Table 3.
LW (g), ADFI (g/d), ADG (g/d), and FCR of the four genotypes in the two farming systems.
| Conventional System | Free-Range System | SEM | p-Value | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| BP | RM | BP × S | RM × S | BP | RM | BP × S | RM × S | G | FS | G × FS | G | FS | G × FS | |
| LW 21 d (g) | 233 | 207 | 271 | 258 | 234 | 205 | 275 | 256 | 1.98 | 2.04 | 2.11 | 0.679 | 0.912 | 0.881 |
| LW 84 d (g) | 1519 b | 1558 b | 2016 a | 2025 a | 1537 b | 1495 b | 1955 a | 1984 a | 11.53 | 12.21 | 12.96 | 0.043 | 0.351 | 0.565 |
| ADFI g/d | 72.7 b | 74.1 b | 76.3 b | 79.4 b | 95.7 a | 97.7 a | 94.6 a | 93.2 a | 1.6 | 1.6 | 1.9 | 0.729 | 0.036 | 0.028 |
| ADG g/d | 19.8 b | 20.8 b | 25.6 a | 25.4 a | 20.3 b | 19.3 b | 25.1 a | 24.6 a | 0.33 | 0.37 | 0.38 | 0.046 | 0.493 | 0.515 |
| FCR | 4.77 b | 4.62 b | 3.86 a | 3.67 a | 5.53 d | 5.67 d | 4.65 c | 4.51 c | 0.13 | 0.16 | 0.24 | 0.048 | 0.036 | 0.021 |
Abbreviations: SEM, standard error of the mean; G, genotype; FS, farming system; G × FS, interaction between genotype and farming system; LW, live weight; ADFI, average daily feed intake; ADG, average daily weight gain; FCR, feed conversion ratio; BP, Bionda Piemontese; RM, Robusta Maculata; BP × S, Bionda Piemontese × Sasso; RM × S, Robusta Maculata × Sasso. Values with superscript a, b, c, d are considered significantly different. p-values are considered significant when p < 0.05.