ing held constant, the variance analysis revealed significant differences 

 between the breeds. 



The second analysis consisted of testing the average growth rates of 

 flocks of the two dominant breeds produced over a 15-month period by 

 the larger of the two integrated firms providing data for the study. 11 

 This analysis differs from the first in that differences between production 

 units are included, yet it also showed significant difference between 

 breeds. 



Flock Size and the Growth Rate 



An inverse relationship between flock size and growth rate would 

 tend to limit the flock size of the production unit. Since differences ex- 

 ist between broiler breeds, flocks of a given breed sold over a three- 

 month period were selected for this analysis. A total of 29 flocks rang- 

 ing in size from 3,954 to 18,763 broilers raised were used in the analysis. 

 No relationship between flock size and the rate of growth of broilers 

 was found in these flocks. 12 This indicates that further enlargement of 

 flock sizes is possible as long as conditions specified by integrators are 

 adhered to by the growers. 



The Production Unit and the Growth Rate 



The policy of the integrated firm is directed toward standardizing 

 flock management and the level of technology used in producing broilers. 

 Using the average daily rate of growth as a unit of measurement, it is 

 possible to appraise the results of this policy. 



Figure 5. Average Dailv Rates of Growth for Broilers 

 in 678 Flocks by Month of Sale, 1956-1958 



11 See Appendix Table 7. 



12 A Correlation coefficient of 0.034. 



11 



