Efficiency of various BLUP models for estimation of bulls by quality of progeny
1995
Kuznetsov, V.M.
17 BLUP models were considered for estimation of bulls by quality of progeny. The least estimation error of breeding value of bulls weight was committed when using model BLUP 15 including random additive genetic bull effect (SI), fixed effects "herd-calving year" (HY) and "calving month" (M), live weight of daughters when calving (W) and number of milking days (d) as independent variables. Correlation between two independent estimations of bull breeding value for bulls with number of daughters from 15 to 49 was 0,87 -by milk yields, 0,85 - by production of milk butter, 0,70 -by content of fat in milk. These variables were 0,93; 0,91 and 0,74, respectively with great number of daughters (n
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