SPECIAL REPORT ON DISEASES OF CATTLE
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t some condition of the soil and water and of the local vegetation is responsible for it. It is more prevalent some years than others, and is most common in old countries, where the soi
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e contents of the hernia having been returned, the surface of skin corresponding to it is sponged over with a solution composed of 1 part of nitric acid to 2 of water. This treatment ac
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common brake or bracken fern, _Pteris aquilina_, has been considered responsible for the poisoning of many horses and cattle. Many cases have been reported in England and Germany, and
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very convenient for the purpose. THE EXAMINATION OF THE HEART. Corresponding to the beats of the heart two sounds are emitted which are of a definite type in healthy animals. The fi
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applied against the chest will detect a to-and-fro friction sound, corresponding to the beats of the heart. This sound is produced by the rubbing of the internal surface of the heart ba
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he skin should be drawn forward so that the external wound may not correspond to the puncture of the chest, to prevent the entrance of air. Only a portion of the fluid should be removed
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travasated blood may be found inside of the cavity in the location corresponding to the place where the injury was inflicted externally. In some cases pus is also discovered. It remains
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ling. It is thought by some that some toxic influence (poison) may be responsible for its development. _Symptoms._--The symptoms usually appear suddenly and consist in inability to sta
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arrhea, for example, or of excessive secretion of milk, there is a corresponding diminution of the water of the blood, and as the whole quantity of the blood is thus decreased and as th
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pelvis and two or more projections that have been molded into the corresponding branches or channels which lead to corresponding lobes of the kidney. In winter and spring small concret
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tors, it being now generally accepted that the disease is only rarely responsible for abortion, and further, that it exerts no apparent ill effects on the health of the animal and that
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the transverse diameter of that is greatly diminished and delivery correspondingly facilitated. If the head is still inclosed in the vagina two methods are available: (1) The removal o
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ery minute hairlike processes on the chorion (_E_), which fit into corresponding depressions or pits of the maternal portion. Each portion is abundantly supplied with blood vessels, so
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by soft, conical processes, which are received into cavities of a corresponding size on the summit of the firm, mushroom-shaped cotyledon growing from the inner surface of the womb. To
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Pricking the skin with a pin also fails to bring any wincing or other response. The pulse, at first from 50 to 70 a minute, becomes weaker and more accelerated as the disease advances.
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e leg above the fetlock or on the inner and fore part of the hock, corresponding in its location to windgalls and bog spavin of the horse. Continuous support by bandages will generally
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made, take a light piece of wood about the size of a lead pencil, corresponding in length to the size of the wound or slightly longer, and insert it through each of the loops, drawing
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skin, and, when removed by maceration, presents depressions which correspond to the elevations on the dermis. From the cuticle tubular prolongations pass into the sebaceous and sudorif
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e eyelids from intolerance of light, retraction of the eyeball and corresponding protrusion of the haw, disinclination to move, diminution of milk secretion, etc. On parting the lids th
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. The eyeball remains clear, and the pupil is permanently dilated. No response to light is manifested. _Treatment._--If caused by debility, loss of blood, or associated with rheumatism
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cation and of setting free certain peculiar poisons which are chiefly responsible for the morbid changes. This definition might include diseases caused by certain animal parasites, suc
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the lung. This disease is frequently called the lung plague, which corresponds to its German name of Lungenseuche. In French it is spoken of as the pĂripneumonie contagieuse. The histo
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e fingers of the right hand--an area of dullness may be discovered corresponding to the portion from which the respiratory murmur has disappeared. This loss of respiration detected by a
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nce ascertained, or from the owner's name the cattle for which he was responsible could be at once learned. In this way, if an animal was missing from a stable, the fact became apparent
