共 5 条
[1]
FUNK E. M., 1934, POULTRY SCI, V13, P184, DOI 10.3382/ps.0130184
[2]
FUNK EM, 1934, MISSOURI B, V332
[3]
HAYS F. A., 1937, POULTRY SCI, V16, P85, DOI 10.3382/ps.0160085
[4]
HUTT F. B., 1930, POULTRY SCI, V9, P194
[5]
PRITSKER IJ, 1940, P LENIN ACAD AGR SCI, V6, P41