127 



Table 21. Average hen-day product ion (%) of hens fed diets containing 

 TH 6040 and ZR-515 at 1 and 10 ppm. 



Growth Regulator 

 Period 3 ZR-515 TH 6040 Control 



1 

 2 

 3 



k 

 5 



Dietary Level -- 10 ppm 



51.35 



50.39 



52.41 



kl.kS 



36.95 



31.73 



53.10 



52.76 



46.07 



61.66 



73.30 



66.14 



37-36 



65.88 



65.17 



49.09A 55. 96A 52.30A 



Dietary Level -- 1 ppm 

 26.94B 62.56C 57-87C 



Average hen-day production was calculated at the end of each 

 21-day period. 



Note : Mean values in the same row without common letters are 

 significantly different (p < 0.01) according to Duncan's Multiple 

 Range Test. 



