منابع مشابه
Albumen absorption during chick embryogenesis.
In birds albumen represents a substantial part of the reserve material for their embryological development (Romanoff & Romanoff, 1949). In Gallus gallus albumen proteins form 50 % of non-incubated egg protein content (Romanoff & Romanoff, 1949). During incubation such material is absorbed and utilized, to a great extent, for the synthesis of embryonal proteins (Fiske & Boyden, 1926; Rupe & Farm...
متن کاملThe Albumen & Salted Paper Book--electronic edition
(Extended photo media series ; 2) On cover: The history and practice of photographic printing, 1840-1895. Preface Silverprinting has been often doomed, but it still survives. The Albumen and Salted Paper Book is a book about the major photographic printing processes in use during the years 1840-1895, approximately the first half-century of photographic history. These first 50 years of photograp...
متن کاملAlbumen Transport to Bruch's Membrane and RPE by Choriocapillaris Caveolae
PURPOSE The choriocapillaris (CC), the capillary network of the choroid, is positioned adjacent to Bruch's membrane (BM) and the RPE. The aim of this study was to clarify the mechanism(s) for transport of serum albumen from CC lumen to RPE. METHODS Alexa647 conjugated to BSA (BSA-A647) or PBS was administrated via the femoral vein to young and aged wild-type (WT; C57BL/6J) mice and Caveolin-1...
متن کاملEarliest Techniques Expert Group: Daguerrotypes, Salt Prints, Albumen Prints
Daguerreotypes are sharply defined, highly reflective, one-of-a-kind photographs on silver-coated copper plates, packaged behind glass and kept in protective cases. Introduced in 1839 by Louis-Jacques-Mandé Daguerre, the daguerreotype process was the first commercially successful photographic process, and is distinguished by a remarkable clarity of pictorial detail. Daguerreotypes were popular ...
متن کاملOxytetracycline transfer into chicken egg yolk or albumen.
This study was conducted to determine whether the approved doses of oxytetracycline (OTC) for breeder hens and meat-type poultry would produce drug residue transfer into egg components when fed to laying hens. Twenty hens were assigned to equal groups (n = 10) and fed either 50 or 200 g/ton OTC for 5 d. Oxytetracycline concentrations in egg components were determined daily during a 2-d pretreat...
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ژورنال
عنوان ژورنال: Scientific American
سال: 1870
ISSN: 0036-8733
DOI: 10.1038/scientificamerican02051870-89a