共 50 条
- [44] THE EFFECTS OF CRUDE PROTEIN PERCENTAGE AND UREA IN DIFFERENT STAGES OF LACTATION ON MILK-PRODUCTION IN HIGH-YIELDING DAIRY-COWS SOUTH AFRICAN JOURNAL OF ANIMAL SCIENCE-SUID-AFRIKAANSE TYDSKRIF VIR VEEKUNDE, 1984, 14 (03): : 132 - 135
- [45] INFLUENCE OF PROTECTED METHIONINE ON PERFORMANCE PARAMETERS OF HIGH YIELDING DAIRY-COWS WIENER TIERARZTLICHE MONATSSCHRIFT, 1985, 72 (12): : 377 - 386
- [48] RISKS OF HEALTH OF HIGH-YIELDING COWS SCHWEIZERISCHE LANDWIRTSCHAFTLICHE MONATSHEFTE, 1980, 58 (11): : 480 - 485