BllONCIITTIS IN CATTLE. 
177 
passages are various. If aiiv of the southern breeds are trans¬ 
planted far north, they will require a great deal of attention and 
nursing, in order to ward off this insidious and fatal affection. 
I have been twice consulted respecting a beautiful short-horned 
breed, which had been introduced into the northern counties 
of Scotland, and the greater part of which died evidently con¬ 
sumptive in less than two years. In the first case, I recom¬ 
mended one cross with the native breed, and then to go back to 
the Durhams. It perfectly succeeded. A constitution better 
suited to the climate was acquired, and, after one or two genera¬ 
tions, the form of the short-horn seemed to be scarcely affected, 
and certainly not one good quality was impaired. 
In the other case this was peremptorily objected to: the dete¬ 
rioration of the breed was regarded as certain. Then by gradu- 
allv usino; less nursing when the animal was w^ell, and a great 
deal more nursing as soon as this cough appeared, and by early 
bleeding, and the use of the febrifuge drink, we prevented any 
confirmed bronchitis, and the cattle were gradually inured to 
their new and colder climate. 
Unnecessary exposure to, and over-anxious care to preserve 
them from, cold and wet, are equally injurious. Cough and all 
its worst consequences are never more frequent than in a hot 
and crowded cowhouse, and to which fresh air is rarely ad¬ 
mitted. 
The food of the animal is often not a little concerned in the 
production of cough, and even bronchitis. I have seen many a 
chest affection rapidly and fatally succeeding to the substitution 
of mouldy hay, and bad straw for wholesome food. 
In proportion to the purity of the breed, and especially if the 
in-and-in system has been too closely followed, is the predisposi¬ 
tion to these chest complaints. 
To young cattle bronchitis is particularly destructive. When 
they are kept in the straw yard during winter upon scanty food, 
and the forward ones drive the others about and scarcely permit 
them to eat at all, pulmonary complaints are exceedingly fre¬ 
quent, from the combined influence of wet and cold, and fear and 
hunger. 
Bronchitis from Worms ,—There is one species of bronchitis 
which must not pass without observation. A yearling has often 
a cough unusually distressing. The intermissions are short, the 
paroxysms exceedingly violent. The beast is off his feed, hide¬ 
bound, his belly tucked up, his coat staring, his flanks heaving, 
and it is almost heart-breaking to hear him cough. This occurs 
principally on low, marshy, woody land; and is confined to young 
cattle, and principally yearlings. The farmer knows too well 
VOL. VI. Z 
