Stimulus luminance and the spatial acuity of domestic fowl (Gallus g. domesticus)

A comparative study of stimulus-specific pupil responses in the domestic fowl (Gallus gallus domesticus) and the human

Pupil responses triggered by specific stimulus attributes such as spatial structure, colour and light flux changes were measured in eight domestic fowl. Comparative experiments were also carried out in human subjects. The results were unexpected in that large increments in light flux caused only small constrictions of the pupil. A red stimulus, on the other hand, caused a relatively large pupil...

Effects of Marks on Aggression and Stress in the Domestic Fowl (gallus Gallus Domesticus)

Title Thesis: EFFECTS OF MARKS ON AGGRESSION AND STRESS IN THE DOMESTIC FOWL (GALLUS GALLUS DOMESTICUS) Rachel Lynn Dennis, Master of Science, 2004 Thesis Directed By: Associate Professor, Dr. Inmaculada Estevez, Department of Animal and Avian Sciences Animals are marked for identification in a range of experiments from behavior and wildlife management, to reproduction and pharmacological studi...

Measuring and modelling the spatial contrast sensitivity of the chicken (Gallus g. domesticus)

The spatial contrast sensitivity (CSF) of the chicken has been measured using a behavioural technique. The results obtained show that spatial vision in this species is relatively poor compared with the human observer. For a visual stimulus luminance of 16 c dm(-2), the upper frequency limit of spatial vision in the chicken (acuity) was found to be about 7.0 c deg(-1), with peak spatial vision o...

Cytology of the glands associated with the alimentary tract of domestic fowl, Gallus domesticus.

Esophagotomy in a domestic fowl: a rare case report

Background: Foreign body in esophagus in birds is rarely reported in literature. Most common site of foreign body in birds is proventriculus and ventriculus. The purpose of this study is to discuss the diagnosis of a large sharp foreign body in the distal third of the neck by plain radiography and its retrieval through esophagotomy and subsequent survival of the fowl. C...