Sheep, Swine, and Poultry Part 11

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BLEEDING.

Bleeding from the ears or tail, as is commonly practised, rarely extracts a quant.i.ty of blood sufficient to do any good where bleeding is indicated. To bleed from the eye-vein, the point of a knife is usually inserted near the lower extremity of the pouch below the eye, pressed down, and then a cut made inward toward the middle of the face.

Bleeding from the angular or cheek-vein is recommended, in the lower part of the cheek, at the spot where the root of the fourth tooth is placed, which is the thickest part of the cheek, and is marked on the external surface of the bone of the upper jaw by a tubercle, sufficiently prominent to be very sensible to the finger when the skin of the cheek is touched. This tubercle is a certain index to the angular vein, which is placed below. The shepherd takes the sheep between his legs; his left hand more advanced than his right, which he places under the head, and grasps the under jaw near to the hinder extremity, in order to press the angular vein, which pa.s.ses in that place, for the purpose of making it swell; he touches the right cheek at the spot nearly equidistant from the eye and mouth, and there finds the tubercle which is to guide him, and also feels the angular vein swelled below this tubercle; he then makes the incision from below upward, half a finger's breadth below the middle of the tubercle. When the vein is no longer pressed upon, the bleeding will commonly cease; if not, a pin may be pa.s.sed through the lips of the orifice, and a lock of wool tied round them.

For thorough bleeding, the jugular vein is generally to be preferred.

The sheep should be firmly held by the head by an a.s.sistant, and the body confined between his knees, with its rump against a wall. Some of the wool is then cut away from the middle of the neck over the jugular vein, and a ligature, brought in contact with the neck by opening the wool, is tied around it below the shorn spot near the shoulder. The vein will soon rise. The orifice may be secured, after bleeding, as before described.

The good effects of bleeding depend almost as much on the _rapidity_ with which the blood is abstracted, as the _amount_ taken. This is especially true in acute diseases. _Either bleed rapidly or do not bleed at all._ The orifice in the vein, therefore, should be of some length, and made lengthwise with the vein. A lancet is by far the best implement; and even a short-pointed penknife is preferable to the bungling gleam. Bleeding, moreover, should always be resorted to, when it is indicated at all, as nearly as possible to the _commencement_ of the malady.

The amount of blood drawn should never be determined by admeasurement, but by const.i.tutional effect--the lowering of the pulse, and indications of weakness. In urgent cases--apoplexy, or cerebral inflammation, for example--it would be proper to bleed until the sheep staggers or falls.

The quant.i.ty of blood in the sheep is less, in comparison, than that in the horse or ox. The blood of the horse const.i.tutes about one-eighteenth part of his weight; and that of the ox at least one-twentieth; while that of the sheep, in ordinary condition, is one-twenty-second. For this reason, more caution should be exercised in bleeding the latter, especially in frequently resorting to it; otherwise, the vital powers will be rapidly and fatally prostrated. Many a sheep has been destroyed by bleeding freely in disorders not requiring it, and in disorders which did require it at the commencement, but of which the inflammatory stage had pa.s.sed.

FEELING THE PULSE.

The number of pulsations can be determined by feeling the heart beat on the left side. The femoral artery pa.s.ses in an oblique direction across the inside of the thigh, and about the middle of the thigh its pulsations and the character of the pulse can be most readily noted. The pulsations per minute, in a healthy adult sheep, are sixty-five in number; though they have been stated at seventy, and even seventy-five.

APOPLEXY.

Soon after the sheep are turned to gra.s.s in the spring, one of the best-conditioned sheep in the flock is sometimes suddenly found dead.

The symptoms which precede the catastrophe are occasionally noted. The sheep leaps frantically into the air two or three times, dashes itself on the ground, and suddenly rises, and dies in a few minutes.

Where animals in somewhat poor condition are rather forced forward for the purpose of raising their condition, it sometimes happens that they become suddenly blind and motionless; they will not follow their companions; when approached, they run about, knocking their heads against fences, etc.; the head is drawn round toward one side; they fall, grind their teeth, and their mouths are covered with a frothy mucus. Such cases are, unquestionably, referable to a determination of blood to the brain.

_Treatment._ If the eyes are prominent and fixed, the membranes of the mouth and nose highly florid, the nostrils highly dilated, and the respiration labored and stertorous, the veins of the head turgid, the pulse strong and rather slow, and these symptoms attended by a partial or entire loss of sight and hearing, it is one of those decided cases of apoplexy which require immediate and energetic treatment. Recourse should at once be had to the jugular vein, and the animal bled until an obvious const.i.tutional effect is produced--the pulse lowered, and the rigidity of the muscles relaxed. An aperient should at once follow bleeding; and if the animal is strong and plathoric, a sheep of the size of the Merino would require at least two ounces of Epsom salts, and one of the large mutton sheep, more. If this should fail to open the bowels, half an ounce of the salts should be given, say twice a day.

BRAXY.

