Table 3.

The scoring method for feather cover and gait.

Score	Feather cover	Gait	Assessment
1	Fewer feather cover, >50% scratch marks and some were picked off	Very hesitantly move, did not take a few steps to stop, even squat down	Worse
2	Few feather cover, 20 to 50% scratch marks and some were picked off	Walk irregular, small steps, very unbalanced	Bad
3	General feather cover, <20% scratch marks	Walk regularly and balanced	General
4	Good feather cover, complete and smooth, no scratch marks	Walking easily, regular gait, even striding, well balanced	Best