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Body weight and food intake during the model establishment period. A Body weight changes during the 6-week model establishment period, analysed by repeated measures analysis of variance. B Body weight distribution after 6 weeks, with the fourth and first quartiles (n = 12 each) of rats selected as obesity prone (OP) and obesity resistant (OR) rats, respectively. C The total food intake during the 6-week model establishment period, analysed by t-test. *P < 0.05, **P < 0.01