This is manifested by uneasiness; loathing of food; frequent drinking; carrying the head down; drawing the back up; swollen belly; feverish symptoms; and avoidance of the flock. It appears mostly in late autumn and spring, and may be induced by exposure to severe storms, plunging in water when hot, and especially by constipation, brought on by feeding on frostbitten, putrid, or indigestible herbage. Many sheep die on the prairies from this disease, induced by exposure and miserable forage.

Entire prevention is secured by warm, dry shelters, and nutritious, dry food.

_Treatment._ Remedies, to be successful, must be promptly applied. Bleed freely; and to effect this, immersion in a tub of hot water may be necessary, in consequence of the stagnant state of the blood. Then give two ounces of Epsom salts, dissolved in warm water, with a handful of common salt. If this is unsuccessful, give a clyster, made with a pipeful of tobacco, boiled for a few minutes in a pint of water.

Administer half; and if this is not effectual, follow with the remainder. Then bed the animal in dry straw, and cover with blankets; a.s.sisting the purgatives with warm gruels, followed by laxative provender till well.

BRONCHITIS.

Where sheep are subject to pneumonia, they are liable to bronchitis as well, which is an inflammation of the mucous membrane, which lines the bronchial tubes, or the air-pa.s.sages of the lungs. The _symptoms_ are those of an ordinary cold, but attended with more fever, and a tenderness of the throat and belly when pressed upon.

_Treatment._ Administer salt in doses of from one and a half to two ounces, with six or eight ounces of lime-water, given in some other part of the day.

CATARRH.

This is an inflammation of the mucous membrane, which lines the nasal pa.s.sages, and it sometimes extends to the larynx and pharynx. In the first instance--where the lining of the nasal pa.s.sages is alone and not very violently affected--it is merely accompanied by an increased discharge of mucus, and is rarely attended with much danger. In this form, it is usually termed _snuffles_; and high-bred English mutton-sheep, in this country, are apt to manifest more or less of it, after every sudden change of weather. When the inflammation extends to the mucous lining of the larynx and the pharynx, some degree of fever usually supervenes, accompanied by cough, and some loss of appet.i.te. At this point, bleeding and purging are serviceable.

Catarrh rarely attacks the American fine-woolled sheep with sufficient violence in summer to require the application of remedies. Depletion, in catarrh, in our severe winter months, however, rapidly produces that fatal prostration, from which it is almost impossible to bring the sheep back, without bestowing an amount of time and care upon it, costing far more than the worth of an ordinary animal.

The best course is to _prevent_ the disease by judicious precaution.

With that amount of attention which every prudent farmer should bestow on his sheep, the American Merino is but little subject to it. Good, comfortable, and well-ventilated shelters, constantly accessible to the sheep in winter, with a sufficiency of food regularly administered, are usually a sufficient safeguard.

MALIGNANT EPIZOoTIC CATARRH.

[Ill.u.s.tration: AN ENGLISH RACK FOR FEEDING SHEEP.]

Essentially differing, in type and virulence, from the preceding, is an epidemic, or, more properly speaking, an epizootic malady, which, as often as once in every eight or ten years, sweeps over extended sections of the Northern States, destroying more sheep than all other diseases combined. It commonly makes its appearance in winters characterized by rapid and violent changes of temperature, which are spoken of by the farmers as "bad winters" for sheep. The disease is sometimes termed the "distemper," and also, but erroneously, "grub in the head." The winter of 1846-7 proved peculiarly destructive to sheep in New York, and some of the adjoining States; some owners losing one-half, others three-quarters, and a few seven-eighths, of their flocks. One person lost five hundred out of eight hundred; another, nine hundred out of a thousand. These severe losses, however, mainly fell on the holders of the delicate Saxons, and perhaps, generally, on those possessing not the best accommodations, or the greatest degree of energy and skill.

_Symptoms._ The primary and main disease, in such instances, is a species of catarrh; differing, however, from ordinary catarrh in its diagnosis, and in the extent of the lesions accompanying both the primary and the symptomatic diseases. The animals affected do not, necessarily, at first show any signs of violent colds, as coughing, sneezing, or labored respiration; the only indications of catarrh noticed, oftentimes, being a nasal discharge. Animals having this discharge appear dull and drooping; their eyes run a little, and are partially closed; the caruncle and lids look pale; their movements are languid, and there is an indisposition to eat; the pulse is nearly natural, though at times somewhat too languid. In a few days these symptoms are evidently aggravated; there is rapid emaciation, accompanied with debility; the countenance is exceedingly dull and drooping; the eye is kept more than half closed; the caruncle, lids, etc., are almost bloodless; a gummy, yellow secretion about the eye; thick, glutinous mucus adhering in and about the nostrils; appet.i.te feeble; pulse languid; and muscular energy greatly prostrated. They rapidly grow weaker, stumble, and fall as they walk, and soon become unable to rise; the appet.i.te grows feebler; the mucus at the nose is, in some instances, tinged with dark, grumous blood; the respiration becomes oppressed; and the animals die within a day or two after they become unable to rise. Upon a _post-mortem_ examination, the mucous membrane lining the whole nasal cavity is found highly congested and thickened throughout its entire extent, accompanied with the most intense inflammation; slight ulcers are found on the membranous lining, at the junction of the cellular ethmoid bones with the cribriform plate, in the ethmoidal cells; and the inflammation extends to the mucous membrane of the pharynx, and some inches, from two to four, of the upper portion of the [oe]sophagus.

