284 EXPERIMENT STATION RECORD. 



the former ration 3.95 lbs. of feed and on the latter 3.47 lbs. was required- per jiound 

 of gain. The author's conclusions follow: 



"The results of these experiments, like those of several previously made, indicate 

 that in feeding pigs corn should be combined with other feeds to get the best returns. 

 Experiments indicate that silage can not be profitably substituted for a part of the 

 grain ration with pigs. In this expei-iment it was fed in addition with some profit, 

 giving Cjuicker gains and keeping the animals in better condition. 



" Soy beans made an excellent pig feed mixed with corn in the proportion of 1: 2. 

 Being rich in protein it is recommended as an especially efficient addition to the 

 ration when corn composes the larger part. Dried distillery grains proved to be a 

 poor pig feed except in small proportions. When fed as J or 5 of the ration with 

 corn it was unprofitable. Where it composed i of the ration very good returns were 

 obtained. Cotton-seed meal may be profitably used to finish hogs for market. In 

 such cases it may be safely fed in quantities of 2 lb. per pig daily and then omitted 

 during periods of alternate weeks. 



Analyses are reported of the shelled corn, dried distillery grains, soy beans, corn 

 and soy bean silage, and hominy meal used in the above test. 



Growing swine of various breeds and crosses, T. Shaw {M'mnemta Stu. Bui. 

 73, pp. 73-108, figs. 21). — In the first of two tests of the comparative gains made by 

 different breeds and crosses of pigs, the following were represented : Pure-bred Poland 

 Chinas, Poland ('hinas (corn-fed), pure-bred Tarn worths, large improved Yorkshires, 

 cross-bred Tamworth-Poland Chinas, large improved Yorkshire-Poland China^, 

 second cross large imjiroved Yorkshire-Berkshires, third cross large improved 

 Yorkshire-Berkshires, 3 pigs of each breed constituting a lot in every case except the 

 cross-bred Tamworth-Poland Chinas, when only two were u.sed. Beginning when 

 they were 10 weeks old the pigs were fed for 28 weeks skimmed milk, ground grain, 

 and during the season some green feed ( rape, corn, and mangel-wurzels) . The grain 

 consisted of shorts and corn 3:1, shorts, corn, and barley 2:1 :1, and corn and barley 

 1:1, on an average 3.43 lbs. of grain being consumed per head daily. Considering the 

 ration as a whole, meal constituted a little over 70, skimmed milk a little over 9.5, and 

 green feed a little less than 20.5 per cent. At the beginning of the test the pigs 

 weighed on an average 44.12 lbs., and the average daily gain was 0.S9 lb. per head. 

 The greatest gains (131 and 128 lbs. respectively) were made by the second cross 

 Yorkshire-Berkshires and the Yorkshire-Poland Chinas, and the least gain (84 lbs. 

 and 88 lbs. respectively) by the ccjrn-fed Poland C'hinas and the Poland Chinas fed 

 the same ration as the majority of the lots. Gain was most economically made by 

 the Tamworths and the large improved Yorkshires, costing, respectively, 2.01 and 

 2.02 cts. per pound ; the most expensive gains, costing 2.52 cts. per pound, were made 

 by the pure-bred Poland Chinas. 



• The second test was made under the same conditions as the first. The breeds and 

 crosses represented were as follows: Pure-bred Tamworths, large improved York- 

 shires and Poland C'hinas, cross-bred, large improved Yorkshire-Berkshires, large 

 improved Yorkshire-Poland Chinas, large improved Yorkshire-Poland Chinas 

 (Minnesota bred dam), Tamworth-Poland C'hinas, and third cross large improved 

 Yorkshire-Berkshires. At the beginning of the test the weight was 48.38 lbs. each 

 on an average. The average gain was 1.11 lbs. per head daily. The greatest gain 

 (166 lbs.) was made by the Yorkshire- Poland Chinas, and the least gain (119 lbs.) 

 by the pure-bred Tamworths. The range in the cost of a pound of gain was from 

 2.11 cts. in the case of the Yorkshires to 2.48 cts. in the case of the pure-bred Poland 

 Chinas. Some of the conclusions drawn from the tests as a whole follow: 



' ' These experiments do not sustain the view that the results will be less satisfac- 

 tory from each succeeding cross of Yorkshire on Berkshire. Swine of the lard- 

 producing types are not more cheaply grown up to the age of 196 days than swine 

 of the bacon-producing types. Pork can be made more cheaply from swine of the 



