共 18 条
[5]
Byerly TC, 1933, J AGRIC RES, V46, P0001
[6]
CRAVENS W. W., 1943, Poultry Science, V22, P94, DOI 10.3382/ps.0220094
[7]
Cravens WW, 1942, P SOC EXP BIOL MED, V50, P101, DOI 10.3181/00379727-50-13712P
[8]
Cravens WW, 1942, P SOC EXP BIOL MED, V51, P106, DOI 10.3181/00379727-51-13849
[10]
DAVIS H. J., 1938, POULTRY SCI, V17, P87, DOI 10.3382/ps.0170087