TABLE 2.
Quantitative traits loci (QTLs) related to four feed efficiency traits.
| Traita | Methodb | Chromosome | Region (Mb)c | Nd | QTL region (Mb)e | Traits related with QTL |
| FCR | a | 7 | 45.83–45.86 | 2 | 45.10–53.98 | Average daily gain (Quintanilla et al., 2002) |
| a&b | 17 | 1.15–2.69 | 7 | 0.44–20.053 | Body weight (Guo Y. M. et al., 2008b) | |
| a&b | 18 | 20.48–20.96 | 2 | 21.47–21.47 | Average daily gain (Wang et al., 2015) | |
| ADG | a&b | 2 | 147.07–147.11 | 2 | 148.27–148.27 | Body depth/width (Fan et al., 2009) |
| a&b | 3 | 0.35–0.54 | 3 | 1.79–4.20 | Body weight (Fan et al., 2009) | |
| a&b | 5 | 8.85–8.87 | 3 | 9.29–9.29 | Average daily gain (Rothammer et al., 2014) | |
| ADG\ADFI | b | 4 | 120.99–121.96 | 5 | 120.51–134.90 | Body weight (Bartenschlager and Geldermann, 2003) |
| ADFI | a&b | 9 | 128.77–129.09 | 2 | 128.00–128.99 | Daily feed intake (Reyer et al., 2017) |
| 128.99–147.51 | Body weight (10 weeks) (Yoo et al., 2014) | |||||
| ADFI\RFI | a&b | 4 | 105.57–106.83 | 6 | 105.64–105.64 | Feed conversion ratio (Wang et al., 2015) |
| 106.51–124.31 | Average daily gain (Malek et al., 2001) | |||||
| a&b | 8 | 102.88–105.56 | 6 | 107.04–113.33 | Feed intake per feeding (Ding et al., 2017) | |
| RFI | b | 9 | 112.25–112.31 | 3 | 114.32–123.52 | Lipid accretion rate (Duthie et al., 2008) |
| a | 11 | 5.38–6.37 | 2 | 6.01–6.99 | Residual feed intake (Jiao et al., 2014) | |
| 16.03–16.08 | 3 | 15.85–15.85 | Feed conversion ratio (Horodyska et al., 2017) |
aFCR, Feed conversion ratio; ADG, Average daily gain; ADFI, Average daily feed intake; RFI, Residual feed intake. ba = linear model GWAS (LM-GWAS), b = single-step GWAS (ssGWAS). cRegion (Mb) = the merging of neighbored significant SNPs. dN = Number of significant SNPs in the region. eQTL region (Mb) = The QTL regions reported in Pig QTLdb. Values in bold had an overlap region with QTLs for FE related traits in Pig QTLdb.