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In 1946-58 at the A. I. Centre at Izatnagar an av. conception rate of 53.2% (based on calvings) was obtained from 6768 inseminations of cattle. There was no seasonal variation in C. R. or in sex ratio.
In the same period the av. C. R. for 5797 inseminations of buffalo cows was 54.2%; the percentage ...

Annales de Zootechnie, 1961, 10, pp 229-232