An amplified enzyme immunoassay kit for progesterone analysis was used to diagnose pregnancy in a flock of 130 mule ewes. An accuracy of 100 per cent was obtained after the analysis of progesterone in plasma samples taken 15 to 16 days after mating. In mule ewes a plasma progesterone level greater than 5.9 nmol/litre was indicative of pregnancy. In the validation of the technique, duplicate ewe plasma samples and progesterone standards were compared with a radio immunoassay technique; the regression coefficient between the two techniques was r = 0.82.
- British Veterinary Association. All rights reserved.
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