Complexity and Colour Preferences in Chicks of Different Ages

Berryman, Julia C.; Fullerton, Clare; Sluckin, W.

doi:10.1080/14640746908401819

Cited by 18 publications

(6 citation statements)

References 11 publications

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“…Chicks which are approximately 1-week-old prefer complex to simple visual stimuli (Berryman, Fullerton, & Sluckin, 1971;Dutch, 1969). It is possible that this preference may only be expressed after a certain degree of maturation of the visual system has been achieved.…”

Section: Discussionmentioning

confidence: 99%

“…Another factor that must be taken into account in considering the emerging preference relates to the differences in complexity of the jungle fowl and the red box. Chicks which are approximately 1-week-old prefer complex to simple visual stimuli (Berryman, Fullerton, & Sluckin, 1971;Dutch, 1969). It is possible that this preference may only be expressed after a certain degree of maturation of the visual system has been achieved.…”

Section: Discussionmentioning

confidence: 99%

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Effects of early experience on the development of filial preferences in the domestic chick

Bolhuis

Johnson

Horn

1985

Developmental Psychobiology

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Factors affecting the development of filial preferences in chicks were investigated. Four groups of chicks were hatched and maintained in darkness. When the chicks were 20-hr old, three of these groups were exposed to an overhead light ("primed") for .5 h. When 24-hr old, all groups were placed in running wheels for 2 hr. While in the wheels one group was exposed to a visually complex pattern, one group to diffuse overhead light, and the remaining two groups (one primed and one not primed) were in darkness. All chicks were then returned to a dark incubator until their preference for a red box or a stuffed jungle fowl was measured in a simultaneous choice test either 2 hr (Test I) or 24 hr (Test II) later. At Test I the chicks which had been exposed to the complex visual pattern showed a significant preference for the fowl. Chicks in the other groups showed no preference. At Test II all groups showed a significant preference for the fowl. The results of a second experiment suggested that the later emerging preference was related to the chicks experience in the running wheel. It was concluded that the preference for the fowl will develop in entirely dark-reared chicks that are allowed a period of time in a running wheel, but that this preference will appear earlier in chicks which have had experience of a complex visual pattern.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Effects of early experience on the development of filial preferences in the domestic chick

Bolhuis

Johnson

Horn

1985

Developmental Psychobiology

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“…As indicated above, blind chicks may suffer increased stress from numerous sources; they may experience difficulties feeding, have a reduced ability to express social behaviour, and have difficulty navigating their environment. In addition, chickens are known to display a preference for visual complexity (Berryman et al, 1971), and as they are normally highly visual animals, it is likely that lack of sight will mean that the birds will miss a number of positive experiences which serve to enrich the life of a normal chick. In light of this, it is possible that the abnormal behaviours observed in the blind chicks are attempts to increase stimulation that is lacking from their external environment.…”

Section: Danish Centre For Bioethics and Risk Assessmentmentioning

confidence: 99%

Investigating the importance of vision in poultry: Comparing the behaviour of blind and sighted chickens

Collins

Forkman

Kristensen

et al. 2011

Applied Animal Behaviour Science

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Behaviour in poultry is predominately visually mediated and vision is important to the welfare of poultry. The relationship between vision, behaviour and welfare has primarily been investigated in relation to artificial lighting. Genetically blind chickens provide an alternative experimental paradigm for further investigating the importance of sight. The primary aim of the study was to investigate the importance of vision in the development and maintenance of behaviour in poultry by comparing the behaviour of 20 genetically blind chicks with that of 20 normally sighted chicks. Behaviour was assessed in a social isolation test post hatch and at 28-30 days old, and in the chicks' 8 home pens (4 blind; 4 sighted) at 42 days old. All birds were weighed at 0, 14, 28 and 42 days old. Analysis of home pen behaviour indicated that, compared to normally sighted chicks, blind chicks displayed increased preening and sitting behaviour, but reduced environmental pecking, behavioural synchrony and group aggregation. Blind chicks also exhibited abnormal behavioursnamely air pecking, star gazing, circle walking. Blind chicks weighed less than sighted chicks at 14, 28 and 42 days of age and appeared to be less stressed by social isolation compared to sighted chicks. It was concluded that blind chicks, as expected, have difficulty expressing behaviours that are normally visually mediated, and that their welfare is likely to be compromised as a result.

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“…For example, rhesus monkeys worked harder to view complex rather than simple projected images (Humphrey, 1972). More specifically, chicks approached cards with complex patterns more than plain or simply patterned ones (Berryman, Fullerton, & Sluckin, 1971;Dutch, 1969). Similarly, televised images of screensavers were more attractive to chicks than blank, illuminated monitors (Jones et al, 1996.…”

Section: Experiments 5: Complex Vs Simple Imagesmentioning

confidence: 99%

Domestic Chicks’ Attraction to Video Images: Effects of Stimulus Movement, Brightness, Colour and Complexity

Clarke¹,

Jones²

2000

International Journal of Comparative Psychology

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Video images of screensavers attract domestic chicks. This study identified their attractive attributes. One focal chick in groups of three was observed for 5 min daily on 10 consecutive days from 2 days of age. Chicks spent little time in the end zones of the home box in the absence of video stimulation (Experiment 1). Videos differing in one attribute were then presented simultaneously at opposite ends of the cage. Chicks spent longer near moving than still videos (Experiment 2), bright than dull videos (Experiment 3), coloured than black-and-white videos (Experiment 4), a complex "Fish" screensaver than a simple "Square" screensaver (Experiment 5), and a more complex cartoon than the Fish screensaver (Experiment 6). Repeated exposure increased approach and preferences were strongest for complex stimuli.

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Complexity and Colour Preferences in Chicks of Different Ages

Cited by 18 publications

References 11 publications

Effects of early experience on the development of filial preferences in the domestic chick

Effects of early experience on the development of filial preferences in the domestic chick

Investigating the importance of vision in poultry: Comparing the behaviour of blind and sighted chickens

Domestic Chicks’ Attraction to Video Images: Effects of Stimulus Movement, Brightness, Colour and Complexity

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