i8 4 



MILK AND ITS HYGIENIC RELATIONS 



Peer's quotient was worked out for the artificially fed pigs, and 

 the following values were obtained : 



As a whole, therefore, pigs A and B utilised their food rather 

 better than pigs C and D. But pig F utilised its food better than 

 pig E. 



After seven weeks the pigs were returned to their owner, who 

 reported later on that the artificially fed pigs were all inferior to 

 the breast-fed pigs, but that no difference could be detected between 

 the different artificially-fed pigs. 



Klein carried out feeding experiments upon fourteen little pigs 

 about seven weeks old. The pigs were divided into three groups 

 as follows : 



Group I. Four pigs fed upon raw skim milk, potatoes, and 



barley-bran. 

 Group II. Five pigs fed upon pasteurised skim milk, 



potatoes, and barley-bran. 

 Group III. Five pigs fed upon raw skimmed milk, potatoes, 



barley-bran, and dried yeast. 



The milk was gradually replaced by the yeast in Group III, 

 but the animals refused it after a while, and did not do so well as 

 in Group I. 



No difference could be detected between Groups I and II except 

 that there was a slight balance in favour of the group which had 

 received the pasteurised milk. 



The experiment lasted twelve weeks and the weights at the 

 beginning and end of the experiment are given below : 



Kg. total weight, 

 > > 

 Kg. total gain, 

 Gain in kg. per 

 day per pig, 



showing a slight advantage for the pasteurised milk. 



