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Use of sexed semen and its effect on conception rate, calf sex, dystocia, and stillbirth of Holsteins in the United States.
Norman HD, Hutchison JL, Miller RH. Norman HD, et al. J Dairy Sci. 2010 Aug;93(8):3880-90. doi: 10.3168/jds.2009-2781. J Dairy Sci. 2010. PMID: 20655457
Comparison of ten Friesian strains in Poland for yield traits from first three parities.
Zarnecki A, Jamrozik J, Norman HD. Zarnecki A, et al. Among authors: norman hd. J Dairy Sci. 1991 Jul;74(7):2303-8. doi: 10.3168/jds.S0022-0302(91)78403-8. J Dairy Sci. 1991. PMID: 1894819
Comparison of genetic evaluations from animal model and modified contemporary comparison.
Norman HD, Powell RL, Wiggans GR. Norman HD, et al. J Dairy Sci. 1991 Jul;74(7):2309-16. doi: 10.3168/jds.S0022-0302(91)78404-X. J Dairy Sci. 1991. PMID: 1894820
Phenotypic and genetic relationship between linear functional type traits and milk yield for five breeds.
Norman HD, Powell RL, Wright JR, Cassell BG. Norman HD, et al. J Dairy Sci. 1988 Jul;71(7):1880-96. doi: 10.3168/jds.S0022-0302(88)79758-1. J Dairy Sci. 1988. PMID: 3410996
Influence of genetic differences in merit of mates on sire evaluation.
Norman HD, Powell RL, Wright JR. Norman HD, et al. J Dairy Sci. 1987 Jan;70(1):141-57. doi: 10.3168/jds.S0022-0302(87)79989-5. J Dairy Sci. 1987. PMID: 3571617
Genetic and environmental differences between registered and grade Holstein cows.
Powell RL, Norman HD. Powell RL, et al. Among authors: norman hd. J Dairy Sci. 1986 Nov;69(11):2897-907. doi: 10.3168/jds.S0022-0302(86)80745-7. J Dairy Sci. 1986. PMID: 3805462
Changes of evaluation for natural-service sampled bulls brought into artificial insemination.
Norman HD, Powell RL, Wright JR. Norman HD, et al. J Dairy Sci. 1985 Jun;68(6):1513-22. doi: 10.3168/jds.S0022-0302(85)80991-7. J Dairy Sci. 1985. PMID: 4019889
Differences in modified contemporary comparison sire evaluations from first and later lactations by breed.
Cassell BG, Clay JS, Norman HD. Cassell BG, et al. Among authors: norman hd. J Dairy Sci. 1985 Jul;68(7):1778-84. doi: 10.3168/jds.S0022-0302(85)81027-4. J Dairy Sci. 1985. PMID: 4031194
Components of genetic variance and covariance for linear type traits in Jersey cattle.
Thomas CL, Vinson WE, Pearson RE, Norman HD. Thomas CL, et al. Among authors: norman hd. J Dairy Sci. 1985 Nov;68(11):2989-94. doi: 10.3168/jds.S0022-0302(85)81194-2. J Dairy Sci. 1985. PMID: 4078125
Pedigree information to predict genetic merit for type of Holstein bulls.
Lee KL, Vinson WE, White JM, Norman HD, Kliewer RH. Lee KL, et al. Among authors: norman hd. J Dairy Sci. 1983 Oct;66(10):2185-91. doi: 10.3168/jds.S0022-0302(83)82066-9. J Dairy Sci. 1983. PMID: 6643812
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