Calf Rearing. 



305 



last 30 days, of the middlings to 1 lb. per day. These calves did re- 

 markably well, gaining on an average a little over 2 lbs. per head 

 per day. ' ' 



480. Concentrates compared. — During trials lasting 60 to 90 days 

 at the Iowa Station^ Curtiss fed milk fresh from the farm separator, 

 having a temperature of 90° F., to Short-horn and Holstein calves 

 weighing 180 to 200 lbs. An average allowance of 15.4 lbs. of milk 

 and 2.9 lbs. of hay was given to each, with either linseed oil meal, 

 sieved ground oats, or cornmeal with a little flax seed. Eight calves 

 were fed each ration with the following results: 



Curtiss writes : ' ' The results of all the investigations made at this 

 station strongly indicate that it is not only unnecessary but poor 

 economy and poor practice in feeding to use a highly nitrogenous 

 product like oil meal in combination with separator skim milk. The 

 practice has neither logical reason nor scientific theory for its sup- 

 port; and in the corn-belt states, with their surplus of corn and oats, 

 there is no necessity for the purchase of a high-priced nitrogenous 

 product to be used in supplementing the skim-milk ration." 



Otis of the Kansas Station- found that calves fed whole corn v/ere 

 less subject to scours and did better than when given ground corn 

 (corn chop). Ground kafir, however, gave better results than whole 

 kafir. 



At the Virginia Station'' Fain and Jarnagin secured a gain of 1.4 

 lbs. daily when feeding calves cornmeal with skim milk, and 1.6 lbs., 

 or 14 per ct. more, when whole corn was used. Barley was found to 

 be an excellent grain to supplement skim milk. (171) Bran was used 

 to great advantage in teaching the calves to eat grain, but no ad- 

 vantage, either in the rate of gain or the appearance of the calf, was 

 secured from adding bran to a ration of shelled corn and skim 

 milk. (165) 



Bui. 35. 

 21 



Bui. 126. 



Bui. 172. 



