_Symptoms._--These should be carefully studied in order to diagnose this

from other forms of colic requiring quite different treatment. Spasmodic

colic always begins suddenly. If feeding, the horse is seen to stop

abruptly, stamp impatiently, and probably look back. He soon evinces

more acute pain, shown by pawing, suddenly lying down, rolling, and

getting up. During the period of pain the intestinal sounds, as heard by

applying the ear over the flank, are louder than in health. There is

then an interval of ease; he will resume feeding and appear to be

entirely well. In a little while, however, the pains return and are

increased in severity, only to pass off again for a time. As the attack

progresses these intervals of ease become shorter and shorter, and pain

may be continuous, though even then there are exacerbations of pain.

Animals suffering from this form of colic evince the most intense pain;

they throw themselves, roll over and over, jump up, whirl about, drop

down again, paw, or strike rather, with the front feet, steam and sweat,

and make frequent attempts to pass their urine. Only a small quantity of

water is passed at a time; this is due to the bladder being so

frequently emptied. These attempts to urinate are often regarded by

horsemen as symptoms of trouble of the kidneys or bladder. In reality

they are only one of the many ways in which the horse expresses the

presence of pain. As a matter of fact, diseases of the bladder or

kidneys of the horse are exceedingly rare.

To recapitulate the symptoms of spasmodic colic: The history of the

case, the type of horse, the suddenness of the attack, the increased

intestinal sounds, the intervals of ease (which become of shorter

duration as the case progresses), the violent pain, the normal

temperature and pulse during the intervals of ease, the frequent

attempts to urinate, etc., should be kept in mind, and there is then but

little danger of confounding this with other forms of colic.

_Treatment._--Since the pain is due to spasm or cramp of the bowels,

medicines that overcome spasms--antispasmodics--are the ones indicated.

Chloral hydrate may be used. This is to be given in a dose of 1 ounce in

a pint of water as a drench. As this drug is irritant to the throat and

stomach, it has to be well diluted. A common and good remedy is

sulphuric ether and laudanum, of each 2 ounces, in a half pint of

linseed oil. Another drench may be composed of 2 ounces each of

sulphuric ether and alcohol in 8 ounces of water. If nothing else is at

hand give whisky, one-half pint in hot water. Jamaica ginger is useful.

If relief is not obtained in one hour from any of the above doses, they

may then be repeated. The body should be warmly clothed and perspiration

induced. Blankets dipped in very hot water to which a small quantity of

turpentine has been added should be placed around the belly and covered

with dry blankets or the abdomen may be rubbed with stimulating

liniments or mustard water. The difficulty, however, of applying hot

blankets and keeping them in place forces us in most instances to

dispense with them. If the cramp is due to irritants in the bowels, a

cure is not complete until a cathartic of 1 ounce of aloes or 1 pint of

linseed oil is given. Injections of warm, soapy water or salt and water

into the rectum aid the cure.

Rectal injections, clysters, or enemas as a rule should be lukewarm, and

from 3 to 6 quarts are to be given at a time. They may be repeated every

half hour if necessary. Great care is to be taken not to injure the

rectum in giving such injections. A large syringe or a piece of rubber

hose 4 or 5 feet long, with a funnel attached at one end, affords the

best means by which to give them. The pipe of the syringe or the hose

introduced into the rectum must be blunt, rounded, and smooth; it is to

be thoroughly oiled and then carefully pushed through the anus in a

slightly upward direction. Much force must be avoided, for the rectum

may be lacerated and serious complications or even death result.

Exercise will aid the action of the bowels in this and similar colicky

troubles, but severe galloping or trotting is to be avoided. If the

horse can have a loose box or paddock, it is the best, as he will then

take what exercise he wants. If the patient is extremely violent, it is

often wise to restrain him by leading him with a halter, since rupture

of the stomach or displacement of the bowels may result and complicate

the trouble.

INDIGESTION OR GASTROINTESTINAL CATARRH.

From the facts that they merge insensibly into each other and usually

occur simultaneously, there is ample reason for considering these

conditions together. This condition may be acute--that is, of sudden

onset--or it may be chronic. The changes of structure produced by this

disease occur in the mucous membrane lining of the stomach and

intestines. This membrane becomes red from increased blood supply or

from hemorrhage into it, is swollen, and is covered by a coating of

slimy mucus. In some especially severe cases the membrane is destroyed

in spots, causing the appearance of ulcers or of erosions.

