The following adjustment factors come from work done
originally at Texas A&M - San Angelo combined with work on adjustment
factors for sheep. Specifically they were obtained from the Boer Goat
Improvement Network, B-GIN Fact Sheet, 2004 EPD Report.
Multiplicative factors used to adjust birth and weaning weights for non-genetic effects:
| EFFECT | LEVEL |
BIRTH WEIGHT |
WEANING WEIGHT |
| Kid Sex | Buck | 0.91 | 0.90 |
| Doe | 1.00 | 1.00 | |
| Wether | - | 0.97 | |
| Type of Birth - Rearing |
1-1 | 1.00 | 1.00 |
| 1-2 | - | 1.14 | |
| 2-1 | - | 1.04 | |
| 2-2 | 1.13 | 1.18 | |
| 3-1 | - | 1.08 | |
| 3-2 | - | 1.23 | |
| 3-3 | 1.27 | 1.27 | |
| Age of Dam | 1 | 1.27 | 1.10 |
| 2 | 1.07 | 1.09 | |
| 3-7 | 1.00 | 1.00 | |
| 8+ | 1.05 | 1.00 |
Actual birth weights and age-adjusted (to 90 days) weaning weights are multiplied by the factor shown to correct for non-genetic effects of kid sex, type of birth (for birth weight) or birth and rearing (for weaning weight), and age of the dam.
Type of birth-type of rearing. Birth weights were adjusted only for type of birth.
Multiplicative factors used to adjust litter size for effects of age of dam
| AGE OF DAM | ADJUSTMENT FACTOR |
| 1 | 1.48 |
| 2 | 1.17 |
| 3 | 1.05 |
| 4 | 1.01 |
| 5 | 1.00 |
| 6 | 1.00 |
| 7 | 1.02 |
| 8 | 1.05 |
| 9+ | 1.13 |
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