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Problems of the transplantation of fertilized ova

Published online by Cambridge University Press:  27 March 2009

D. F. Dowling
D. F. Dowling
Affiliation:
School of Agriculture, University of Cambridge, and Council for Scientific and Industrial Research, Australia
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Extract

1. The object of this investigation has been to advance knowledge of the methods necessary for the practical application of the transplantation of fertilized ova in cattle.

2. The induction of ovulation at any specific time can be produced by squeezing out the corpus luteum per rectum. Oestrus occurs from 2 to 4 days afterwards; this is accompanied by ovulation and the ova so produced are readily fertilized. The onset of oestrus after the expression of the corpus luteum is hastened by previous treatment with P.M.S.

3. The induction of multiple ovulations is necessary to produce an augmented supply of fertilized ova, but it is of primary importance that the ova so produced are fertilized, viable and capable of full development. Four methods of doing this have been tested.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 39 , Issue 4 , October 1949 , pp. 374 - 396
Copyright
Copyright © Cambridge University Press 1949

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