414 



TWENTY-THIRD ANNUAL YEAR BOOK— PART VI 



produce these results, and in every case the animal which received 

 milk in its diet develops normally, while the animal deprived of milk 

 is backward and under-weight. 



In noting the value of milk as a food it is understood that refer- 

 ence is made to milk that is produced from healthy cows and handled 

 with due regard to its cleanliness. This department, for a number 

 of years, has been doing much work to improve and keep safe the 



These two dogs were fed the same diet except that the larger dog re- 

 ceived milk. They are both from the same litter. 



milk supply of the various cities of the state. Frequent tests and 

 inspections of the dairies are made with this in view. Many cities 

 have passed ordinances regulating the quality of milk. The value 

 of milk as a food and the need to have it pure is generally realized. 

 To stimulate interest among dairymen for milk of high quality, 

 the department holds an annual market milk contest between the 

 different cities in the state. This contest is held the week previous 

 to the Dairy Cattle Congress and the results and samples of the milk 

 are placed on display there. Council Bluffs had the highest score 

 with 82.67 points; Mason City was second with 80.88 points, and 

 Dubuque third with 78.57 points. 



