共 6 条
[1]
Bird H. R., 1943, POULTRY SCI, V22, P403, DOI 10.3382/ps.0220403
[2]
Clandinin D. R., 1942, U S EGG AND POULTRY MAG, V48, P650
[4]
HUNT CHARLES H., 1939, POULTRY SCI, V18, P330, DOI 10.3382/ps.0180330
[5]
McGinnis James, 1944, POULTRY SCI, V23, P553
[6]
Wilgus H. S., 1944, POULTRY SCI, V23, P344, DOI 10.3382/ps.0230344