ANIMAL PRODUCTION. f57l 



The alfalfa hay was fed in racks, and just as much as they would clean up 

 without waste. The anwunt of skim milk and grain fed was regulated by the 

 size of the pigs, and increased as the pigs gained. It was considered that 6 lbs. 

 of skim milk was equal to 1 lb. of grain as a feed, and that the most economical 

 proportion to feed it in conjunction v, ith grain was 4: 1. 



The respective lots made average daily gains per head of 0.33, 0.43, 0.54, and 

 0.54 lb., consuming per pound of gain 3.92, 3.99, 3.52, and 3.32 lbs. of grain or 

 equivalent, and co.sting 9.35, 8, 6.49, and 6.83 cts per pound of gain. The results 

 of the experiment indicate that when skim milk is fed with alfalfa hay it 

 should be supplemented with one of the concentrated carbohydrate grains, .such 

 as corn, barley, or milo maize, rather than with either a concentrated nitroge- 

 nous or a bulky grain. 



It was noted that the Duroc- Jersey pigs gaineii more than the Tamworths 

 on all foeds except shelled corn and alfalfa. Considering the two breeds regard- 

 less of the rations fed, the Durocs made an average gain of 66 lbs. per head and 

 the Tamworths 60 lbs. 



Four lots of eight S-month-old Duroc-Jersey and Tamworth pigs each were 

 fed 90 days as follows: Lot ], soaked barley and alfalfa hay; lot 2, soaked 

 wheat and alfalfa hay; lot 3, ground wheat, wet with water, and alfalfa hay; 

 and lot 4, ground wheat and skim milk 1 : 4, and alfalfa hay. The respective 

 lots made average daily gains per head of 0.718, 0.8, 0.958, and 0.899 lb., con- 

 suming 4.48, 4.02, 3.35, and 2.61 lbs. of grain and 0.99, 0.66, 0.98, and 1.17 lbs. 

 of alfalfa hay per pound of gain, costing 6.82, 4.99, 4.63, and 5.29 cts. per pound 

 of gain, and returning a profit of $0,856, $2,215, $2,865, and $2,205 per head. 

 The Durocs in every lot but one (lot 4) made the larger gains, but the Tam- 

 worths seemed better able to utilize the bulky skim milk plus wheat ration. 

 Both breeds gained more on wet ground wheat than on soaked, and the Tam- 

 worths seemed to relish it more than did the Durocs. 



Four lots of eight pigs each were fed 36 days as follows : Lot 1, ground barley 

 and silage; lot 2, ground barley and shorts, 2: 1, and silage; lot 3, ground barley 

 and alfalfa hay ; lot 4, ground barley and shorts, 2 : 1, and alfalfa hay. The 

 respective lots made average daily gains per head of 0.48, 0.5, 0.68, and 0.7 lb., 

 lots 1 and 2 consuming 10.33 and 9.8 lbs. of silage and 6.7 and 6.04 lbs. of grain 

 per pound of gain and lots 3 and 4 consuming 4.72 and 4.27 lbs. of alfalfa hay 

 and 4.7 and 4.45 lbs. of grain per pound of gain, and costing, respectively, 12.94, 

 11.74, 10.36, and 9.7 cts. per pound of gain. 



As between silage and alfalfa the average total gain per head was 17.6 lbs. 

 and 24.8 lbs., the average cost per pound of gain 12.34 and 10.02 cts., and the 

 average profit by carload $9.55 and $38.37. As between the barley and the 

 barley and shorts rations the average total gain per head was 20.7 and 21.6 lbs., 

 the average cost per pound of gain 11.65 and 10.72 cts., and the average profit 

 per carload $15.43 and $32.67. 



It is estimated that 585 lbs. of alfalfa hay replaced 500 lbs. of concentrate of 

 the kinds used in these experiments, and that the hay has a value of $25.64 

 per ton. 



Ground corn gave better results than skim milk supplemented with shorts 

 and bran or skim milk supplemented with ground corn, though when a portion 

 of the ground corn was replaced by skim milk the gains were as high but made 

 at a greater cost. 



Taking the average results of three experiments in which Tamworths were 



used, including 26 hogs, and comparing with the results of two experiments in 



which Duroc-Jerseys were used, including 27 hogs, the average daily gain of 



the Tamworths per head was 31 per cent greater than that of the Duroc-Jerseys, 



9635°— No. 7—15 6 



