i9io.] Suggestions for Pig-Feeders. 



825 



used in the proportion of 1 lb. of meal to 1-3 lb. of skim milk, 

 327 lb. of skim milk then replacing 100 of maize meal. 

 The average of all returns showed that 475 lb. of skim milk 

 equalled 100 lb. of maize meal. In Denmark Fjord, using 

 larger proportions of skim milk with grain, showed that the 

 comparative value of grain and skim milk is expressed by the 

 ratio 6 to 1, or that 600 lb. of skim milk were equal to 

 100 lb. of grain. The Wisconsin trials brought out 

 the fact that when maize was valued at 18s. 8d. per quarter, 

 skim milk was worth (when fed 1-3 lb. per 1 lb. of 

 maize meal) about ijd. per gallon for pig feeding, or when 

 maize was valued at 28s. per quarter the milk would be 

 worth 2\&. per gallon. The average value when fed with 

 maize meal in different proportions, and maize at 28s, per 

 quarter, was just over \\&. per gallon. In these experiments 

 machine-skimmed milk is referred to; hand-skimmed milk 

 contains more fat, and is hence more valuable for pig feeding. 



It is remarked by Coburn* that if a bushel of maize 

 alone will make 10 lb. of pork, and 100 lb. of milk alone 

 will make 5 lb. of pork, the two combined will on the average 

 produce not 15 lb. but 18 lb. of pork, a gain of 3 lb., or 20 

 per cent., due to the combination. Experiments at the Utah 

 Experiment Station showed the great advantage of the com- 

 bined ration over grain alone or milk alone. The main 

 results when the grain variously consisted of maize, wheat, 

 and barley, and their products, may be given thus : — 







Food eaten per 100 lb. gain. 







Average 







Gain per 





daily gain. 







100 lb. milk. 







Grain. 



Milk. 







lb. 



lb. 



lb. 



lb. 



Milk and grain 



1-27 



292 



768 



23 -2 ; 



Grain ... 



0-91 



47o 







Milk 



o-68 





3.312 



14-2 



This shows that when 100 lb. of milk were fed with grain 

 they produced 23*2 lb. of gain, but when fed alone the gain 

 was only 14*2 lb., a very considerable and important differ- 

 ence, while the daily gains with milk and grain were much 

 larger, and fattening therefore so much the quicker. 



* Op. cit., p. 428. 



3 M 