The causes of indigestion are numerous, but nearly all are the result of

errors in feeding.

Some horses are naturally endowed with weak digestive organs, and such

are predisposed to this condition. Anything that irritates the stomach

or intestines may cause this disease. Feeds that the animal is

unaccustomed to, sudden changes of diet, imperfectly cured, unripe, or

damaged feeds are all fruitful causes, and so are worms. In suckling

foals this condition may come from some disease of the dam that renders

her milk indigestible, or from overexertion or overheating of the mare.

Another prolific cause is bad teeth, making mastication imperfect, and

thus causing the horse to swallow his feed in a condition unfit for the

action of the digestive juices. Working a horse too soon or too hard

after feeding may cause either colic or indigestion. Any condition that

reduces the vitality, such as disease, overwork, poor feed, or lack of

care, may directly bring on indigestion by weakening the digestive

organs.

_Symptoms._--Indigestion is characterized by irregular appetite;

refusing all feed at times, and at others eating ravenously; the

appetite is not only irregular, but is often depraved; there is a

disposition on the part of the horse to eat unusual substances, such as

wood, soiled bedding, or even his own feces; the bowels are irregular

to-day, loose and bad smelling, to-morrow bound; whole grain is often

passed in the feces, and the hay passed in balls or impacted masses,

undergoing but little change; the horse frequently passes considerable

quantities of sour-smelling wind. The animal loses flesh, the skin

presents a hard, dry appearance and seems very tight (hidebound). If the

stomach is very seriously involved, the horse may yawn by stretching

the head forward and upward and by turning the upper lip outward. There

may be more or less colicky pain. In the chronic cases there is mental

depression; the horse is sluggish and dull. The abdomen gradually

becomes small, giving a "tucked up" appearance, or, on the other hand,

it becomes flaccid and pendulous.

_Treatment._--One should commence with the feed--its quality, quantity,

and time of feeding; examine the water supply, and see, besides, that it

is given before feeding; then carefully observe the condition of the

mouth and teeth; and, continuing the observations as best we may,

endeavor to find the seat of the trouble. If the teeth are sharp or

irregular they must be rasped down; if any are decayed they must be

extracted; if indigestion is due to ravenous eating or bolting, the feed

must then be given from a large manger where the grain can be spread and

the horse thus compelled to eat slowly.

Any irritation, such as worms, undigested feed, etc., that is operating

as a cause is to be removed by appropriate treatment, as advised

elsewhere. If there is a tendency to distention of the stomach and

bowels, with gas, during indigestion, the following may be used: Baking

soda, powdered ginger, and powdered gentian, equal parts. These are to

be thoroughly mixed and given in heaping tablespoonful doses, twice a

day, before feeding. This powder is best given by dissolving the

above-named quantity in a half pint of water and given as a drench.

As a digestive tonic the following is good: Glauber's salt, 2 pounds;

common salt, 1 pound; baking soda, one-half pound. Of this a heaping

tablespoonful may be given in each feed. If diarrhea exists, the

treatment advised below may be used.

DIARRHEA.

Diarrhea is due to indigestion or intestinal catarrh or to irritation of

the bowels from eating moldy or musty feed, drinking stagnant water,

diseased condition of the teeth, eating irritating substances, to being

kept on low, marshy pastures, and to exposure during cold nights, or in

low, damp stables. Some horses are predisposed to scour and are called

"washy" by horsemen; they are those with long bodies, long legs, and

narrow, flat sides. Horses of this build are almost sure to scour if fed

or watered immediately before being put to work. Fast or road work, of

course, aggravates this trouble. Diarrhea may exist as a complication of

other diseases, as pneumonia and influenza, for instance, and again

during the diseases of the liver.

The symptoms are the frequent evacuations of liquid stools, with or

without pronounced abdominal pain, loss of appetite, emaciation, etc.

