Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

    We have a manual that explains all the features 

Record number 421735
Title Ultrastructure of the hen eggshell and its physiological interpretation
Author(s) Simons, P.C.M.
Source Landbouwhogeschool Wageningen. Promotor(en): A.M. Frens. - Wageningen : Centre for Agricultural Publishing and Documentation - ISBN 9789022003411 - 90
Department(s) Wageningen University
Publication type Dissertation, internally prepared
Publication year 1971
Keyword(s) eierproducten - eierschaal - eieren - zoölogie - egg products - egg shell - eggs - zoology
Categories Poultry / Animal Products
Abstract <br/>Financial losses from egg breakage have increased over the years. To seek any relation with shell strength, the structure of eggshell and shell membranes were examined by light microscope, transmission electron microscope and scanning electron microscope. They were taken from eggs laid by laying hens, from eggs removed from the oviduct and from eggs laid prematurely, and occasionally from incubated hen eggs and eggs of guinea-fowl, duck, turkey, emu and ostrich.<p/>The results with different methods of measurement showed how shell membranes vary in thickness, how some structural properties of shell may influence shell strength, how the shell and shell membranes form and how they are destroyed during incubation and what factors influence the cuticular surface of the eggs.
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