treatment  culture_day           cell_count  
Moderate_C  Day_4                 121666      
Moderate_C  Day_4_post_dilution   25000       
Moderate_C  Day_5                 51700       
Moderate_C  Day_5_post_dilution   25000       
Moderate_C  Day_6                 61450       
Moderate_C  Day_6_post_dilution   25000       
Moderate_C  Day_7                 76125       
Moderate_C  Day_7_post_dilution   25000       
Moderate_C  Day_8                 70750       
Moderate_C  Day_8_post_dilution   25000       
Moderate_C  Day_9                 76375       
Moderate_C  Day_9_post_dilution   25000