共 18 条
- [1] BERGMEYER HU, 1974, METHOD ENZYMAT AN, V4, P1794
- [3] Butler WR, 1996, J ANIM SCI, V74, P858
- [4] CARLSSON J, 1994, ACTA VET SCAND, V35, P193
- [7] EFFECTS OF SILAGE QUALITY, PROTEIN EVALUATION SYSTEMS AND MILK UREA CONTENT ON MILK-YIELD AND REPRODUCTION IN DAIRY-COWS [J]. LIVESTOCK PRODUCTION SCIENCE, 1993, 37 (1-2): : 91 - 105
- [8] HOWANITZ JH, 1984, CLIN CHEM, V30, P906
- [9] Ide Y, 1966, Nihon Juigaku Zasshi, V28, P321