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Buechner-Maxwell, V.A.; Elvinger, F.; Thatcher, C.D.; Murray, M.J.; White, N.A.; Rooney, D.K. | ||||
| Title | Physiological Response of Normal Adult Horses to a Low-Residue Liquid Diet | Type | Journal Article | ||
| Year | 2003 | Publication | Journal of Equine Veterinary Science | Abbreviated Journal | |
| Volume | 23 | Issue | 7 | Pages | 310-317 |
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| Abstract | Abstract The anorexic or dysphagic adult horse often requires nutritional support. Providing nutrients by the enteral route is the safest and most economic choice, but the dietary options available for use in horses are somewhat limited. The objective of this study was to compare the physiologic response of normal horses with a low-residue liquid or normal diet over a 10-day feeding period. Two groups of 6 normal adult horses were maintained on 1 of 2 diets for a 10-day period. Diets were formulated to meet the caloric needs of a horse maintained in a stall. The control group was fed 70% timothy hay and 30% textured concentrate for the test period, and the experimental group received the low-residue liquid diet, similar to liquid nutritional formulas designed for human use. Clinical parameters, body weight, packed cell volume, total plasma solids, blood glucose, and serum electrolytes were recorded daily for each horse during the dietary trial period. On days 1, 5, and 10 of the study, a complete blood count, serum biochemical profile, and urinalysis were performed. Horses' serum total bilirubin concentration and pattern of weight loss differed between groups. All other physical parameters, blood chemistry, complete blood count, and urinalysis results remained within the normal reference interval for the horses regardless of diet, although some statistical differences were observed. Horses returned to pasture and free-choice grass diet without complications at the end of the dietary trial period. These results demonstrate that few differences of biologic significance were observed between horses being fed low-residue diet and horses receiving a normal diet of hay and grain over a 10-day period. (Equine Vet J 2003;23:310-317) | ||||
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| Notes | Approved | no | |||
| Call Number | Equine Behaviour @ team @ | Serial | 4229 | ||
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| Author |
Broucek, J.; Ksac, P.; Uhrincat, M. | ||||
| Title | The effect of sire line on learning and locomotor behaviour of heifers | Type | Journal Article | ||
| Year | 2003 | Publication | Czech Journal of Animal Science | Abbreviated Journal | Czech J. Anim. Sci |
| Volume | 48 | Issue | Pages | 387-394 | |
| Keywords | heifers; sire; maze; open-field test; repeatability; learning; locomotor behaviour relationship | ||||
| Abstract | ABSTRACT: e aim of this study was to test the effect of sire line on maze learning ability and locomotor behaviour in open-field tests of heifers, consistency over the time of grid crossing and relationship between the time of traversing the maze and grid crossings in open-field tests, respectively. We analysed the results of ethological tests for 54 Holstein heifers that descended from 7 sires. Maze behaviour was observed at the age of 15 weeks, an open-field test was applied at two age periods, 16 weeks and 18 months. We found out highly significant differences in the time of traversing the maze between heifers of different sire origin (P < 0.01). e number of grid crossings over the five minutes of the open-field test did not differ between the daughters of the age of 16 weeks and 18 months. Repeatability between the number of grid crossings at the age of 16 weeks and 18 months was proved by significant correlation (r = 0.2713*). On the contrary, significant relationships between the times of traversing the maze and locomotor behaviour in the open-field test (r =-0.3739*) were found only when the sequence of observations followed after a week pause (age of 15 and 16 weeks). |
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| Notes | Approved | no | |||
| Call Number | Equine Behaviour @ team @ | Serial | 4322 | ||
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| Author |
Brosnan, S.F.; De Waal, F.B.M. | ||||
| Title | Monkeys reject unequal pay | Type | Journal Article | ||
| Year | 2003 | Publication | Nature | Abbreviated Journal | Nature |
| Volume | 425 | Issue | 6955 | Pages | 297-299 |
| Keywords | Aging; Animals; Cebus/*psychology; Choice Behavior; *Cooperative Behavior; Female; Male; *Reward; Social Justice | ||||
| Abstract | During the evolution of cooperation it may have become critical for individuals to compare their own efforts and pay-offs with those of others. Negative reactions may occur when expectations are violated. One theory proposes that aversion to inequity can explain human cooperation within the bounds of the rational choice model, and may in fact be more inclusive than previous explanations. Although there exists substantial cultural variation in its particulars, this 'sense of fairness' is probably a human universal that has been shown to prevail in a wide variety of circumstances. However, we are not the only cooperative animals, hence inequity aversion may not be uniquely human. Many highly cooperative nonhuman species seem guided by a set of expectations about the outcome of cooperation and the division of resources. Here we demonstrate that a nonhuman primate, the brown capuchin monkey (Cebus apella), responds negatively to unequal reward distribution in exchanges with a human experimenter. Monkeys refused to participate if they witnessed a conspecific obtain a more attractive reward for equal effort, an effect amplified if the partner received such a reward without any effort at all. These reactions support an early evolutionary origin of inequity aversion. | ||||
