Records |
Author |
La Riviere, J.W. |
Title |
Ecology of yeasts in the kefir grain |
Type |
Journal Article |
Year |
1969 |
Publication |
Antonie van Leeuwenhoek |
Abbreviated Journal |
Antonie Van Leeuwenhoek |
Volume |
35 |
Issue |
|
Pages |
Suppl:D15-6 |
Keywords |
Animals; *Dairy Products; *Food Microbiology; Horses; Lactobacillus/*growth & development/isolation & purification; Mitosporic Fungi/*growth & development/isolation & purification; Saccharomyces/*growth & development/isolation & purification; Symbiosis |
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ISSN |
0003-6072 |
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PMID:5311957 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2741 |
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Author |
Houpt, K.A.; Zahorik, D.M.; Swartzman-Andert, J.A. |
Title |
Taste aversion learning in horses |
Type |
Journal Article |
Year |
1990 |
Publication |
Journal of animal science |
Abbreviated Journal |
J. Anim Sci. |
Volume |
68 |
Issue |
8 |
Pages |
2340-2344 |
Keywords |
Animal Feed; Animals; *Avoidance Learning; Feeding Behavior/*psychology; *Food Preferences; Horses/physiology/*psychology; *Taste |
Abstract |
The ability of ponies to learn to avoid a relatively novel food associated with illness was tested in three situations: when illness occurred immediately after consuming a feed; when illness occurred 30 min after consuming a feed; and when illness was contingent upon eating one of three feeds offered simultaneously. Apomorphine was used to produce illness. The feeds associated with illness were corn, alfalfa pellets, sweet feed and a complete pelleted feed. The ponies learned to avoid all the fees except the complete feed when apomorphine injection immediately followed consumption of the feed. However, the ponies did not learn to avoid a feed if apomorphine was delayed 30 min after feed consumption. They could learn to avoid alfalfa pellets, but not corn, when these feeds were presented with the familiar “safe foods,” oats and soybean meal. Ponies apparently are able to learn a taste aversion, but there were constraints on this learning ability. Under the conditions of this study, they did not learn to avoid a food that made them sick long after consumption of the food, and they had more difficulty learning to avoid highly palatable feeds. |
Address |
Cornell University, Ithaca, NY 14853 |
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ISSN |
0021-8812 |
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Notes |
PMID:2401656 |
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no |
Call Number |
refbase @ user @ |
Serial |
41 |
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Author |
Dyer, F.C. |
Title |
Animal behaviour: when it pays to waggle |
Type |
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Year |
2002 |
Publication |
Nature |
Abbreviated Journal |
Nature |
Volume |
419 |
Issue |
6910 |
Pages |
885-886 |
Keywords |
*Animal Communication; Animals; Bees/*physiology; California; Dancing/physiology; Environment; Evolution; Female; Flowers/chemistry; *Food; Gravitation; Lighting; Motor Activity/*physiology; Odors; Seasons; Sunlight |
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ISSN |
0028-0836 |
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PMID:12410290 |
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no |
Call Number |
refbase @ user @ |
Serial |
769 |
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Author |
Rands, S.A.; Cowlishaw, G.; Pettifor, R.A.; Rowcliffe, J.M.; Johnstone, R.A. |
Title |
Spontaneous emergence of leaders and followers in foraging pairs |
Type |
Journal Article |
Year |
2003 |
Publication |
Nature |
Abbreviated Journal |
Nature |
Volume |
423 |
Issue |
6938 |
Pages |
432-434 |
Keywords |
Animals; *Energy Metabolism; Food; *Food Chain; *Models, Biological; Motor Activity; *Social Behavior; Time Factors |
Abstract |
Animals that forage socially often stand to gain from coordination of their behaviour. Yet it is not known how group members reach a consensus on the timing of foraging bouts. Here we demonstrate a simple process by which this may occur. We develop a state-dependent, dynamic game model of foraging by a pair of animals, in which each individual chooses between resting or foraging during a series of consecutive periods, so as to maximize its own individual chances of survival. We find that, if there is an advantage to foraging together, the equilibrium behaviour of both individuals becomes highly synchronized. As a result of this synchronization, differences in the energetic reserves of the two players spontaneously develop, leading them to adopt different behavioural roles. The individual with lower reserves emerges as the 'pace-maker' who determines when the pair should forage, providing a straightforward resolution to the problem of group coordination. Moreover, the strategy that gives rise to this behaviour can be implemented by a simple 'rule of thumb' that requires no detailed knowledge of the state of other individuals. |
Address |
Department of Zoology, University of Cambridge, Downing Street, Cambridge CB2 3EJ, UK. s.rands@zoo.cam.ac.uk |
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0028-0836 |
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Notes |
PMID:12761547 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
