共 50 条
- [21] INFLUENCE OF MANGANESE, COPPER AND ZINC ON REPRODUCTIVE-PERFORMANCE OF BEEF-COWS [J]. NUTRITION REPORTS INTERNATIONAL, 1986, 34 (02): : 287 - 293
- [24] Influence of age on the performance of beef cows [J]. ZUCHTUNGSKUNDE, 2007, 79 (03): : 161 - 173
- [25] Assessment of trace mineral and vitamin E status beef cows in Ontario [J]. CANADIAN VETERINARY JOURNAL-REVUE VETERINAIRE CANADIENNE, 2001, 42 (05): : 384 - 385
- [28] Optimising reproductive performance of beef cows and replacement heifers [J]. ANIMAL, 2014, 8 : 27 - 39