10 POULTRY LABORATORY GUIDE 



EXERCISE IV 



Methods of Yarding and Construction of 



Fences 



If the birds are to be given free range, there are 

 no yards to be planned or fences to be built; but 

 if they are to be kept in confinement, the plan- 

 ning of the runs and the cost of fencing become 

 a big item in the cost of construction and repair. 



If the fowls are confined, notice whether each 

 pen has a single yard or two yards for alternating. 

 With double yards what are the advantages? 

 Are the yards in permanent sod, or is a system 

 of rotation cropping carried on ? 



Measure the yard and determine the number 

 of square feet per bird. How do the figures 

 correspond with the following : If the yard is in 

 permanent sod, a safe estimate is one hundred 

 square feet per bird. If a system of double 

 yarding is used or the green food is supplied 

 from outside sources, from twenty-five to thirty 

 square feet per bird is sufficient, simply for 

 exercise purposes. 



Note the presence or absence of shade in the 

 yards and the character and kind of shrubs used 

 for the same. 



If a system of crop rotation is carried on with 



