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	Author	Shettleworth, S.J.
	Title	Stimulus relevance in the control of drinking and conditioned fear responses in domestic chicks (Gallus gallus)			Type	Journal Article
	Year	1972	Publication	Journal of comparative and physiological psychology	Abbreviated Journal	J Comp Physiol Psychol
	Volume	80	Issue	2	Pages	175-198
	Keywords	Acoustic Stimulation; Animals; Auditory Perception; Chickens; Conditioning (Psychology); Conditioning, Classical; Discrimination Learning; Drinking Behavior; Electroshock; Fear; Light; Motor Activity; Photic Stimulation; Punishment; Quinine; *Sound; Taste; Visual Perception
	Abstract
	Address
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0021-9940	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:5047826			Approved	no
	Call Number	refbase @ user @			Serial	390
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	Author	Dixon, G.; Green, L.E.; Nicol, C.J.
	Title	Effect of diet change on the behavior of chicks of an egg-laying strain			Type	Journal Article
	Year	2006	Publication	Journal of applied animal welfare science : JAAWS	Abbreviated Journal	J Appl Anim Welf Sci
	Volume	9	Issue	1	Pages	41-58
	Keywords	Animal Feed; Animal Nutrition Physiology; Animals; Behavior, Animal/physiology; Chickens/physiology; Crowding; Feeding Behavior/*physiology; Female; Food Preferences/physiology; Oviposition; Random Allocation; Taste
	Abstract	Injurious pecking has serious welfare consequences in flocks of hens kept for egg laying, especially when loose-housed. Frequent diet change is a significant risk for injurious pecking; how the mechanics of diet change influence pecking behavior is unknown. This study investigated the effect of diet change on the behavior of chicks from a laying strain. The study included a 3-week familiarity phase: 18 chick pairs received unflavored feed (Experiment 1); 18 pairs received orange oil-flavored (Experiment 2). All chicks participated in a dietary preference test (P); a diet change (DC); or a control group (C), 6 scenarios. All P chicks preferred unflavored feed. In Experiment 1, DC involved change from unflavored to orange-flavored; Experiment 2, orange- flavored to unflavored. Compared with controls, Experiment 2 DC chicks exhibited few behavioral differences; Experiment 1 DC chicks exhibited increased behavioral event rates on Days 1 and 7. They pecked significantly longer at their environment; by Day 7, they showed significantly more beak activity. There was little evidence of dietary neophobia. Change from more preferred to less preferred feed led to increased activity and redirected pecking behavior.
	Address	School of Veterinary Science, University of Bristol, England
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	1088-8705	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:16649950			Approved	no
	Call Number	refbase @ user @			Serial	64
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	Author	Munoz-Sanz, A.
	Title	[Christopher Columbus flu. A hypothesis for an ecological catastrophe]			Type	Journal Article
	Year	2006	Publication	Enfermedades Infecciosas y Microbiologia Clinica	Abbreviated Journal	Enferm Infecc Microbiol Clin
	Volume	24	Issue	5	Pages	326-334
	Keywords	Animals; Atlantic Islands; Birds; Chickens; Disease Outbreaks/history; Disease Reservoirs; Disease Susceptibility; Ecology; Europe/ethnology; History, 15th Century; Horses; Humans; Indians, South American; Influenza A virus/classification/genetics/pathogenicity; Influenza in Birds/epidemiology/history/transmission/virology; Influenza, Human/epidemiology/history/mortality/transmission; Models, Biological; Orthomyxoviridae Infections/epidemiology/history/veterinary/virology; Poultry Diseases/epidemiology/history/transmission/virology; Reassortant Viruses/genetics/pathogenicity; Species Specificity; Sus scrofa; Swine Diseases/history/transmission/virology; Terminology; West Indies/epidemiology
	Abstract	When Christopher Columbus and his men embarked on the second Colombian expedition to the New World (1493), the crew suffered from fever, respiratory symptoms and malaise. It is generally accepted that the disease was influenza. Pigs, horses and hens acquired in Gomera (Canary Islands) traveled in the same ship. The pigs may well have been the origin of the flu and the intermediary hosts for genetic recombination of other viral subtypes. The Caribbean archipelago had a large population of birds, the natural reservoir of the avian influenza virus. In this ecological scenario there was a concurrence of several biological elements that had never before coexisted in the New World: pigs, horses, the influenza virus and humans. We propose that birds are likely to have played an important role in the epidemiology of the flu occurring on the second Colombian trip, which caused a fatal demographic catastrophe, with an estimated mortality of 90% among the natives.
