Estimating breeding values of dairy bulls from Canadian R.O.P. records
Hickman, C.G.
Canad. J. Anim. Sci 41(1): 40-48
1961
Accession: 014037007
A modification of the method of Henderson et al. (J. Anim. Sci. 13 959 (1954)), based on a maximum likelihood estimate of contemporaries, was applied to data from the Canadian Record of Performance milk records for Guernsey, Jersey, Ayrshire and Holstein-Friesian breeds with an estimated 40, 160, 150 and 470 respectively of testable bulls biannually.
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