10 



INVESTIGATION IN ANIMAL NUTRITION 



supervision of these feeding experiments we would in the future in- 

 verse the proportions of bran and flour middlings in rations for beef- 

 production. But the amount of grain fed during the first year cannot 

 be materially reduced if the calves are to weigh 600 pounds when they 

 are one year old. So far as the feeding and management of these 

 calves during the first year is concerned, any farmer can do the same 

 with a fair promise of profit. 



TABLE XII 



SUMMARY OF THE FIVE GROUPS, GIVING AVERAGE AMOUNTS OF THE VARIOUS 

 FEED-STUFFS IN THE GRAIN MIXTURE 



Period | Weight | Grain | Corn | Bar ley | Bran |QiTMeal|Midds.| Oats 



During the second year the steers kept on continuous stall- feeding 

 consumed on an average 3,298.2 pounds of grain, composed of 1,007.9 

 pounds of ground corn, 250.8 of ground barley, 768.3 of bran, 644.7 of 

 linseed meal, 323.4 of flour middlings, and 303.1 of ground oats. It is 

 not claimed 'that the proportion in which the different concentrates 

 were fed was the best that could be made in practical feeding. The 

 aim was to make sure that they were provided with an ample supply of 

 proteids and soluble ash so they could make maximum body growth 

 under rational methods of feeding. Data obtained, but which cannot 

 be presented now, indicate that oats or flour middlings could have been 

 substituted for about half the oil meal fed during the second year and 

 up to the time when the 1,500-pound weight was reached. 



The record shows that under a system of continuous stall-feeding 

 the steers consumed up to the time their average weight was 1,200.9 

 pounds: 4,436.6 pounds of grain, of which 1,243.4 pounds was corn, 

 357.2 barley, 1,115.5 bran, 912.5 linseed meal,' 408.4 flour middlings, 



