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	Author	Stock, K.F.; Distl, O.
	Title	Prediction of breeding values for osseous fragments in fetlock and hock joints, deforming arthropathy in hock joints, and pathologic changes in the navicular bones of Hanoverian Warmblood horses			Type	Journal Article
	Year	2005	Publication	Livestock Production Science	Abbreviated Journal
	Volume	92	Issue	1	Pages	77-94
	Keywords	Hanoverian Warmblood horse; Radiological status; Breeding values; Response to selection
	Abstract	The results of a standardised radiological examination of 5928 Hanoverian Warmblood horses selected for sale at auction were used to predict relative breeding values (RBV) in the 23,662 horses included in the last four generations of the probands' pedigrees. The distribution of the RBV was investigated in the whole four-generation pedigree, in the probands and in those stallions that contributed at least three offspring to the probands. The RBV of the probands' sires were further compared with the officially published performance-based relative breeding values, i.e., total indices dressage (TID) and jumping (TIJ). The sires' level of dressage indices was considerably higher (mean TID=110) than of the jumping indices (mean TIJ=98). Total indices radiographic findings (TIR) were calculated for the sires with varying weighting given to the individual RBV. In each case, this resulted in a mean TIR of 99. Finally, total indices were derived from TIR and TID and/or TIJ in order to develop different selection schemes for all-purpose breeding and for breeding focused on dressage and show jumping. All breeding values under consideration increased by between 1% and 19% when radiographic findings were weighted with between 30% and 60% complementary to the corresponding performance parameters, and when only sires were selected with above average total indices. At the same time, the prevalences of the radiographic findings investigated here were lowered by up to 10% each. When only one radiographic finding was considered at a time, the maximum attainable response to selection was a 16-23% increase in the relative breeding values and a relative decrease in prevalences of radiographic findings of between 31% and 52%. The results of this study indicate that it is possible in horse breeding to consider simultaneously health and performance traits. Medical data should be included in the prediction of breeding values in order to improve the radiological status of today's riding horses.
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	Call Number	refbase @ user @			Serial	3953
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	Author	Shi, J.; Dunbar, R.I.M.; Buckland, D.; Miller, D.
	Title	Dynamics of grouping patterns and social segregation in feral goats (Capra hircus) on the Isle of Rum, NW Scotland			Type	Journal Article
	Year	2005	Publication	Mammalia	Abbreviated Journal
	Volume	69	Issue		Pages
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	Notes				Approved	no
	Call Number	Equine Behaviour @ team @ Shi2005			Serial	6257
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	Author	Saunders, F.C.; McElligott, A.G.; Safi, K.; Hayden, T.J.
	Title	Mating tactics of male feral goats (Capra hircus): risks and benefits			Type	Journal Article
	Year	2005	Publication	Acta Ethol	Abbreviated Journal
	Volume	8	Issue		Pages
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	Notes				Approved	no
	Call Number	Equine Behaviour @ team @ Saunders2005			Serial	6252
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	Author	Dumont, B.; Boissy, A.; Achard, C.; Sibbald, A.M.; Erhard, H.W.
	Title	Consistency of animal order in spontaneous group movements allows the measurement of leadership in a group of grazing heifers			Type	Journal Article
	Year	2005	Publication	Applied Animal Behaviour Science	Abbreviated Journal	Appl. Anim. Behav. Sci.
	Volume	95	Issue	1-2	Pages	55-66
	Keywords	Cattle; Grazing; Leadership; Movement order; Walking
	Abstract	The term `leadership' has been used in several different senses, resulting in very different ways of identifying leaders and apparently inconsistent conclusions on how leadership is determined in herbivores. We therefore propose the following definitions: (i) a leader is the individual that is consistently the one who initiates long-distance, spontaneous group movements toward a new feeding site and (ii) long-distance spontaneous group movements are movements which happen when an animal changes activity and location and is immediately followed by a similar change in activity and location by other members of the group. Using these definitions, we tested for consistency of movement order across time and situation within a group of fifteen 2-year-old heifers. We found that the same individual was recorded as the very first animal in 48% of movements toward a new feeding site and could therefore be identified as the `leader'. We also showed that movement order when the animals entered an experimental plot, or progressed slowly through the field during a grazing bout, did not produce the same result. This method, which enables us to identify leaders in groups of animals at pasture, should improve our knowledge of how leadership is determined in grazing herbivores.
