AGEICULTURE FOR SOUTHERN SCHOOLS. 41 



Lesson h.— Improvement of CoTnTnon 8tock. 



1. Weeding out unprofitable individuals. 



2. Use of pure-bred sires. 



3. Cooperative breeding. 



4. Cow-testing associations. 



FEEDS AND FEEDING. 



(Nine lessons.) 

 References. — 



Farmers' Bulletin 22, The Feeding of Farm Animals. 

 The Use of Energy Values in the Computation of Rations for Farm Ani- 

 mals, U. S. Dept. of Agr., Bur. An. Indus. Bui. 459. 

 Illustrative material : Charts showing feeding standards, etc. ; samples of 

 feeds. 



Lesson 1. — Com^position of Plants and Animals. 



1. Relation of animals to plants. 



2. Elements and compounds. 



3. Composition of plants. 



4. Composition of animals. 



Lesson 2. — Nutrients. 



1. Carbohydrates. 



(a) Nature. 

 (&) Sources. 



2. Proteids. 



(ft) Nature. 

 (6) Sources. 



3. Fats. 



(a) Nature. 

 ( & ) Sources. 



4. Water and mineral matter. 



Lesson 3. — {a) Digestion. 



1. Nature of the process. 



2. Organs. 



8. Importance of normal function. 



(6) Assimilation, (c) Excretion. 



(Same as for digestion.) 

 Lesson 4. — Function of Nutrients. 



1. Carbohydrates. 



2. Proteids. 



3. Fats. 



4. Water and minerals. 



Lesson 5. — Feeding Stand;ards. 



1. The nutritive ratio. 



2. Comparison of standards. 



3. Exercises in determining ratio. 



Lesson 6. — Roughages. 



1. Place in ration. 



2. Classes and composition. 



3. Importance of succulence. 



