164 



Table 38. Mortality of immature house flies in the manure of laying 



hens collected 3 days after treatment of drinking water 



with CGA 72662 at 10 and 20 ppm was terminated. 



20 ppm 10 ppm Control 





15/15 



13/15 





15/15 



10/15 





15/15 



12/15 





15/15 



11/15 





15/15 



13/15 





15/15 



12/15 





14/15 



13/15 





15/15 



13/15 





15/15 



11/15 





15/15 



12/15 



Total Morta I i ty 



149/150 



120/150 



Mean Mortal i ty 



14.90A 



12.00B 



% Mortal i ty 



93.33 



80.00 



Corrected % Mortality 3 



98.97 



69-39 



6/15 



5/15 



2/15 



5/15 



5/15 



5/15 



12/15 



6/15 



4/15 



2/15 



52/150 



5.20C 



34.67 



Corrected using Abbott's formula: 

 ; treatment mortality - % check mortality . __ 

 100 - % check mortality 



Note: Means having different letters are significantly 

 different (p < 0.05) . 



