1916] AlSriMAL PRODUCTION". 567 



that yeaned. The lambs also averased less in weight at birth in lot 3 than 

 in lot 4, were less active, and had a greater mortality. 



A comparison of the Shropshires with the Delaine-Merinos showexl their 

 respective average weight to have been 150..'5 and 102.9 lbs. At birth the Shrop- 

 shire lambs average 7.93 lbs. per head and the Delaine-Merino lambs 6.89 lbs. 

 The Shropshire ram lambs averaged 8.27 lbs. and the ewe lambs, 7.28 lbs., 

 while the Delaine-Merino ram lambs averaged 7.1 lbs. and the ewe lambs, 

 6.64 lbs. 



The Shropshire ewes averaged 141.6 lbs. per head at the end of four weeks, 

 after yeaning, a loss of 10.9 lbs. per head. The Delaine-Merino ewes averaged 

 104 lbs. per head, an average loss of 1.4 lbs. per head during this period. The 

 Shropshire lambs averaged 21.5 lbs. at the end of four weeks, an average gain 

 of 13 lbs. per head, while the Delaine-Merino lambs averaged 20.4 lbs. per 

 head, an average gain of 12.9 lbs. per head. Comparing lots 1 and 3 with lots 2 

 and 4, respectively, practically the same gains in live weight of Iambs were 

 made. 



In summarizing, it is concluded that the two winter periods show that a 

 ration composed of corn silage as a sole roughage supplemented with cotton- 

 seed meal for every 25 lbs. of corn silage fed is unsatisfactory for pregnant 

 ewes, even when supplemented by a good grain mixture. Lambs dropped by 

 ewes of the mutton and wool types, fed a ration composed of corn silage supple- 

 mented by cotton-seed meal, as compared with ewes of the same types fed a 

 roughage ration composed of corn silage and alfalfa hay, are heavier, weaker, 

 less active at birth, and have a greater mortality. Breeding ewes fed a ration 

 composed of corn silage supplemented by cotton-seed meal were less active 

 and showed lower vitality during the latter stages of pregnancy than ewes fed 

 corn silage and alfalfa hay as roughages. Lambs raised by breeding ewes 

 of both breeds fed corn silage as a sole roughage and cotton-seed meal as a 

 supplement made satisfactory gains and matured into good vigorous lambs. 

 Corn silage and alfalfa hay proved to be a satisfactory roughage when supple- 

 mented by a grain mixture composed of shelled corn, oats, wheat bran, and 

 linseed meal, 5:3:2:1, for maintaining pregnant ewes in vigorous condition for 

 yeaning. The cost of feeds consumed by lot 1 during the winter of 1911-12 

 was $3.19 per ewe, and in 1912-13, $2.38 ; for lot 2 during the winter of 1911-12 

 $4.11 per ewe, and in 1912-13, $3.46; for lot 3 during the winter of 1911-12, 

 $2.74, and in 1912-13, $2.03 ; and for lot 4 during the winter of 1911-12. $3.78, 

 and in 912-13, $2.85. The value of fleeces per head was $1,767 in 1912 and 

 $1,968 in 1913 for lot 1; $1,591 in 1912 and .$2,025 in 1913 for lot 2; .$3.02 in 

 1912 and $2,882 in 1913 for lot 3; and .$2,731 in 1912 and $2,795 in 1913 for 

 lot 4. 



The cost of maintaining Shropshire breeding ewes was greater than the cost 

 of maintaining Delaine-Merino ewes, and .slightly greater on a live-weight 

 basis. Delaine-Merino lambs made less rapid gains than Shropshire lambs. 

 Delaine-Merino ewes were observed to be more easily afflicted by "foul foot," 

 due to damp weather, than Shropshire ewes. Wintering pregnant ewes in an 

 open shed was conducive to the health and thrift of the ewes and lambs. Such 

 quarters, however, should have a southern exposure, a dry bed, and a well- 

 drained and spacious yard. 



Hog' and sheep pasturing demonstrations, R. W. Allen (Oregon Sta., Rpt. 

 Hood River Sta., 1915, pp. 27, 28). — Thirteen head of 73.5-lb. pigs were put on 

 a 3-acre tract of clover in the spring. Without supplementary feed, 0.57 lb. 

 per hog per day was made for 31 days. During the succeeding 30 days they 

 were also fed rolled barley at the rate of 0.5 lb. per hog per day, and an aver- 



