78 EXPEEIMENT STATION RECORD. 



pigs weighing 111.5 lbs. each when pastured on peanuts made an average daily 

 gain of 1.37 lbs. Two pigs weighing 116.5 lbs. were pastured for 90 days on peanuts 

 and chufas in the proportion of three rows of the former to one of the latter and 

 made an average daily gain of 1.47 lbs. The melting point of the back fat and kid- 

 ney fat of the pigs fed no corn was 22.9° C. and 32.2° C, respectively. The average 

 melting point of the back fat and kidney fat of the pigs fed corn after the grazing 

 period was 26.3° C. and 34.1° C, respectively. There was thus on an average 

 3.4° C. in favor of the pigs given corn after grazing. " What effect longer feeding 

 than 8 weeks would have on the hardening of the fat was not ascertained, because to 

 feed longer than 4 weeks is more expensive than the objects of the experiments 

 would permit, which was to produce pork on a mininuun quantity of corn and of a 

 quality equal to full corn-fattened pork." 



The animals used in the above tests were the average pigs of the region, and were 

 scrubs with the exception of two or three which showed improved blood. The 

 latter produced a somewhat better quality of pork and probably harder fat than 

 the former. In a subsequent test the effect of feeding corn while grazing on peanuts 

 and chufas, and the value of thcjroughbred as compared with scrub stock, was 

 studied. As the pigs when grazing had considerable exercise, the test also bears 

 upon the question of the effect of exercise combined with corn feeding. Four pigs, 

 weighing on an average 99.5 lbs., when pastured on jjeanuts and chufas in alternate 

 rows and fed corn in addition for 75 days made an average daily gain of 1.7 lbs. per 

 pig. They grazed over 0.78 acre and consumed 14 bu. of corn. Four pigs, averag- 

 ing 95 lbs. each, when grazed on peanuts and chufas in alternate rows for 50 days 

 gained 89.5 lbs. each. They were then fed corn for 25 days. During the whole test 

 the average daily gain was 1.6 lbs. per pig. Fourteen bushels of corn were consumed 

 and 0.71 ac^e were grazed over. One lot of four pigs weighing 96.3 lbs. each was 

 pastured on peanuts for 75 days and fed corn in addition. The average daily gain 

 was 1.78 lbs. Fourteen bushels of corn were consumed in addition to the feed 

 received on 0.78 acre of a field of peanuts. When grazed on peanuts for 50 days, 4 

 pigs averaging 95 lbs. each, gained 95.5 lbs. They were then tVd corn for 25 days. 

 During the whole test the average daily gain per pig was 1.7 lbs., 14 bu. of corn and 

 the peanuts on 0.71 acre being consumed. In comparison with the above lots, which 

 were made up of oi linary scrub stock, 6 thoroughbred Berkshires averaging 96 lbs. 

 each were grazed on peanuts for 75 days and fed corn in addition. The average 

 daily gain was 1.6 lbs. per pig. This lot grazed over 1.19 acres and consumed 20 

 bu. of corn. The average melting point of the back fat of the pigs fed corn while 

 grazing was 33.1° C. and of the kidney fat 38.4° C. Similar values for pigs fed corn 

 after grazing were 32.5° C. and 37.8° C. According to the author the thoroughbred 

 pigs or good grades, on peanuts and chufas, combined or alone and fed at the same 

 time a quantity of corn equal to the amount required in four weeks, if fed exclusively, 

 produced pork and lard that in appearance and cooking quality could not be dis- 

 tinguished from that produced by pork fattened on corn exclusively. Scrub pigs 

 similarly grazed and fed produced an inferior flesh and fat, which was soft and oily. 



"[A quantity of corn equal] to full feed for a month raised the melting point of 

 fat a few degrees and hardened the flesh, but ... a smaller quantity was of no 

 material Ijenefit; ... a larger quantity for feeding longer than one month was 

 too expensive and did not produce good effects to a proportionate extent as the first 

 month of corn fee. ling." 



Data concerning the melting point of the fat of pigs used in an earlier test (E. S. R., 

 10, p. 1086) are also reported. 



Feeding- pigs for the production of lean and of fat meat, W. L. Carlyle and 

 A. G. Hopkins ( Wisconsin Sta. Rpt. 1900, pp. 12-24, pis. 6). — It has been claimed by 

 some that "the feeding of corn to hogs produces a carcass containing a much larger 

 proportion of soft blubbery fat than is the case when feeds such as peas, barley, oats, 