No sheep, affected with this disease, recovers after emaciation and debility have proceeded to any great extent. In the generality of instances, the time, from the first observed symptoms until death, varies from ten to fifteen days; although death, in some cases, results more speedily.

_Treatment._ Nothing has been found so serviceable as mercury, which, from its action on the entire secretory system, powerfully tends to relieve the congested membranes of the head. Dissolve one grain of bi-chloride of mercury--corrosive sublimate--in two ounces of water; and give one-half ounce of the water, or one-eighth of a grain of corrosive sublimate, daily, in two doses. To stimulate and open the bowels, give, also, rhubarb in a decoction, the equivalent of ten or fifteen grains at a dose, accompanied with the ordinary carminative and stomachic adjuvants, ginger and gentian in infusion.

COLIC.

Sheep are occasionally seen, particularly in the winter, lying down and rising every moment or two, and constantly stretching their fore and hind legs so far apart that their bellies almost touch the ground. They appear to be in much pain, refuse all food, and not unfrequently die, unless relieved. This disease, popularly known as the "stretches," is erroneously attributed to an involution of the part of the intestine within another; it being, in reality, a species of flatulent colic, induced by costiveness.

_Treatment._ Half an ounce of Epsom salts, a drachm of Jamaica ginger, and sixty drops of essence of peppermint. The salts alone, however, will effect the cure; as will, also, an equivalent dose of linseed oil, or even hog's lard.

COSTIVENESS.

This difficulty is removed by giving two table-spoonfuls of castor oil every twelve hours, till the trouble ceases; or give one ounce of Epsom salts. This may be a.s.sisted by an injection of warm weak suds and mola.s.ses.

DIARRH[OE]A.

Common diarrh[oe]a--purging, or scours--manifests itself simply by the copiousness and fluidity of the alvine evacuations. It is generally owing to improper food, as bad hay, or noxious weeds; to a sudden change, as from dry food to fresh gra.s.s; to an excess, as from overloading the stomach; and sometimes to cold and wet. It is important to clearly distinguish this disease from dysentery. In diarrh[oe]a, there is no apparent general fever; the appet.i.te remains good; the stools are thin and watery, but unaccompanied with slime, or mucus, and blood; odor of the faeces is far less offensive than in dysentery; and the general condition of the animal is but little changed. When it is light, and not of long continuance, no remedy is called for, since it is a healthful provision of Nature for the more rapid expulsion of some offending matter in the system, which, if retained, might lead to disease.

_Treatment._ Confinement to dry food for a day or two, and a gradual return to it, often suffices, in the case of grown sheep. With lambs, especially if attacked in the fall, the disease is more serious. If the purging is severe, and especially if any mucus is observed with the faeces, the feculent matter should be removed from the bowels by a gentle cathartic; half a drachm of rhubarb, or an ounce of linseed oil, or half an ounce of Epsom salts to a lamb. This should be followed by an astringent; and, in nine cases out of ten, the latter will serve in the first instance. Give one quarter of an ounce of prepared chalk in half a pint of tepid milk, once a day for two or three days; at the end of which, and frequently after the first dose, the purging will have ordinarily abated, or entirely ceased.

"Sheep's cordial" is also a safe and excellent remedy--in severe cases, better than simple chalk and milk. Take of prepared chalk, one ounce; powdered catechu, half an ounce; powdered Jamaica ginger, two drachms; and powdered opium, half a drachm; mix with half a pint of peppermint water; give two or three table-spoonfuls morning and night to a grown sheep, and half that quant.i.ty to a lamb.

DISEASE OF THE BIFLEX Ca.n.a.l.

From the introduction of foreign bodies into the biflex ca.n.a.l, or from other causes, it occasionally becomes the seat of inflammation.

This ca.n.a.l is a small orifice, opening externally on the point of each pastern, immediately above the cleft between the toes. It bifurcates within, a tube pa.s.sing down on each side of the inner face of the pastern, winding round and ending in a _cul de sac_. Inflammation of this ca.n.a.l causes an enlargement and redness of the pastern, particularly about the external orifice of the ca.n.a.l. The toes are thrown wide apart by the tumor. It rarely attacks more than one foot, and should not be allowed to proceed to the point of ulceration which it will do, if neglected. There is none of that soreness and disorganization between the back part of the toes, and none of that peculiar fetor which distinguishes the hoof-ail, with which disease it is sometimes confounded.

_Treatment._ Scarify the coronet, making one or two deeper incisions in the princ.i.p.al swelling around the mouth of the ca.n.a.l; and cover the foot with tar.

DYSENTERY.

Sheep, Swine, and Poultry Part 11

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