_Treatment_ is at times very simple, but requires the utmost care and

judgment. If due to faulty feed or water it is sufficient to change

these. If it results from some irritant in the intestines this is best

gotten rid of by the administration of an oleaginous purge, for which

nothing is better than castor oil, although raw linseed oil may be used

if the case is not severe. The diarrhea often disappears with the

cessation of the operation of the medicine. If, however, purging

continues it may be checked by giving wheat flour in water, starch

water, white-oak bark tea, chalk, opium, or half-dram doses of sulphuric

acid in one-half pint of water twice or thrice daily. Good results

follow the use of powdered opium 2 drams and subnitrate of bismuth 1

ounce, repeated three times a day. In all cases it should be remembered

to look to the water and feed the horse is receiving. If either of these

is at fault it is at once to be discontinued. We should feed sparingly

of good, easily digested feeds. With that peculiar build of nervous

horses that scour on the road but little can be done as a rule. They

should be watered and fed as long as possible before going on a drive.

If there is much flatulency accompanying diarrhea baking soda or other

alkaline medicines may effect a cure, while if the discharges have a

very disagreeable odor it may be corrected by 1 ounce of sulphite of

soda or dram doses of creolin in water, repeated twice a day. Be slow to

resort to either the vegetable or mineral astringents, since the

majority of cases will yield to change of feed and water or the

administration of oils. Afterwards feed upon wheat-flour gruel or other

light feeds. The body should be warmly clothed.

SUPERPURGATION.--This is the designation of that diarrhea, or flux from

the bowels, that, at times, is induced by and follows the action of a

physic. It is accompanied with much irritation or even inflammation of

the bowels and is always of a serious character. Although in rare

instances it follows from a usual dose of physic and where every

precaution has been taken, it is most likely to result under the

following circumstances: Too large a dose of physic; giving physics to

horses suffering from pneumonia, influenza, or other debilitating

diseases; riding or driving a horse when purging; exposure or drafts of

cold air; or giving large quantities of cold water while the physic is

operating. There is always danger of superpurgation if a physic is given

to a horse suffering from diseases of the respiratory organs. Small and

often-repeated physics are also to be avoided, as they produce debility

and great depression of the system and predispose to this disorder. When

a physic is to be given one should rest the horse and give him sloppy

feed until the medicine begins to operate; clothe the body with a warm

blanket; keep out of drafts; give only warm water in small quantities.

After a horse has purged from twelve to twenty-four hours it can mostly

be stopped, or "set," as horsemen say, by feeding on dry oats and hay.

Should the purging continue, however, it is best treated by giving

demulcent drinks--linseed tea and oatmeal or wheat-flour gruel. After

this the astringents spoken of for diarrhea may be given. Besides this

the horse is to receive brandy in doses of from 2 to 4 ounces, with milk

and eggs, four or five times a day.

Laminitis ("founder") is a frequent sequel of superpurgation and is to

be guarded against by removing the shoes and standing the horse on moist

sawdust or some similar bedding.

DYSENTERY.

This disease, sometimes called "bloody flux," is an intestinal disease

attended with fever, occasional abdominal pains, and fluid discharges

mingled with blood. Discharges in dysentery are coffee colored or

bloody, liquid, and very offensive in odor, and passed with much

straining. It is rare in the horse, but is sometimes quite prevalent

among foals.

_Causes._--Probably the most common cause is keeping young horses in

particular for a long time on low, wet, marshy pastures, without other

feed (a diarrhea of long standing sometimes terminates in dysentery);

exposure during cold, wet weather; decomposed feeds; stagnant water that

contains large quantities of decomposing vegetable matter; low, damp,

and dark stables, particularly if crowded; the existence of some

disease, as tuberculosis of the abdominal form. In suckling foals it may

come from feeding the dam on irritant feeds or from disease of the

udder. In other foals it may be produced by exposure to cold and damp,

to irritant feed, or to worms.

_Symptoms._--The initial symptom is a chill, which probably escapes

notice in the majority of instances. The discharges are offensive and

for the most part liquid, although it is common to find lumps of solid

fecal matter floating in this liquid portion; shreds of mucous membrane

and blood may be passed or the evacuations may be mucopurulent; there is

much straining, and, rarely, symptoms of abdominal pain; the subject

lies down a great deal; the pulse is quickened and the temperature

elevated. Thirst is a prominent symptom. In the adult, death rarely

follows under two to three weeks, but in foals the disease may end in

death after a few days.

