XVI CONTENTS 



growth in fattening sheep, 468; Food needs of fatten- ""aoes 

 ing sheep, 469; Quantity of. nutrients for fattening 

 sheep, 470; The selection of a ration for sheep, 471. 

 Pork Production: Changes in pork production, 472; 

 Character of the growth in pork production, 473; Food 

 requirements for pork production, 474; Pigs unwisely 

 fed, 475; Point of view in feeding pigs, 476; Influence of 

 ration on the development of swine, 477; Dairy wastes 

 as food for pigs, 478; Protein foods other than milk 

 products for swine, 479; Forage crops for swine, 480. 



CHAPTER XXII 



Feeding Wghking Animals . . . 387-398 



The horse a machine, 481; The work performed by a 

 horse, 482; Influence of conditions on the food expendi- 

 ture for a unit of work, 483; The food requirements of a 

 working horse, 484; Estimate of work ration for the 

 horse based on energy relations, 485; Source of the ration 

 for working horses, 486; Nutritive ratio for working 

 horses, 487; Oats for working horses, 488; Suggested 

 rations for working horses, 489. 



CHAPTER XXIII 

 The Feeding of Poultry. By WiUiam P. Wheeler . 399-417 



Food needs of birds intensive, 490; Kinds of foods for 

 poultry, 491; Incidental effects of the food with laying ' 

 hens, 492; Digestive apparatus of birds, 493; Constitu- 

 ents of the body of the hen, 494; Composition of eggs, 

 495; Necessity for considering the water-supply, 496; 

 Efficiency of protein from animal sources for fowl, 497; 

 Ash constituents important for egg production, 498; 

 Common salt a necessity for fowls, 499; Supply of grit 

 for fowls, 500; Feeding standards for fowls, 501; Main- 

 tenance rations for fowls, 502; Rations for laying hens, 

 503; Rations for young birds, 504; Adaptability of vari- 

 ous foods for fowls, 505; Knowledge of the nutrition of 

 fowls limited, 506. 



