共 19 条
- [2] BICKOFF EM, 1954, J ASSOC OFF AGR CHEM, V37, P894
- [4] BRAMBILA S, 1962, POULTRY SCI, V41, P1629
- [5] CARLSON CW, 1961, 22 SOUTH DAK FARM HO, VN 2, P20
- [6] DONOVAN GA, 1961, POULTRY SCI, V40, P1395
- [7] DRYDEN J, 1905, 92 UT AGR EXP STA B, P174
- [8] FRITZ JC, 1962, FEEDSTUFFS, V34, P44
- [10] GOODWIN TW, 1954, CAROTENOIDS COMPARAT