5138 |
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Author |
Shettleworth, S.J.; Westwood, R.P. |
Title |
Divided attention, memory, and spatial discrimination in food-storing and nonstoring birds, black-capped chickadees (Poecile atricapilla) and dark-eyed juncos (Junco hyemalis) |
Type |
Journal Article |
Year |
2002 |
Publication |
Journal of experimental psychology. Animal behavior processes |
Abbreviated Journal |
J Exp Psychol Anim Behav Process |
Volume |
28 |
Issue |
3 |
Pages |
227-241 |
Keywords |
Animals; Attention/*physiology; Behavior, Animal/physiology; Birds; *Discrimination (Psychology); *Food Habits; Memory/*physiology; Space Perception/*physiology; Spatial Behavior/*physiology |
Abstract |
Food-storing birds, black-capped chickadees (Poecile atricapilla), and nonstoring birds, dark-eyed juncos (Junco hyemalis), matched color or location on a touch screen. Both species showed a divided attention effect for color but not for location (Experiment 1). Chickadees performed better on location than on color with retention intervals up to 40 s, but juncos did not (Experiment 2). Increasing sample-distractor distance improved performance similarly in both species. Multidimensional scaling revealed that both use a Euclidean metric of spatial similarity (Experiment 3). When choosing between the location and color of a remembered item, food storers choose location more than do nonstorers. These results explain this effect by differences in memory for location relative to color, not division of attention or spatial discrimination ability. |
Address |
Department of Psychology, University of Toronto, 100 Saint George Street, Toronto, Ontario M5S 3G3, Canada. shettle@psych.utoronto.ca |
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English |
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ISSN |
0097-7403 |
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Notes |
PMID:12136700 |
Approved |
no |
Call Number |
refbase @ user @ |
Serial |
370 |
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Author |
Shettleworth, S.J. |
Title |
Reinforcement and the organization of behavior in golden hamsters: Pavlovian conditioning with food and shock unconditioned stimuli |
Type |
Journal Article |
Year |
1978 |
Publication |
Journal of experimental psychology. Animal behavior processes |
Abbreviated Journal |
J Exp Psychol Anim Behav Process |
Volume |
4 |
Issue |
2 |
Pages |
152-169 |
Keywords |
Acoustic Stimulation; Animals; *Behavior, Animal; *Conditioning, Classical; Conditioning, Operant; Cricetinae; *Electroshock; Female; *Food; Male; Punishment; *Reinforcement (Psychology); Reinforcement Schedule |
Abstract |
The effects of Pavlovian conditioned stimuli (CSs) for food or shock on a variety of behaviors of golden hamsters were observed in three experiments. The aim was to see whether previously reported differences among the behaviors produced by food reinforcement and punishment procedures could be accounted for by differential effects of Pavlovian conditioning on the behaviors. There was some correspondence between the behaviors observed to the CSs and the previously reported effects of instrumental training. However, the Pavlovian conditioned responses (CRs) alone would not have predicted the effects of instrumental training. Moreover, CRs depended to some extent on the context in which training and testing occurred. These findings, together with others in the literature, suggest that the results of Pavlovian conditioning procedures may not unambiguously predict what system of behaviors will be most readily modified by instrumental training with a given reinforcer. |
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0097-7403 |
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Notes |
PMID:670890 |
Approved |
no |
Call Number |
refbase @ user @ |
Serial |
387 |
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Author |
Vlamings, P.H.J.M.; Uher, J.; Call, J. |
Title |
How the great apes (Pan troglodytes, Pongo pygmaeus, Pan paniscus, and Gorilla gorilla) perform on the reversed contingency task: the effects of food quantity and food visibility |
Type |
Journal Article |
Year |
2006 |
Publication |
Journal of Experimental Psychology. Animal Behavior Processes |
Abbreviated Journal |
J Exp Psychol Anim Behav Process |
Volume |
32 |
Issue |
1 |
Pages |
60-70 |
Keywords |
Age Factors; Animals; Behavior, Animal/physiology; Cognition; Conditioning (Psychology); Female; *Food; Gorilla gorilla/*psychology; *Learning; Male; Pan paniscus/*psychology; Pan troglodytes/*psychology; Pongo pygmaeus/*psychology; *Visual Perception |
Abstract |
S. T. Boysen and G. G. Berntson (1995) found that chimpanzees performed poorly on a reversed contingency task in which they had to point to the smaller of 2 food quantities to acquire the larger quantity. The authors compared the performance of 4 great ape species (Pan troglodytes, Pongo pygmaeus, Pan paniscus, and Gorilla gorilla) on the reversed contingency task while manipulating food quantity (0-4 or 1-4) and food visibility (visible pairs or covered pairs). Results showed no systematic species differences but large individual differences. Some individuals of each species were able to solve the reversed contingency task. Both quantity and visibility of the food items had a significant effect on performance. Subjects performed better when the disparity between quantities was smaller and the quantities were not directly visible. |
