Results 231 to 240 of about 101,159 (275)
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Ventilatory chemosensitivity in the chick embryo
Respiratory Physiology & Neurobiology, 2003In the externally pipped chicken embryo, oxygen consumption through the chorioallantoic membrane (VO2CAM) ranged between 2 and 55% (mean approximately 24%) of that through the lungs (VO2lung). Hypercapnia (5'-10' of 2, 5, or 8% CO2) or mild hypoxia (15% O2) had minor effects on VO2, whereas moderate or severe hypoxia (10-5% O2) caused large drops of ...
Tara M Menna, Jacopo P. Mortola
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RADIOIODINE METABOLISM IN THE CHICK EMBRYO
Endocrinology, 1953Many studies have been made of the histology of the thyroid gland at various stages in the development of the chick embryo. These studies, as well as several to detsrmine the age of the chick embryo at which biochemical differentiation or thyroid function begins, have recently been summarized by Moore (1950).
Seymour H. Wollman, Edgar Zwilling
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The multiple hemoglobins of the chick embryo
Journal of Cellular Physiology, 1972AbstractTwo embryonic hemoglobins are found in chick erythrocytes during early development by column chromatography on DEAE‐cellulose and by electrophoresis on starch gel and gelatinized cellulose acetate. Beginning during the sixth day of incubation these are replaced by three different hemoglobins.
Daniel Dupourque +3 more
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The chick-embryo in sanatorium practice
British Journal of Tuberculosis and Diseases of the Chest, 1948Summary An outline on most of the work relating to the growth of Myco, tuberculosis in the chick-embryo is given. A brief description of the development of a chickembryo is added. The technique of chorio-allantoic inoculation is described and the results given in a small number of trials.
G.G. Davidson, J. Cuthbert
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Teratogenicity of ochratoxin A in chick embryos
Toxicology and Applied Pharmacology, 1978Abstract Experiments were conducted to evaluate the teratogenic potential of ochratoxin A given to developing chick embryos. Ochratoxin A was dissolved in propylene glycol and injected into embryonating chicken eggs at doses ranging from 0.0005 to 0.007 mg/egg.
James Bancroft +2 more
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The Biological Bulletin, 1919
In his paper, "Glycogen in the Nervous System of Vertebrates"' Gage has pointed out that glycogen is not found in such great abundance in the organs of the chick at any one period of its development as in the embryonic organs of many other forms, including mammals; from which the inference is at once drawn that this difference is correlated with the ...
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In his paper, "Glycogen in the Nervous System of Vertebrates"' Gage has pointed out that glycogen is not found in such great abundance in the organs of the chick at any one period of its development as in the embryonic organs of many other forms, including mammals; from which the inference is at once drawn that this difference is correlated with the ...
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Nucleoside phosphotransferase of chick embryo
Molecular and Cellular Biochemistry, 1979This paper describes a purification procedure and some properties of a nonspecific nucleoside phosphotransferase of chick embryo, an activity which catalyzes the transfer of chick embryo, an activity which catalyzes the transfer of the phosphate ester from a deoxyribonucleotide or a pyrimidine ribonucleotide to a deoxyribonucleoside acceptor.
Giovanni Tesoriere +3 more
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The Development of Somites in the Chick Embryo
Development, 1963ABSTRACTIn two groups of experiments the so-called ‘somite centres ‘were removed from chick blastoderms. Nevertheless, well-developed somites formed. It is concluded, therefore, that the ‘somite centres’ are not essential for somite formation. The same experiments, and others which are described, also provided evidence that somites can form in the ...
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Gonadal Growth in Chick Embryos
Nature New Biology, 1971During ovarian differentiation of bird embryos, ovaries grow faster than testes. The difference for mammals may reflect the sex chromosome constitution.
Joy D. A. Delhanty +3 more
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Toxicity of metals to chick embryos
Bulletin of Environmental Contamination and Toxicology, 1976A comparative index to the embryopathic effects of a number of metals which may appear as trace contaminants in avian food sources is given. Chicken eggs (White Plymouth Rock strain) were treated by yolk injection with sodium arsenite, sodium selenate and chloride salts of cadmium, lead, mercury, methyl mercury and zinc immediately prior to incubation.
Wesley J. Birge, Oliver W. Roberts
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