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Abstract

The oestrous cycle in 7, 800 cows varied from 20-21 days. In East-Flanders the conception rate was 61%. The most fertile of 16 bulls fertilized 86% of 111 cows, the least fertile 37% of 62 cows. The most fertile bulls fertilize nearly all healthy cows at the first mating. The season and feeding...

Author(s)
Anon.
Citation
Vlaams Diergeneeskundig Tijdschrift, 1951, 20, pp 33-46
Abstract

Citation
Reports of Agricultural Experiment Stations, U.S.A. Details of the titles of these reports and of relevant papers contained in them will be found in Index Veterinanus.,

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