From mature dams, average birth-weights are:
Fresian, 30-35 kg | Hereford, 30-33 kg* | Coopworth, 4.8-5.2kg* |
Jersey, 22-25 kg | Romney, 4.0-5.0 kg* | Perendale, 4.5-5.0 kg* |
Angus, 28-31 kg |
*Twins 0.5 kg lighter
Metrication and Lamb Grading Charges
| Grade Mark | Weight (kg) | Fat Content | |
P’s | PL P M PX PH | 9.0 – 12.5 13.0 – 16.0 16.5 – 20.0 20.5 – 25.5 | medium |
Trimmer Y’s | TL TM TH YL YM | 9.0 – 12.5 13.0 – 16.0 16.5 – 25.5 9.0 – 12.5 13.0 – 16.0 | Heavy Light |
Alpha | A | less than 9.0 | Almost devoid |
F | FL FM FH | 9.0 – 12.5 13.0 – 16.0 16.5 – 25.5 | Excessive |
Cutter | CL CM CH | 9.0 – 12.5 13.0 – 16.0 16.5 – 25.5 |