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Characterisation of the oestrous cycles of maiden simmental heifers and their response to superovulation

Published online by Cambridge University Press:  20 November 2017

S P Singh ,
P J Broadbent  and
J S M Hutchinson
S P Singh
Affiliation:
Scottish Agriculture College, 581 King Street, Aberdeen, AB9 1UD, UK The University of Aberdeen, 581 King Street, Aberdeen, AB9 1UD, UK
P J Broadbent
Affiliation:
Scottish Agriculture College, 581 King Street, Aberdeen, AB9 1UD, UK
J S M Hutchinson
Affiliation:
The University of Aberdeen, 581 King Street, Aberdeen, AB9 1UD, UK
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Extract

The ovarian status of the donor animal before and at the time of gonadotrophin treatment appears to be a major determinant of superovulatory response in cattle. Transrectal ultrasonography is a non-invasive means of assessing the morphological status of the ovary which can be used on a repeated basis. Detailed evaluation of ovarian status by this means may enable superovulatory treatment protocols to be devised which are tailored to the individual donor animal. This possibility was evaluated in a preliminary study reported here.

Type
Ruminant Reproduction
Information
Proceedings of the British Society of Animal Science , Volume 1995 , March 1995 , pp. 137
Copyright
Copyright © The British Society of Animal Science 1995

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