THE FEEDING VALUE OP BOOTS 5 



Before coming to the trials dealing with the feeding value 

 of roots, which was tested by feeding both pigs and cows, it 

 will be necessary to mention briefly the results of the first large 

 group of trials carried out in 1884-87 on nine farms, with 487 

 pigs in 89 groups, and forming 27 separate series of experiments. 

 The results showed that 1 Ib. of rye and 1 Ib. of barley had the 

 same feeding value ; that 1 Ib. of corn, 6 Ibs. of skim-milk, and 

 12 Ibs. of whey had the same feeding value for pigs, that is to 

 say, that within the limits of a reasonable composition of pigs' 

 food, one pound of corn in the food could be replaced by 6 Ibs. 

 of milk or by 12 Ibs. of whey without affecting the growth of 

 the pigs. 1 



In 1888-89 another series of feeding experiments was 

 carried out with 444 pigs in 82 groups on 13 different farms* 

 The above-mentioned result, namely, that 1 Ib. of corn, 6 Ibs. 

 of skim- milk and 12 Ibs. of whey can replace each other in the 

 feeding of pigs, was fully confirmed, and the feeding value of 

 roots was inquired into at the same time. 2 The roots were fed 

 raw but chopped in a machine. The feeding value of roots was 

 compared with that of corn, and of milk, and of whey. Six 

 groups of pigs were required on each farm to carry out the full 

 scheme. Two groups were fed in the usual way on the farm, 

 being given corn, and one group some milk, the other group 

 double as much whey. The food on one farm, for instance, 

 consisted of 10 Ibs. 3 of barley and 50 Ibs. of milk to each pig in 

 one group ; 10 Ibs. of barley and 100 Ibs. of whey to each pig 

 in the other group, and 10 Ibs. of butter milk to pigs of both 

 groups, this being the food for one pig in ten days. As the 

 animals grew the food was increased, two months later, for 

 instance, being 17 Ibs. of barley and 92 Ibs. of milk or 184 Ibs. 

 of whey, and 10 Ibs. of butter-milk, for each pig in ten days ; 

 two months later again 22 Ibs. of barley, 118 Ibs. of milk or 

 236 Ibs. of whey, and 10 Ibs. of butter-milk. On another farm 

 a beginning was made with 13 Ibs. of barley, 68 Ibs. of milk or 

 136 Ibs. of whey, and 10 Ibs. of butter- milk for each pig, and so 



1 N. J. Fjord, " 25 Beretning om Fors0g," K0benhavn, 1887. 



2 N. J. Fjord, " 29 Beretning om Fors0g," K0benhavn, 1890. 



3 Although for practical reasons the weights are given in English pounds 

 (Ibs.), it should be remembered that the original really refers to Danish pounds, 

 being 10 per cent, larger than English Ibs. 



