268 FEEDING AND MANAGEMENT 
On the front page of the record book, a sketch should be made 
similar to the ones shown here, indicating the location and value 
of different cuts. This will make a convenient reference and 
will help to avoid mistakes. 
In case a breeder prefers to insert ear labels at the time 
of weaning, the system of marking described above will be 
unnecessary, and in the column headed “ Ear mark” he would 
enter the numbers of all the labels used for the litter. 
Instead of ear labels, tattoo markers may be used for white 
pigs. 
Gestation Table——On page 269 is a gestation table for sows, 
which will be found convenient. for reference. In the table the 
period of gestation is placed at 112 days, but a great many sows 
will go a few days past the time stated. Everything should be 
in readiness, however, before the 112 days are up. 
Business Methods.—The importance of supplying registra- 
tion certificates promptly to customers, and of keeping an 
accurate record of breeding operations and of animals sold, 
has already been mentioned; but, in addition to these records, 
the breeder should have some method of book-keeping which 
will show the financial standing of the business. The system 
need not be complicated, but the books should at least show all 
sales, and all purchases, whether of feed or stock, and should 
contain an inveutory showing the value of the stuck on land at 
the beginning of cach year. Tt is worth while, also, to nse 
ueatly and attractively primted letter-heads and envelopes in 
answering correspondenee. They help to secure business. Above 
all, the breeder must remernber that a satisfied eustomer is an 
effective advertisement, and that it is poor business to take 
advantage of a customer in any way. 
