Results 191 to 200 of about 25,800 (236)

Testicular chromosomes of Gallus domesticus

Chromosoma, 1964
Testes of Gallus domesticus were studied (a) by light microscopy after hypotonic treatment followed by acetic-alcohol fixation and airdrying and (b) by electron microscopy of osmium-fixed, araldite-embedded material, some of which was pretreated with hypotonic solutions.
E H, FORD, D H, WOOLLAM
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Intrapulmonary chemoreceptors in Gallus domesticus

Respiration Physiology, 1974
Abstract White Leghorn male chickens were anesthetized with sodium pentobarbitone (30 mg·kg−1) and unidirectionally artificially ventilated (2 L·min−1). Action potentials from 35 vagal afferent fibers in 30 animals were recorded extracellularly from cell bodies in the nodose ganglion using tungsten microelectrodes.
J L, Osborne, R E, Burger
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Taste bud development in chickens (Gallus gallus domesticus)

The Anatomical Record, 1987
AbstractOral epithelium in the anterior mandibular glands region was examined in embryonic, hatchling, and mature chickens to establish the timing of morphologic events during taste bud ontogeny. Hematoxylin‐and‐eosin‐stained sections (10 μm) from 27 Anak (broiler breed) chickens were examined serially, and buds were quantified at 16–20 days of ...
J R, Ganchrow, D, Ganchrow
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Neurogenic inflammation in the chicken (Gallus gallus var domesticus)

Comparative Biochemistry and Physiology Part C: Comparative Pharmacology, 1993
1. Neurogenic inflammation has been studied in the anaesthetized adult hen using a variety of different stimuli. 2. Plasma extravasation was produced following antidromic stimulation of the external mandibular ramus of the trigeminal nerve which innervates the skin at the angle of the jaw and the anterior part of the wattle. 3.
M J, Gentle, L N, Hunter
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Dietary thyroxine induces molt in chickens (Gallus gallus domesticus)

Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology, 2007
Thyroxine increases during a molt in wild and captive birds, and thyroidectomy prevents induction of molt. This trial examined the effect of dietary thyroxine on molt induction molt in chickens (laying hens, 59 weeks of age). In a completely randomized design (n=15 hens/replication; 6 replications/treatment), hens were randomly assigned to either a ...
P D, Bass, D M, Hooge, E A, Koutsos
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Ontogeny of magnetoreception in chickens (Gallus gallus domesticus)

Journal of Ethology, 2014
Chickens are precocial birds, capable of moving independently from within a few hours of hatching, and thus provide a useful model to investigate the development of magnetoreception in young birds. Chicks show some sharply-timed behavioural changes at around 11 days of age that may be indicative of improvements in navigation ability around this age. We
Ursula Munro, Penny Luu, Lou DeFilippis, Rafael Freire   +3 more
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Karyotype studies on Gallus domesticus

Chromosoma, 1965
Using a colchicine, hypotonic citrate, air-drying technique clear metaphase figures have been obtained from various tissues of the chick embryo. Karyotypes of both male and female avian cells have been prepared and clearly show that the sex chromosome constitution of the female is ZW and that the total chromosome number is at least 78.
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Mast cells in the ovary ofGallus Gallus domesticus

British Poultry Science, 1988
1. Histamine or mast cells are involved in mammalian ovary function. Their role in the avian ovary is not known. In the present study mast cell distribution in the ovary of the domestic fowl was studied. 2. Mast cells were distributed throughout the ovary, both in the stroma of medullary and cortical regions as well as in the thecae of normal and ...
S K, Gupta, A B, Gilbert
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Bantams (Gallus gallus domesticus) also perceive a reversed Zöllner illusion

Animal Cognition, 2012
Although pigeons have been shown to be susceptible to several size and length illusions, other avian species have not been tested intensively for illusory perception. Here we report how bantams perceive the Zöllner figure, in which parallel lines look nonparallel due to short crosshatches superimposed on the lines. Watanabe et al.
Sota, Watanabe, Noriyuki, Nakamura, Kazuo, Fujita   +2 more
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Physiological changes during tonic immobility in Gallus gallus var domesticus

Physiology & Behavior, 1989
Physiological parameters were examined in the hen in response to the induction of tonic immobility (TI). The induction of TI was associated with EEG arousal, low shank temperature and elevated heart rate. However, shortly after the adoption of TI, the EEG showed a predominantly slow-wave deactivated pattern, muscle tone fell and sympathetic nervous ...
M J, Gentle, R B, Jones, S C, Woolley
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