37 



poor cows are improved, because better feeding is almost certain to 

 be tried. And quite certainly poor feeding is responsible for many 

 of our unprofitable dairy cows and even many unprofitable dairy 

 herds. 



As an example of the interesting information that can be 

 collected through the keeping of such records, the following record 

 made by one of the Ayrshires at the Central Experimental Farm is 

 worth reading. 



FLA VIA II. OF OTTAWA. 



This cow (see Plate 23) in her third lactation period, of 267 

 days, produced 9,364 Ibs. milk, testing 4 '417 per cent butter fat, 

 equivalent to 486-60 Ibs. butter, and netted a profit of $98.66, com- 

 puted as follows: 



486-6 Ibs. butter at 28c per Ib $136 25 



8,877-0 Ibs. skim milk at 20c per cwt 17 75 



$154 80 



2,158 Ibs. meal at He. per Ib $2697 



12,719 Ibs. roots and ensilage at $2 per ton 12 72 



1,694 Ibs. clover hay at $7 per ton 5 92 



2,420 Ibs. green feed at $3 per ton 3 63 



1,050 Ibs. straw at $4 per ton 2 10 



Four months pasture at $1 per month 4 00 



55 31 

 Total cost of feed including preparatory 



period from previous drying 55 34 



Net profit $9866 



