Table 3.

Estimation models for fat content based on three algorithms.

Model	Training Set			Testing Set
	MAE	MSE	R 2	MAE	MSE	R 2
GBDT	0.3267	0.1907	0.7201	0.3245	0.1926	0.7172
XGBoost	0.1063	0.0241	0.9645	0.1487	0.0573	0.9158
RF	0.1046	0.0253	0.9627	0.1253	0.0410	0.9399