International Journal of Molecular Zoology, 2025, Vol.15, No.1, 10-19 http://animalscipublisher.com/index.php/ijmz 12 feed efficiency (Yang et al., 2020; Ye et al., 2024). Other pathways related to feed efficiency, such as muscle remodeling, growth hormone, IGF/PI3K/Akt signaling, fat metabolism, nitrogen cycling, etc., also involve multiple aspects such as nutrient utilization, energy balance and tissue development (Aggrey et al., 2014; Yi et al., 2015; Zhou et al., 2015; Wang et al., 2022). Figure 1 Enrichment analysis and gene networks for the candidate genes identified as associated with feed efficiency (FE) traits (Adopted from Marchesi et al., 2021) Image caption: Gene ontology (GO) analysis for terms of (a-c) molecular function and (d) biological processes; (e) Venn diagram summarizing the candidate genes found for the FE traits; (f) analysis of gene networks of candidate genes identified for feed intake (red nodes), body weight gain (green nodes) and feed conversion ratio (blue nodes). The gene network was constructed using STRING v10 (Adopted from Marchesi et al., 2021)
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