FIFTY-FIRST ANNUAL CONVENTION 55 



Under ordinary conditions, the usual practice of milk- 

 ing twice daily is sufficient. The intervals should be as 

 nearly equal as possible. By milking cows that are heavy 

 producers three times a day, the yield can be materially 

 increased depending upon the amount of milk they produce. 

 Three times milking will increase the production about ten 

 per cent for cows giving from forty to fifty pounds of milk; 

 while, for those giving sixty pounds, the increase is about 

 twenty per cent. Ordinarily, the increase in production of 

 the average cow by milking three times is not sufficient to 

 pay for the extra time and labor require*d to do the extra 

 milking. 



