共 6 条
- [1] CARRICK CW, 1932, INDIANA POULTRY BLUE, P10
- [2] Hammond John C, 1944, POULTRY SCI, V23, P105, DOI 10.3382/ps.0230105
- [3] MUSSEHL FE, 1940, NEBRASKA RES B, V119
- [4] TAYLOR LEWIS W., 1939, POULTRY SCI, V18, P323, DOI 10.3382/ps.0180323
- [5] TITUS HW, 1930, 4TH P WORLDS POULTR, P307
- [6] TULLY WC, 1934, S DAKOTA B, V284