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ay become turbid. The inoculation test in the case of cowpox does not respond with fever and eruption for at least 10 days, and often longer. Necrotic stomatitis (sore mouth due to a g
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h blood. Finally a severe diarrhea takes place, the animal becomes correspondingly weak, and death takes place in 24 to 36 hours. Cases may die in as short a period as six to eight hour
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er artificial conditions, and the bacilli were short, stubby rods, corresponding in appearance to the bovine type. At the autopsy, held 127 days after the inoculation, the general condi
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tinomycosis in cattle. In man the location of the disease process corresponds fairly well to that in cattle. The majority of cases which have been reported in different parts of the wo
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to the American stockman on account of the damage for which they are responsible. It is these parasites particularly which will be referred to in the present article, and although some
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rendered much safer than under the poor sanitary conditions which are responsible for the high percentage of tapeworm cysts among cattle in the United States. THREAD WORMS IN THE ABDO
done. When the animal has fallen, apply cold water or ice to the head; rub
the body and limbs with cloths or wisps of straw and continue the rubbing
for a considerable time. If the power of swallowing is not lost (which may
be ascertained by pouring a little cold water into the mouth), give 3 drams
of stronger liquor ammonia, diluted with a quart of cold water. Be very
careful in drenching the animal when lying down. Repeat the drench in a
half hour and an hour after the first one has been given. Instead of the
ammonia, a drench composed of 3 ounces of spirits of nitrous ether in a
pint of water may be given, if more convenient, but the ammonia drench is
preferable. If unconsciousness continues, so that a drench can not be
administered, the same quantity of ammonia and water may be injected with a
syringe into the rectum. The popular aqua ammonia, commonly called
"hartshorn," will do as well as the stronger liquor ammonia, but as it is
weaker than the latter the dose for a cow is about 1-1/2 ounces, which
should be diluted with a quart of water before it is given to the animal,
either as a drench or an enema. When ammonia can not be obtained, an ounce
of tincture of digitalis may be given.
As soon as the animal is able to rise it should be assisted and moved to
the nearest shelter. All the cold water it will drink should be allowed.
The ammonia or spirits of nitrous ether drench should be administered every
three hours so long as there is much failure of strength. The diet should
be limited for several days--bran slops and a little grass. When signs of
returning strength are presented, 12 ounces of Epsom salt dissolved in a
quart of warm water may be given in those cases which have been down and
unconscious, but do not give it while much weakness remains, which may be
for several days after the attack. The flesh of an animal that is suffering
from heat stroke should not be prepared for use as food. On account of the
fever with which the animal suffers, the flesh contains toxins that may
render it poisonous to the consumer.
INJURIES TO THE SPINAL CORD.
The spinal cord is liable to concussion from blows and falls, and
paralysis, to a greater or less extent, may be the result. Fracture, with
displacement of the bones (vertebrĂ) which form the spinal column, by
compressing the spinal cord, produces paralysis, which varies in its effect
according to the part of the cord that is compressed. If the fracture is
above the middle of the neck, death soon follows, as communication between
the brain and diaphragm (the essential muscle of inspiration) is stopped.
When the fracture is farther down in the neck, posterior to the origin of
the phrenic nerve, the breathing continues, but there is paralysis in all
parts posterior to the fracture, including the fore and hind legs. When the
fracture is in the region of the loins the hind legs are paralyzed, but the
fore legs are not. If the fracture is in the sacrum (the division of the
spinal column between the loins and the tail), the tail alone is paralyzed.
As a matter of course, when the back is broken there is no remedy; the
animal should be killed at once.
PARALYSIS.
Paralysis, or loss of motion in a part, may be due to a lesion of the
brain, of the spinal cord, or of a nerve. It may also be caused by reflex
irritation. When the paralysis affects both sides of the body, posterior to
a point, it is further designated by the name paraplegia. When one side of
the body (a lateral half) is paralyzed, the term hemiplegia is applied to
the affection. When paralysis is caused by a lesion of a nerve, the
paralysis is confined to the particular part supplied by the affected
nerve.
As already pointed out, paralysis may be due to concussion of the spine,
fracture of a bone of the spinal column with consequent compression of the
spinal cord, concussion of the brain, or compression of the brain. An
injury to one side of the brain may produce paralysis of the same side of
the head and of the opposite side of the body (hemiplegia). Paralysis may
occur in connection with parturient apoplexy, lead poisoning, ergotism,
etc.
CONGESTION OF THE SPINAL CORD.
Paraplegia, or paralysis of the rear part of the body, is the dominant
symptom in congestion or inflammation of the spinal cord. The cause is not
known, but the disease is probably due to chilling. It is thought by some
that some toxic influence (poison) may be responsible for its development.