	Address	Unidad de Patologia Infecciosa, Hospital Universitario Infanta Cristina, Servicio Extremeno de Salud, Universidad de Extremadura, Badajoz, Espana. infectio@unex.es
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language	Spanish	Summary Language		Original Title	La gripe de Cristobal Colon. Hipotesis sobre una catastrofe ecologica
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0213-005X	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:16762260			Approved	no
	Call Number	Equine Behaviour @ team @			Serial	2624
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	Author	Houpt, K.A.
	Title	Animal behavior as a subject for veterinary students			Type	Journal Article
	Year	1976	Publication	The Cornell veterinarian	Abbreviated Journal	Cornell Vet
	Volume	66	Issue	1	Pages	73-81
	Keywords	Aggression; Animals; *Behavior, Animal; Cats; Chickens; Dogs; Education, Veterinary; Goats; Horses; Humans; Maternal Behavior; Mice; New York; Sexual Behavior, Animal; Sheep; Sleep; Social Behavior; Social Dominance; Swine
	Abstract	Knowledge of animal behavior is an important asset for the veterinarian; therefore a course in veterinary animal behavior is offered at the New York State College of Veterinary Medicine as an elective. The course emphasizes the behavior of those species of most interest to the practicing veterinarian: cats, dogs, horses, cows, pigs and sheep. Dominance heirarchies, animal communication, aggressive behavior, sexual behavior and maternal behavior are discussed. Play, learning, diurnal cycles of activity and sleep, and controls of ingestive behavior are also considered. Exotic and zoo animal behaviors are also presented by experts in these fields. The critical periods of canine development are related to the optimum management of puppies. The behavior of feral dogs and horses is described. The role of the veterinarian in preventing cruelty to animals and recognition of pain in animals is emphasized. Whenever possible behavior is observed in the laboratory or on film.
	Address
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0010-8901	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:767053			Approved	no
	Call Number	refbase @ user @			Serial	61
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	Author	Rogers, L.J.
	Title	Evolution of hemispheric specialization: advantages and disadvantages			Type	Journal Article
	Year	2000	Publication	Brain and Language	Abbreviated Journal	Brain Lang
	Volume	73	Issue	2	Pages	236-253
	Keywords	Aggression/psychology; Animals; Behavior, Animal/physiology; Brain/physiology; Chickens/physiology; Evolution; Feeding Behavior/physiology; Functional Laterality/*physiology; Visual Fields/physiology; Visual Perception/physiology
	Abstract	Lateralization of the brain appeared early in evolution and many of its features appear to have been retained, possibly even in humans. We now have a considerable amount of information on the different forms of lateralization in a number of species, and the commonalities of these are discussed, but there has been relatively little investigation of the advantages of being lateralized. This article reports new findings on the differences between lateralized and nonlateralized chicks. The lateralized chicks were exposed to light for 24 h on day 19 of incubation, a treatment known to lead to lateralization of a number of visually guided responses, and the nonlateralized chicks were incubated in the dark. When they were feeding, the lateralized chicks were found to detect a stimulus resembling a raptor with shorter latency than nonlateralized chicks. This difference was not a nonspecific effect caused by the light-exposed chicks being more distressed by the stimulus. Instead, it appears to be a genuine advantage conferred by having a lateralized brain. It is suggested that having a lateralized brain allows dual attention to the tasks of feeding (right eye and left hemisphere) and vigilance for predators (left eye and right hemisphere). Nonlateralized chicks appear to perform these dual tasks less efficiently than lateralized ones. Reference is made to other species in discussing these results.
	Address	Division of Zoology, University of New England, Armidale, New South Wales, Australia. lrogers@metz.une.edu.au
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0093-934X	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:10856176			Approved	no
	Call Number	Equine Behaviour @ team @			Serial	4621
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	Author	Andrew, R.J.
