Calving Difficulty
From BIF Guidelines Wiki
Calving difficulty is a subjective measure of the degree of dystocia. Dystocia can be caused by a large pre-natal calf, small pelvic area of the dam, lack of sufficient uterine contractions, insufficient dilation of the cervix, or mispositioned calf prior to parturition. Calving ease EPD are produced from calving difficulty scores and birth weight observations.
Phenotype
Producers are asked to score the degree of calving difficulty using the following subjective scores:
| Score | Description |
|---|---|
| 1 | No difficulty, no assistance required |
| 2 | Minor difficulty, some assistance |
| 3 | Major difficulty, usually mechanical assistance |
| 4 | Caesarian section or other surgery |
| 5 | Abnormal presentation |
