Table 5. Summary of Analysis of Variance of (lomhinerl Experiments for 

 \^ eek Body Weights, Feed Conversion. Mortality and (^o- 

 effirients of Variability Values of V( eights of Broilers 

 Beared Under Various Light Intensities and Light 



Dosages. 



10 



Body Weights Feed Conversion Mortality 



Coefficit-nts of 

 \ ariai)ility 

 of Weights 



Source of Variation df 



Replications 6 



Intensity 6 



Dosage 3 



Intensity x Dosage 6 



Error 30 



Mean Squares 

 .0070 

 .0060 

 .0001 

 .0011 

 .0062 



Mean .Squares Mean Sfiuares Mean ."^cjuares 



.2.58.5* 



.001.5 



.0024 



.0007 



.0027 



2.2146 



.3603 



.0166 



1.5567 



3.3214 



0.0289 

 0.4254 

 0.0200 

 1.2711 

 2.5365 



* Statistically significant at the .01 level 



Part II — Light Intensity, Feed Form, and Floor Space Allotment 



Since in Part I, neither light intensity nor light dosage, within the ranges 

 employed, had any influence on feather picking, the two extremes of light 

 intensity were combined with two forms of feed and two floor space allot- 

 ments. The feed forms were mash and pellets, and the floor space allot- 

 ments were 1 square foot and % square foot per bird. 



Table 6. The Effect of Feed Form, Space Allotment, and Light Intensity Upon 

 Body Weight of Combined sexes at 10 Weeks of Age. 



Light Intensity 

 Feed Form 

 Floor Space 



15 foot candles 



Ma.-^h Pellets 



1 sq. ft 7.i sq. ft 1 sq. ft 7;{ i^q- 



ft 1 



120 foot candles 

 Mash Pellets 



?q. ft 73 sq. ft 1 s(i. ft -':i s(|. ft 



Experiments and 

 Replicates 



Average Weight in Pounds 



Average of 3 

 Experiments 



3.36 3.33 



3.52 



3.49 



3.31 



3.25 



3.50 



3.40 



Intensity Average: 15 Foot Candles 3.42; 120 Foot Candles 3.36 



Feed Form Average: Mash 3.31; Pellets 3.47 



Floor Space .Average: 1 Sq. Ft. 3.42; j:\ Scj. Ft. 3..% 



10 



