Index selection for direct and maternal genetic components of economic traits.

摘要: The selection index criterion for aggregate genetic value defined as H = v* g*, where g* is a vector of additive values the several economically important traits and relative economic is, well known, I (P-'G*v*)'x, P phenotypic covariance matrix data vector, x, G* importatn traits. When each trait has direct maternal component becomes (P-'A'Gv)' G components all traits, (twice order G*), v length v*), A particular consisting zeros relationships animal being evaluated with its relatives having records dams those relatives. correlated response kth (direct or maternal) thejth Agi Agjk v'G'AP-1(A'G)j/0-1 times standardized differential, (A'G)i ith column A'G.