Library Catalogue

Library Catalogue

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    Union Catalogue of Agricultural Libraries in the Netherlands

    The WUR Library Catalogue contains bibliographic data on books and periodicals held by the libraries of Wageningen University and Research Centre and some 15 associated libraries. Holding data are added to each record.

    Subjects covered include Agrotechnology, Food and Food Production, Plant and Animal Sciences, Soil Science, Geo-information, Landscape and Spatial Planning, Water and Climate, Ecosystem Studies, Economics and Society.

    The joint collections of the participating libraries cover a substantial part of the internationally available scientific literature in these disciplines.

    As far as Dutch scientific literature in these fields is concerned, coverage can be considered near 100%, including much of the so-called "grey literature".

    All titles are entered in their original language. Keywords are added to facilitate subject searching.

    The database is updated every day and now contains over 830.000 records.

Record number 104490
Title Ultrastructure of the hen eggshell and its physiological interpretation
show extra info.
P.C.M. Simons
Author(s) Simons, P.C.M.
Publisher Wageningen : Centre for Agricultural Publishing and Documentation
Publication year 1971
Description XII, 90 p Fig. (VI, 46 p.)
Notes Proefschrift Wageningen
Ook verschenen als handelsuitgave
ISBN 9022003418
Tutors Frens, Prof. Drs. A.M.
Graduation date 1971-06-28
Dissertation no. 496
Author abstract show abstract
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.

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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On paper FORUM ; STACKS ; NN08200,496 ; Figures
FORUM ; STACKS ; NN08200,496
FORUM ; STACKS ; NN08202,496 ; Figures
FORUM ; STACKS ; NN08202,496
Keyword(s) (cab) egg products / egg shell / eggs / zoology
Categories Poultry / Animal Products
Publication type PhD thesis
Language English
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