviated Journal |
Primates |
| Volume |
47 |
Issue |
3 |
Pages |
187-198 |
| Keywords |
Animals; *Behavior, Animal; Callithrix/*physiology; Cognition/*physiology; Discrimination (Psychology)/physiology; Female; Male; Photic Stimulation; *Self Concept |
| Abstract |
For 30 years Gallup's (Science 167:86-87, 1970) mark test, which consists of confronting a mirror-experienced test animal with its own previously altered mirror image, usually a color mark on forehead, eyebrow or ear, has delivered valuable results about the distribution of visual self-recognition in non-human primates. Chimpanzees, bonobos, orangutans and, less frequently, gorillas can learn to correctly understand the reflection of their body in a mirror. However, the standard version of the mark test is good only for positively proving the existence of self-recognition. Conclusive statements about the lack of self-recognition are more difficult because of the methodological constraints of the test. This situation has led to a persistent controversy about the power of Gallup's original technique. We devised a new variant of the test which permits more unequivocal decisions about both the presence and absence of self-recognition. This new procedure was tested with marmoset monkeys (Callithrix jacchus), following extensive training with mirror-related tasks to facilitate performance in the standard mark test. The results show that a slightly altered mark test with a new marking substance (chocolate cream) can help to reliably discriminate between true negative results, indicating a real lack of ability to recognize oneself in a mirror, from false negative results that are due to methodological particularities of the standard test. Finally, an evolutionary hypothesis is put forward as to why many primates can use a mirror instrumentally – i.e. know how to use it for grasping at hidden objects – while failing in the decisive mark test. |
| Address |
Konrad Lorenz Institute for Evolution and Cognition Research, Adolf Lorenz Gasse 2, 3422, Altenberg, Austria. adolf.heschl@uni-graz.at |
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English |
Summary Language |
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Edition |
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| ISSN |
0032-8332 |
ISBN |
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| Notes |
PMID:16432640 |
Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
2810 |
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| Author |
Hill, S.E.; Ryan, M.J. |
| Title |
The role of model female quality in the mate choice copying behaviour of sailfin mollies |
Type |
Journal Article |
| Year |
2006 |
Publication |
Biology letters |
Abbreviated Journal |
Biol Lett |
| Volume |
2 |
Issue |
2 |
Pages |
203-205 |
| Keywords |
Animals; *Choice Behavior; Female; Male; *Mating Preference, Animal; Poecilia/*physiology |
| Abstract |
Female mate choice copying is a socially mediated mate choice behaviour, in which a male's attractiveness to females increases if he was previously chosen by another female as a mate. Although copying has been demonstrated in numerous species, little is known about the specific benefits it confers to copying females. Here we demonstrate that the mate choice behaviour of female sailfin mollies (Poecilia latipinna) is influenced by the phenotypic quality of model females with whom males are observed consorting. Test females choosing between two males of similar body length were found to significantly increase time spent with previously non-preferred males after having observed them with a relatively high-quality female. Conversely, females were found to significantly decrease time spent with previously preferred males after having observed them with a relatively low-quality female. Female mate choice copying might be maintained by selection based on the heuristic value it provides females choosing between males whose quality differences are not easily distinguishable. |
| Address |
University of Texas at Austin, Department of Psychology, 1 University Station A8000, Austin, TX 78712, USA. sehill@mail.utexas.edu |
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English |
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Series Issue |
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Edition |
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| ISSN |
1744-9561 |
ISBN |
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Conference |
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| Notes |
PMID:17148362 |
Approved |
no |
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Serial |
1820 |
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| Author |
Hillidge, C.J.; Lees, P. |
| Title |
Cardiac output in the conscious and anaesthetised horse |
Type |
Journal Article |
| Year |
1975 |
Publication |
Equine veterinary journal |
Abbreviated Journal |
Equine Vet J |
| Volume |
7 |
Issue |
1 |
Pages |
16-21 |
| Keywords |
Anesthesia, Inhalation/*veterinary; Animals; Carbon Dioxide/blood; *Cardiac Output/veterinary; *Consciousness; Electrocardiography/veterinary; Ether, Ethyl; Female; Halothane; Heart Rate; Heart Ventricles/physiology; Horses/*physiology; Hydrogen-Ion Concentration; Male; Oxygen/blood; Posture |
| Abstract |
Cardiac output in the horse was measured before and at predetermined times during 2-hour periods of thiopentone-halothane and thiopentone-diethyl ether anaesthesia. Left ventricular stroke volume was decreased to a similar extent during anaesthesia with each volatile agent, but a greater reduction in cardiac output occurred during halothane anaesthesia. This finding reflected the differing effects of halothane and ether on heart rate, a slight bradycardia occurring with the former agent while ether produced a small degree of tachycardia. The latter effect was attributed to enhanced sympathoadrenal activity. Changes in cardiac output and stroke volume were considered in relation to other factors, including arterial blood pH and tensions of oxygen and carbon dioxide. Positive correlations between some of these variables and cardiac function were established. With both volatile agents the reductions in stroke volume and cardiac output were related to the duration of anaesthesia, being greatest during the early stages. Possible reasons for the tendency of stroke volume and cardiac output to return towards control levels are discussed. |
