16 BOARD OF AGRICULTURE. 



Average loss on each cow between evening weight, when full, and 

 morning weight, when empty, 56.66 pounds. Average loss per cent, 

 on evening weight, 5.83. Nine cows from eight to ten years old 

 inclusive, average age nine years and three months, and weighing 

 9,345 pounds evening weight, lost in the morning 490 pounds. 

 Average loss on each cow, 54.44 pounds. Average loss per cent, on 

 the evening weight of each of the nine cows, 5.24 per cent. 



Twelve young cows, from five to seven years old inclusive, average 

 age five years and six months, and weighing 11,050 pounds evening 

 weight, lost in the morning 700 pounds. Average loss on each cow, 

 58.33 pounds. Average loss per cent, on evening weight of each of 

 the twelve cows, 6.33. The twelve young cows lost 1.09 per cent, 

 more between evening and morning weight than the nine old cows. 

 Six of the twelve young cows were milked both morning and evening 

 before weighing, and but two of the nine old cows were milked before 

 weighing. This may account in part for the greater loss on the 

 young cows. 



The number of days after calving of the nine old cows was 150.6, 

 while the number of days after calving of the twelve young cows 

 was 137.5. This may be another reason why the young cows lost 

 more between morning and evening weight than the old cows. Aver- 

 age number of days after calving, 143. Daily average of milk 143 

 days after calving, 25.28 pounds. Daily average of milk on the aver- 

 age morning and evening weight, 2.83 per cent. The average time after 

 calving of the nine old cows was 150.6 days, and their daily flow of 

 milk was 2.37 per cent, on their average weight. 



The average time after calving of the twelve young cows, 137 days, 

 and their daily flow of milk, was 3.30 per cent, of their average 

 weight. The daily flow of milk from the twelve young cows being 

 greater than that from the nine old cows, the difference between the 

 evening- and morning flow would be greater : hence, an additional 

 reason for the greater loss between the evening and morning weight. 

 of the young than the old cows. 



