192 JUDGING JACKS, JENNETS, AND MULES 



The following measurements are given as typical of this 

 breed : 



Tip to tip of ears 33 inches 



Width between eyes . 9 " 



Length of face (poll to end of upper lip) 33 " 



Circumference of jaw and face 40 



neck . 42 " 



girth 70 " 



flank 72 " 



arm 16i || 



" knee 16 



" canon 9i 



hock 19 " 



" canon ' lOj- " 



From poll (between ears) to end of tail (total length of 

 body) 84 inches. The principal factors to consider in 

 selecting the jack are weight, bone, style, action, constitution 

 and finish. A jack measuring 15| to 16 hands and weighing 

 about 1050 pounds in moderate flesh is a good standard to 

 follow in selection. 



Description of American Jack. — Hooper and Anderson^ 

 describe prize-winning jacks of today as having size and 

 weight, good legs and feet, and fluted bone of desirable 

 size. The head should be long, well formed, and the ears 

 33 inches or more from tip to tip. The prevailing color is 

 black with light points. The standard height at maturity 

 is 15 to 16 hands, such animals weighing from 1050 to 1150 

 pounds. The girth measurement ranges from 68 to 72 

 inches. The loin measurement should not be more than 

 one or two inches less than the girth measurement. The 

 canon bone should be from eight to nine and one-half 

 inches in circumference. A jack 15 hands, 3 inches high, 

 and weighing 1150 pounds should measure not less than 

 nine inches below the knee. The hock should be from 18 

 to 21 inches in circumference, the gaskin measurement 

 approximating 16 inches, and the rear canon 10 inches in 

 circumference. 



' Kentucky Agricultural Experiment Station. 



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