The effects of early post-hatching changes of imprinting object on the pattern of monocular/unihemispheric sleep of domestic chicks

2006 ◽  
Vol 170 (1) ◽  
pp. 23-28 ◽  
Author(s):  
D BOBBO ◽  
G VALLORTIGARA ◽  
G MASCETTI
Keyword(s):  
Unihemispheric Sleep ◽  
Domestic Chicks

Effects of social interaction on monocular/unihemispheric sleep in male and female domestic chicks

2006 ◽  
Vol 73 (3) ◽  
pp. 213-219 ◽  
Author(s):  
Daniela Bobbo ◽  
Giorgio Vallortigara ◽  
Gian G. Mascetti
Keyword(s):  
Social Interaction ◽  
Male And Female ◽  
Unihemispheric Sleep ◽  
Domestic Chicks

Naïve 3-day-old domestic chicks (Gallus gallus) are attracted to discrete acoustic patterns characterizing natural vocalizations.

2019 ◽  
Vol 133 (1) ◽  
pp. 118-131 ◽  
Author(s):  
Matteo De Tommaso ◽  
Gisela Kaplan ◽  
Cinzia Chiandetti ◽  
Giorgio Vallortigara
Keyword(s):  
Gallus Gallus ◽  
Domestic Chicks

Trypanosoma ontarioensis n.sp. and T. paddae from Corvus brachyrhynchos brachyrhynchos in Ontario, Canada, with notes on the biology of T. ontarioensis n.sp.

1982 ◽  
Vol 60 (9) ◽  
pp. 2107-2115 ◽  
Author(s):  
Patrick T. K. Woo ◽  
Cheryl M. Bartlett
Keyword(s):  
Agar Medium ◽  
Gallus Domesticus ◽  
Blood Agar ◽  
Melopsittacus Undulatus ◽  
Ruffed Grouse ◽  
Bonasa Umbellus ◽  
Southern Ontario ◽  
Corvus Brachyrhynchos ◽  
Domestic Chicks ◽  
Serinus Canarius

Two morphologically distinct trypanosomes (Trypanosoma ontarioensis n.sp. and Trypanosoma paddae) were found by the haematocrit centrifuge technique in the blood of 53% (64 of 121) of Corvus brachyrhynchos brachyrhynchos wintering in southern Ontario. Trypanosoma ontarioensis n.sp. is a small trypanosome with subterminal kinetoplast. It is monomorphic and not host specific. It was readily cultured in diphasic blood-agar medium. Two-week cultures were infective and contained dividing sphaeromastigotes, epimastigotes, and trypomastigotes. Blood trypomastigotes were detected in low numbers in the blood of inoculated birds (Corvus brachyrhynchos brachyrhynchos, Bonasa umbellus, Gallus domesticus, Melopsittacus undulatus, and Serinus canarius) at 28 and 48 days postinfection. The crows, ruffed grouse, and domestic chicks were laboratory raised while the budgerigars and canaries were from pet stores. One canary that was further examined at 180, 360, 540, 730, and 910 days postinfection still had detectable numbers of trypanosomes in its blood.

scholarly journals Daytime micro-naps in a nocturnal migrant: an EEG analysis

2008 ◽  
Vol 5 (1) ◽  
pp. 77-80 ◽  
Author(s):  
T Fuchs ◽  
D Maury ◽  
F.R Moore ◽  
V.P Bingman
Keyword(s):  
Brain Activity ◽  
Sleep Loss ◽  
Eeg Analysis ◽  
Observable Effect ◽  
Brain Response ◽  
Night Time ◽  
Avian Migration ◽  
Unihemispheric Sleep ◽  
Daytime Behaviour ◽  
Behavioural Evidence

Many species of typically diurnal songbirds experience sleep loss during the migratory seasons owing to their nocturnal migrations. However, despite substantial loss of sleep, nocturnally migrating songbirds continue to function normally with no observable effect on their behaviour. It is unclear if and how avian migrants compensate for sleep loss. Recent behavioural evidence suggests that some species may compensate for lost night-time sleep with short, uni- and bilateral ‘micro-naps’ during the day. We provide electrophysiological evidence that short episodes of sleep-like daytime behaviour (approx. 12 s) are accompanied by sleep-like changes in brain activity in an avian migrant. Furthermore, we present evidence that part of this physiological brain response manifests itself as unihemispheric sleep, a state during which one brain hemisphere is asleep while the other hemisphere remains essentially awake. Episodes of daytime sleep may represent a potent adaptation to the challenges of avian migration and offer a plausible explanation for the resilience to sleep loss in nocturnal migrants.

Spontaneous generalization of abstract multimodal patterns in young domestic chicks

2017 ◽  
Vol 20 (3) ◽  
pp. 521-529 ◽  
Author(s):  
Elisabetta Versace ◽  
Michelle J. Spierings ◽  
Matteo Caffini ◽  
Carel ten Cate ◽  
Giorgio Vallortigara
Keyword(s):  
Domestic Chicks

The Effects of Prior Exposure To Light On the Imprinting Process in Domestic Chicks

Behaviour ◽  
1972 ◽  
Vol 42 (3-4) ◽  
pp. 279-290 ◽  
Author(s):  
P.P.G. Bateson ◽  
Averell A.P. Wainwright
Keyword(s):  
White Light ◽  
Visual Pathways ◽  
Prior Exposure ◽  
Constant Light ◽  
Dark Control ◽  
Clear Preference ◽  
Domestic Chicks ◽  
New Apparatus ◽  
Flashing Light ◽  
First Time

AbstractDomestic chicks were placed in isolation under a constant white light for 30 minutes. Afterwards these birds and a group previously kept in the dark were trained with a Red or a Yellow flashing light for 45 minutes. Subsequently all chicks were given a choice between familiar and unfamiliar flashing lights in some new apparatus which is described in detail for the first time. The chicks exposed to constant light showed a clear preference for the flashing light with which they had been trained whereas the Dark control chicks did not. It is suggested that the constant light activated their visual pathways enabling the Light-exposed chicks to learn more than the Dark control chicks during the imprinting procedure.

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