The summary of analyses of variance for the 10 week bodv weight for 

 the combined average of the three experiments is given in Table 5. This 

 indicates that the differences in body weight resulting from the various 

 intensities and those resulting from dosages are both non-significant. 



Effect Upon Feed Conversion 



Table 2 presents the effect of light intensity and daily light dosage upon 

 feed conversion to 10 weeks of age. Based on the average of the results 

 from the three experiments the natural light group (two experiments only) 

 had the best feed conversion, 2.59 pounds of feed required per pound of 

 gain. The groups with the poorest feed conversion, 2.64 pounds, were the 

 15 foot candles with 12 hours, and the 15 and 120 foot candles with 24 hours. 



The summary of analyses of variance for the 10 week feed conversion 

 figures (Table 5) for the combined experiments indicates that tlie differ- 

 ences resulting from intensity and dosage were both non-significant. 



Table 3. The Effect of Light Intensity and Daily Light Dosage Upon Per Cent 

 Mortality to 10 Weeks ■>£ Age. 



* Two Experiments only 



Light Dosage Average: 12 Hours 1.61; 24 Hours 1.54 



Intensity Average: 15 Foot Candles 1..30: 60 Foot Candles 1.67: 120 Fool Candles 1.76 



Effect Upon Mortality 



i*('rccnt m<trlaiil\ In 10 weeks of age for the various light itilensities 

 and light dosages are found in Table 3. The morlaiil) ligures are low 



8 



