共 16 条
[6]
GUTTERIDGE H. S., 1942, SCI AGRIC [OTTAWA], V22, P378
[7]
Harshaw Harold M., 1943, U S EGG AND POULTRY MAG, V49, P405
[8]
HARSHAW HM, 1943, US EGG POULTRY MAGAZ, V49, P432
[9]
HARSHAW HM, 1943, US EGG POULTRY MAG, V49, P407
[10]
JAAP R. GEORGE, 1938, POULTRY SCI, V17, P425, DOI 10.3382/ps.0170425