... ) with a partial septum only and no AVCS (negative control) and with chicken ( Gallus gallus ) (septum and AVCS, positive control). Optical mapping of the electrical impulse in the crocodile and chicken showed a similar developmental specialization that coincided with full ventricular septation, whereas...

... morphological modifications induced by O 2 supply limitation. Thus, we hypothesized that hypoxia during the embryonic phase of parabronchial development induces morphological changes that remain after hatching. To test this hypothesis, chicken embryos were incubated entirely (21 days) under normoxia...

... for each cardiac chamber of the white leghorn chicken. Computational modelling was then used to establish a relationship between CRU distance and cell activation time in the avian heart. Our data suggest that cSR clustered close together along the Z-line is vital for rapid propagation of the Ca 2+ signal...

...-term stress. Chickens provide a unique model to study stress effects in the epigenome of red blood cells (RBCs), a cell type of easy access and nucleated in birds. The present study investigated whether two different rearing conditions in chickens can be identified by looking at DNA methylation...

... (locomotion, eating) and inactive (digesting, thermoregulating)behaviours exhibited by domestic chickens. We also compared this technique with the more established heart-rate method for estimating energy expenditure. During activity, the error of estimation using body acceleration was very similar...

... 2007 © The Company of Biologists Limited 2007 2007 temperature egg production lipid allocation very low density lipoprotein (VLDL) food intake zebrafinch chicken Reproduction in seasonally breeding animals is generally timed such that the period of offspring care coincides...

... the domestic chicken, Gallus gallus L., were mounted in Ussing chambers where several substrates/inhibitors of renal organic anion transporters were tested for the sidedness and specificity of their effects on transepithelial urate transport. Transepithelial electrical resistance,electrical potential...

...Alisen E. Vetter; Scott M. O'Grady SUMMARY The uterine (shell gland) epithelium from the domestic chicken was mounted in Ussing chambers, bathed in symmetric avian saline solution on both apical and basolateral aspects and voltage clamped at 0 mV. The epithelium exhibited a basal short circuit...

... that standing gradients of oxygen generated within the tissue may serve as a spatial cue for organelle degradation. To examine this possibility, we incubated fertilized chicken eggs under hyperoxic (50% O 2 ) or normoxic (21% O 2 )conditions. Hyperoxic treatment was initiated on the seventh day of embryonic...

... ). Cellular localization of brain-derived neurotrophic factor and neurotrophin-3 mRNA expression in the early chicken embryo. Eur. J. Neurosci . 5 , 1 –14. Johnson, A. L. ( 1996 ). The avian ovarian hierarchy: a balance between follicle differentiation and atresia. Poultry Avian Biol. Rev . 7...

...Ze-Lian Qin; Hiroko Nishimura ABSTRACT Many bird species show the spontaneous development of high arterial pressure and vascular lesions in the aorta and other large arteries. In chickens, arterial pressure tends to increase with age/maturation (particularly in males), and subendothelial...

...Geoffrey F. Birchard; Carl L. Reiber ABSTRACT Oviparous amniotes exchange respiratory gases across a specialized vascular membrane, the chorioallantois. Although many investigations into the physiology of amniote eggs, particularly those of the chicken, have been carried out...

... the wing’s surface, and (2) to measure airspeed by detecting the frequency of vibration of the secondary flight feathers. 3 3 1993 © 1993 by Company of Biologists 1993 feathers mechanoreceptors flight birds stall airspeed filoplumes sensory chicken Gallus domesticus...

...Geoffrey F. Birchard; Carl L. Reiber ABSTRACT Oviparous amniotes exchange respiratory gases across a specialized vascular membrane, the chorioallantois. Although many investigations into the physiology of amniote eggs, particularly those of the chicken, have been carried out...

... of strain but contradict earlier data suggesting that strain magnitudes do not change significantly with age or exercise. 11 5 1992 © 1992 by Company of Biologists 1992 biomechanics bone strain remodelling strenuous exercise chicken Bone appears to be sensitive to dynamic...

...D. Nguyen Phu; K. Yamaguchi; P. Scheid; J. Piiper ABSTRACT The specific conductance (G) for O 2 transfer by red blood cells (RBCs) of chicken and muscovy duck was measured using the experimental (stopped-flow) and analytical techniques (RBC model) previously applied to human RBC ( Yamaguchi, Nguyen...

... by Company of Biologists 1985 Ventilation respiratory pattern chicken hyperthermia When exposed to hot environments, birds depend mostly on respiratory evaporative cooling in order to maintain body temperature since cutaneous evaporation is limited for most species because they lack sweat...