TY - JA AU - Ho,Y.T. AU - Comstock,R.E. TI - Combining superior alleles from two homozygous populations in a cross-fertilizing species U1 - 81-646704 PY - 1980/// KW - Animal genetics and breeding KW - Domesticated mammals general KW - Laboratory animals except insects and mites reared for biological c N1 - 15 ref T2 - Genetical Research ER -