PREFACE. 



The discussions here given are the results of a number 

 of years of specialized study in swine husbandry in con- 

 nection with a thorough study of the principles of animal 

 nutrition. Practical farm experience was supplemented 

 by a detailed study of experimental data and a great 

 deal of original investigation in the subject. An at- 

 tempt is made to present the subject of swine breeding, 

 feeding and management in such a form that it can 

 be understood by the general farmer and swine breeder; 

 the man who is producing hogs for the pork product 

 as well as the man who is producing pure-bred swine 

 for breeding purposes. The student also is kept in 

 mind, and it is hoped that the elementary form in which 

 this subject is presented will appeal to the needs of the 

 class room. 



It is attempted to present the various subjects in 

 logical order, or in the order in which they would natu- 

 rally present themselves. The first question that arises 

 is the selection of a breed. In order to do this intel- 

 ligently the characteristics of the breeds must be known. 

 Then something must be learned about judging in order 

 to be able to establish a herd. Following this comes the 

 origin of the breeds, giving the breeder an idea of the 

 characteristics that will probably be transmitted by in- 

 dividuals of a breed, which will enable the breeder to 

 develop his herd properly and then breed for improve- 

 ment. 



Thus Part I deals with breeds and breeding, Part II 

 with feeding, and Part III with the general care and 

 management of swine. 



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