ANIMAL PRODUCTION. 997 



addition for 5 weeks when the sow was removed and the feeding eontinued witli the 

 l)io;s 8 weeks longer. The latter made an average gain of 22.1 ll)s. per week l)efore 

 weaning and 18.5 lbs. after, the area grazed over l)y the sow and pigs being about 

 1,710 sq. ft. per week before and 1,28<) sq. ft. after weaning. The corn meal eaten 

 per pound of gain was equivalent to 4.SS 11 )s. before and 4.4 lbs. after weaning. The 

 sow lost nearly 20 lbs. in weight. Tlie unsatisfactory rate of growth is attri))uted in 

 part to insufficient shade. 



Other forage crops tested included Spanish peanuts, chufas, cowpeas, sweet pota- 

 toes, sorghum, and spring-sown and fall-sown Dwarf Essex rai)e. When hurdled on 

 spring-sown Dwarf Essex rape and fed corn in addition the 7 pigs mentioned above 

 gained 103 lbs. in 28 days begimiing May 27, re(iuiring 3.1 lbs. of corn meal and the 

 rape from 40.5 sq. ft. per pound of gain. On fall-sown rape 4 i)igs gained 203 lbs. in 

 102 (lays beginning January 6, recjuiring 2.5 Uy 2.0 lbs. of corn per pound of gain in 

 addition to the green feed. During a part of the time they Avere hurdled on second- 

 growth rape. Assuming that 5 lbs. of corn meal alon(! is required per jjound of gain 

 the author calculates that on an average 1 acre of rape will produce 452 lbs. of pork, 

 worth 122.50. 



Seven young pigs used in one of the above tests were grazed on sorghum from June 

 24 to September 2 and fed in addition 1.5 lbs. of ground cowpeas and corn 1 :1 per 

 head daily, and gained 224.4 lbs., equivalent to ()35 lbs. per acre of sorghum. The 

 author believes, where labor is cheap or where a corn harvester can be used, that it 

 will be more profitable and more economi(;aI to feed sorghum to the pigs than to 

 graze them on it. 



Sorghum pasturage in the dough and rii^ening stages fed with grain or with Si)an- 

 ish peanuts was compared with grain alone and with ripe cowpea pasturage. The 

 grain mixture consisted of corn meal and cowpea meal 2:1. The test covered 5 

 weeks, sorghum being found of little value, effecting a saving of only 12 per cent of 

 the grain required for a pound of gain. The gains on sorghum and peanuts were 

 unsatisfactory, and the waste was very large with the cowpeas. The lot on grain 

 alone made a very satisfactory growth, producing a pound of gain on 3.74 lbs. of 

 the grain mixture. On an average the author calculates that the sorghum produced 

 174 lbs. of pork per acre, worth $8.70. 



Seven tests with Spanish peanuts are rejiorted, in 6 of which the pigs were penned 

 or hurdled on the peanuts and harvested the crop. In the other pulled peanuts 

 were fed. In 4 tests the forage crop was supplemented by corn meal, and in one by 

 corn meal and skim milk. On corn meal and peanuts the calculated gains due to 

 the peanuts alone ranged from 225 lbs. to 247 lbs. per acre. On skim milk and corn 

 meal the gain attributed to peanuts alone made by a sow and 9 pigs was 432 lbs. 

 per acre. On peanuts alone very small pigs (averaging 28.1 lbs. in weight) made 

 gains equivalent to 503 lbs. per acre. 



The gains made in IS days by lots of 3 pigs each on peanuts and chufas, each fed 

 with a half grain ration, were practically equal (79 and 81 lbs., respectively) and 

 were greater than on a full grain ration (70.5 lbs.). A similar lot grazed on Spanish 

 peanuts without grain gained only 22 lbs. From all the tests of peanuts with grain 

 the author concludes that this crop will produce 333 lbs. of pork i^er acre, valued at 

 $16.65. In 2 tests peanuts alone produced per acre 281 lbs. of pork, worth $14.05. 



In another test young pigs hurdled on chufas and fed a little corn and cowpea 

 meal gained at the rate of 660 lbs. per acre of chufas in addition to 1,429 lbs. of 

 grain. Averaging the results of the 2 tests with chufas the author calculates that an 

 acre would produce 307 His. of pork worth $15.35. 



For 35 days, beginning in November, 2 pigs were pastured on sweet potatoi's and 

 also fed per head daily a half ration (3 lbs. ) of ground corn and cowpeas 2:1. The 

 total gains amounted to 67 lbs. The sweet potatoes were not eaten with relish and 

 some were rooted up and wasted. The author believes feeding less grain would have 



