304 PRODUCTIVE FEEDING OF FARM ANIMALS 



country and abroad have shown that 1000 pounds of ordinary whey, 

 when fed with grain feed, such as corn meal and barley or shorts, 

 will save 100 pounds of grain in feeding fattening pigs, and that 

 two pounds of whey are worth about as much as one pound of 

 skim milk or buttermilk in feeding swine (p. 209). Canadian 

 experiments have shown no appreciable difference in the feeding 

 value of sweet and sour whey, but whey run through a separator or 

 from separator skim milk is worth only 75 to 80 per cent as m,uch as 

 common whey obtained in the manufacture of American cheddar 

 cheese. 12 



Garbage (Kitchen Refuse). — Fresh garbage makes a very sat- 

 isfactory feed for hogs (as well as for poultry), if of good quality 

 and fed under sanitary conditions. About 10 pounds a day is an 

 average allowance for fattening hogs when fed with grain, or 15 to 

 20 pounds if no other feed is given. Since garbage has a high 



Fig. SO. — Making pork on blue grass. The average returns for four years on this pasture 

 were S15.18 per acre. (Missouri Station.) 



water content (70 per cent or over), the best results are obtained 

 by giving supplementary grain, say 1 or 2 per cent of the weight of 

 the hogs per clay. A ton of garbage will produce about 100 pounds 

 of pork, on the average. Care must be taken to feed clean garbage 

 only, free from alkaline dish-water, pieces of broken glass or 

 dishes, etc. 12a 



Pastures. — As with other farm animals, swine will make the 

 cheapest gains when grazing or harvesting their own feed (Figs. 

 79 and 80) ; pasture only, without any supplementary grain feed, 

 will not, however, produce satisfactory gains, whether this con- 

 sists of mixed grasses, clover, or alfalfa. In trials at the Utah 

 station la pigs weighing 60 to 75 pounds when on pasture (alfalfa 



a Ontario Report, 1897 and 1909; Wisconsin Report 8, p. 47. 

 ">U. S. Dept. Agr., Office Secretarv, Cir. 80; Md. Bui. 227; Mich. 

 Quart. Bui., i. No. 3, p. 120; N. J. Cir. 40; Cornell Univ. Bui. 141. 

 "Bulletin 94. 