_Symptoms._--The symptoms usually appear suddenly and consist in inability
to stand. Sometimes this is preceded by a period of excitement. The animal
usually lies quietly, but sometimes it groans and tosses its head about in
a way that indicates pain. Cows heavy with calf are sometimes affected with
a form of paraplegia, which usually attacks them from about a month to a
few days before calving. Apparently they are in good health in every
respect except the inability to stand up on account of the paralysis of the
hind quarters. This form is generally attributed to feeding on feeds
containing insufficient protein and ash. It is most likely to occur in cows
that are weak and thin. With good care and feed recovery usually occurs.
_Treatment._--The animal must be given a soft, dry bed under shelter and in
a quiet, airy place. It is well to apply mustard along the spine. The
action of the mustard may be intensified by rubbing the skin with ammonia
or turpentine. Internally give a purge of Glauber's salt. Nux vomica or
strychnia (1 to 2 grain doses) may be given. Turn the cow two to four times
daily and rub the legs well each time.
There are instances when cows will persist in lying down (in spite of all
efforts that are made to compel them to stand up), when it can not really
be said that they are paralyzed. They have sensation in all parts; they can
move all their feet; they can change their position; and in fact every
function seems to be normally performed, but they obstinately refuse to
rise or even make an effort to do so. Cases of this kind have been killed,
as it was an utter impossibility to get the animal on its feet. However,
there are instances when a cow, after refusing to rise when all other means
had been tried, quickly jumped to her feet and showed fright upon the
appearance of a dog or other terrifying object.
RABIES (HYDROPHOBIA).
[See discussion of this disease in chapter on "Infectious diseases," p.
358.]
LIGHTNING STROKE (ASPHYXIA ELECTRICA).
When an animal is struck by lightning the shock is instantaneously expended
on the nervous system, and as a rule death occurs immediately; but when the
shock is not fatal animation is suspended to a greater or less extent, as
evidenced by prostration, unconsciousness, and paralysis.
_Symptoms._--When not fatal, the symptoms vary much, according to the
severity of the shock. The animal usually falls, as from an apoplectic
attack, and, as a matter of course, the symptoms are such as are generally
manifested in connection with concussion of the brain. The muscular system
may be completely relaxed; the legs limber; the muscles flabby and soft to
the touch; or there may be convulsions, spasms, and twitching of the
muscles. The breathing is generally labored, irregular, or interrupted, and
slower than normal. In most instances the electrical fluid leaves its mark
by singeing the hair, or by inflicting wounds, burns, or blisters.
_Treatment._--So long as the beating of the heart is perceptible the
endeavor to resuscitate the animal should be continued. Dash cold water
over the head and body; rub the body and legs; smartly whip the body with
wet towels or switches. Mustard, mixed with water, should be well rubbed
over the legs and back of the head on each side of the neck. Inject into
the rectum 4 drams of stronger liquor ammonia, or 1-1/2 ounces of hartshorn
diluted with a quart of warm water. Cautiously hold an uncorked bottle of
hartshorn to the nostrils, so that some of it is inhaled, but care should
be taken that too much is not suddenly inhaled. If the animal is
unconscious, hypodermic injections of stimulants are indicated, such as 6
drams of camphorated oil in one dose, subcutaneously, or 20 grains of
caffein or 1/2 grain of strychnin, also subcutaneously.
When the animal revives sufficiently to be able to swallow, 4 drams of the
stronger liquor ammonia, diluted with a quart of cold water, should be
given as a drench, and the dose should be repeated in an hour. One and
one-half ounces of ordinary hartshorn may be used instead of the stronger
liquor ammonia, but, like the latter, it should be diluted with a quart or
more of water, and even then care should be exercised in drenching.
In cases where the shock has not caused complete insensibility recovery may
be hastened by the ammonia and water drench, or 4 ounces of brandy diluted
with a quart of water, or 8 ounces of whisky diluted with a quart of water.
These doses may be given every three or four hours if necessary. After
recovery from the more serious symptoms 2 drams of sulphate of quinin
should be given twice a day until health is restored. If any paralysis
remains 1-1/2 drams of pulverized nux vomica should be given twice a day
with the quinin.
