FOODS ANIMAL PRODUCTION. 673 



Fattening range lambs, C. F. Curtiss and J. A. Craig {I<mia Sia. 

 Bid. Ji8.,2>J>- ^o^-.'ioG). — In discussing the fattening of range lambs 2 

 trials are reported. One of these has been noted from a previous 

 publication (E. S. E.., 9, p. 9T7). In the second trial, which included 

 191 lambs and covered 105 daj^s, the average daily gain per laml) was 

 0. 23 lb. , the cost of food per pound of gain -l. 3 cts. , and the dry matter 

 eaten per pound of gain 10. 7-1 lbs. The food supplied included oats, 

 bran, corn, oil meal, roots, hay, and corn fodder. Judged by results 

 of the 2 experiments, the authors believe that "there are fair profits 

 to be made from fattening range lambs under the conditions of our 

 State." 



Fattening lambs in comparison -with yearlings, C. F. Cuktiss 

 and J. A. Ckaig {Iowa Sta. Bui. Ji,8.,2>2>- 457-Ji.60). — Two tests on the 

 comparative economj' of feeding lambs and yearlings are reported, the 

 results of the first being quoted from a previous publication (E. S. R., 

 9, p. 75). In the second test 10 laml)s and 10 yearlings were fed for 

 91 and 70 days, respectively, oats, corn, oil meal, hay, beets, and corn 

 fodder. The average weight of the lambs at the beginning of the 

 trial was 90.2 lbs. and the j^earlings 117.7 lbs. The average daily gain 

 in the 2 lots was 0.29 and 0.23 lb., respectively; the cost of food per 

 pound of gain 1.78 and 5.51 cts., and the A.vj matter eaten per pound 

 of gain, 11.22 and 11.65 lbs. Both lots were sold and slaughtered. 

 The dressed weight of the lambs was 50.7 per cent of the live weight; 

 of the yearlings, 55.6 per cent. The authors believe these trials show 

 the superior value of lambs. "In view of the fact that the lambs also 

 bring a higher price on the market and they may be also marketed 

 earlier, the selection of them for winter feeding seems to be much 

 more preferable than to buy yearlings for this purpose." 



A study of pork production from the standpoint of the farm 

 and the market, C. F. Curtiss and J. A. Craig {Loioa Sta. Bid. 4S, 

 yp. 373-Ii61.,]_)l. l.)figs. ^^, dgnis. 2). — The work reported extended over 

 3 years, beginning with 1896. Data are reported on pigs and sows 

 before weaning and on pigs alone after weaning. In these tests the 

 comparative value of Berkshires, Poland Chinas, Chester Whites, 

 Duroc Jerseys, Yorkshires, and Tamworths was tested, crossbred 

 Tamworths and Yorkshires being also included in the first trial. 

 Considering the difl^erent breeds in the order mentioned the average 

 cost of a pound of gain in the 3-year test by the sows and pigs 

 before weaning was 1.29, 3.15, 3.27, 5.61, 1.83, and 2.22 cts., respec- 

 tiveh'. The cost in the case of the crossbred pigs was 6.80 cts. 

 The average cost of a pound of gain by pigs of the diflerent breeds 

 after weaning was 2.33, 2.23, 2.16, 2.27, 2.11, and 2.42 cts., respec- 

 tiveh', and 2.81 cts. bj" the crossbred pigs (tested only 1 year). In the 

 third trial the comparative value of wide and narrow-rations was also 

 tested with 2 lots of 5 Durocs each. The cost of food per pound of 



