ticity to its blood it will flow
under almost any circumstances. When any cord is left it is always safe to
tie it, and it is only when it is swollen and may possibly contain a loop
of the bowel that there is danger in doing so. By pressing upward any bulky
contents such danger is avoided. If torn or cut too close to be tied the
bleeding may be checked by applying alum, copperas, or for a fraction of a
second the end of an iron rod at a dull-red heat. If much blood has been
lost it may be requisite to transfuse several ounces of blood or of a weak,
common-salt solution into the open, umbilical vein.
URINE DISCHARGED THROUGH THE NAVEL (PERSISTENT URACHUS).
Before birth the urine passes from the bladder by a special tube through
the navel and navel string into the outer water bag (allantois). (Pl. XII.)
This closes at birth, and the tube shrinks into a fine cord up to the
bladder. It is only in the bull calf that it is liable to remain open,
doubtless because of the long, narrow channel through which the urine must
otherwise escape. The urethra, too, is sometimes abnormally narrow, or even
closed, in the male. If part of the cord remains, it should be tied and the
whole allowed to wither up naturally. If the cord has been removed and the
tube (urachus) protrudes, discharging the urine, that alone must be tied.
If there is nothing pendent the urachus must be seized, covered by the
skin, and a curved needle being passed through the skin and above the duct,
it may be tied along with this skin. A blister of Spanish flies, causing
swelling of the skin, will often close the orifice--so with the hot iron.
If the urethra of the male is impervious it can rarely be remedied.
INFLAMMATION OF THE URACHUS (NAVEL URINE DUCT).
This may originate in direct, mechanical injury to the navel in calving, or
shortly after, with or without the lodgment of irritant or septic matter on
its lacerated or cut end. The mere contact with healthy urine, hitherto
harmless, can now be looked on as becoming suddenly irritating. The
affection is usually marked by the presence of redness and swelling at the
posterior part of the navel and the escape of urine and a few drops of
whitish, serous pus from the orifice of the urachus. In those cases in
which urine is not discharged a tender swelling, like a thick cord
extending upward and backward from the navel into the abdomen, may be
identified. The navel enlargement may be considerable, but it is sol
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