Table 3.
Regression coefficients of the ruminal fluid and feces metabolites associated with feed efficiency and water intake phenotypes of Nelore bulls.
| Metabolite | MBW | DMI | RFI | RADG | FE | OWI | WI | RWI | |
|---|---|---|---|---|---|---|---|---|---|
| Ruminal Fluid | Acetone | − 0.14 (0.38) | − 0.66 (0.25) | − 0.68 (0.25) | 2.27 (0.38) | 12.61 (0.38) | − 0.001 (0.53) | − 1.04 (0.037) | 0.071 (0.52 ) |
| Aspartate | − 0.047 (0.98) | − 6.62 (0.038) | − 6.44 (0.038) | 24.70 (0.17) | 177.79 (0.038) | − 0.013 (0.43) | − 6.40 (0.038) | 0.067 (0.98) | |
| Choline | − 0.070 (0.88) | − 1.34 (0.13) | − 1.25 (0.13) | 8.82 (0.079) | 41.70 (0.079) | − 0.0039 (0.34) | − 1.73 (0.079) | − 0.006 (0.97) | |
| Dimethylamine | − 0.147 (0.81) | − 3.14 (0.085) | − 2.92 (0.098) | 20.054 (0.044) | 105.52 (0.035) | − 1.34 (0.095) | − 4.24 (0.035) | − 0.264 (0.58) | |
| Feces | C14:0 | 0.14 (0.97) | − 4.43 (0.004) | − 4.60 (0.004) | 0.84 (0.96) | 73.55 (0.16) | − 0.006 (0.55) | − 2.66 (0.16) | 0.042 (0.96) |
| C22:1n9 | 0.07 (0.076) | − 0.086 (0.65) | − 0.066 (0.77) | 0.242 (0.89) | 4.47 (0.23) | − 0.001 (0.076) | 0.03 (0.89) | − 0.06 (0.068) | |
| Hypoxanthine | − 0.34 (0.66) | 3.86 (0.044) | 3.98 (0.044) | 0.83 (0.93) | − 62.18 (0.30) | 0.006 (0.66) | 2.22 (0.30) | 0.035 (0.92) | |
| Methylamine | 0.36 (0.48) | − 2.80 (0.19) | − 2.66 (0.19) | 10.25 (0.37) | 110.93 (0.058) | − 0.013 (0.19) | − 2.33 (0.24) | − 0.404 (0.38) |
*Only for significantly associated metabolites (FDR adjusted P value ≤ 0.1), the coefficient from the linear model is given within the cell and the FDR adjusted p value within parentheses. MBW metabolic body weight, DMI dry matter intake, RFI residual feed intake, RADG residual average daily gain, FE feed efficiency, OWI observed water intake, WI water intake, RWI residual water intake.