DISEASES OF THE HOG. 107 
nized in the pig. When pigs are fat they have very 
little breathing space left and therefore are not in 
a fit condition for fast movement. When it-be- 
comes necessary to drive pigs in this state, particu- 
larly if the day is hot, great care should be taken 
not to push them, but allow them to rest occasion- 
ally. I have known pigs which have been driven 
or chased when they would stray from the herd to 
fall down and never rise again. The exertion caused 
the heart to propel more blood to the lungs than 
they could receive in a natural state, causing dis- 
tention of the vessels which pressed on the air cells 
- preventing access’ of air resulting in suffocation. 
When the animal shows symptoms of fatigue it 
should be rested for a short time and be given a 
drink of water. It is also caused by colds, badly 
- ventilated houses and is the result of other dis- 
eases. 
Symptoms: The animal is in great distress; if it 
is standing its head will hang down and its fore- 
legs will be wide apart and its flanks heaving at 
the rate of one hundred per minute; the mouth will 
be partially open; the eyes are bloodshot; the heart 
beats tumultuously. In some cases there will be 
blood oozing from the nose; the pig soon becomes, 
unable to stand and it lies down on its breast with — 
its nose resting on the ground; the legs and ears ; 
are cold, and the mouth hot. If the animal is made 
to rise it will often squeal, but in the majority of 
~ cases it will not get up; the pulse is small and indis- 
tinct and the beat is difficult to make out; (which 
may be as many as one hundred and fifty per min- 
Sd, 
