312 



BUTTER RECORD OF THE BUCKHOLD HERD 

 FOR THE YEAR OCTOBER 1ST, 1901, TO 

 SEPTEMBER 30TH, 1902. 



In the following paper two distinct records are given : A, 

 shewing the total amount of butter made in the year and 

 the average per cow for the year ; and B, shewing the in- 

 dividual record of every cow during the year. Both records take 

 account of all cows that have been in the herd, whether for part 

 or for the whole of the year. All cattle six days after the birth 

 of their first calf, whether the calf is premature or otherwise, 

 are counted as cows in the herd so long as they remain at 

 Buckhold. 



Record A. 



The annual record A (p. 316) is obtained by adding 

 together three items : (1) the amount of butter that has been 

 mad a in the year, this amount being taken from the butter sale 

 book ; (2) the amount of butter contained in the milk and cream 

 that was used at the house or farm, this being calculated by the 

 Gerber butyrometer* ; (3) the amount of butter given by the 

 cows when away from home at the shows, this being arrived at by 

 calculation. 



It will be seen that the average amount of butter made by 

 the herd in the year is at the rate of 451^ lb. per cow, and that 

 the average for the cows that were in the herd all the year is 

 45of lb. per cow. 



To find the average number of cows that have been in the 

 herd during the year, it will be necessary to take account of 



* Of course, strictly speaking, no butter is contained in the milk or cream, only 

 butter- fat. By means of the Gerber chemical test the proportion of butter-fat in any 

 milk can be quickly arrived at. It has been estimated that in 100 lb. of butter there 

 should be 12 lb. of water and 881b. of butter-fat. If, therefore, the proportion of 

 butter-fat in any given weight of milk or cream is known, the amount of butter which 

 could be made from that milk or cream can be estimated. For convenience in this 

 paper " milk containing so much butter " and " cows giving so much butter " will be 

 written. 



