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University of Illinois, Urbana
Abstract
Significant sire differences were found in the proportions of normal, pyriform, unevenly stained and diploid sperm nuclei in the semen of their sons. Except for diploid nuclei (which were rare) the linecross sons excelled the inbred sons on the average, but not significantly so.
1 This work was partially supported by the North Central Breeders Research Council.
2 Department of Dairy Science.
3 Acknowledgement is due H. H. Stonaker, Animal Science Department, Colorado State University, Fort Collins, for permission to sample the bulls and E. J. Carroll, Animal Reproduction Unit, Colorado State University, Fort Collins, for collecting the semen.
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