282 ELEMENTARY TREATISE ON STOCK FEEDS 'AND I^EEDING 



supposed to run on pasture with the pigs until the pigs are about 

 ten weeks old. The sows are then removed to their own special 

 pasture, where they are bred, and remain till the next litter of 

 pigs is farrowed. Good winter wheat pasture will carry about 

 6 pigs to the acre. Good clover pasture will carry 12 pigs to the 

 acre till July, after which it will carry half as many. By sow- 

 ing wheat and clover in corn in August we get our winter 

 and summer pasture on the same land, so that i acre of pasture 

 sufiSces for 6 fall and 6 spring pigs. 



"Estimating corn at 60 bushels per acre, 3 horses will re- 

 quire 4j'2 acres of corn. If hay yields i^ tons per acre, the 

 horses will require 5J4 acres of hay. If a sow produces on the 

 average 14 pigs a year in two litters, then for each sow kept the 

 requirements are as follows: 



Amount and Acreage of Corn and Acreage of Pa.sture Needed 

 TO Support One Sow with Pigs for a Year. 



Acres 

 Feed for i Sow 



Corn, 25 bushels 0.42 



Special pasture 0.20 



Feed for 14 Pigs 



Corn, 140 bushels 2.33 



Pasture 1.17 



Total 4. 12 



"Deducting 10 acres required to raise feed for the horses, we 

 have on a 60-acre farm 50 acres to be devoted to hog raising. 

 This divided by 4.12 gives 12.11 ; i. e., we can keep 12 sows and 

 raise 168 pigs. 



The approximate acreage of each crop would be as follows: 



ToTAi< Acreage of Each Crop Needed on a Hog Farm in a Region 

 A Little South of Middi,e Latitude 



Crop 



For 3 

 horses 



For 12 

 sows 



For 168 

 pigs 



Total 



Corn . . . 

 Hay . . . 

 Pasture 



4-5 

 5-5 



acres 

 4-8s 

 2.40 



acres 

 28.24 



14.13 



37-50 



5-5° 



16.53 