_Treatment._--This is most unsatisfactory, and I am inclined to place

more dependence upon the care and feed than any medication that may be

adopted. First of all the horse must be placed in a dry, warm, yet

well-ventilated stable; the skin is to receive attention by frequent

rubbings of the surface of the body, with blankets, and bandages to the

legs. The water must be pure and given in small quantities; the feed,

that which is light and easily digested. Medicinally, give at first a

light dose of castor oil, about one-half pint, to which has been added 2

ounces of laudanum. The vegetable or mineral astringents are also to be

given. Starch injections containing laudanum often afford great relief.

The strength must be kept up by milk punches, eggs, beef tea, oatmeal

gruel, etc. In spite of the best care and treatment, however, dysentery

is likely to prove fatal. In the case of nurslings, the dam should be

placed in a healthy condition or, failing in this, milk should be had

from another mare or from a cow.

GASTROENTERITIS.

This condition consists in an inflammation of the stomach and

intestines. Instead of being confined to the mucous, or lining,

membrane, as in gastrointestinal catarrh, the inflammatory process

extends deeper and may even involve the entire thickness of the wall of

the organ.

This disease may be caused by irritant feed, hot drinks, sudden

chilling, moldy or decayed feeds, foul water, parasites, or by chemical

poisons. It may also complicate some general diseases, especially

infectious diseases, as anthrax, influenza, rabies, or petechial fever.

Long-continued obstruction of the bowels or displacement resulting in

death are preceded by enteritis.

_Symptoms._--The symptoms differ somewhat with the cause and depend

also, to some extent, upon the chief location of the inflammation. In

general the animal stops eating or eats but little; it shows colicky

pain; fever develops; the pulse and respiration become rapid; the mucous

membrane becomes red; the mouth is hot and dry. Pressure upon the

abdomen may cause pain. Intestinal sounds can not be heard at the flank.

There is constipation in the earlier stages that is, followed later by

diarrhea. The extremities become cold. Sometimes the feces are coated

with or contain shreds of fibrin, looking like scraps of dead membrane,

and they have an evil, putrid odor. If the disease is caused by moldy or

damaged feed there may be great muscular weakness, with partial

paralysis of the throat, as shown by inability to swallow. If chemical

poisons are the cause, this fact may be shown by the sudden onset of the

disease, the history of the administration of a poison or the entire

absence of known cause, the rapid development of threatening symptoms,

the involvement of a series of animals in the absence of a contagious

disease, and the special symptoms and alterations known to be produced

by certain poisons. To make this chain of evidence complete, the poison

may be discovered in the organs of the horse by chemical analysis. In

nearly all cases of gastro-enteritis there is nervous depression.

The poisons that are most irritant to the digestive tract are arsenic,

corrosive sublimate, sugar of lead, sulphate of copper, sulphate or

chlorid of zinc, lye, or other strong alkalies, mineral acids, and,

among the vegetable poisons, tobacco, lobelia, and water hemlock.

_Treatment._--The treatment will depend upon the cause, but if this can

not be detected, certain general indications may be observed. In all

cases feed should be given in small amounts and should be of the most

soothing description, as oatmeal gruel, flaxseed tea, hay tea, fresh

grass, or rice water. The skin should be well rubbed with alcohol and

wisps of straw, to equalize the distribution of the blood; the legs,

after being rubbed until warm, should be bandaged in raw cotton or with

woolen bandages. The horse should be warmly blanketed. It is well to

apply to the abdomen blankets wrung out of hot water and frequently

changed; or mustard paste may be rubbed on the skin of the belly.

Internally, opium is of service to allay pain, check secretion, and

soothe the inflamed membrane. The dose is from 1 to 2 drams, given every

three of four hours. If there is constipation, the opium should be mixed

with 30 grains of calomel. Subnitrate of bismuth may be given with the

opium or separately in 2-dram doses. Stimulants, such as alcohol,

aromatic spirits of ammonia, or camphor may be given in 2-ounce doses,

mixed with warm water to make a drench.

If putrid feed has been consumed, creolin may be administered in doses

of 2 drams, mixed with 1 pint of warm water or milk. If there is

obstinate constipation and if a laxative must be employed, it should be

sweet or castor oil, from 1 pint to 1 quart.

