Identifier: transactionsproc45192roya (find matches)
Title: Transactions and proceedings of the Royal Society of South Australia (Incorporated)
Year: 1912 (1910s)
Authors: Royal Society of South Australia
Subjects: Science
Publisher: Adelaide : W.C. Rigby
Contributing Library: Smithsonian Institution Libraries
Digitizing Sponsor: Biodiversity Heritage Library

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at the stifle joint are also at times infected. Though afibrosis is set up as a result of the presence of the parasite,yet the lesions are usually not extensive and do not assumethe nodular form, so typical of 0. gibsoni and 0. indica.The worms occur more or less tangled lying in a fibroustunnel, and considerable lengths of the female may be ex-tracted from the surrounding fibrosed tissue before breakingtakes place. Males lie loosely coiled or tangled in spacesadjacent to the females, or at a little distance, and canreadily be obtained entire. Disintegrating worms under-going calcification may be met with. The writer has been informed that the parasite may befound in a very large percentage of cattle slaughtered at theAbattoirs in Brisbane and Rockhampton, so that it is,probably, very widely distributed in Queensland. Itoccurs, not uncommonly, in cattle slaughtered in Sydney.Mr. N. V. Brown, to whom I am indebted for specimens andinformation, informed me that he had not observed it in
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233 cattle killed in the Melbourne Abattoirs. Piettre (1912)recorded the presence of 0. bovis in 26 out of 30 cattleexamined in France, and in the cervical region of 65 percent, to 70 per cent, of Argentine animals and of 90 nercent, of Uruguayan cattle killed at the meat preserving worksin those two countries (Piettre, 1916; Joan, 1917V Emery(in Neumann, 1910, p. 270) reported that 0. gutturosa wasto be found in the connective tissue of the neck ligament,principally on the inner face, and especially at the level ofthe second and third dorsal vertebrae in Algeria and Tunis,where, he states, nearly all adult bovines harbour theparasite. It is worthy of note that Piettre (1912) failed tofind 0. bovis in the cervical ligament of French cattle,though he recorded it from the stifle joint and from thetibio-tarsal ligament. We have not been able to determine the length of thefemale worm. Joan (1917, p. 448) gives it as being over60 centimetres in Argentine specimens. Piettre found thatin Fre

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