Silage Type Project+metagenome
Sample type: whole-plant corn silage; Location: Hebei Province, China (Shijiazhuang, Baoding, Xingtai); Sampling depth: 20 cm from silage surface; Sampling method: nine-point cross-section, 50 cm radius circles, mixed and quartered to 500 g; Preservation: vacuum-sealed, cold chain transport, dry ice storage; Sensory classification: CON (score 15-20, normal) or ASG (score <15, off-flavor); Silo zone: center (CON) or edge (ASG).