Table 7. Predicted means for the genotype of introgressed gene on lamb growth traits between pure Moghani sheep and second generations of crossbred lambs (F2 and BC1).
| Introgressed gene | Genotype | N | Lamb growth traits | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| BW (kg) | W3adj (kg) or weaning | W6adj (kg) | Diff1 (kg) | Diff2 (kg) | ADWG1 (gr) | ADWG2 (gr) | ||||
| MSTN | homozygous reference | G/G | 103 | 4.77 a | 25.66 b | 49.65 a | 21.07 b | 24.23 a | 234.11 b | 269.22 a |
| heterozygous | G/A | 94 | 4.74 a | 25.72 b | 47.04 ab | 21.24 b | 21.32 ab | 236.00 b | 236.89 ab | |
| homozygous variant | A/A | 6 | 3.63 b | 30.40 a | 47.11 ab | 26.36 a | 16.75 bc | 292.90 a | 186.13 bc | |
| Booroola | homozygous reference | A/A | 139 | 4.58 a | 25.62 b | 49.68 a | 21.06 b | 24.06 a | 234.03 b | 267.35 a |
| heterozygous | A/G | 158 | 4.68 a | 26.03 b | 50.83 a | 21.44 b | 24.80 a | 238.16 b | 275.53 a | |
| homozygous variant | G/G | 4 | 2.56 c | 23.96 b | 39.67 c | 21.45 b | 15.71 c | 238.40 b | 174.53 c | |
| Pure breed | Moghani wild type | 172 | 3.88 b | 27.02 b | 40.23 bc | 23.14 b | 13.10 c | 257.08 b | 145.50 c | |
| SEM | 0.04 | 0.17 | 0.39 | 0.16 | 0.33 | 1.81 | 3.69 | |||
| P Value | 0.0031 | 0.0187 | 0.0144 | 0.04 | 0.0144 | 0.04 | 0.0144 | |||
N =: number of lambs at each mating strategy; BW: birth weight; W3adj: adjusted weight at 3 months (weaning); W6adj: adjusted weight at 6 months; Diff1: difference of weights at birth to 3 months; Diff2: difference of weights at 3–6 months; ADWG1; average daily weight gain from birth to 3 months; ADWG2: average daily weight gain from 3 to 6 months. a,b: The means with the same letter in each column are not significantly different in Duncan’s multiple range test at 0.05 level.