Fig. 4
From: Uncovering sperm metabolome to discover biomarkers for bull fertility
Partial-Least Squares Discriminant Analysis (PLS-DA) scores plot of metabolite profiles generated by GC–MS analysis of bull spermatozoa from high (HF) and low fertility (LF) bulls. Plots showed a clear cluster distinction between HF (n = 5) and LF (n = 5) groups. Supervised PLS-DA was obtained with 2 components. The explained variances are shown in parentheses