| Address | Living Links, Yerkes National Primate Research Center, Emory University, Atlanta, Georgia 30329, USA. sbrosna@emory.edu | ||||
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| Language | English | Summary Language | Original Title | ||
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| ISSN | 1476-4687 | ISBN | Medium | ||
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| Notes | PMID:13679918 | Approved | no | ||
| Call Number | refbase @ user @ | Serial | 179 | ||
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| Author |
Brilot, B.O.; Johnstone, R.A. | ||||
| Title | The limits to cost-free signalling of need between relatives | Type | Journal Article | ||
| Year | 2003 | Publication | Proceedings. Biological sciences / The Royal Society | Abbreviated Journal | Proc Biol Sci |
| Volume | 270 | Issue | 1519 | Pages | 1055-1060 |
| Keywords | *Animal Communication; Animals; Birds/physiology; Models, Biological; *Social Behavior | ||||
| Abstract | Theoretical models have demonstrated the possibility of stable cost-free signalling of need between relatives. The stability of these cost-free equilibria depends on the indirect fitness cost of cheating and deceiving a donor into giving away resources. We show that this stability is highly sensitive to the distribution of need among signallers and receivers. In particular, cost-free signalling is likely to prove stable only if there is very large variation in need (such that the least-needy individuals stand to gain much less than the most-needy individuals from additional resources). We discuss whether these conditions are likely to be found in altricial avian breeding systems--the most intensively studied instance of signalling of need between relatives. We suggest that cost-free signalling is more likely to prove stable and will provide parents with more information during the earlier phases of chick growth, when parents can more easily meet the demands of a brood (and chicks are more likely to reach satiation). Later, informative yet cost-free signalling is unlikely to persist. | ||||
| Address | Department of Zoology, University of Cambridge, Downing Street, Cambridge CB2 3EJ, UK. bob21@cam.ac.uk | ||||
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| Language | English | Summary Language | Original Title | ||
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| ISSN | 0962-8452 | ISBN | Medium | ||
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| Notes | PMID:12803895 | Approved | no | ||
| Call Number | refbase @ user @ | Serial | 558 | ||
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Breuer, K.; Sutcliffe, M.E.M.; Mercer, J.T.; Rance, K.A.; Beattie, V.E.; Sneddon, I.A.; Edwards, S.A. | ||||
| Title | The effect of breed on the development of adverse social behaviours in pigs | Type | Journal Article | ||
| Year | 2003 | Publication | Applied Animal Behaviour Science | Abbreviated Journal | Appl. Anim. Behav. Sci. |
| Volume | 84 | Issue | 1 | Pages | 59-74 |
| Keywords | Pig; Breed; Harmful social behaviour; Ear-biting; Tail-biting; Tail-chew test | ||||
| Abstract | Tail-biting and other harmful social behaviours are a common problem on pig farms. The aims of the current experiment were (1) to investigate the genetic component of harmful social behaviours such as tail-biting by assessing breed differences, and (2) to further investigate the reliability and predictability of a test, [`]the tail-chew test', previously identified as potentially being capable of predicting a pig's predisposition for tail- and ear-biting. The behaviour of three pig breeds (Large White (LW), Landrace (LR), Duroc (DR)), with 100 pigs per breed, was observed in a [`]tail-chew test', and by observing the performance of harmful social behaviour directed to pen mates in flat deck pens after weaning. The tail-chew test, carried out on two consecutive days pre-weaning, involved observing the behaviour of individual pigs towards two suspended ropes. Pigs were weaned at 28 days and the occurrence of harmful social behaviour was recorded 4 weeks later over 2 consecutive days (1 h per day) using a group [`]period occurrence' scanning method. Breed had a significant effect on rope-directed behaviour in the tail-chew test and on harmful social behaviour. DR pigs interacted with the ropes in the tail-chew test more often (median 23.0 vs 19.0 and 17.5 times in 20 min, P<0.001) and for longer (31.0 vs 20.0 and 23.2 s, P<0.001) than LR and LW pigs, respectively. Although not significantly different from LW, DR pigs tended to direct more total harmful social behaviour towards pen mates than the other breeds. In particular, DR were observed in more total pig-directed biting of pen mates (median 9.0 vs 6.0 and 7.0, P<0.01) than LR and LW, and tended to nose pen mates more often than the other breeds (13.0 vs 11.0 and 10.0, P=0.06). LR pigs bit the ears of pen mates less often than LW and DR (4.0 vs 5.0 and 6.0, P<0.001). Belly-nosing activity was low, with a median of 0 for all breeds, but LR belly-nosed pen mates more often than Durocs (interquartile ranges 0-2.0 vs 0-1.0 and 0-1.0, P<0.01). The behaviour observed in the tail-chew test on day 1 correlated significantly with that observed on day 2 of the test (e.g. frequency of rope-directed behaviour rs=0.380,P<0.01). There were significant but weak correlations between rope-directed behaviour and the performance of some harmful social behaviours. The significant breed differences indicate some genetic contribution to expression of harmful social behaviours. However, the tail-chew test was found to be of limited ability to predict tail- and ear-biting under commercial conditions. | ||||
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| ISSN | 0168-1591 | ISBN | Medium | ||
