take on a yellow color, as do
the membranes of the mouth, back arched, hair looks rough, vomiting,
temperature elevated, constipation, although diarrhoea is sometimes
noticed. The urine is passed frequently, and is of a dark amber color.

TREATMENT: This disease requires careful feeding and plenty of exercise.
Give Calomel, ten to twenty grains, then follow with large doses of
regulator and tonic as prescribed on first page of this chapter. It is
important in this disease, especially if due to worms. Feed clean swill
and vegetables. Give hogs all the pure water they will drink.

KIDNEY CONGESTION

CAUSE: Hogs are subject to various injuries about the kidneys, due to a
large number of hogs piling up, exposure to cold, wet rains, etc.

SYMPTOMS: Small quantities of dark colored urine are passed frequently,
appetite poor, no energy to move about. Hogs lie around a great deal; at
times they may be paralyzed and drag their hind quarters.

TREATMENT: Apply cloths or blankets wrung out of hot water over the
loin; also give Potassium Acetate in twenty grain doses four or five
times a day in drinking water. Feed soft, sloppy food, containing
regulator and tonic as prescribed on the first page of this chapter. It
contains nerve stimulants, just what is required in paralysis.

[Illustration: Photograph of pig.]
GRAND CHAMPION DUROC BOAR.
Economy Stock Farm, Shenandoah, Iowa.

KIDNEY WORM

CAUSE: Damp, filthy surroundings seem to favor the growth of embryos of
this worm. They are taken into the digestive canal with the food and
eventually pass to the region of the kidneys, where they find conditions
favorable in which to multiply.

SYMPTOMS: May produce paralysis of the hind quarters, in which case the
animal would not exhibit such marked tenderness on being pressed over
the loins with the fingers as it would if the weakness of the hind
quarters was due to a sprain or to rheumatism of the loins. Occasionally
hogs may suffer from the presence of one or more worms in the kidneys;
but the ailment is rarely fatal, becoming so only after a long time of
suffering resulting in a degeneration of one or both kidneys. It is
almost impossible to diagnose the presence of worms in the kidneys of
hogs, except by chance through a microscopic examination of the urine.
If worms are found in the kidneys of a hog that has died or been
slaughtered for food it may then be reasonably supposed that other hogs
of the same herd not