共 17 条
- [2] BEARDSLEY DW, 1959, J ANIM SCI, V18, P1507
- [3] BLAXTER K. L., 1956, Journal of Agricultural Science, V47, P207, DOI 10.1017/S0021859600040132
- [4] CHURCH DC, 1959, J ANIM SCI, V18, P1168
- [6] HOPKINS HA, 1960, J ANIM SCI, V19, P652
- [7] JENSEN R, 1958, AM J VET RES, V19, P277
- [8] LECLERG EL, 1957, AGR RES SERV US DEPT