446 



Feeds and Feeding. 



after that skim milk, ground oats, and green clover were supplied. 

 During the last 21 days hay was fed in place of the milk. 



Rearing lambs on cow's milk and other feeds. 



At the close of the last period, when 167 days old, the lambs aver- 

 aged 79 Ibs. each, showing a daily gain, including birth weight, of 

 nearly 0.5 Ib. each. The heavy gains which followed the use of cow's 

 milk suggest its profitable use in forcing lambs to meet the require- 

 ments of special markets, e. g. "Christmas lambs." (301-2, 474, 881-5) 



724. Relative economy of lambs and pigs. From the figures for 

 the second period of the preceding article and those in Article 816 

 the following data are deduced: 



Feed required for 100 Ibs. of increase by young pigs and lambs. 



Estimating that 6 Ibs. of skim milk equals 1 Ib. of meal in feeding 

 value, according to the Danish formula, (883) we have 316 Ibs. of 

 meal or its equivalent as the feed required for 100 Ibs. of gain with 

 unweaned pigs. Using the same ratio for the skim milk fed to the 

 lambs and estimating that 10 Ibs. of green clover is equal to 1 Ib. of 

 meal, we have 284 Ibs. of grain, or its equivalent, as the feed re- 

 quired for 100 Ibs. of gain with young lambs, or 32 Ibs. less than 

 that required by the pigs. From this it is apparent that lambs make 

 at least as economical gains for feed consumed as do pigs of the same 

 age. (472) 



725. Iowa Station breed test. The most extensive breed test con- 

 ducted with sheep in this country was made by Wilson and Curtiss 

 at the Iowa Station. 1 In the first trial there were 10 wethers in each 



1 Buls. 33, 35. 



