24 



N. H. Agricultural Experiment Station [Bulletin 303 



Table VI. Sumnwry Report According to the Three Brooder •Conditioms 



(All Groups 19S5-36) 



Brooder Condition 





— 'Jl 



it 



I* = 



Current 

 consumption 



Brooder plus under-heat 213 



Brooder plus raised 



wire floor 213 



Brooder plus 12" extension 212.7 



Per cent Pounds Pounds Kw. hr. Kw. hr. 



2.03 1.148 



2.07 

 3.3 



1.131 

 1.125 



3.115 



3.092 

 3.050 



457 

 361 



483* 2.276 



2.149 

 1.703 



* Of this amount 123 kw. hours were consumed by the heat-pad. 



these heat pads, which leads to the conchision tliat this method counter- 

 acts the effects of drafts ; whereas the extension brooder gave the effect 

 of eliminating them. 



Costs by Areas and Contents 



The heated area under the brooders tested is one basis of deter- 

 mining cost of operation by a standardized unit of measurement. Ob- 

 viously if the area and cubic contents vary, the cost of heating will vary. 

 The values obtained are given below. 



Particrdar importance is placed on the significance of the effect 

 on current consumed per scjuare foot of area or cubic foot of contents 

 by the brooders with 12" extension rims and an additional curtain, re- 

 ferred to in Table VII as lA, 2 A, and 3 A. Numbers 1, 2 and 3 are the 

 same brooders without extensions. A comparison of Brooder No. 2 



* Average 6 runs, 1933-34 conditions, 

 t 1935-36 conditions. 



