Le malattie dei suini, con riferimento particluar a hog-colera . e poi thoroughlydouche la carcassa e il terreno sottostante e circostante con thesolution. Un secondo secchio della soluzione dovrebbe essere fornito per washingknives e altri strumenti utilizzati per l'esame. Con la carcassa sulla sua schiena, esame deve prima essere madeof l'aspetto esterno della pelle, specialmente nell'axillaryregion appena dentro le gambe anteriori, nei fianchi, attorno alle orecchie,sul muso e le palpebre, per la comparsa di arrossamento theskin, che è un comune di trovare in questa malattia. Le lesioni SKINAs appena stat

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Diseases of swine, with particluar reference to hog-cholera . and then thoroughlydouche the carcass and the ground beneath and around with thesolution. A second pail of solution should be provided for washingknives and other instruments used in the examination. With the carcass on its back, examination should first be madeof the external appearance of the skin, especially in the axillaryregion just inside the front legs, in the flanks, around the ears, on the snout and eyelids, for the appearance of reddening of theskin, which is a common finding in this disease. LESIONS IN THE SKINAs just stated, the lesions found in the skin consist of a redden-ing, which may be due to a simple dilatation of the blood-vessels(hyperemia), or there may be genuine hemorrhages into the skin, J LESIONS IN THE SKIN 127 with the formation of permanent discolorations. If these hemor-rhagic spots are very small and pin-point in appearance they areclassed as petechial hemorrhages. The large red blotches com-monly seen in severe cases are known as ecchymotic hemorrhages.. ^ * .J Fig. 4o.—Sivcrc congostioii anil In iiinnli mi - b. n.(H. K. Mullord Co ). t ho bkin in hog cholera Distinction can be made between the redness due to simpledilatation of the blood-vessels (or hyperemia, as it is pathologicallyknown) and that due to hemorrhage by simply pressing upon thereddened areas. If the reddening is due to hyperemia the blood 128 DISEASES OF SWINE is forced out of the vessels by pressure and the redness disappears.In those cases in which there is a genuine hemorrhage, with escapeof the blood from the vessels due to their rupture, pressure doesnot remove the blood, and hence the redness does not disappear onpressure. In these cases, if we were to examine the tissues from the skinunder the microscope we would find in the one class of cases—those due to hyperemia—that there was simply a marked dilata-tion and enlargement of the blood-vessels, which are filled with largeamounts of blood. There

Parole chiave associate all'immagine

• bookcentury1900
• bookdecade1910
• bookpublisherphila
• bookyear1914