Sanders Spencer, The Pig: Breeding, Rearing, and Marketing
“ There are few points in connection with the breeding and feeding of pigs on which there is a greater diversity of opinion and practice than on the question of the weaning of the young pigs.For instance, take the age at which it is most satisfactory to take the pigs off the sow. This practice varies greatly in different districts, and even in the same district where one would naturally suppose that the determining influences would be similar weaning at five or six weeks old. ”
