Results 221 to 230 of about 44,236 (261)

A Diprosopus in a Domestic Chicken Embryo

Avian Diseases, 1993
History. A dead 17-day-old chicken embryo was detected during routine work on virus cultivation in chicken embryos. The embryos were obtained from white leghorn hens from Northern Hatcheries, Ludhiana, India. The birds at the hatchery were kept under a deep-litter system with adequate sanitary provisions.
S S, Saini, R S, Khehra, M S, Kwatra
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Sex determination in the chicken embryo

Journal of Experimental Zoology, 2001
AbstractThe chicken embryo represents a suitable model for studying vertebrate sex determination and gonadal sex differentiation. While the basic mechanism of sex determination in birds is still unknown, gonadal morphogenesis is very similar to that in mammals, and most of the genes implicated in mammalian sex determination have avian homologues ...
C A, Smith, A H, Sinclair
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Emergence of Hearing in the Chicken Embryo

Journal of Neurophysiology, 2006
It is commonly held that hearing generally begins on incubation day 12 (E12) in the chicken embryo ( Gallus domesticus). However, little is known about the response properties of cochlear ganglion neurons for ages younger than E18. We studied ganglion neurons innervating the basilar papilla of embryos (E12–E18) and hatchlings (P13–P15). We asked first,
Timothy A, Jones, Sherri M, Jones, Kristina C, Paggett   +2 more
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Chemosensory Learning in the Chicken Embryo

Physiology & Behavior, 1998
Prenatal chemosensory learning has been demonstrated in mammals, fish, amphibians, and insects, but not birds, although there is evidence of the avian's ability to learn auditory stimuli before hatching. This paper examines how exposure to a chemosensory stimulus (strawberry) prior to hatching affects subsequent chemosensory preferences of newly ...
Sneddon, H., Hadden, R., Hepper, Peter
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Aerobic scope in chicken embryos

Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology, 2017
We investigated the aerobic scope of chicken embryos, that is, the margin of increase of oxygen consumption ( [Formula: see text] ) above its normal value. [Formula: see text] was measured by an open-flow methodology at embryonic ages E3, E7, E11, E15, E19 and at E20 at the internal (IP) and external pipping (EP) phases, at the normal incubation ...
Satoko T, Ide, Ryoji, Ide, Jacopo P, Mortola   +2 more
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Monsters in Domestic Chicken Embryos

Avian Diseases, 1983
Most malformations of birds are classified either as genetic or unknown etiology or as nutritional and toxic etiology (2). The present paper records three rare monsters of domestic fowl. Four thousand two hundred and thirty-five dead-in-shell embryos of two strains of white leghorn (Pbl and Pb2) were examined for malformations from November 20, 1981 ...
J S, Sandhu, G S, Brah
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The effect of thalidomide in chicken embryos

Birth Defects Research Part A: Clinical and Molecular Teratology, 2009
AbstractEarly in the history of the thalidomide disaster, chick embryos were “eliminated” as useful in the study of thalidomide. One reason for that conclusion was that many of the early experiments were flawed. We employed a number of experiments to expose chick embryos to thalidomide.
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CRISPR/Cas9 in the Chicken Embryo

2017
Genome editing is driving a revolution in the biomedical sciences that carries the promise for future treatments of genetic diseases. The CRISPR/Cas9 system of RNA-guided genome editing has been successfully applied to modify the genome of a wide spectrum of organisms.
Valérie, Morin, Nadège, Véron, Christophe, Marcelle   +2 more
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A model for aganglionosis in the chicken embryo

Journal of Pediatric Surgery, 1989
We investigated the ability of neural crest (NC) cells to colonize hindgut, which had remained aneuronal due to bowel transection in ovo at an early stage. The fact that the bowel remained aneuronal proved that the "sacral" NC does not provide precursor cells for enteric neurons in the hindgut.
J H, Meijers, D, Tibboel, A W, van der Kamp, I C, van Haperen-Heuts, J C, Molenaar   +4 more
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Chicken Embryo Lethal Orphan Virus: Virus Localization and Histopathology in Chicken Embryos

Avian Diseases, 1969
12. Yamamoto, R., and C. H. Bigland. Egg transmission of Mycoplasma meleagridis. Poultry Sci. 45: 1245-1257. 1966. 13. Yamamoto, R., and H. B. Ortmayer. Localization and persistence of avian Mycoplasma in the genital system of the mature turkey. J.A.V.M.A. 150: 1331. 1967. 14. Yamamoto, R., H. B. Ortmayer, C. H. Bigland, M. L. Seely, and R. E. Corstvet.
V, Jasty, P W, Chang, L T, Miller, V J, Yates   +3 more
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