Investigations with Slieep. 483 



738. Relative economy of lambs and pigs. — Elsewtere (831) is 

 shown the feed required by pigs before weaning for 100 pounds 

 of gain. From these figures and those reported in Article 736 

 the data given below are deduced. 



The above data show that before weaning pigs require 231 

 pounds of meal and 534 pounds of skim milk for 100 pounds of 

 gain. Estimating 6 pounds of milk equal to one of meal, ac- 

 cording to the Danish formula, (888) we have 320 pounds of meal 

 or equivalent as the feed for 100 pounds of gain with pigs before 

 weaning. During the second period of the trial with lambs, the 

 following quantities of feed were required for 100 pounds of gain: 

 119 pounds of meal, 830 of milk and 262 pounds of green clover. 

 Estimating the milk at the same equivalent in meal as before, 

 and ten pounds of green clover equal to one of meal, we have 

 284 pounds of grain or grain equivalent as the feed required 

 for 100 pounds of gain with young lambs, or thirty-six pounds 

 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. 



739. The milking qualities of ewes. — Instructive experiments 

 were conducted by Shepperd, * at the Wisconsin Station, to de- 

 termine the milking qualities of high-grade Shropshire ewes. 

 Lambs at foot were muzzled except at regular periods, when each 

 was allowed to take milk from its dam while the attendant drew 

 milk from the other teat. The amount of milk yielded by the 

 ewes was determined by weighing each lamb on a delicate scale 



' Agiicultuml fScience, VI, pp. 397-405. 



