30 Bulletin 304 



A careful study of the above table, together with the tables from which 

 it was made, gives data from which conclusions may be drawn. These 

 are essentially the same as those drawn from the first year's work 

 (page 16). 



(i) Skimmed milk gave the best results as a substitute for whole milk, 

 yet the other foods, skimmed milk powder, Schumacher Calf Meal and 

 Blatchford's Calf Meal, gave fair results, good strong calves having 

 been raised by their use without any milk after the calves were four weeks 

 of age. 



(2) The dried skimmed milk powder was worth the most as a sub- 

 stitute for skimmed milk at an economical cost. 



(3) Schumacher Calf Meal gave about the same results as in 1907-8, 

 but it is not an economical food if the third-grade dried skimmed milk 

 powder can be procured for feeding. 



(4) Blatchford's Calf Meal is in about the same class as the Lactina 

 Suisse, which was tried in 1907-8. The calves did not do well on this 

 food and the cost of raising is much too high. 



SUMMARY FROM THE RESULTS IN I907-8 AND 1908-9 



(i) It is evident from the results of these experiments and those else- 

 where that good, strong, healthy calves can be raised without skimmed 

 milk or milk of any kind after the first thirty days. 



(2) Skimmed milk, hay, and grain, make the best substitute for whole 

 milk in raising calves. A calf fed on skimmed milk should reach a weight 

 of 300 pounds at five months of age, and the gain should be made at the 

 rate of one and one-half pounds per day, at a cost of less than five cents 

 per pound. 



(3) If skimmed milk is not at hand, the best substitute for it seems to 

 be third-grade dried skimmed milk powder. The average gains made 

 in this experiment were not so large as with the skimmed milk, but were 

 good. A calf fed on this food should reach a weight of 250 to 260 pounds 

 at five months of age, making an average gain of 1.25 pounds per day 

 at a cost of less than six and one-half cents per pound. 



(4) Schumacher Calf Meal seems to be the best commercial substi- 

 tute, in the nature of grain, for skimmed milk on the market at the present 

 time. The calves fed on this food gained on an average 1.25 pounds 

 per day in 1907-8 and i.io pounds per day in 1908-9. The average cost 

 per pound of gain was between eight and nine cents. 



(5) Blatchford's Calf Meal, while good enough for raising fair-sized 

 calves, is too expensive to feed ordinarily. 



