共 8 条
[1]
BALLOUN SL, 1956, POULTRY SCI, V36, P566
[2]
BELL JC, 1949, B ANN RES COLLEGE AG, V50, P42
[3]
BIRD H. R., 1937, POULTRY SCI, V16, P238, DOI 10.3382/ps.0160238
[4]
COMBS GF, 1954, MARYLAND AGR EXPT ST, V210
[6]
FRAPS GS, 1946, TEXAS AGR EXPT STATI, V678
[7]
HEUSER GF, 1946, POULTRY SCI, V25, P195
[8]
SCOTT MLOL, 1957, POULTRY SCI, V276, P276