共 6 条
[1]
CANFIELD T. H., 1940, Poultry Science, V19, P235, DOI 10.3382/ps.0190235
[2]
CANFIELD TH, 1948, MINNESOTA AGR EXP ST, V403
[3]
CANFIELD TH, 1944, 3 MINN AGR EXP STA M
[4]
CANFIELD THOMAS H., 1941, POULTRY SCI, V20, P327, DOI 10.3382/ps.0200327
[5]
HAMMOND JOHN C, 1937, POULTRY SCI, V16, P287, DOI 10.3382/ps.0160287
[6]
MARSDEN SJ, 1946, TURKEY MANAGEMENT, P672