共 13 条
- [1] BEARSE GE, 1950, POULTRY SCI, V29, P748
- [2] BIRD S., 1939, SCI AGRIC [OTTAWA], V19, P542
- [3] CARD LE, 1952, POULTRY PRODUCTION
- [4] DUNCAN D. C, 1953, AGRIC GAZ N SOUTH WALES, V64, P41
- [5] FRAPS GS, 1946, TEXAS AGR EXPT STA B, V678
- [6] Haugh RR., 1937, US EGG POULT MAG, V43, P522
- [7] Lee Clarence E., 1944, POULTRY SCI, V23, P360, DOI 10.3382/ps.0230360
- [9] RINGROSE R. C., 1939, POULTRY SCI, V18, P125
- [10] SINGSEN EP, 1950, POULTRY SCI, V29, P779