230 THE STOCKFEEDER'S COMPANION 



The returns per acre (20 tons) of roots with bullock 

 feeding comes to about ;S, without taking into account 

 " manurial residue." With manurial residue accounted 

 for, the returns would be about 10, los. 



Weight of Pat Cattle by Measurement. 



It is not always possible to place an animal on the 

 scales, consequently one has to resort to other methods 

 of determining the live weight. A fairly easy method 

 is to take the average girth in feet, and the length of 

 the animal from a point just behind the shoulder to the 

 root of the tail, also measured in feet ; then by squaring 

 the girth, and multiplying this number by the length in 

 feet, a quarter of the result so obtained will then give the 

 weight of the animal in imperial stones. E.g.^ an animal 

 with 6-foot girth, and body 6J long, would be 



Girth squared x length ~- 4 = weight in imperial stones. 

 6 x 6 x 6^ -r 4 = 



36 x 6 -f 4 = 



234 -r 4 = 58^ imperial stones. 



The above would be approximate for a very fat 

 animal. If it is only moderately fat, at least one- 

 twentieth would have to be subtracted from the result, 

 and the amount deducted must be left to the judgment 

 of the person estimating the weight of the animal. 



Score-carding Cattle. 



The score card on p. 231 is used by the students in 

 the Winter School of Agriculture carried on by the 

 Herefordshire County Council. 