The foregoing treatment is also applicable when the electrical shock is
given by telephone, electric car, or electric-light wires, etc. The wounds,
burns, or blisters should be treated according to the antiseptic method of
treating wounds.
TUMORS IN THE BRAIN, ETC.
Tumors of different kinds have been found within the cranial cavity, and in
many cases there have been no well-marked symptoms exhibited during the
life of the animal to lead one to suspect their existence. Cases are
recorded where bony tumors have been found in the brain of cattle that died
suddenly, but during life no signs of disease were manifested. Post-mortem
examinations have disclosed tubercles in the membranes of the brain. (See
"Tuberculosis," p. 407.) Abscesses, usually the result of inflammation of
the brain, have been found post-mortem. For the description of
hydrocephalus, or dropsy of the brain, of calves the reader is referred to
the section on parturition. (See "Water in the head," p. 179.)
Chorea, constant twitching and irregular spasmodic movements of the
muscles, has been noticed in connection with or as a sequel to other
affections, as, for example, parturient apoplexy.
Various diseases, the description of which will be found in other sections
of this work, affect the nervous system to a greater or less extent--for
example, ergotism, lead poisoning, uremia, parturient apoplexy, colic, and
other affections associated with cramps, or spasms, etc. Disease of the
ovaries or of the spinal cord, by reflex irritation, may cause estromania
(see "Excess of venereal desire," p. 148, constant desire for the bull).
DISEASES OF THE URINARY ORGANS.
By JAMES LAW, F. R. C. V. S.,
_Formerly Professor of Veterinary Science, etc., in Cornell University._
Of the materials that have served their purpose in building up the animal
body or in sustaining the body temperature, and that are now to be thrown
out as waste, the greater part is expelled from the system through the
lungs and the kidneys, but the agents that pass out by either of these two
channels differ in the main from those passing by the other. Thus from the
lungs in the form of dioxid of carbon--the same gas that comes from burning
of coal or oil--there escapes most of the waste material resulting from the
destruction in the system of fats, sugars, starch, and such other foods as
are wanting in the element nitrogen, and do not form fibrous tissues, but
go mainly to support animal heat or maintain functional activity. From the
kidneys, on the other hand, are thrown out the waste products resulting
from the destruction of the foods and tissues containing nitrogen--of, for
instance, albumin, fibrin, gluten, casein, gelatin, woody tissue, etc.
While much of the waste material containing nitrogen leaves the body by the
bowels, this is virtually only such of the albuminoid food as has failed to
be fully digested and absorbed; this has never formed a true constituent
part of the body itself or of the blood, but is so much waste food, like
that which has come to the table and again carried away unused. If the
albuminoid food element has entered the blood, whether or not it has been
built up into a constituent part of the structure of the body, its waste
products, which contain nitrogen, are in the main expelled through the
kidneys, so that the latter become the principal channels for the expulsion
of all nitrogen-containing waste.
It would be an error, however, to infer that all nitrogenous food, when
once digested and absorbed into the blood, must necessarily leave the
system in the urine. On the contrary, in the young and growing animal, all
increase of the fibrous structures of the body is gained through the
building up of those flesh-forming constituents into their substance; in
the pregnant animal the growth of the offspring and its envelopes has a
similar origin, and in the dairy cow the casein or curd of the milk is a
means of constant elimination of these nitrogen-containing agents. Thus, in
the breeding cow and, above all, in the milking cow, the womb or udder
carries on a work in one sense equivalent to that otherwise performed by
the kidneys. Not only are these organs alike channels for the excretion of
albuminous products, but they are also related to each other structurally
and by nervous sympathy, so that suffering in the one is liable to induce
some measure of disorder in the other.
As in the case of other mammals, this nitrogenous waste matter is mainly
present in the urine of cattle in the form of urea, but also, to some
extent, as hippuric acid, a derivative of vegetable food which, in the
herbivora, replaces the uric acid found in the urine of man and carnivora.
Uric acid is, however, found in the urine of sucking calves which have
practically an animal diet, and it may also appear in the adult in case of
absolute, prolonged starvation, and in diseases attended with complete loss
of appetite and rapid wasting of the body. In such cases the animal lives
on its own substance, and the product is that of the wasting flesh.
