668 



EXPERIMENT STATION EECORD. 



It is concluded that " a ton of silage as used in this experiment was approxi- 

 mately equal to one-half ton of clover hay. Estimated on the basis of net 

 profit per steer, a ton of dry matter in the form of corn silage yielded 50.3 

 per cent greater value than a ton of dry matter in the form of stock corn. 

 The addition of clover hay to a ration in which silage was used was decidedly 

 profitable in this test. It appears from the data given that fattening cattle 

 which receive com silage as the only roughage do not continue to do well for 

 longer than 90 days. 



" One of the most conspicuous features of this test was the notable superior- 

 ity of the ration in which a nitrogenous concentrate was used. If the most 

 extensive use is to be made of corn silage in fattening cattle it is desirable 

 to feed some high protein concentrate in the ration. It is evident from the 

 data given that it takes less grain in the form of shelled corn to fatten 2-year- 

 old steers when corn silage composes a part of the ration." 



Calf-feeding' experiments with separated milk and oils, J. Hendrick 

 (Trans. Highland and Agr. Soc. Scot., 5. ser., 25 {1913), pp. 259-282) .—Three 

 series of experiments of 5 weeks each were conducted to demonstrate the value 

 and economy of feeding calves on separated milk and substitutes, and to com- 

 pare the relative values as substitutes of cod liver oil and cotton-seed oil with 

 whole milk feeding. A summary of results is shown in the following table: 



Results of calf-feeding experiments with separated millc and oils. 



Although the larger gains were made on the whole milk, in the case of the 

 substitutes used the difference was not very serious, and was also small be- 

 tween the two substitutes. It is concluded that " cotton-seed oil may be fed 

 to calves as a substitute for the fat of milk in quantities up to 3 oz. per calf 

 per day, and that so far as these experiments show, it will give as good or 

 nearly as good a result as cod liver oil and at a slightly lower cost." It is fur- 

 ther stated that " placing a fair valuation upon whole and separated milk, 

 calves can be fed on separated milk, oil, and meal gruel at a very much less 

 cost per head and at a very much less cost per pound of increase than upon 

 whole milk." 



Following these feeding tests the calves were fed alike and sold as 2-year 

 olds with a resulting average increase from weaning until sent to the butcher 

 of 911 lbs. for the whole milk lot, 944 lbs. for the lot fed separated milk and 

 cod liver oil, and 898 lbs. for that on separated milk and cotton-seed oil. 



The experiments in general indicate that separated milk and substitutes may 

 be fed to calves with safety and profit. 



The employment of whole milk and of corrected skim, milk in the rearing 

 of calves and pigs, O. Wellmann (,Kis4rlet. Kozlem.. 16 (1913), No. 2, pp. 

 118-258; ahs. in Internat. Inst. Agr. [Rome], Mo. Bui. Agr. Intel, and Plant 

 Diseases, 4 (1913), No. 7, pp. 1062, 1063).— These experiments demonstrated the 

 possibility of the economical use of skim milk for calf and pig feeding when 

 corrected with either wheat and rye meal, with flour starch sweetened with 



