226 



Journal of Agricultural Research 



Vol. XIX, No. s 



Table I. — Grain required to produce lOO pounds gain in pigs of test A 

 [Average initial weight, 47.42 pounds; average final weight, 267.33 pounds] 



Litter. 



Mean grain for 100 

 pounds gain 



Pig No. 



Daily gain. 



Pounds. 



2.063 

 1.492 

 1.668 

 I. 603 

 1.369 



1-635 



1.83.; 



Grain for 100 

 f)ounds gain. 



Pounds. 

 402 . 04 

 380.21 

 376.71 

 423. 04 

 404. 38 

 430. 76 

 397- 99 

 395- 60 

 355-31 



394. 80 



Variation from mean grain 

 for 100 pounds gain. 



TEST B, FEEDING PERIODS 84 AND 100 DAYS 



In 1 91 6, 26 pigs were fed individually. vSix of these which were fed 

 on pasture plots make up group i. Of the remaining 20, 7 which aver- 

 aged 193.71 pounds each at the close of the test constitute group 2. The 

 remaining 13 were younger pigs, except DJ 37 and P 72, which started 

 on feed at lighter weights and averaged only 137 pounds at the close. 

 These 13 made up group 3. The data of test B are given in Tables II 

 to IV. 



Table II. — Grain required to produce loo pounds gain in pasture-fed pigs of test B, 



group I 

 [Average initial weight, 34.3 po-ands; average final weight, 156.9 pounds] 



Litter. 



DJ 



DJ 



PY 



DJ 



PD 



PD 



Mean grain for 100 

 pounds gain 



Pig No. 



33 



35 



3 



46 



Daily gain. 



Pounds. 

 1-357 

 1-514 



1-315 

 1.294 

 I. 250 



I. 2.^,8 



Grain for 100 

 pounds gain. 



Pounds. 



37^-7° 

 346. 20 

 289. 20 

 365. 80 

 325.00 

 364. 10 



343-11 



Variation from mean grain 

 for 100 pounds gain. 



Pounds. 

 +28. 59 

 + 3-Q9 

 -53-91 

 +22. 69 

 -18. II 

 +20.99 



Per cent. 

 8-332 

 . 900 

 15.712 

 6.613 

 5.278 

 6. 117 



Table III. — Grain required to produce 100 pounds gain in dry-lot pigs of test B, group 2 

 [Average initial weight, 42.07 pounds; average final weight, 193.71 pounds] 



Litter. 



Pig No. 



Daily gain. 



Grain for 100 

 EKjunds gain. 



Variation from mean grain 

 for 100 pounds gain. 



DJ 



DJ 



DJ 



DJ 



DJ 



PY 



PY 



Mean grain for 100 

 pounds gain 



30 

 31 

 32 

 34 

 36 



5 

 6 



Pounds. 

 I. 417 

 I. 080 

 I. 900 

 1.287 

 1.940 



1-577 

 I. 724 



Pounds. 

 455 

 456 

 425 

 408 

 382 

 367 

 383 



Pounds. 

 +46. 85 



+47-95 

 + 16.65 



+ -45 

 — 26. 05 



-41- 15 

 -24-95 



408.35 



Per cent. 



11-473 



II. 742 



4.070 



. no 



6-379 



10. 077 



6. 109 