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	Notes				Approved	no
	Call Number	Equine Behaviour @ team @ room B 3.029			Serial	2027
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	Author	McGreevy, P.D.; Rogers, L.J.
	Title	Motor and sensory laterality in thoroughbred horses			Type	Journal Article
	Year	2005	Publication	Applied Animal Behaviour Science	Abbreviated Journal	Appl. Anim. Behav. Sci.
	Volume	92	Issue	4	Pages	337-352
	Keywords	Horse; Lateralisation; Training; Olfaction; Forelimb preference
	Abstract	We investigated lateralisation in horses because it is likely to be important in training and athletic performance. Thoroughbred horses (n = 106) were observed every 60 s for 2 h, when they were at pasture, and the position of the forelimbs in relation to one another was recorded. There was a population bias skewed to standing with the left forelimb advanced over the right (i.e. directional lateralisation). Using the first 50 observations, the distribution of preferences was 43 significantly left, 10 significantly right with 53 being non-significant (i.e. ambidextextrous). The strength of motor bias increased with age, suggesting maturation or an influence of training. The horses were also presented with an olfactory stimulus (stallion faeces) to score the tendency to use one nostril rather than the other. A significant preference to use the right nostril first was shown in horses under 4 years of age (n = 61) but not in older horses. Of the 157 horses tested for nostril bias, 76 had been assessed for motor bias and so were used for analysis of the relationship between laterality in the two modalities. There was no significant relationship between direction of foreleg motor bias and first nostril used, total number of inhalations or laterality index of nostril use. The absence of a correlation between laterality of nostril use and motor bias indicates that lateralisation of the equine brain occurs on at least two levels of neural organisation--sensory and motor--a finding that is consistent with other examples of lateralisation in species that have been examined in more detail.
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	Call Number	Equine Behaviour @ team @ room 3.029			Serial	1827
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	Author	Pérez-Barbería, F.J.; Gordon, I.J.
	Title	Gregariousness increases brain size in ungulates			Type	Journal Article
	Year	2005	Publication	Oecologia	Abbreviated Journal
	Volume	145	Issue		Pages
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	Notes				Approved	no
	Call Number	Equine Behaviour @ team @ Pérez-Barbería2005			Serial	6258
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	Author	Kruska, D.C.T.
	Title	On the evolutionary significance of encephalization in some eutherian mammals: effects of adaptive radiation, domestication, and feralization			Type	Journal Article
	Year	2005	Publication	Brain Behav Evol	Abbreviated Journal
	Volume	65	Issue		Pages
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	Notes				Approved	no
	Call Number	Equine Behaviour @ team @ Kruska2005			Serial	6235
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	Author	Hausberger, M.; Richard-Yris, M.-A.
	Title	Individual differences in the domestic horse, origins, development and stability			Type	Book Chapter
	Year	2005	Publication	The domestic horse : the origins, development, and management of its behaviour	Abbreviated Journal
	Volume		Issue		Pages	33-52
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	Publisher	Cambridge University Press 2005	Place of Publication	Cambridge	Editor	Mills, D.S.; McDonnell,
	Language		Summary Language		Original Title
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	Series Volume		Series Issue		Edition
	ISSN		ISBN	13 978-0-521-81414-6	Medium
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	Notes				Approved	no
	Call Number	Equine Behaviour @ team @ Feh2005			Serial	4819
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	Author	Burch, J.W.; Layne, G.A.; Follmann, E.H.; Rexstad, E.A.
	Title	Evaluation of Wolf Density Estimation from Radiotelemetry Data			Type	Journal Article
	Year	2005	Publication	Wildl Soc Bull	Abbreviated Journal
	Volume	33	Issue		Pages
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	Notes				Approved	no
	Call Number	Equine Behaviour @ team @ Burch2005			Serial	6477
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	Author	Bates, D.
	Title	Fitting linear mixed models in R			Type	Journal Article
	Year	2005	Publication	R News	Abbreviated Journal
	Volume	5	Issue		Pages
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	Notes				Approved	no
	Call Number	Equine Behaviour @ team @ Bates2005			Serial	6293
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