The other products containing nitrogen are present in only small quantities
and need not be specially referred to. The urine of cattle contains much
less of carbonates than that of the horse, and effervesces less on the
addition of an acid. As the carbonates form a large proportion of the solid
deposits (gravel, stone) from the horse's urine, the ox may thus be held
less liable, yet even in the ox the carbonates become abundant or scanty,
according to the nature of the feed, and therefore gravel, formed by
carbonate of lime, is not infrequent in cattle. When fed on beets, clover
hay, or bean straw carbonates are present in large quantities, these
aliments being rich in organic acids and alkaline carbonates; whereas upon
oat straw, barley straw, and, above all, wheat straw, they are in small
amount. In calves fed on milk alone no carbonates are found in the urine.
Phosphates, usually in combination with lime, are, as a rule, present only
in traces in the urine of cattle; however, on a dietary of wheat, bran, or
other aliment rich in phosphates, these may be present in large amount, so
that they render the liquid cloudy or are deposited in solid crystals. The
liquid is rendered transparent by nitric acid.
The cow's urine, on a diet of hay and potatoes, contained:
Parts.
Urea 18.5
Potassic hippurate 16.5
Alkaline lactates 17.2
Potassium bicarbonate 16.1
Magnesium carbonate 4.7
Lime carbonate 0.6
Potassium sulphate 3.6
Common salt 1.5
Silica Trace
Phosphates 0.0
Water and undetermined substances 921.3
_______
Total 1,000.0
The following table after Tereg[1] gives the different conditions of the
urine, and especially the amount of urea and hippuric acid under different
rations. The subjects were two oxen, weighing, respectively, 1,260 pounds
and 1,060 pounds:
--------------+------+-----+-----+-----+-----+-----+------+-----+-----+----
Food per day.|Water.
(pounds) | |Urine
| |Passed.
| | |Density.
| | | |Solids
| | | |in urine.
| | | | |Hippuric
| | | | |acid.
| | | | | |Urea.
| | | | | | |Nitrogen
| | | | | | |in hippuric
| | | | | | |acid and
| | | | | | |urea.
| | | | | | | |Total
| | | | | | | |nitrogen.
| | | | | | | | |Urea
| | | | | | | | |per day.
| | | | | | | | | |Hip-
| | | | | | | | | |puric
| | | | | | | | | |acid
| | | | | | | | | |per
| | | | | | | | | |week
--------------+------+-----+-----+-----+-----+-----+-----+-----+-----+-----
|_Lbs._|_Lbs_| |_Pct_|_Pct_|_Pct_|_Pct_|_Pct_|_Ozs_|_Ozs_
16.90 wheat | | | | | | | | | |
straw, and | 46.46| 7.40|1,036| 8.41| 2.66| 1.33| 0.83| 0.94| 1.63|3.23
1.30 bean | | | | | | | | | |
meal | | | | | | | | | |
| | | | | | | | | |
14.70 oat | | | | | | | | | |
straw, and | 61.10|15.26|1,039| 6.93| 2.09| 0.84| 0.55| 0.49| 2.2 |5.3
2.30 bean | | | | | | | | | |
meal | | | | | | | | | |
| | | | | | | | | |
10.4 wheat | | | | | | | | | |
straw, 10.4 | 71.76|12.36|1,043| 8.05| 0.95| 1.85| 0.93| 0.94| 3.83|1.96
clover hay, | | | | | | | | | |
0.6 bean | | | | | | | | | |
meal, and | | | | | | | | | |
2.6 starch | | | | | | | | | |
| | | | | | | | | |
10.4 wheat | | | | | | | | | |
straw, 10.4 | 80.54|12.46|1,044| 8.29| 8.07| 2.41| 1.19| 1.11| 5.8 |2.1
clover hay, | | | | | | | | | |
2.7 bean | | | | | | | | | |
meal, 1.4 | | | | | | | | | |
starch, and | | | | | | | | | |
0.8 sugar | | | | | | | | | |
| | | | | | | | | |
10.4 wheat | | | | | | | | | |
straw, 10.4 | 78.96|17.62|1,043| 8.41| 0.74| 3.12| 1.45| 1.24| 9.17|2.17
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