Exercise -22 (Continued) 



go back on the nests after about 30 to 60 minutes, depending on the weather. 

 Treat birds with mercuric ointment on about fourteenth day of incubation. 



Step 6. — Test eggs on the seventh and fourteenth days and keep a record 

 for each nest showing the following facts: 



1. Date when set 



2. Variety and kind of eggs 



3. Number of eggs 



4. Seventh day, No. infertile eggs No. dead embryos 



5. Fourteenth day, No. dead embryos 



6. No. of hve chicks taken from the nest 



Step 7. — When the hatch is over, clean the nest and put the place in 



shape to house the hen and chicks for a few weeks or until the youngsters are 

 large enough to shift for themselves on range. 



Leading Questions. — 1. Where do you consider the best place to locate 

 hatching shelters? 



2. What type of hatching coop do you prefer and why? 



3. How large and how deep should a well-formed nest be made? 



4. What is the best time of day to select and set hens? 



5. What points would you require in such hens? 



6. Why do you darken the nest for the first few days of the incubation 

 period? 



7. How long does it take to care for ten hens and how many eggs can 

 they incubate? 



8. How many eggs could be cared, for in incubators during this time? 



9. Determine the proper routine for caring for setting hens? 



10. How does natural incubation compare with the artificial method in 

 efficiency? 