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| Notes | Approved | no | |||
| Call Number | Equine Behaviour @ team @ | Serial | 4979 | ||
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| Author |
Breuer, K.; Hemsworth, P.H.; Coleman, G.J. | ||||
| Title | The effect of positive or negative handling on the behavioural and physiological responses of nonlactating heifers | Type | Journal Article | ||
| Year | 2003 | Publication | Applied Animal Behaviour Science | Abbreviated Journal | Appl. Anim. Behav. Sci. |
| Volume | 84 | Issue | 1 | Pages | 3-22 |
| Keywords | Dairy heifer; Fear; Handling; Stress response; Milk production; Stimulus generalisation | ||||
| Abstract | This experiment investigated the effects of positive and negative tactile handling on the stress physiology and behaviour of dairy heifers. Forty-eight 5-14-month-old nonlactating Holstein-Friesian heifers were allocated to one of two handling treatments, either positive or negative tactile handling, over four time replicates. Handling was imposed twice daily, 2-5 min per session and involved moving animals individually along a 64 m outdoor route. The negatively handled heifers took longer to approach within 1 and 2 m of a stimulus person in a standard test, than their positively handled counterparts (P<0.001) and had a greater flight distance to an approaching stimulus (P<0.001). The time taken by the heifers to approach within 1 and 2 m of a familiar person was similar to that taken to approach within 1 and 2 m of an unfamiliar person in the standard test (P<0.05). There was a tendency for heifers to have a greater flight distance from the approaching unfamiliar person than from the approaching familiar person (P=0.06). The negatively handled heifers had greater (P<0.05) increases in total cortisol concentrations 5, 10 and 15 min after exposure to a human and had higher (P<0.05) free cortisol concentrations in the afternoon than the positively handled heifers. It is concluded that the nature of the human contact affects the subsequent behavioural response of heifers to humans. This behavioural response may extend to other humans through the process of stimulus generalisation, although there was some evidence of moderate discrimination. Negative handling results in an acute stress response in the presence of humans and also leads to a chronic stress response. Further research into the effect of these stress responses on milk production and welfare in fearful cows in a commercial situation is suggested. | ||||
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| ISSN | 0168-1591 | ISBN | Medium | ||
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| Notes | Approved | no | |||
| Call Number | Equine Behaviour @ team @ | Serial | 4980 | ||
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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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| Language | English | Summary Language | Original Title | ||
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| ISSN | 0149-7634 | ISBN | Medium | ||
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| Notes | PMID:12732230 | Approved | no | ||
| Call Number | Equine Behaviour @ team @ | Serial | 2805 | ||
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| Author |
Bowling, A.T.; Zimmermann, W.; Ryder, O.; Penado, C.; Peto, S.; Chemnick, L.; Yasinetskaya, N.; Zharkikh, T. | ||||
| Title | Genetic variation in Przewalski’s horses, with special focus on the last wild caught mare, 231 Orlitza III | Type | Journal Article | ||
| Year | 2003 | Publication | Cytogenetic and Genome Research | Abbreviated Journal | Cytogenet Genome Res |
| Volume | 102 | Issue | 1-4 | Pages | 226-234 |
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| ISSN | 1424-8581 | ISBN | Medium | ||
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| Notes | Approved | no | |||
| Call Number | Equine Behaviour @ team @ | Serial | 5045 | ||
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| Author |
Bond, A.B.; Kamil, A.C.; Balda, R.P. | ||||
| Title | Social complexity and transitive inference in corvids | Type | Journal Article | ||
| Year | 2003 | Publication | Animal Behaviour. | Abbreviated Journal | Anim. Behav. |
| Volume | 65 | Issue | 3 | Pages | 479-487 |
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| Abstract | The social complexity hypothesis asserts that animals living in large social groups should display enhanced cognitive abilities along predictable dimensions. To test this concept, we compared highly social pinyon jays,Gymnorhinus cyanocephalus , with relatively nonsocial western scrub-jays, Aphelocoma californica, on two complex cognitive tasks relevant to the ability to track and assess social relationships. Pinyon jays learned to track multiple dyadic relationships more rapidly and more accurately than scrub-jays and appeared to display a more robust and accurate mechanism of transitive inference. These results provide a clear demonstration of the association between social complexity and cognition in animals. Copyright 2003 Published by Elsevier Science Ltd on behalf of The Association for the Study of Animal Behaviour. | ||||
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| Call Number | Equine Behaviour @ team @ room B 3.029 | Serial | 399 | ||
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| Author |
Bolhuis, J.J. | ||||
| Title | Bird brains and behaviour: perception, cognition and production | Type | Journal Article | ||
| Year | 2003 | Publication | Animal Biology | Abbreviated Journal | |
| Volume | 53 | Issue | 2 | Pages | 71-72 |
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| Notes | formerly Netherlands Journal of Zoology | Approved | no | ||
| Call Number | Equine Behaviour @ team @ | Serial | 3104 | ||
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