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- [2] REPRODUCTIVE DEVELOPMENT AND PERFORMANCE OF HEREFORD HEIFERS CALVING AT 24 AND 30 MONTHS OF AGE OKLAHOMA AGRICULTURAL EXPERIMENT STATION MISCELLANEOUS PUBLICATION, 1982, (112): : 328 - 328
- [3] REPRODUCTIVE DEVELOPMENT AND PERFORMANCE OF HEREFORD HEIFERS CALVING AT 24 OR 30 MONTHS OF AGE OKLAHOMA AGRICULTURAL EXPERIMENT STATION MISCELLANEOUS PUBLICATION, 1985, (117): : 108 - 113
- [4] 24 VS 30-MONTH-OLD CALVING WITH HEREFORD HEIFERS OKLAHOMA AGRICULTURAL EXPERIMENT STATION MISCELLANEOUS PUBLICATION, 1979, (104): : 90 - 93
- [7] EFFECT OF AGE AT 1ST CALVING AND ONCE DAILY SUCKLING UPON DAYS OPEN AND CALVING INTERVAL IN 1ST CALF BRAHMAN-X-HEREFORD HEIFERS TEXAS AGRICULTURAL EXPERIMENT STATION PROGRESS REPORT, 1981, (3758): : 70 - 71