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A Dentigerous Cyst
90
lite Veterinary
7 ounzai .
and when empty 24 lb. It resembled a stomach in a ppearance, with walls varying from I -! to 2 in. in thickness , and was filled with a stinking coffee-coloured fluid containing small q uantities of the finer pieces of ingesta . There was a mouth with puckerings of the lining, not unlike those of the cesophag us where it enters the stomach , communicating directly with the small intestine close to the ce£cum . It meas ured 2 ft. I in. in length by 20 in. from the fop to the base.
A DENTIGERO U S CYST . RY REGINA LD OVER , M . R. C. V. S. , R UGB Y .
TH E subj ec t of this abnormality was a ve ry good yearling shire colt. The owner wished to hav e him castra ted because he had an enlargement under the ri g ht ear, with a sinu s di scharging a milky-
A Dentigerous Cyst.
c oloured, v iscid material, which had been noticed a few months and was gradually increasing in size. I diagonised it as a dental cyst, and persuaded the owner to leave the anim al "entire,'' and to have the
Wire' Worm in Sheep and Goats.
91
cyst operated on. The colt was accordingly cast and chloroformed, and a big incision made over the tumour ; the skin was well dissected back and with a small saw the bony cyst was removed containing two molar teeth. The edges of the wound were brought together and the colt made an uninterrupted recovery. The accompanying photograph was taken a few days after the operation, and while there was still a little swelling. This gradually disappeared and only a small scar was left, which was practically invisible unless specially looked for. The colt was afterwards sold at a high price to be sent abroad.
Bbatracts anl) 'Reports. WIRE-WORM (STRONGYLUS CONTORTUS)-THE STOMACH WORM OF SHEEP AND GOATS. 1 BY R. W. DIXON, M.R.C. V,S,
THIS parasite, which is so prevalent amongst sheep and goats in this Colony, has, this last sumrrier, caused great mortality amongst sheep in the Eastern Province. Con·s equently, I have thought that it might serve some useful purpose to the stock farmers of this country if a short, concise article dealing· with the symptoms, life history, and treatment for this pest be published. I do not pretend to advance anything new regarding the treatment for stomach worm's, but I shall endeavour to explain the · treatment which has been found most effective in this Colony, also other remedies which qaye been used in other countries with more or less success. In a circular issl,led by the Bureau of Animal Industry (United States of America), appears an excellent article on "Stomach Worms in Sheep," written by B. H. Ransom, Chief of the Division of Zoology, and in that article is given a very interesting life history of the stomach worm, which I shall take the liberty to quote extensively. · · The wire-worm infests the fourth stomach of sheep aud goats prin cipally, but may be found also iri cattle and various wild ruminants, and, amongst small stock, causes at times more losses.than -any other of the internal parasites of farm animals. More especially lambs and young sheep are seriously affected, but often fully-grown sheep, although badly infested, providing the veld is in good order, may show no apparent symptoms of disease. Symptoms.- The general symptom is a perniciousanremia shown by loss of flesh, weakness, debility, thirst, and diarrhcea. The mucous membranes of the eyes and mouth are pale and bloodless, and in che ad vanced stages a dropsical effusion appears under the skin of the lower jaw. A post-mortem examination will reveal the presence of the parasites wriggling about in the fluid contents of the fourth stomach, about It to If in . long, and about as thick as an ordinary pin. Its distinguishing name, Contortus, is given to it because it has a 1
A bstract from the .-lgrimltural Journal of the Cape of Good Hope.
lite Veterinary
7 ounzai .
and when empty 24 lb. It resembled a stomach in a ppearance, with walls varying from I -! to 2 in. in thickness , and was filled with a stinking coffee-coloured fluid containing small q uantities of the finer pieces of ingesta . There was a mouth with puckerings of the lining, not unlike those of the cesophag us where it enters the stomach , communicating directly with the small intestine close to the ce£cum . It meas ured 2 ft. I in. in length by 20 in. from the fop to the base.
A DENTIGERO U S CYST . RY REGINA LD OVER , M . R. C. V. S. , R UGB Y .
TH E subj ec t of this abnormality was a ve ry good yearling shire colt. The owner wished to hav e him castra ted because he had an enlargement under the ri g ht ear, with a sinu s di scharging a milky-
A Dentigerous Cyst.
c oloured, v iscid material, which had been noticed a few months and was gradually increasing in size. I diagonised it as a dental cyst, and persuaded the owner to leave the anim al "entire,'' and to have the
Wire' Worm in Sheep and Goats.
91
cyst operated on. The colt was accordingly cast and chloroformed, and a big incision made over the tumour ; the skin was well dissected back and with a small saw the bony cyst was removed containing two molar teeth. The edges of the wound were brought together and the colt made an uninterrupted recovery. The accompanying photograph was taken a few days after the operation, and while there was still a little swelling. This gradually disappeared and only a small scar was left, which was practically invisible unless specially looked for. The colt was afterwards sold at a high price to be sent abroad.
Bbatracts anl) 'Reports. WIRE-WORM (STRONGYLUS CONTORTUS)-THE STOMACH WORM OF SHEEP AND GOATS. 1 BY R. W. DIXON, M.R.C. V,S,
THIS parasite, which is so prevalent amongst sheep and goats in this Colony, has, this last sumrrier, caused great mortality amongst sheep in the Eastern Province. Con·s equently, I have thought that it might serve some useful purpose to the stock farmers of this country if a short, concise article dealing· with the symptoms, life history, and treatment for this pest be published. I do not pretend to advance anything new regarding the treatment for stomach worm's, but I shall endeavour to explain the · treatment which has been found most effective in this Colony, also other remedies which qaye been used in other countries with more or less success. In a circular issl,led by the Bureau of Animal Industry (United States of America), appears an excellent article on "Stomach Worms in Sheep," written by B. H. Ransom, Chief of the Division of Zoology, and in that article is given a very interesting life history of the stomach worm, which I shall take the liberty to quote extensively. · · The wire-worm infests the fourth stomach of sheep aud goats prin cipally, but may be found also iri cattle and various wild ruminants, and, amongst small stock, causes at times more losses.than -any other of the internal parasites of farm animals. More especially lambs and young sheep are seriously affected, but often fully-grown sheep, although badly infested, providing the veld is in good order, may show no apparent symptoms of disease. Symptoms.- The general symptom is a perniciousanremia shown by loss of flesh, weakness, debility, thirst, and diarrhcea. The mucous membranes of the eyes and mouth are pale and bloodless, and in che ad vanced stages a dropsical effusion appears under the skin of the lower jaw. A post-mortem examination will reveal the presence of the parasites wriggling about in the fluid contents of the fourth stomach, about It to If in . long, and about as thick as an ordinary pin. Its distinguishing name, Contortus, is given to it because it has a 1
A bstract from the .-lgrimltural Journal of the Cape of Good Hope.