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Journal of Dairy Science Vol. 35 No. 11 963-965
© 1952 by American Dairy Science Association ®
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The Fertility of Interbreed vs. Intrabreed Matings as Determined from Artificial Breeding Data

E. L. Corley, N. D. Bayley and F. A. Hendrickson1

Department of Dairy Husbandry, University of Wisconsin, Madison

ABSTRACT

This investigation included 2,692 inseminations by 22 Holstein-Friesian and 14 Guernsey sires. There was no evidence from these data that any real difference in fertility exists between interbreed and intrabreed inseminations made on the same day, by the same technician and with semen from the same bull. Some indication of breed of bull effect on fertility was suggested.

FOOTNOTES

The authors wish to express their thanks to the Computing Service of the University of Wisconsin for their assistance in summarizing and analyzing these data.






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Copyright © 1952 by the American Dairy Science Association ®.