共 21 条
[1]
BRAY D. F., 1962, British Poultry Science, V3, P175, DOI 10.1080/00071666208415472
[5]
Halbersleben D.L., 1922, POULTRY SCI, V1, P143, DOI [10.3382/ps.0010143, DOI 10.3382/PS.0010143]
[6]
JAAP RG, 1971, WORLD POULTRY SCI J, V27, P281
[7]
Jull MA, 1925, J AGRIC RES, V31, P0223
[8]
JULL MA, 1930, POULTRY SCI, V9, P393