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Quantitative observations on pig embryos of known ages

Published online by Cambridge University Press:  27 March 2009

A. W. Marrable  and
R. R. Ashdown
A. W. Marrable
Affiliation:
Department of Veterinary Anatomy, University of Bristol, Park Bow, Bristol 1
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Extract

1. The lengths and weights of 241 pig embryos, aged 26–109 days, were recorded; the pregnant sows were from a mixed herd of Landrace, Large White and Wessex stock and some of their crosses.

2. An empirical linear regression of length on age was estimated (equation 1); the relation between weight and age was represented by a polynomial weight and age was represented by a polynomial (equation 2).

We thank Mr A. S. Cray and the other directors of Unigate Ltd. for giving us the pigs; Mr P. Sedgewick of that Company gave us excellent co-operation. Prof. C. W. Ottaway and Dr P. Radford helped us throughout the investigation.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 69 , Issue 3 , December 1967 , pp. 443 - 447
Copyright
Copyright © Cambridge University Press 1967

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