DAIRY FARMING DAIRYING. 



787 



nitrogenous ration, suggested by the station, and the herds tested for 

 a second period of 12 days. Full data for the tests are given, from 

 which the following summary is taken: 



Original and suggested rations fed to cows on 2 farms in Connecticut. 



Berd. 



Average daily ration per 1,000 lbs. live weight. 



Digesti- 

 ble pro- 

 tein. 



Digesti- 

 ble fat. 



Pounds. 



/Original 1. 84 



i Suggested 2. 93 



/Original 3. 13 



[Suggested. - i 3.66 



Pound. 

 0.72 



.til 

 .72 

 .97 



," i - r,st 1 i Nutritive Fuel 

 lib- carbo- ,. ,. , _ 



hydrates. ratxo ' ' alue ' 



Pounds. 



14.99 

 13. 02 

 15.94 

 14.21 



1 :9.0 

 1:4.9 

 1:5.6 

 1:4.5 



Calories. 

 34, 350 

 32,400 



38, 5d0 

 37, 350 



"The total cost of the ration [of herd A] remained practically the same, lmt the 

 net cost was greatly reduced in the second test, owing to the higher value of the 

 manure. The average daily yield of milk was increased during the second test 0.7 

 lb. and the butter 0.05 lb. over that obtained in the first test. The total cost of Iced 

 to produce 100 lbs. of milk was reduced 1 cts. and the cost of feed for a pound of 

 butter was reduced 2 cts. in the second test. . . . 



"The total cost of each of the rations [of herd B] was large although the second 

 ration was slightly less expensive than the first. Quite a number of cows in the 

 herd were well along in the period of lactation, and were no doubt being- fed too 

 hea\ ily for the amount of product they were giving." 



The results of the previous studies on the rations of cows on dairy 

 farms are summarized, making 38 rations in all. Of these, 29 •• actually 

 represent the feeding practice of these dairymen." The minimum, 

 maximum, and average nutrients of these 29 rations are given below, 

 together with feeding standards. 



Rations fed by 29 Connecticut dairymen, and feeding standards. 



a Mentzel and von Lengerke's Landw. Kalender, 1897. 



In 9 of the 38 rations studied there is opportunity for comparing a 

 wide ration with a narrower ration fed to the same herd, the narrower 

 ration being fed from 1 to 4 weeks after the wide ration, so that the 

 cows were somewhat further advanced in the period of lactation. The 

 data for these 9 comparisons are summarized. 