	Title	Changes in visual responsiveness following intercollicular lesions and their effects on avoidance and attack			Type	Journal Article
	Year	1974	Publication	Brain, Behavior and Evolution	Abbreviated Journal	Brain Behav Evol
	Volume	10	Issue	4-5	Pages	400-424
	Keywords	Animals; Chickens; Humans; Male; Mutism; Superior Colliculi/*physiology; Tectum Mesencephali; Testosterone; Visual Fields; Vocalization, Animal
	Abstract	In the normal chick, conspicuous visual stimuli induce targetting and pecking together, with vocalization. All three are abolished by lesion of the intercollicular area (ICo) or of connections passing through its medial margin. After such lesions, chicks also cease to treat significant visual stimuli as if they were startling and exciting, and may delay response as a result. However, they are still able to recognise, orient accurately to, and respond appropriately to, a variety of complex visual stimuli (e.g. food grains, copulation object). In addition, they are little affected by strange surroundings. Lesion evidence suggests the mammalian subcollicular area to have similar functions to the ICo and to be homologous with it. A route (present in bird), which is well-known in mammals for its association with threat, defense and escape evoked by strange and frightening objects (amygdala-diencephalic periventricular system-central mesencephalic grey, A-DPS-CMG) is stimuli via the 2 ICo (subcollicular area). Two different mechanisms may be involved caudal to the ICo. One consists of tectal afferents which might modulate the evocation of targetting, pecking and other responses via the tectum. The other is the predorsal system of tectal efferents which may mediate such responses. Classical syndromes of tameness and unresponsiveness produced by various interruptions of the A-DPS-CMG route may depend on interruption of connections to these midbrain mechanisms. Attack is depressed by ICo lesions as one aspect of reduced responsiveness to conspicuous and startling visual stimuli. Avoidance, which is apparently mediated by a separate system, much as in Anura, is facilitated.
	Address
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0006-8977	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:1169102			Approved	no
	Call Number	Equine Behaviour @ team @			Serial	4626
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	Author	Alexander, F.; Davies, M.E.
	Title	Studies on vitamin B12 in the horse			Type	Journal Article
	Year	1969	Publication	The British veterinary journal	Abbreviated Journal	Br. Vet. J.
	Volume	125	Issue	4	Pages	169-176
	Keywords	Animals; Biological Assay; Cattle; Chickens; Feces/analysis; Horses/metabolism; Humans; Lactobacillus/metabolism; Rabbits; Rats; Sheep; Urine/analysis; Vitamin B 12/analysis
	Abstract
	Address
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0007-1935	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:5814055			Approved	no
	Call Number	refbase @ user @			Serial	116
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	Author	Nicol, C.J.; Brown, S.N.; Glen, E.; Pope, S.J.; Short, F.J.; Warriss, P.D.; Zimmerman, P.H.; Wilkins, L.J.
	Title	Effects of stocking density, flock size and management on the welfare of laying hens in single-tier aviaries			Type	Journal Article
	Year	2006	Publication	British poultry science	Abbreviated Journal	Br Poult Sci
	Volume	47	Issue	2	Pages	135-146
	Keywords	Animal Husbandry/methods; Animal Welfare; Animals; Body Constitution/physiology; Chickens/physiology; Crowding; Feathers; Female; *Housing, Animal/standards; Mortality; Organ Size; Oviposition/physiology; Population Density; Population Dynamics; Random Allocation
	Abstract	Management practices, stocking rate and flock size may affect laying hen welfare but there have been few replicated studies in commercial non-cage systems that investigate this. This study used a broad range of physical and physiological indicators to assess the welfare of hens in 36 commercial flocks. Six laying period treatments were examined with each treatment replicated 6 times. It was not possible to randomly allocate treatments to houses, so treatment and house were largely confounded. Three stocking rates were compared: 7 birds/m(2) (n = 2450), 9 birds/m(2) (n = 3150) and 12 birds/m(2) in either small (n = 2450) or large (n = 4200) flocks. In addition, at 12 birds/m(2), in both small and large flocks, birds were subjected to either standard (SM) or modified (MM) management. MM flocks had nipple drinkers and no nest-box lights. Bone strength, fracture incidence, heterophil:lymphocyte (H:L) ratio, live weight, organ weights, serum creatine, serum osmolality, muscle pH and faecal corticosterone were measured on samples of birds at the end of the rearing period and at the end of lay. During the laying period, mortality, production and integument condition were recorded at regular intervals. Birds housed at 9 birds/m(2) had higher mortality than birds housed at 12 birds/m(2) by the end of lay, but not higher than birds housed at 7 birds/m(2). Birds housed at 7 and 9 birds/m(2) had lower percent liver weight, and worse plumage condition than most of the 12 bird/m(2) treatments. Modified management tended to improve plumage condition. There were no clear effects of flock size on the welfare indicators recorded. At the end of the rearing period fracture incidence was almost negligible and H:L ratio was within a normal range. By the end of lay fracture incidence was 60% and H:L ratio was high, with no treatment effect for either measure. This, together with information on faecal corticosterone, feather loss and mortality, suggests that the welfare of birds in all treatments was relatively poor by the end of lay.
