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1 Institute of Veterinary, Animal and Biomedical Sciences, Massey University, Palmerston North, New Zealand
2 Department of Genetics, University of Liege, Belgium
Seven New Zealand Holstein-Friesian families and two Jersey families, a total of 274 sires, were analyzed in a granddaughter design for marker-quantitative trait loci associations. For 17 nonproduction traits (management, size, and conformation traits), an acrossfamily analysis was undertaken using multimarker regression procedures. Threshold levels were set empirically by permuting the data. A quantitative trait locus for stature was identified on chromosome 14, which was significant at the 15% experimentwise level (suggestive linkage). The quantitative trait locus was identified to be segregating in three of the nine families.
Key Words: dairy cattle quantitative trait loci nonproduction traits
Submitted on December 16, 1998
Accepted on June 21, 1999
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