Behavioral Responses of Hens to Simulated Dawn and Dusk Periods

Tanaka, Toshio; Hurnik, J. F.

doi:10.3382/ps.0700483

Cited by 18 publications

(11 citation statements)

References 8 publications

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“…Despite the absence of lighting, birds remained active, sought a resting site and prepared for night time roosting. If the inclusion of ramps is able to decrease the events that lead to keel bone damage during full light only, there may be some benefit in prolonging the transitional dusk phase (though only a minimum of light available) and providing more time for the birds to settle down, as suggested by Tanaka and Hurnik (1991) who found a gradual change of illumination to result in fewer birds being active during the dark phase. Also, our results revealed that most of the falls occurred from higher tiers of the aviary (approximately 60% of all falls occurring from section three), indicating that not only light intensity, but also particular areas (higher tiers and perches) at particular times of the day (transitional dusk and dark phase) pose a potentially greater risk to fall.…”

Section: Aviary Design and Behaviormentioning

confidence: 91%

Modification of aviary design reduces incidence of falls, collisions and keel bone damage in laying hens

Stratmann

Fröhlich

Gebhardt-Henrich

et al. 2015

Applied Animal Behaviour Science

102

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Section: Aviary Design and Behaviormentioning

confidence: 91%

Modification of aviary design reduces incidence of falls, collisions and keel bone damage in laying hens

Stratmann

Fröhlich

Gebhardt-Henrich

et al. 2015

Applied Animal Behaviour Science

102

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“…One group of 437 birds was transferred to an aviary equipped with nests, ambulation area, and three tiers of feeders and waterers (Tanaka and Hurnik, 1991). All birds were hatched in a commercial hatchery and transferred to the Arkell Poultry Research Station of the University of Guelph at 1 day of age to be raised in floor pens equipped with roosts.…”

Section: Introduction Materials and Methodsmentioning

confidence: 99%

Research Note: The Behavior of Young Layers During the First Two Weeks in Aviary and Battery Cages

Tanaka

Hurnik

1991

Poultry Science

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Observations were collected from young layers housed in an aviary (437 birds) and in battery cages (8 out of 112 cages per day, 3 birds in each). Direct visual observations using scanning techniques were conducted for the first 2 wk, 2 h/day (1000 to 1200 h or 1300 to 1500 h on alternate days). In the aviary, a significant positive correlation was detected between the number of birds occupying the central part of the pen equipped with feeders and waterers, and number of birds engaged in eating and drinking (P less than .001). There were no significant differences between morning and afternoon in the numbers of birds located at each position of the aviary. However, comfort behaviors were more frequent in the afternoon. Feather pecking in the aviary was rare (less than .1%) and did not appear to be stereotypic. In the battery cages, feather pecking was more frequent (4.1%). Comfort behaviors in the cages were rare (.4%), and the range of activities was also limited. These results indicate that the aviary provides a more comfortable environment for the birds than cages, even when the cage housing density was lower than recommended for general commercial units.

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“…At 16w pullets were transferred into thc laying house and given 84 h of light per day. Light was successively increased to 15 h per day at 30 w. In order to prepare birds for certain activities in periods of light and dark (Tanaka & Hurnik, 1991), e.g. to facilitate the finding of food and water and calmly finding their way up to the perches of the resting top tier, the light was turned on/off according to a special procedure.…”

Section: Rearing Lighting and Feedingmentioning

confidence: 99%

Aviary Systems and Conventional Cages for Laying Hens: Effects on Production, Egg Quality, Health and Bird Location in Three Hybrids

Abrahamsson

Tauson

1995

Acta Agriculturae Scandinavica, Section A — Animal Science

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Scandinavian University Press.In two experiments, a total of 4346 laying hens housed in battery cages, with three hens per cage (C), and in two aviary systems, both with tiered wire floors and litter (Lovsta with two tiers (L) and Marielund with three tiers (M)), were used for studies on production, egg quality, health, plumage and foot condition, bone strength and bird location. Three hybrids were used: Lohmann Selected Leghorn (LSL) were kept in all three systems, Dekalb XL (DK) were kept in both aviaries and Lohmann Brown (LB) in M only. Production and feed conversion in M were inferior but not significantly different from C but significantly better than in L. Proportions of dirty eggs were significantly higher in the avaries. No significant differences were found in interior egg quality traits between keeping systems, LSL showed higher production and better feed conversion than the other hybrids and a tendency for a lower proportion of mislaid eggs. Mortality varied considerably between the aviary pens, reaching 35% in LB mainly owing to cannibalism and salpingitis. Keel bone lesions and bumble foot appeared in the aviaries, while toe pad hyperkeratosis was observed in C. Hens in aviaries had significantly stronger bones (tibia and humerus) and showed more wounds from pecks, inferior plumage condition and dirtier feet than in C. LSL had more bumble foot injuries than LB but better plumage condition than DK. The birds used the different parts in the aviaries well, especially the perches on the resting top tier during the night.

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Behavioral Responses of Hens to Simulated Dawn and Dusk Periods

Cited by 18 publications

References 8 publications

Modification of aviary design reduces incidence of falls, collisions and keel bone damage in laying hens

Modification of aviary design reduces incidence of falls, collisions and keel bone damage in laying hens

Research Note: The Behavior of Young Layers During the First Two Weeks in Aviary and Battery Cages

Aviary Systems and Conventional Cages for Laying Hens: Effects on Production, Egg Quality, Health and Bird Location in Three Hybrids

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