University of Worcester Worcester Research and Publications

Ostrich (Struthio camelus) Embryonic Development From 7 to 42 Days of Incubation

Brand, Z., Cloete, S.W.P., Malecki, I.A. and Brown, Chris (2017) Ostrich (Struthio camelus) Embryonic Development From 7 to 42 Days of Incubation. British Poultry Science, 58 (2). pp. 139-143. ISSN 0007-1668 Online: 1466-1799

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1. Hatching success of ostrich eggs is poor (50–60% of fertile eggs). The current study was designed to identify the timing of key stages in the development of the ostrich embryo.

2. Growth of both embryo and wing length during 42 d of incubation was comparable and approximately linear, with a more or less weekly doubling in size up to 35 d of incubation.

3. The embryo eye size increased more rapidly than beak length and reached a maximum of ~16.2 mm by 28 d of incubation, whereas beak length increased continuously until hatching at 42 d.

4. Linear regression equations were derived from morphometric measurements of embryos between 7 and 42 d.

5. Information stemming from these results can be used to estimate the age of dead-in-shell embryos in an attempt to identify timing of incubation problems that potentially result in low hatchability of fertile eggs.

Item Type: Article
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Staff and students at the University of Worcester can access the full-text of the online published article via the UW online library search. External users should check availability with their local library or Interlibrary Requests Service.
“This is an Accepted Manuscript of an article published by Taylor & Francis in British Poulty Science on 17th January 2017, available online:

Uncontrolled Discrete Keywords: ostrich, incubation, embryology, embryo length, leg, wing, beak, setting position, SERG
Subjects: Q Science > Q Science (General)
Q Science > QL Zoology
S Agriculture > SF Animal culture
Divisions: College of Health, Life and Environmental Sciences > School of Science and the Environment
Related URLs:
Depositing User: Janet Davidson
Date Deposited: 23 Jan 2017 10:08
Last Modified: 31 Jul 2020 14:00

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