共 50 条
- [3] EFFECT ON LACTATING HEIFERS AND COWS OF FEEDING DIFFERENT FLAT RATES OF CONCENTRATE [J]. ANIMAL PRODUCTION, 1971, 13 (MAY): : 379 - +
- [4] EFFECT OF SUPPLEMENT FEEDING LEVEL AND CRUDE PROTEIN-CONTENT OF THE SUPPLEMENT ON THE PERFORMANCE OF SPRING-CALVING DAIRY-COWS [J]. IRISH JOURNAL OF AGRICULTURAL RESEARCH, 1983, 22 (01): : 69 - 78
- [7] Effect of protein content in the concentrate and level of nitrogen fertilization on the performance of dairy cows in pasture [J]. ANNALES DE ZOOTECHNIE, 1996, 45 (04): : 327 - 341
- [8] PROTEIN-CONTENT IN MILK AND FERTILITY IN COWS [J]. KIELER MILCHWIRTSCHAFTLICHE FORSCHUNGSBERICHTE, 1981, 33 (03): : 227 - 233