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Author |
Tomasello, M.; Call, J |
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Books Received |
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Journal Article |
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Year |
2001 |
Publication |
Animal Behaviour |
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61 |
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1 |
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269-270 |
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The Alex Studies: Cognitive and Communicative Abilities of Grey
Parrots. By I. M. PEPPERBERG. Cambridge, Massachusetts:
Harvard University Press (1999). |
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0003-3472 |
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Equine Behaviour @ team @ |
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5446 |
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Watt, L. M.; McDonnell, S. M. |
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Demonstration of Concept Formation in the Horse. |
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Report |
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Year |
2001 |
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Equine Behavior Laboratory, University of Pennsylvania School of Veterinary Medicine, August 2001 Interim Report. |
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University of Pennsylvania |
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Philadephia |
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Equine Behaviour @ team @ |
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5449 |
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Author |
Gröschl, M.; Wagner, R.; Rauh, M.; Dörr, H.G. |
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Title |
Stability of salivary steroids: the influences of storage, food and dental care |
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Journal Article |
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Year |
2001 |
Publication |
Steroids |
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Volume |
66 |
Issue |
10 |
Pages |
737-741 |
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Keywords |
Cortisol; 17OH-Progesterone; Progesterone; Saliva; Stability |
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Abstract |
We studied influences of dental care, food and storage on the reproducibility of salivary steroid levels. Cortisol (F), 17OH-progesterone (17OHP) and Progesterone (P) were measured using adapted commercial radioimmunoassays. Saliva samples of healthy adults (n = 15; m:8; f:7) were collected directly before and after dental care, and directly before and after breakfast with various foodstuffs. A second experiment investigated stability of steroids under different storage conditions. Four series of identical saliva portions (I: Native saliva; II: Centrifuged saliva; III: Saliva with trifluor acetate (TFA); IV: Saliva with 0.5% NaN3) were stored at room temperature and at 4°C for up to three weeks. To demonstrate influences of repeated thawing and re-freezing of saliva on steroid values, saliva samples (n = 15) were divided into identical portions. These portions were frozen and re-thawed up to 5 times before measurement. Neither dental care nor intake of bread or milk effected the reproducibility of F, 170HP, and P. Steroid levels decreased significantly in the course of three weeks under different storage conditions (P < 0.001). This decrease was clinically relevant from the second week onward, with exception of NaN3 treated samples. After repeated freezing and re-thawing 17OHP and P decreased slightly (about 5%). Only F decreased significantly after the third thawing (P < 0.001). The results show the usefulness of standardized handling of saliva samples for improving reproducibility and reliability of salivary steroid measurements. |
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0039-128x |
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Equine Behaviour @ team @ |
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5561 |
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Author |
Ferenc S. |
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Computer-ssisted analysis of the developing brain motor system and coordinated locomotion in the foal |
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Year |
2001 |
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Ph.D. thesis |
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Equine Behaviour @ team @ |
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5673 |
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Author |
Gibbs, P.G.; Cohen, N.D. |
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Early management of race-bred weanlings and yearlings on farms |
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Journal Article |
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Year |
2001 |
Publication |
Journal of Equine Veterinary Science |
Abbreviated Journal |
J. Equine Vet. Sci. |
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21 |
Issue |
6 |
Pages |
279-283 |
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Equine, management, growth, nutrition, marketing |
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Abstract |
A total of 58 Thoroughbred and Quarter Horse farms
that managed 1,987 weanlings and yearlings responded to
a survey designed to better characterize early management
of racing prospects. Average age at weaning was 5.5 months
and over half of all farms kept almost three-fourths of all
weanlings to be placed in pre-race training. Variation in
feeding practices was evident and while well over half
of all farms provided balanced nutrient supply to young
horses, 20% to 40% likely fed unbalanced diets. An obvious
preference existed for semi-confinement in young horses
with plenty of free exercise. The majority of farms reported
that young prospects were fed and managed for a moderate
rate of growth. Forced exercise occurred to a much larger
extent with yearlings than weanlings and 40% of farms
described the footing as soft, but not deep. Response to the
prevalence of developmental orthopedic diseases appeared
somewhat guarded, and average injury rate was low on
farms that attributed much of injury to horses playing too
hard. Technological advancements such as photoperiod
manipulation in broodmares were widely used, while
valuable tools such as body condition scoring were utilized
to a lesser extent. |
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no |
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Call Number |
Equine Behaviour @ team @ |
Serial |
5758 |
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Author |
Tebbich, S.; Taborsky, M.; Fessl, B.; Blomqvist, D. |
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Title |
Do woodpecker finches acquire tool-use by social learning? |
Type |
Journal Article |
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Year |
2001 |
Publication |
Proceedings of the Royal Society of London B: Biological Sciences |
Abbreviated Journal |
Proc. Roy. Soc. Lond. B Biol. Sci. |
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Volume |
268 |
Issue |
1482 |
Pages |
2189-2193 |
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Tool–use is widespread among animals, but except in primates the development of this behaviour is poorly known. Here, we report on the first experimental study to our knowledge of the mechanisms underlying the acquisition of tool–use in a bird species. The woodpecker finch Cactospiza pallida, endemic to the Galápagos Islands, is a famous textbook example of tool–use in animals. This species uses modified twigs or cactus spines to pry arthropods out of tree holes. Using nestlings and adult birds from the field, we tested experimentally whether woodpecker finches learn tool–use socially. We show that social learning is not essential for the development of tool–use: all juveniles developed tool–use regardless of whether or not they had a tool–using model. However, we found that not all adult woodpecker finches used tools in our experiments. These non–tool–using individuals also did not learn this task by observing tool–using conspecifics. Our results suggest that tool–use behaviour depends on a very specific learning disposition that involves trial–and–error learning during a sensitive phase early in ontogeny. |