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English |
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Edition |
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| ISSN |
0425-1644 |
ISBN |
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| Notes |
PMID:234842 |
Approved |
no |
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refbase @ user @ |
Serial |
102 |
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| Author |
Hinchcliff, K.W.; Kohn, C.W.; Geor, R.; McCutcheon, L.J.; Foreman, J.; Andrews, F.M.; Allen, A.K.; White, S.L.; Williamson, L.H.; Maykuth, P.L. |
| Title |
Acid:base and serum biochemistry changes in horses competing at a modified 1 Star 3-day-event |
Type |
Journal Article |
| Year |
1995 |
Publication |
Equine Veterinary Journal. Supplement |
Abbreviated Journal |
Equine Vet J Suppl |
| Volume |
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Issue |
20 |
Pages |
105-110 |
| Keywords |
*Acid-Base Equilibrium; Animals; Blood Proteins/analysis; Body Water/metabolism; Carbon Dioxide/blood; Electrolytes/*blood; Female; Hematocrit/veterinary; Homeostasis; Horses/*blood/physiology; Hydrogen-Ion Concentration; Male; Physical Conditioning, Animal/*physiology |
| Abstract |
We examined the effects of participation in each of 3 modifications of Day 2 of a 3-day-event on blood and serum variables indicative of hydration, acid:base status and electrolyte homeostasis of horses. Three groups of horses – 8 European (E) horses and 2 groups each of 9 North American horses performed identical Days 1 (dressage) and 3 (stadium jumping) of a 3-day-event. E horses and one group of the North American horses (TD) performed modifications of Day 2 of a 1 Star 3-day-event and the other group of North American horses (HT) performed a Horse Trial on Day 2. Jugular venous blood was collected from each horse on the morning of Day 2 before any warm-up activity, between 4 min 55 s and 5 min 15 s after Phase D and the following morning. Eight E horses, 5 TD horses and 8 HT horses completed the trials. There were few significant differences in acid:base or serum biochemistry variables detected among horses performing either 2 variations of the Speed and Endurance day of a 1 Star 3-day-event, or a conventional Horse Trial. Failure to detect differences among groups may have been related to the low statistical power associated with the small number of horses, especially in the TD group, variation in quality of horses among groups and the different times of the day at which the E horses competed. Differences detected among time points were usually common to all groups and demonstrated metabolic acidosis with a compensatory respiratory alkalosis, a reduction in total body water and cation content, and hypocalcaemia. Importantly, horses of all groups did not replenish cation, chloride, and calcium deficits after 14-18 h of recovery. |
| Address |
Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Ohio State University, Columbus 43210-1089, USA |
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English |
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| Notes |
PMID:8933092 |
Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
3740 |
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| Author |
Hinde, R.A. |
| Title |
Analyzing the roles of the partners in a behavioral interaction--mother-infant relations in rhesus macaques |
Type |
Journal Article |
| Year |
1969 |
Publication |
Annals of the New York Academy of Sciences |
Abbreviated Journal |
Ann N Y Acad Sci |
| Volume |
159 |
Issue |
3 |
Pages |
651-667 |
| Keywords |
Age Factors; Animals; *Behavior, Animal; Female; Group Processes; Haplorhini; Leadership; Maternal Deprivation; *Mother-Child Relations; *Role; Time Factors |
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English |
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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 |
0077-8923 |
ISBN |
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| Notes |
PMID:4981882 |
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no |
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Serial |
2054 |
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Hinrichs, K.; Watson, E.D.; Kenney, R.M. |
| Title |
Granulosa cell tumor in a mare with a functional contralateral ovary |
Type |
Journal Article |
| Year |
1990 |
Publication |
Journal of the American Veterinary Medical Association |
Abbreviated Journal |
J Am Vet Med Assoc |
| Volume |
197 |
Issue |
8 |
Pages |
1037-1038 |
| Keywords |
Animals; Corpus Luteum/*physiopathology; Female; Granulosa Cell Tumor/pathology/physiopathology/*veterinary; Horse Diseases/*pathology/physiopathology; Horses; Ovarian Neoplasms/pathology/*veterinary; Ovary/*pathology/physiopathology |
| Abstract |
A functional corpus luteum was found in the ovary contralateral to the ovary with a granulosa cell tumor in a 24-year-old Standardbred mare. The mare was ovariectomized because she was to be used as a jump mare for collection of semen from stallions. The blood concentration of progesterone was 2.2 ng/ml, and the luteal tissue progesterone concentration was 6.3 micrograms/mg. Atrophy of the contralateral ovary is one of the major signs used in diagnosis of granulosa cell tumor; however, our findings indicate that the ovary contralateral to a granulosa cell tumor is not invariably nonfunctional. |
| Address |
Department of Medicine, School of Veterinary Medicine, Tufts University, North Grafton, MA 01536 |
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English |
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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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0003-1488 |
ISBN |
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| Notes |
PMID:2243036 |
Approved |
no |
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Equine Behaviour @ team @ |
Serial |
3802 |
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