共 27 条
[1]
ALMQUIST HJ, 1931, HILGARDIA, V6, P61
[3]
BENJAMIN EW, 1920, NEW YORK AGR EXPT ST, V31, P195
[5]
GODFREY A. B., 1937, POULTRY SCI, V16, P216, DOI 10.3382/ps.0160216
[6]
Hall G. O., 1944, POULTRY SCI, V23, P259, DOI 10.3382/ps.0230259
[7]
HAYS FA, 1937, MASSACHUSETTS AGR EX, P344
[8]
HOLDEFLEISS P, 1911, BER PHYS LAB VERSUCH, V20, P93
[9]
HOLST W. F., 1931, HILGARDIA, V6, P45
[10]
HURST CC, 1905, COMM ROY SOC RPT, V2, P131