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Common Diseases of Farm Animals by D. V. M. R. A. Craig
page 263 of 328 (80%)

The _symptoms_ of intestinal worms are not very evident in the average
drove of hogs. None of the other farm animals are such common hosts for
intestinal worms as hogs. But it is only in extreme cases of infection by
intestinal worms, and in stunted and poorly-cared-for hogs, that very
noticeable symptoms of disease are manifested. We must not take from the
above statement that it is unnecessary to resort to treatment unless in
exceptional cases. Intestinal worms interfere with the growth of young
hogs, and may irritate and inflame the intestine, causing chronic
indigestion, nervous symptoms, and in some cases death. This irritated and
inflamed condition of the intestine is best noted in the abattoir by the
ease with which the wall of the intestine that contains large numbers of
worms tears when handling it.

_The treatment_ of intestinal worms in hogs is both preventive and
medicinal. If the conditions in the pens and houses are such as to enable
the eggs and embryos to live for a long time, or the surroundings are
favorable for infection of the animals through their feed and water supply,
the herd may become badly infested with intestinal parasites. The
preventive treatment consists in keeping hogs in clean, well-drained yards
or pastures, and feeding them from clean troughs and concrete feeding
floors that can be washed, when necessary, in order to keep them clean.
Turpentine, given in a milk emulsion, is a common remedy for intestinal
worms in hogs. The dose is one teaspoonful for every eighty pounds weight.
This dose should be repeated daily for three days. The following vermifuge
can be recommended: Santonin three to five grains, calomel five to eight
grains. This is sufficient for one hundred pounds weight. If the pigs are
small and it requires two or three to weigh one hundred pounds, the large
dose should be given. If the hogs weigh one hundred pounds or more, they
should receive the small dose. The drove should be divided into lots of ten
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