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Abstract

In 1960 in Czechoslovakia there were 139 A. I. stations with 2851 bulls, of which 55.6% were élite; the bull/cow ratio was 1: 822. A total of 83.1% of the cow population was inseminated, the conception rate being 87.1% and the insemination index [see A. B. A., 30, No.1716] 1.96, with 86.3 live...

Author(s)
PËIBYL, E.; POLÁK, L.
Citation
Zuchthygiene, Fortpflanzungsstorungen und Besamung der Haustiere, 1961, 5, pp 186-198