	Address	School of Veterinary Science, University of Bristol, Langford House, Langford BS40 5DU and ADAS Gleadthorpe, Meden Vale, Mansfield, Notts NG20 9PF, England. c.j.nicol@bristol.ac.uk
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0007-1668	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:16641024			Approved	no
	Call Number	refbase @ user @			Serial	65
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	Author	Haslam, S.M.; Brown, S.N.; Wilkins, L.J.; Kestin, S.C.; Warriss, P.D.; Nicol, C.J.
	Title	Preliminary study to examine the utility of using foot burn or hock burn to assess aspects of housing conditions for broiler chicken			Type	Journal Article
	Year	2006	Publication	British poultry science	Abbreviated Journal	Br Poult Sci
	Volume	47	Issue	1	Pages	13-18
	Keywords	Animal Husbandry; Animal Welfare; Animals; Chickens; Dermatitis, Contact/diagnosis/pathology/veterinary; Feathers; Female; Foot Diseases/diagnosis/pathology/veterinary; Housing, Animal; Male; Poultry Diseases/diagnosis/*pathology; Skin/pathology
	Abstract	1. Eleven broiler chicken farms, representing 4 production system types, were visited during the last 5 d of the flock cycle: bird and flock details were recorded. Litter friability was assessed at 9 sites within the house, atmospheric ammonia was measured at three sites and bird cleanliness was assessed on a numerical rating scale. 2. For these flocks, hock burn, foot burn and breast burn were measured at the processing plant by standardised assessors. 3. Significant correlations were identified between the percentage of birds with foot burn and average litter score, average house ammonia concentrations and feather score. 4. No correlation was found between the percentage of birds with hock burn or breast burn and average litter scores, average ammonia concentrations or feather score. 5. No correlation was found between stocking density and foot burn, hock burn or breast burn.6. If confirmed, these findings may have implications for the draft EU Broiler Directive, for which it is proposed that permitted stocking density on farm may be determined by the incidence and severity of contact dermatitis measured on plant.
	Address	Division of Farm Animal Science, School of Veterinary Science, University of Bristol, Bristol, England. sue.haslam@bris.ac.uk
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0007-1668	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:16546791			Approved	no
	Call Number	refbase @ user @			Serial	66
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	Author	Nicol, C.J.; Potzsch, C.; Lewis, K.; Green, L.E.
	Title	Matched concurrent case-control study of risk factors for feather pecking in hens on free-range commercial farms in the UK			Type	Journal Article
	Year	2003	Publication	British poultry science	Abbreviated Journal	Br Poult Sci
	Volume	44	Issue	4	Pages	515-523
	Keywords	Aggression; Analysis of Variance; Animal Husbandry/methods; Animals; Case-Control Studies; Chickens/physiology; Feathers; Female; Multivariate Analysis; Odds Ratio; Regression Analysis; Species Specificity
	Abstract	1. The aim of the study was to compare the management and husbandry of free-range flocks in the UK where feather pecking was either present (case) or absent (control). 2. One hundred flocks were enrolled into a concurrent case-control study: 50 where birds had recently started feather pecking, and 50 matched control flocks where birds of the same age had not started feather pecking. 3. Information was obtained from a detailed interview with the flock manager, and by direct inspection of the flock, house and range. 4. Initial univariate analyses revealed that case flocks were more likely to comprise ISA Brown than Lohmann, were more likely to be restricted from litter areas to prevent floor eggs, and were less likely to use the outside range. 5. Cluster analysis indicated that feather pecking was not associated with any particular husbandry system. 6. The only influential risk factor significant in the multivariable conditional logistic regression analysis was use of the outdoor range. The risk of feather pecking was reduced 9-fold in flocks where more than 20% of birds used the range on sunny days (odds ratio = 0.12). Use of the range was positively associated with the presence of trees and/or hedges on the range.
	Address	Department of Clinical Veterinary Science, University of Bristol, England. c.j.nicol@bris.ac.uk
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0007-1668	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:14584840			Approved	no
	Call Number	refbase @ user @			Serial	79
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