414 Western Live-stock Management 
and may eat only enough for maintenance, thus making 
no gains at all. 
It has been noted that sufficient protein in a feed in- 
creases the digestibility of the other nutrients. It has 
also been found that the addition of protein to a ration 
deficient in that nutrient causes an increased consumption 
of feed. 
In conclusion the following points may be noted: that 
the purposes in fattening swine are to increase the edible 
meat and dressing percentage, to decrease the proportion 
of water, and to improve the texture of the meat; that 
approximately 1 per cent of the live weight in digestible 
dry matter is required for the maintenance of the pig; 
that rather more protein than exists in ordinary farm grains 
is necessary for economical pork production; that the 
price paid for protein supplement should be in general 
proportionate to the protein content, but the carbohydrate 
equivalent should be given a value of about two-thirds as 
much for each pound as the protein. The supplemental 
feeds should be guaranteed as to the protein they contain. 
