158 SOUTHERN PORK PRODUCTION 



most common materials used in drift fences, but wire can 

 be used. In permanent fences wire is probably the most 

 commonly used material. In portable fences the fence is 

 supported by braces at the end of each panel, and with 

 some a stake is driven down, to which the brace is lightly 

 tacked. Drift fences are about as cheaply constructed as 

 permanent fences, because the use of posts is done away 

 with, and they have additional advantages in that they 

 can be continually kept in use, thus requiring a small 

 total length of fence, and they are readily taken out of 

 the way to prepare land and cultivate the grazing crops. 



Water supply. There are but few farms that have a 

 stream that is adapted to supply water to all fields. 

 Where it is possible and feasible an artificial water 

 supply system is best suited, for it is under control and 

 clean water can always be provided. A small tank with a 

 hydraulic ram is an ideal method of water supply where 

 the ram can be used. If no stream is available for a ram 

 a pump and well can be used to supply the water. In the 

 arrangement of the lots the water supply should be taken 

 into consideration. Not only is water needed for drink- 

 ing purposes, but some is needed in the wallows, for 

 mixing feeds and for cleaning up. A supply of ten 

 gallons per day per hog should be available regardless of 

 the source, and it should be placed so as to be of greatest 

 value to the hog and still be economically supplied. 



Bedding. In the sleeping quarters, whether they be 

 for brood sows or for fattening swine, attention should 

 be given to the bedding. It should be changed often for 

 sanitary reasons. It should not be so damp as to be 

 soggy and unhealthy, and neither should it be so dry as 



