Figure 2

Loading plots of principal component analysis conducted a posteriori according to variables highly involved in shared and diet-dependent metabolic pathways underlying RFI variation in corn- (a) and grass-silage (b) diets. TG_n denote triglycerides with increasing saturations (0, 1, or more for TG_0, TG_1 and TG_2, respectively); t-4-OH-Prol: trans-4-hydroxyproline; 3MH/creatinine: 3-methylhistidine to creatinine ratio; 1-MH: 1-methylhistidine, 3-MH: 3-,methylhistidine; SDMA: symmetric dimethyl arginine; ADMA: asymmetric dimethyl arginine; PCaa: total diacyl-phosphatidylcholine, PCae: total acyl-ethyl-phosphatidylcholines