| Compared with the HPS, more weaned heifers and fewer bred yearlings were sold when heifer development costs were increased. |
| Very often those calved heifers fail to go back in calf easily and become late calvers the following season. |
| Also, heifers that conceive earlier in their first breeding season calve earlier and wean heavier calves. |
| In contrast, Kastelic et al. monitored inseminated yearling heifers for signs of pregnancy. |
| He said one of his heifers was so frightened by the choppers it leapt a five-foot wire fence and ran down a main road. |
| On the ranch, yearling heifers, 2-year-old cows, and 3-year-old cows are all managed separately. |
