Table 3. Percentages of controlled internal drug release (CIDR) devices retained, presentation of estrus and gestations summarized for the different groups.
Number ofanimals | CIDRsretained | Presentation of estrus(P = 0.19) | Gestations(P = 0.0037) | |
Group A (Control) | 50 | 50 (100%) | 48 (96%) | 8 (16%) |
Group B (rHBPs) | 50 | 50 (100%) | 46 (92%) | 20 (40%) |
Total | 100 | 100 (100%) | 94 (94%) | 28 (28%) |
Group A (Control) = crossbred heifers inseminated with cryopreserved, frozen-thawed sperm without added recombinant heparin binding proteins (rHBPs), i.e., control group. Group B (rHBPs) = crossbred heifers inseminated with cryopreserved, frozen-thawed sperm with added rHBPs, i.e., treatment group.