共 50 条
- [35] AN INVESTIGATION INTO THE EFFECTS OF CLINICAL MASTITIS ON MILK-YIELD IN DAIRY-COWS LIVESTOCK PRODUCTION SCIENCE, 1993, 36 (04): : 311 - 321
- [39] NUTRIENT AND MINERAL SUPPLY OF DAIRY-COWS BY FORAGE - RESULTS OF AN INVESTIGATION IN PRACTICAL DAIRY FARMS OF AUSTRIA BODENKULTUR, 1992, 43 (01): : 65 - 79