共 7 条
- [1] HANKINS OG, 1938, USDA TECH B, V665
- [2] Hazel L. N., 1943, JOUR ANIMAL SCI, V2, P118
- [3] Johnson Leslie E., 1944, JOUR ANIMAL SCI, V3, P224
- [5] KNAPP B, 1941, MONTANA AGR EXPT STA, V397
- [6] PATTERSON RE, 1949, J ANIM SCI, V8, P608
- [7] Winsor CP, 1940, J MAR RES, V3, P1