DAIRY ACCOUNTS DAILY RECORD 207 



the third, it increased again the fifth week to 4.6, and 

 continued with similar extreme variations through- 

 out the 13 weeks, as shown in the diagram. Others 

 also showed a similar lack of uniformity. These re- 

 sults indicate either carelessness in preparing milk 

 for delivery, that is, delivery to the consumer; rich 

 milk from certain animals in the herd one day and 

 poor milk from other animals the next, or careless- 

 ness in dipping the milk, the first customer receiv- 

 ing milk from the top of the can and the last from 

 the bottom. It is very probable that the uniformity 

 was affected by both these causes, and shows the 

 importance of properly mixing the herd milk, also 

 of delivering milk in bottles, insuring each customer 

 a uniform product from day to day. 



Is it possible to have a uniform product? The 

 author's experience with a herd of 25 to 30 milking 

 cows has a bearing upon this subject. The accom- 

 panying tabulation gives the average per cent, of fat 

 in the mixed milk from this herd as well as the 

 maximum and minimum of the individual cows, the 

 number of fresh cows introduced into the herd, and 

 the number of cows milking during the month. The 

 fresh cows were introduced when necessary to sup- 

 ply a uniform quantity of milk from day to day 

 rather than for the direct purpose of regulating the 

 composition. Corresponding results may be ex- 

 pected from any similar herd under good conditions 

 of feeding and management. The tabulation shows 

 that the milk of individual animals varied in com- 

 position from month to month, but such variation 

 did not materially affect the average composition of 



