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- [3] INCIDENCE OF DYSTOCIA AND POSTPARTURIENT DISORDERS IN JERSEY CATTLE AFTER CROSS-BREEDING WITH CHAROLAIS BULLS [J]. BRITISH VETERINARY JOURNAL, 1966, 122 (07): : 273 - &
- [10] CHARACTERIZATION OF THE REPRODUCTIVE-PERFORMANCE OF ANGUS AND POLLED HEREFORD CATTLE UNDER A SPECIFIC MANAGEMENT REGIME [J]. GEORGIA AGRICULTURAL EXPERIMENT STATION RESEARCH REPORT, 1979, (327): : 1 - 16