Value of Exercise 11 
EXERCISE 
Exercise is important in maintaining the general 
health and vigor of animals. The practice of keep- 
ing milch cows closely confined the year round, 
while conducive to an_ inereased milk - flow, also 
Fig. 6. A good Yorkshire pig 
tends to weaken the animals’ constitutions, and pre- 
dispose them to disease, especially to tuberculosis. 
Exercise is necessary to keep the muscles, digestive 
system, skin and other organs of the body in a 
healthy condition. But animals that are being fattened 
for the market should have very little exercise, as ex- 
ertion consumes some of the food that should go 