_Antidotes for poisons._--For the various poisons the remedies are as

follows:

Arsenic: Oxyhydrate of iron solution, 1 pint to 1 quart; or calcined

magnesia, one-half ounce in 1 pint of water.

Corrosive sublimate (bichlorid of mercury): The whites of a dozen eggs,

or 2 ounces of flowers of sulphur.

Sugar of lead: Glauber's salt, 1 pound in 1 quart of warm water; to be

followed with iodid of potash, 3 drams at a dose, in water, three times

daily for five days.

Sulphate of copper: Milk, the whites of eggs, or reduced iron.

Sulphate or chlorid of zinc: Milk, the whites of eggs, or calcined

magnesia.

Lye or alkalies, as caustic potash or soda: Vinegar, dilute sulphuric

acid, and linseed tea, with opium, 3 drams.

Mineral acids: Chalk, or calcined magnesia, or baking soda; later give

linseed tea and opium.

HEMORRHOIDS, OR PILES.

These are rare, comparatively, in horses. They are diagnosed by the

appearance of bright-red irregular tumors after defecation, which may

remain visible at all times or be seen only when the horse is down or

after passing his manure. They are mostly due to constipation,

irritation, or injuries, or follow from the severe straining during

dysentery. I have observed them to follow from severe labor pains in the

mare.

_Treatment._--Attention must be paid to the condition of the bowels;

they should be soft, but purging is to be avoided. The tumors should be

washed in warm water and thoroughly cleansed, after which scarify them

and gently but firmly squeeze out the liquid that will be seen to follow

the shallow incisions. After thus squeezing these tumors and before

replacing through the anus, bathe the parts with some anodyn wash. For

this purpose the glycerite of tannin and laudanum in equal parts is

good. Mucilaginous injections into the rectum may be of service for a

few days.

HERNIA, OR RUPTURE.

There are several kinds or hernias that require notice, not all of

which, however, produce serious symptoms or results. Abdominal hernias,

or ruptures, are divided into reducible, irreducible, and strangulated,

according to condition; and into inguinal, scrotal, ventral, umbilical,

and diaphragmatic, according to their situation. A hernia is reducible

when the displaced organ can be returned to its natural location. It

consists of a soft swelling, without heat, pain, or any uneasiness,

generally larger on full feed, and decreases in size as the bowels

become empty. An irreducible hernia is one that can not be returned into

the abdomen, and yet does not cause any pain or uneasiness. Strangulated

hernia is one in which the contents of the sac are greatly distended, or

when from pressure upon the blood vessels of the imprisoned portion the

venous circulation is checked or stopped, thereby causing congestion,

swelling, inflammation, and, if not relieved, gangrene of the part and

death of the animal. According to the time or mode of origin, hernias

may be congenital or acquired.

CONGENITAL SCROTAL HERNIA.--Not a few foals are noticed from birth to

have an enlarged scrotum, which gradually increases in size until about

the sixth month, sometimes longer. Sometimes the scrotum of a

six-months-old colt is as large as that of an adult stallion, and

operative treatment is considered. This is unnecessary in the great

majority of cases, as the enlargement often disappears by the time the

colt has reached his second year. Any interference, medicinal or

surgical, is worse than useless. If the intestine contained within the

scrotum should at any time become strangulated, it must then be treated

the same as in an adult horse.

SCROTAL HERNIA is caused by dilatation of the sheath of the testicle,

combined with relaxation of the fibrous tissues surrounding the inguinal

ring, thus allowing the intestine to descend to the scrotum. At first

this is intermittent, appearing during work and returning when the horse

is at rest. For a long time this form of hernia may not cause the least

uneasiness or distress. In course of time, however, the imprisoned gut

becomes filled with feces, its return into the abdominal cavity is

prevented, and it becomes strangulated. While the gut is thus filling

the horse often appears dull, is disinclined to move, appetite is

impaired, and there is rumbling and obstruction of the bowels. Colicky

symptoms now supervene. Strangulation and its consequent train of

symptoms do not always follow in scrotal hernia, for often horses have

this condition for years without suffering inconvenience.

Special Report on Diseases of the Horse · 第 8 / 71 段