Ovulation and lambing rates in ewes actively immunized against androstenedione

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Authors:
P. F. A. Van Look
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I. J. Clarke
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W. G. Davidson
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R. J. Scaramuzzi
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Summary. In ewes immunized against androstenedione, ovulation rate was increased (P < 0·001) although the number of live lambs/nursing ewe (1·37), but not the sex ratio (10♀♀:1♂), was similar to that of controls (1·33).

 

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