768 



EXPERIMENT STATION RECORD. 



[Vol. 36 



dredweight for the estimated yield of corn, as compared with $1.55 per hundred- 

 weight where the hogs had access to alfalfa pasture, and $1.50 per hundred- 

 weight where tankage was used. The use of either alfalfa or tankage resulted 

 in more rapid and cheaper gains than were secured where no supplementary 

 feed was used." 



Fattening swine on rice by-products, H. E. Dvorachek et ax. {Arkansas 

 Sta. Bill. 128 (1916), pp. 24. fig. 1). — Results are reported of five experiments 

 carried on at the station to determine the relative feeding values of corn, rice 

 polish, and rice bran for fattening swine when fed alone, in various combina- 

 tions, and when supplemented with various protein supplements. The pigs 

 were fed in pens in the station hog house and had access to dry lots, mineral 

 matter, and water. In the first three experiments the feeds were mixed with 

 water at the time of feeding and fed as a thick slop. In the fourth and fifth 

 experiments the full day's feed was mixed with water in barrels in the evening, 

 one-half of this mixture being fed the next morning and the other half the next 

 evening. The cost of gains was based upon the following prices per hundred- 

 weight for feeds: Com chop, $1.50; rice polish, $1.40; rice bran, $1.10; wheat 

 shorts, $1.40 ; tankage, $2.50 ; skim milk, 25 cts. ; and buttermilk, 25 cts. 



The following table gives the rations fed and some of the results obtained in 

 the five experiments: 



Pig feeding trials. 



Ex- 

 peri- 

 ment 

 No. 



Ill 



IV 



liOt 



No. 



Rations fed; weight propor- 

 tions. 



Average 

 daily gain 

 per head. 



Com chop, tankage (9:1)... 



Rice polish, tankage (9:1).. 



Rice bran tankage (9:1)... 



Rice polish, rice bran, tank- 

 age (9 : 9 : 2) 



Com chop, rice polish, rice 

 bran, tankage (3:3:8:1). 



Rice polish, rice bran, tank- 

 age (6 : 3 :1) 



Com chop, tankage (9:1)... 



Rice polish, tankage (9 : 1)... 



Rice Ibran tankage (9:1) 



Rice polish, rice bran, tank- 

 age (9 :9 :2) 



Com chop, rice polish, rice 

 bran, tankage (3:3:3:1). 



Rice polish, rico bran, tank- 

 age (3 : 6 : 1) 



R ice bran 



Rice bran, wheat shorts(l : 1) 



Rice bran, wheat shorts, 

 tankage (6:3:1) 



Rice bran, tankage (9:1) 



Com chop 



Rice bran 



Rice polish 



Com chop, rice bran, rice 

 polish (1:1 :1) 



Rice bran, rice polish (1:1).. 



Rice bran, rice polish (2 : 1).. 



R ice bran, rice i>oUsh (1:2).. 



Rice bran, rice polish (1 : 3) . 



Com chop, tankage (9 : 1 to 

 12:1) 



Rice bran, tankage (9 : 1 to 



12: 1} 



Rice polish, tankage (P : 1 to 

 12:1) 



Com chop, buttermilk . . . 



Rice bran buttermilk 



Rice polish, buttermilk. . 



Com chop , sk im milk 



Rice bran, skim milk 



Rice polish, skim milk . . . 



Pounds. 

 1.17 

 1.23 

 1.27 



I.IR 



1.39 



1.26 

 1.48 

 1.26 



1.2S 



1.16 



1.36 



1.14 

 1.10 

 1.03 



1.33 

 1.13 

 1.30 

 1.46 

 1.63 



1.72 

 1.40 

 1.66 

 1.49 

 1.72 



1.21 



1.07 



1.41 

 1. IS 

 1.20 

 1.55 

 1. 2S 

 1.26 

 1.64 



Feed 



consumod 



pcrpound 



of gain. 



Pound:i. 

 4.358 

 3.754 

 4.488 



4.920 



4.311 



4.018 

 3.782 

 3.636 

 4.478 



3.991 



4.240 



4.286 

 5.272 

 5.794 



4.700 

 5.308 

 4.754 

 4.227 

 3.580 



3.627 

 4.044 

 3.702 

 3.903 

 3.580 



4.136 



4.612 



3.420 



7.003 

 6.867 

 5.299 

 8.675 

 8.807 

 6.749 



Cost per 



pound of 



gain. 



Cents. 

 6.97 

 5.67 

 5.56 



6.77 



6.25 



5.72 

 5.96 

 5.49 

 5.55 



5.48 



5.70 

 5.80 

 7.25 



7.14 

 4.65 

 5.01 



4.83 

 5.05 

 4.44 

 5.07 

 4.74 



6.57 



5.66 



5.12 

 6.59 

 4.93 

 4. G9 

 6.64 

 5.28 

 4.90 



Length 



of e.x- 



periment. 



Daps. 



Average 

 weight 

 per pig at 

 begin- 

 ning. 



Pounds. 



Number 

 of pigs 

 per lot. 



