共 50 条
- [36] PERFORMANCE OF LACTATING ZEBU CATTLE AND WATER-BUFFALOES ON DIFFERENT LEVELS OF UREA IN THE RATION INDIAN JOURNAL OF ANIMAL SCIENCES, 1981, 51 (06): : 599 - 603
- [39] Protein levels in cattle diets. 4. Ruminal ammonia N concentration, plasma urea N, and urea and creatinine excretions REVISTA DA SOCIEDADE BRASILEIRA DE ZOOTECNIA-JOURNAL OF THE BRAZILIAN SOCIETY OF ANIMAL SCIENCE, 1997, 26 (06): : 1270 - 1278