o't IMPROVEMENT AND FEEDING 



i, grains, middlings, chop of all sorts, are examples of 

 concentrates. Good feeding requires a mixture of both 

 roughage and concentrates. Roughage is used mostly for 

 filling up the intestines and for carrying along the more 

 nutritious feeds. 



PRACTICAL QUESTIONS 



1. How do the improvement and the feeding of stock go together? 

 '2. Which is the most important factor in improvement, feeding or 

 breeding? 3. Define and illustrate the law of heredity. 4. Is the 

 law of heredity of more practical value to the farmer than the law of 

 variation ? 5. What is meant by " grading up " a herd? 6. Con- 

 trast a "grade" witli a crossbred. 7. For what ideals should a 

 breeder strive? 8. As regards the food consumed, how do plants 

 differ from animals? 9. Give the function of each class of feed 

 for animals. 10. What points are considered in scientific feeding? 

 11. Define a balanced ration and a nutritive ratio. 12. Work out a 

 balanced ratio for a cow weighing 1000 pounds and giving 22 pounds 

 of milk daily. 13. Distinguish between a roughage and a concen- 

 trate. 



HOMK EXKRCISE 



1. Give a complete report on the methods of home feeding and 

 compare these methods with those of the standard tables so far as 

 they are given in the table. 



2. What pure-bred stock do you have? Ask your father whether 

 pure-bred stock pays. 



3. How much money does your father spend each year for feed ? 

 If there is an analysis given on the sacks, copy it and bring the 

 analysis to school. 



ySuGGESTIONS 



1. To illustrate the universal laws of heredity and variation, many 

 leaves of a tree, the apple leaf for instance, may be brought to school. 

 Each pupil may try to find two exactly alike. 



2. One hundred leavas should be measured and a graph (like those 

 made in algebra) of them may be placed en the board. Arrange the 

 graph as follows : 



For the smallest leaf, place a dot in the upper right-hand corner 

 above number 1, and opposite the number for centimeters (fractional 