Address |
Department of Developmental and Comparative Psychology, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany. p.vlamings@psychology.unimaas.nl |
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0097-7403 |
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Notes |
PMID:16435965 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2765 |
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Author |
Beran, M.J.; Beran, M.M.; Harris, E.H.; Washburn, D.A. |
Title |
Ordinal judgments and summation of nonvisible sets of food items by two chimpanzees and a rhesus macaque |
Type |
Journal Article |
Year |
2005 |
Publication |
Journal of Experimental Psychology. Animal Behavior Processes |
Abbreviated Journal |
J Exp Psychol Anim Behav Process |
Volume |
31 |
Issue |
3 |
Pages |
351-362 |
Keywords |
Animals; Behavior, Animal; Chi-Square Distribution; Cognition; Color Perception/physiology; Female; *Food; Judgment/*physiology; Macaca mulatta; Male; Pan troglodytes; Serial Learning/*physiology; Size Perception |
Abstract |
Two chimpanzees and a rhesus macaque rapidly learned the ordinal relations between 5 colors of containers (plastic eggs) when all containers of a given color contained a specific number of identical food items. All 3 animals also performed at high levels when comparing sets of containers with sets of visible food items. This indicates that the animals learned the approximate quantity of food items in containers of a given color. However, all animals failed in a summation task, in which a single container was compared with a set of 2 containers of a lesser individual quantity but a greater combined quantity. This difficulty was not overcome by sequential presentation of containers into opaque receptacles, but performance improved if the quantitative difference between sizes was very large. |
Address |
Language Research Center, Georgia State University, Decatur, 30034, USA. mjberan@yahoo.com |
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0097-7403 |
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Notes |
PMID:16045389 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2766 |
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Author |
Beerwerth, W.; Schurmann, J. |
Title |
[Contribution to the ecology of mycobacteria] |
Type |
Journal Article |
Year |
1969 |
Publication |
Zentralblatt fur Bakteriologie, Parasitenkunde, Infektionskrankheiten und Hygiene. 1. Abt. Medizinisch-Hygienische Bakteriologie, Virusforschung und Parasitologie. Originale |
Abbreviated Journal |
Zentralbl Bakteriol [Orig] |
Volume |
211 |
Issue |
1 |
Pages |
58-69 |
Keywords |
*Animal Feed; Animals; Cattle; Chickens; Ecology; Feces/*microbiology; *Food Microbiology; Germany, West; Horses; Hydroxides; Mycobacterium/classification/*isolation & purification; Mycobacterium tuberculosis/isolation & purification; Oxalates; *Sewage; Sheep; Sodium; *Soil Microbiology; Swine; *Water Microbiology |
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German |
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Original Title |
Zur Okologie der Mykobakterien |
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ISSN |
0372-8110 |
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Notes |
PMID:4989344 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2743 |
Permanent link to this record |
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Author |
Hawkes, J.; Hedges, M.; Daniluk, P.; Hintz, H.F.; Schryver, H.F. |
Title |
Feed preferences of ponies |
Type |
Journal Article |
Year |
1985 |
Publication |
Equine Veterinary Journal |
Abbreviated Journal |
Equine Vet J |
Volume |
17 |
Issue |
1 |
Pages |
20-22 |
Keywords |
*Animal Feed; Animals; Feeding Behavior/physiology; Female; *Food Preferences; Horses/*physiology; Male |
Abstract |
Preference trials were conducted with mature ponies. In Trial 1, oats were compared with oats plus sucrose. Four of six pony geldings selected oats plus sucrose, but one pony demonstrated a dislike for sucrose and one selected from the bucket on the right side regardless of content. Oats, maize, barley, rye and wheat were compared in Trial 2 using six mature pony mares. Oats were the preferred grain, with maize and barley ranking second and third respectively. Wheat and rye were the least preferred. Even though the ponies demonstrated preference, the total intake at a given meal was not greatly depressed when only the less palatable grains were fed. In Trial 3, pony mares selected a diet containing 20 per cent dried distillers' grain and 80 per cent of a basal mixed diet of maize, oats, wheat bran, soybean meal, limestone and molasses over 100 per cent basal mixed diet, but selected the basal diet over diets containing 20 per cent blood meal, beet pulp or meat and bone meal and 80 per cent basal diet. They did not differentiate against diets containing 20 per cent alfalfa meal or 10 or 5 per cent meat and bone meal when the diets were compared to the basal mixed diet. |
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ISSN |
0425-1644 |
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PMID:3979369 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2298 |
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