e gut passing into the abdomen.
A polypus in the womb is less easily recognized. At the time of calving it
may be felt through the open mouth of the womb and recognized by the
educated touch (it must be carefully distinguished from the mushroom-formed
cotyledons (Pl. XIII, fig. 2), to which in ruminants the fetal membranes
are attached). At other times, unless the womb is opened in the effort to
expel it, the polypus can be detected only by examining the womb with the
oiled hand introduced through the rectum.
Polypi may cause a mucopurulent discharge or they may only be suspected
when they prove an obstacle to parturition. The best way to remove them is
to put the chain of an ecraseur around the neck, or pedicle, of the tumor
and tear it through; or the narrow neck may be torn through by the
emasculator, or in an emergency it may be twisted through by rotating the
tumor on its axis. The removal of the tumor will allow calving to proceed;
after this the sore may be treated by a daily injection of one-half dram
sulphate of zinc, 1 dram carbolic acid, and 1 quart milk-warm water.
SIGNS OF PREGNANCY.
If a cow remains for three or four weeks after service without showing
signs of heat (bulling), she is probably pregnant. There are very
exceptional cases in which the well-fed cow will accept the bull weeks or
months after actual conception, and others equally exceptional in which the
well-thriven but unimpregnated female will refuse the male persistently,
but these in no way invalidate the general rule.
The bull, no matter how vigorous or how ardent his sexual instinct, can not
be made to pay any attention to a cow which is not in heat; hence
indications of pregnancy can be had from both the male and female side.
When she has conceived, the cow usually becomes more quiet and docile, and
lays on flesh and fat more rapidly, especially during the first four months
of gestation. The stimulus to digestion and nutrition created by the
demands of the growing fetus, added to the quieter and more uneventful
life, contributes to this result. Some feeders avail themselves of this
disposition to prepare heifers and cows speedily for the butcher.
The enlargement of the abdomen, and its dropping so that it bulges below
and to each side, while it falls in at the flank, between the outer angle
of the hip bone and the last rib, are significant features which, though
they may be caused by abdominal tumor or dropsy, are usually mark
|