This article is from the Mastiffs Breed FAQ, by mmcbee@access.mountain.net (Mike McBee) with numerous contributions by others.
+ Temperament:
o Aggressive
o Fearful (inherited or lack of socialization).
o Shy
+ Structural faults:
o Limbs: weak pasterns, cow-hocks, straight shoulders,
stifles and/or hocks, elbows in or out instead of
parallel
o Bite: very undershot, overshot, crooked teeth, wry
(twisted) jaw
o Tail: abnormally short, kinked, bob tail
o Feet: flat (hare foot), loose toes, turned toes or feet
o Coat: long hair, no under coat, excessive white markings
(piebald)
o Movement: paddling, crossing, sidewinding, overreaching,
lack of drive.
+ Problems caused by their size:
o Expensive and difficult to take on an airplane once
mature
o Navigating steep stairs
o Getting into small cars
o Happy Tail (Crate Tail) syndrome - prone to abrasions
(often accompanied by considerable blood splattering)
from wagging against things.
 
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