366 EXPERIMENT STATION EECORD. 



tured on clover and fed corn to 4.46 cts. with the lot on corn and shorts 2 : 1 

 fed in a dry yard, and was on an average 3.92 cts. 



In these tests data are given regarding the shrinkage on slanghtering and the 

 profits are discussed at length on the basis of corn meal, meat meal, and tankage 

 at different prices. Some of the conclusions which were drawn follow : 



" Meat meal and tankage of similar chemical composition are almost equal, 

 pound for pound, as a supplement to a corn ration for growing pigs and fat- 

 tening hogs. . . . 



"At the prevailing market prices, a ration of corn alone (hi timothy pasture 

 produced the cheapest gains in weight of any of the rations fed to pigs on 

 timothy pasture, but the mixed rations produced the greatest total net profits. 



" Hogs fed on rations composed of corn and meat meal and corn and tankage 

 were fully as acceptable to the buyers, both from the standpoint of the quality 

 and condition of the flesh, as those fed on any of the other rations tested. . . . 



" Both meat meal and tankage are more valuable and profitable adjuncts to 

 the corn ration for dry-lot feeding than when pigs or hogs are being developed 

 and fattened on pasture, especially if the pasture be composed of leguminous 

 crops. . . . 



" For feeding pigs on pasture with feeds at the prevailing prices, a ration 

 of corn alone produced 100 lbs. of gain at a smaller cost than a ration of corn 

 and shorts. The corn and shorts ration, however, yielded somewhat the greater 

 total profit, due to the more rapid gains produced from the use of the same. 



"At the prevailing market price, barley proved to be an economical feed when 

 combined with corn and shorts for finishing hogs for market. 



" Pigs on timothy pasture ate more concentrated feed and gained more rapidly 

 than pigs eating the same kind of concentrated rations in dry lots. . . . 



" The gains due to the pasture itself were greatest when relatively smaller 

 amounts of protein were supplied in the concentrated part of the ration, and 

 amounted to 278 lbs. of pork per acre from timothy pasture when a concentrated 

 ration composed of 2 parts corn and 1 part shorts was fed after 1.85 tons of hay 

 had been harvested four weeks before the exi)eriment commenced. The ration 

 composed of corn and clover pasture produced 116 lbs. more pork per acre 

 than the ration composed of the same number of pounds of corn and timothy 

 pasture. . . . 



" In dry-lot feeding the most rapid gains and the most economical gains were 

 obtained in these experiments from those rations containing a much larger 

 proportion of protein to the carbohydrates and fats than is found in corn. 

 The price which feeders can afford to pay for supplementary feeds, rich in pro- 

 tein, to add to the corn ration for the purpose of balancing the same must be 

 regulated by the percentage of digestible protein contained in them and the 

 market price of corn. When corn is high in price, supplementary feeds, as 

 a rule, can be had at prices which will not i)roliibit their use; but when corn 

 is very low in price the feeder will very likely lose a poi'tion, if not all, of his 

 profits in pig feeding through the purchase of supplementary feeds." 



The feeding stuffs were analyzed. 



Experiments in swine feeding, L. E. Carter (Iowa Sla. Bid. 91, popular ed., 

 pp. 17). — A popular edition of the above. 



Pig feeding, J. J. Vernon and J. M. Scott (Xew Mexico Sta. Bui. 62, pp. 20, 

 pis. -'/). — A test was made of the value of different proportions of alfalfa hay 

 and corn and of alfalfa alone with 4 lots of 7 pigs each. In 73 days the pigs on 

 alfalfa and corn 1 : 3 made an average daily gain of 1.02 lbs. per head, on equal 

 parts of alfalfa and corn of 1.02 lbs., on alfalfa and corn 3 : 1 of 0.59 lb., and on 

 alfalfa alone 0.21 lb. The feed required per pound of gain ranged from 4.87 lbs. 

 on alfalfa and corn 1 : 3 to 15.67 lbs. on alfalfa alone. The gain was most 