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Call Number |
Equine Behaviour @ team @ |
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5914 |
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Author |
Hau, J.; Andersson, E.; Carlsson, H.-E. |
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Title |
Development and validation of a sensitive ELISA for quantification of secretory IgA in rat saliva and faeces |
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Journal Article |
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Year |
2001 |
Publication |
Laboratory Animals |
Abbreviated Journal |
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Volume |
35 |
Issue |
4 |
Pages |
301-306 |
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Non-invasive measures of immunological markers are an attractive means of stress assessment in laboratory animals. Salivary IgA has been used successfully as a stress marker in the human, and several reports indicate the potential of secretory IgA as a non-invasive measure of stress in animals. The present paper describes the development of an ELISA using commercially available components for the quantification of rat IgA and validation of this assay for the quantification of rat secretory IgA in saliva and faeces. The concentration of IgA in rat saliva varied significantly between duplicate samples obtained from individual rats, and the viscosity and small total volume of rat saliva gave unsatisfactory results for IgA. Faecal IgA was present in high concentrations, and duplicate samples varied by only 2-3%. However, faecal IgA seemed less stable than IgA in other biological compartments, and this finding must be taken into consideration when using quantitative measurements of IgA as a marker of mucous humoral immune status. |
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10.1258/0023677011911822 |
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Equine Behaviour @ team @ |
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5851 |
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Author |
Munksgaard, L.; DePassillé, A.M.; Rushen, J.; Herskin, M.S.; Kristensen, A.M. |
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Title |
Dairy cows' fear of people: social learning, milk yield and behaviour at milking |
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Journal Article |
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Year |
2001 |
Publication |
Applied Animal Behaviour Science |
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Appl. Anim. Behav. Sci. |
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73 |
Issue |
1 |
Pages |
15-26 |
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We examined the effects of the presence of an unfamiliar, a gentle or an aversive handler during milking on behaviour and milk yield, and whether cows can learn to approach or avoid a handler by observing the neighbouring cow?s responses. In Experiment 1, Danish Friesian cows (n=16) were treated gently (offering hay and concentrates) by one handler and aversively (hit every 15s on the head with the hand) by another handler for six periods of 2min each. The two handlers wore different coloured overalls, and each cow received either gentle or aversive treatment in the first week and the other treatment the following week. All cows kept a longer distance to the aversive than to the gentle handler in a 1min test after treatment. Milk yield and residual milk did not differ when the aversive or the gentle handler was standing in front of the cow during milking, although the cows moved their legs and tail less when the aversive handler was present. When an unfamiliar person was standing in front of the cows during milking, behaviour and milk yield did not differ from control milkings. Cows and heifers (n=10) that had observed their neighbours receiving gentle treatment by one handler and aversive treatment from another handler did not differ in the distance they kept from these two handlers. In Experiment 2, cows (n=15) that had observed the neighbours receiving a gentle treatment (eight times for 2min) kept a shorter distance to that handler after treatment of their neighbours, and the distance they kept was correlated with the distance kept by the neighbouring cows. This suggests that responses of observer cows may be affected by the responses of the cows being treated. The cows rapidly learned to avoid an aversive handler, but although the cows showed clear avoidance response to the aversive handler there was no effect on milk yield when the aversive handler was present at milking. |
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Elsevier |
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0168-1591 |
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doi: 10.1016/S0168-1591(01)00119-8 |
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Equine Behaviour @ team @ |
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6039 |
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Author |
Virga, V.; Houpt, K.A. |
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Title |
Prevalence of placentophagia in horses |
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Journal Article |
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Year |
2001 |
Publication |
Equine veterinary journal |
Abbreviated Journal |
Equine Vet J |
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Volume |
33 |
Issue |
2 |
Pages |
208-210 |
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Keywords |
Animals; *Behavior, Animal; Colic/epidemiology/*veterinary; Exploratory Behavior; *Feeding Behavior; Female; Horse Diseases/*epidemiology; Horses; Incidence; New York/epidemiology; *Placenta; Postpartum Period; Pregnancy; Prevalence; Questionnaires |
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Animal Behavior Clinic, Cornell University Hospital for Animals, College of Veterinary Medicine, Cornell University, Ithaca, New York 14853, USA |
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0425-1644 |
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PMID:11266073 |
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refbase @ user @ |
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31 |
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Author |
McGreevy, P.D.; Webster, A.J.; Nicol, C.J. |
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Title |
Study of the behaviour, digestive efficiency and gut transit times of crib-biting horses |
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Journal Article |
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Year |
2001 |
Publication |
The Veterinary record |
Abbreviated Journal |
Vet. Rec. |
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Volume |
148 |
Issue |
19 |
Pages |
592-596 |
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Keywords |
Animals; Behavior, Animal/*physiology; Case-Control Studies; *Digestion; *Gastrointestinal Motility/drug effects; Horse Diseases/*physiopathology; Horses/*physiology/psychology; Male; Stereotyped Behavior/*physiology; Sulfapyridine/blood; Sulfasalazine/diagnostic use/pharmacology |
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The spontaneous behaviour and the apparent digestibility of dry matter and fibre and transit times of digesta were compared in four normal horses and four crib-biters. A technique was developed for measuring total gut transit times (TGTT) by using single-stool analysis of the passage of radio-opaque polyethylene markers. Longer TGTT were recorded in the crib-biters than in the normal horses but the orocaecal transit times did not differ. The crib-biters rested less than the normal horses. |
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Department of Clinical Veterinary Science, University of Bristol, Langford |
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0042-4900 |
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PMID:11386445 |
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refbase @ user @ |
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86 |
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