共 25 条
- [1] Berg R. T., 1976, NEW CONCEPTS CATTLE
- [3] CHAMBERS JR, 1984, THEOR APPL GENET
- [4] DAWKINS R, 1973, BEHAVIOUR, V45, P83
- [7] GAVORA JS, 1979, 29TH AN BREED ROUNDT, P33
- [8] GAVORA JS, 1982, 2ND WORLD C GEN APPL, V7, P357
- [9] GOWE RS, 1980, 1980 P S PAC POULTR, P141