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Bull fertility



Bull fertility



Ark 13(11): 380-381



Recent data on bulls of rare breeds are tabulated. For 1 British White bull and 4 White Park (WP), 5 Gloucester and 4 Shetland bulls, CR averaged 29.4, 50.0, 37.5 and 28.6% resp. overall, 33.3, 55.6, 52.2 and 28.6% when inseminations of "problem" cows were excluded, and 11.1, 50.0, 38.9 and 28.6% when inseminations of crossbred cows were excluded.

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