292 INCUBATION AND BROODING 



EXERCISES 



1. Why select eggs of uniform size, shape, and shell for 

 hatching purposes? 



2. Why are white-shelled eggs more easily affecteid by heat 

 than brown-shelled eggs ? 



3. Why should soiled eggs be rejected for incubation? 



4. Why should eggs for incubation not be held for several 

 days, particularly in warm weather? 



5. What is the purpose of disinfection in brooding chicks? 



6. Why is it important to keep the air in an incubator moist ? 



7. Why does sprinkling the eggs in the incubator cool them? 



8. Give some good methods of disinfection. 



HOME PROJECTS 



1. What method of incubation is used at your home, — 

 natural or artificial? Keep count of all eggs set by natural 

 method, the total number of chicks hatched, and calculate the 

 percentage of hatched eggs. 



2. Get permission to take charge of the incubator and pro- 

 duce a hatch of chicks, following directions as closely as pos- 

 sible, and calculate the percentage of eggs hatched. 



3. Get permission to take full charge of all eggs set and 

 hatched by the natural method at home, if the incubator is not 

 used. Calculate results. 



4. Feed young chicks for broilers, and by records ascertain 

 actual cost of production. 



