FOODS ANIMAL PRODUCTION. 



461 



milk are given in the bulletin. It is difficult, liowever, to see how under 

 the conditions of this experiment the data obtained can furnish any 

 reliable indications on these points. The scoring of the butter on the 

 basis of 45 points was as follows: Cabbage period 3S, mangel-wurzel 

 period -43, turnip period 40, corn fodder period 43, and silage period 40. 



"The creamery experts report tli;it tlie butter Ironi the, cabbage ration did not keep 

 well, but gradually became tainted. . , . 



"Butter from the turnips scored 40; it was colorless. Tlie cows were fed after 

 milkiug to avoid the effects of the roots as inucli as that would enable them to 

 do so. . . 



"Tliehigh ([uality of mangel butter, scoring equal to that from corn fodder, with 

 the other good qualities of the vegetable, commends it to the dairjnnen of Iowa." 



The estimated cost of food per pound of butter ranged from 9.6 cts. 

 in the corn fodder period to 11 cts. in the mangel-wurzel period, but the 

 prices of feeding stuffs used in this calculation are not given. 



At the conclusion of the trial 4 cows were fed rnta-bagas. The butter 

 produced scored 40points. 



Effect of food on the per cent of fat in milk, 11. H.Dka^ [Ontario 

 Agl. Col. and Exptl. Farm Rpt. 1893, pp. 148-150). — A comparison of 

 pasturage, with and without grain, witli barn feeding. Fifteen milch 

 cows, which had been receiving a ration of 1 bu. of roots, 20 lbs. of 

 hay, 4 lbs. of bran, and 4 lbs. of ground wheat in the barn, were turned 

 out to pasture May 20, and divided into 2 lots. For the first 4 weeks 

 lot 1 (8 cows) received pasturage, with only 1 lb. of bran per day, and 

 lot 2 (7 cows) received a grain ration — equal parts of peas, bran, and 

 wheat, 1 lb. of each at first, which was increased to 3 lbs. During the 

 second 4 weeks lot 1 received the grain ration of lot 2, and lot 2 received 

 equal parts of bran, cotton-seed meal, and linseed cake, increasing 

 from 1 lb. to 3 lbs. of each. For 2 weeks following this lot 1 had 

 pasturage and green peas and oats, and lot 2 was continued on the 

 same grain ration. The results of tests of composite samples of the 

 milk of each cow are tabulated. The ijercentage of fat invariably 

 increased when lot 1 (no grain) was turned to pasture, and in the case 

 of lot 2 increased with 4 cows and decreased with 3 cows, which 

 brought down the average. The average results by lots are as follows : 



Composition and yield of milk'On ham feeding and pant iiraije. 



