共 6 条
[2]
MACARTNEY E. LINTON, 1942, POULTRY SCI, V21, P130, DOI 10.3382/ps.0210130
[3]
PARKER JESSE E., 1940, POULTRY SCI, V19, P191, DOI 10.3382/ps.0190191
[4]
RILEY G. M., 1940, POULTRY SCI, V19, P360
[5]
UPP CHARLES W., 1928, POULTRY SCI, V7, P225
[6]
WELLS G.P, 1955, SOURCES ANIMAL BEHAV