UNITED STATES DEPARTMENT OF AGRICULTURE 
AW^-O. 
| BULLETIN No. 646 
Contribution from the States Relations Service 
A. C. TRUE, Director. 
Washington, D. C. 
PROFESSIONAL PAPER 
April 8, 1918 
LESSONS ON PORK PRODUCTION FOR ELEMEN- 
TARY RURAL SCHOOLS. 1 
By E. A. Miller, Specialist in Agricultural Education. 
CONTENTS. 
Page. 
Introduction 1 
Lesson 1 2 
II 6 
III 9 
IV 12 
V 13 
Lesson VI 15 
VII 17 
VIII 18 
IX 21 
Boys' pig clubs 25 
INTRODUCTION. 
Importance. — The growing of hogs is recognized as one of the most 
important phases of the live-stock industry. The value of hogs as 
meat-producing animals is attested by the facts that they are grown 
on 70 per cent of farms and that they constitute so large a part 
of the number of all farm animals. The United States Department 
of Agriculture Crop Report gives the following interesting figures 
with reference to the number of each kind of the leading farm animals 
in our country on January 1, 1917: Hogs, 67,453,000; sheep, 
48,483,000; milch cows, 22,768,000; other cattle, 40,819,000; horses 
and mules, 25,765,000. 
Educational value. — The great importance of the subject as indi- 
cated in the previous paragraph and the readiness with which it 
lends itself to the teaching of the principles of breeding, feeding, and 
management of farm animals give it unusual educational value. The 
application of these principles in connection with hogs may be studied 
and observed in the brief period of one year. Its educational value 
is recognized by school officials and extension workers and it is being 
made use of as a home project and as a phase of club work. 
It is with a view to introducing into the schools in a definite way 
the study of this important phase of animal husbandry that the fol= 
1 Prepared under the direction of C H. Lane, Chief Specialist in Agricultural Education. 
Note. — This bulletin is intended for the use of teachers of elementary agriculture. 
27820°— 18— Bull. 646 1 
