322 



Pork Production 



small amounts and as adjuncts to a meal or grain ration. 

 As a class, also, they are carbonaceous in nature. Most 

 of those generally used for pig-feeding contain smaller 

 proportions of protein than corn. The succulent quality 

 of roots insures a laxative effect for the rations in which 

 they are fed. This is the chief reason for their beneficial 

 results when fed to breeding stock during seasons when 

 pasture is not available. 



TABLE CLV. VALUE OF ROOTS FOR FATTENING PIGS l 

 (Av. 8 Exps.) 



Experimental studies to determine the value of the 

 different roots for fattening pigs are more or less frag- 

 mentary in extent, many of them being inconclusive so far 

 as showing any considerable merit for these feeds. As a 

 general proposition, it may be said that the addition of 

 roots to a meal or grain ration does not hasten the rate of 

 gain, but does result in a saving in the amount of meal 

 or grain required to produce a unit of gain. This is 

 shown by a compilation of experimental data by Henry 

 and Morrison 2 shown in Table CLV. These figures 



1 Clark, Utah Exp. Sta. BuU. 101; Lazenby, Ohio Rpt., 

 1884 ; Plumb and Van Norman, Ind. Exp. Sta. Bulls. 79 and 

 82 ; Robertson, Ottawa Exp. Farms, Rpt. 1891 ; Sanborn, Utah 

 Rpt., 1891 ; Shaw, Mont. Exp. Sta. BuU. 27. 



2 " Feeds and Feeding," 1915. 



