货物变色腐烂原因分析：高温保存不当或虾体本身品质不良

From the on-site situation, the main problem with the goods is discoloration, and some even have a rotten smell. This is usually caused by improper storage of the goods (exposure to high temperatures). Of course, it is also possible that the quality of the goods themselves is poor, such as the shrimp body being discolored before being caught.