16 



BULLETIN 631, L T . S. DEPARTMENT OP AGElCrLTTBE. 



ity. "When the test began, the 46 calves averaged 371 pounds in 

 weight. During the summer months the calves had run with their 

 dams upon a reasonably good pasture. These calves, during the pas- 

 ture season, became infested with cattle- ticks, as the cattle grazed in 

 a very large wooded pasture of 20.000 acres and it was a difficult 

 matter to find all of them at each dipping period. The ticks doubt- 

 less interferred with the development of the calves. The calves that 

 were used in the previous year's work were raised in a pasture that 

 was almost, if not quite, free of ticks, and they were considerab]y 

 heavier than the calves used in the present test. 



Table 7, — Weights, total 



gains, and average 

 Mar. 3, 1913 ) . 



daily gains (Nov. 29, 1912, to 



Lot Number 

 No. of calves. 



Ration. 



Average Average 



initial final 



weight weight 



of calves, of calves. 



Average 

 total 



gain per 

 calf. 



daily- 

 gain per 

 calf. 



/Cottonseed meal 



\Cottonseed hulls 



I Cottonseed meal, tvro-thirds. 

 Corn chop, one-third 

 Cottonseed hulls 

 Corn silage 



[Cottonseed meal 



15 ^Cottonseed hulls 



I Corn silage 



16 



15 



Pounds. 

 365 



Pounds. 

 505 



Pounds. Pounds. 

 140 1.49 



115 



1.49 



It is interesting to note the effect upon the daily gains of calves 

 when one-third of the ration of cottonseed meal is replaced by corn 

 chop. Each calf in lot 3 ate, on the average, 2.63 pounds of cotton- 

 seed meal each day. Each calf in lot 2 consumed 1.76 pounds of 

 cottonseed meal plus 0.88 pound of corn chop each day; that is, each 

 pound of corn chop replaced one pound of cottonseed meal. When 

 this was done the last column in Table 7 shows that the daily gains 

 were reduced materially. That is. one pound of corn was not equal 

 to one pound of cottonseed meal as a fattening ration for calves. In 

 lot 3, where cottonseed meal, cottonseed hulls, and corn silage were 

 fed, the calves gained at the rate of 1.49 pounds daily. In lot 2, 

 where a part of the cottonseed meal was replaced by corn chop (one 

 pound of corn chop replacing one pound of cottonseed meal), the 

 average daily gains dropped to only 1.23 pounds. The calves in lot 

 1, where only cottonseed meal and cottonseed hulls were fed, gained 

 at the rate of 1.49 pounds daily, or exactly the same as the daily 

 gains recorded in lot 3. 



QUANTITY AND COST OF FEED REQUIRED TO MAKE 100 POUNDS 



OF GAIN. 



In the following statement cottonseed meal is valued at $26 a ton, 

 cottonseed hulls at §7 a ton, corn silage at S3 a ton, and corn at 70 

 cents a bushel. These prices represent fairly accurately the average 



