FEEDING SWINE 



419 



ratio steadily grows wider. Digestion experiments with 

 breeding swine during growth show also the same dechne 

 in the need for dry matter, protein, and total nutrients. In 

 other words, the body requirements of the pig in either 

 growth or fattening call for a gradual lessening of the protein 

 in the ration with an increase of carbohydrates. 



Figure 196. — Yorkshire brood sows on an English pasture, owned by Sanders 

 Spencer, Holycraft, St, Ives, England. Photograph by the author. 



The t3T)e of food best suited to the pig is of a concentrated 

 form. The pig has a single stomach, rather Hmited in capac- 

 ity, and, therefore, it can not consume roughage like the cow 

 or sheep with their compound stomachs and much greater 



