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VetMed Resource

Veterinary information to support practice, based on evidence and continuing education

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Abstract

In North Otago, New Zealand, beef calves weaned at 6 months of age were given either sodium selenate (in doses of 20 mg/calf) or thiabendazole (in doses of 17 ml of Bovizole/calf) or both according to a number of alternative treatment schedules over March-September. Live weight measurements showed...

Author(s)
Davis, G. H.
Citation
New Zealand Journal of Experimental Agriculture, 1974, 2, 4, pp 393-395
Abstract

Febendazole at 8.5 to 9.3 mg/kg body-weight had no significant effect on naturally-acquired, inhibited, early-4th-stage Ostertagia ostertagi in 13- to 15-month-old steers. In 6 of the 12 animals dosed with this drug in 2 trials, total counts of O. ostertagi remaining exceeded 34,000 the highest...

Author(s)
Elliott, D. C.
Citation
New Zealand Veterinary Journal, 1977, 25, 6, pp 145-147
Abstract

The correspondent comments on the paper by Elliot, D.C. [See Hm/A 47, 225] and states that the conclusion that "Fenbendazole had no significant effect on numbers of naturally acquired inhibited early-4th-stage Ostertagia ostertagi in 13- to 15-month-old steers" is contradictory to all previous...

Author(s)
Vincent, K.
Citation
New Zealand Veterinary Journal, 1977, 25, 8, pp 226
Abstract

The correspondent replies to comments made by Vincent, K. [see abstract above] about his paper [see Hm/A 47, 225]. He emphasizes that his interpretation, arising from the method of analysis chosen, is that under the conditions of the trials, any apparent effect of fenbendazole could have been due...

Author(s)
Elliott, D. C.
Citation
New Zealand Veterinary Journal, 1977, 25, 9, pp 253
Abstract

Opinions offered at meetings between March and May 1978 by 127 veterinary practitioners indicate that cattle ostertagiasis occurs throughout New Zealand. It is seen in all age-groups regularly in some regions. Poorly fed animals are more susceptible to outbreaks accompanied by a gradual decline in...

Author(s)
Chalmers, K.
Citation
New Zealand Veterinary Journal, 1980, 28, 3, pp 27-34
Abstract

Four species of Ostertagia were identified in 6- to 12-month-old calves clinically affected by ostertagiasis in 2 outbreaks in New Zealand and in tracer calves that grazed with the 2 herds. There was no likelihood of the worms originating from sheep. O. ostertagi was the dominant species,...

Author(s)
Bisset, S. A.
Citation
New Zealand Veterinary Journal, 1980, 28, 3, pp 54
Abstract

Serum pepsinogen levels and O. ostertagi populations in clinically normal grass-fed bullocks were investigated in three groups of 10 prime cattle aged between 2.5 and 2.75 years slaughtered in late summer (February), early autumn (March) and late autumn (May) respectively. Apart from occasional...

Author(s)
Chalmers, K.
Citation
New Zealand Veterinary Journal, 1983, 31, 11, pp 189-191
Abstract

An overview of the epidemiology of gastrointestinal nematode infections in cattle in New Zealand is presented, and their control is discussed. The most important species are: Ostertagia ostertagi, Trichostrongylus axei and Cooperia oncophora. Most infections are mixed. Resistance develops after...

Author(s)
Charleston, T.
Citation
Publication - Veterinary Continuing Education, Massey University, 1994, No. 159, pp 157-174
Abstract

The main species of nematodes infecting cattle in New Zealand are: Ostertagia ostertagi, Trichostrongylus axei and Cooperia oncophora. The first is the most pathogenic species and the last is relatively non-pathogenic. The diagnosis of worm burdens which are affecting productivity but not causing...

Author(s)
Pomroy, W. E.
Citation
Publication - Veterinary Continuing Education, Massey University, 1994, No. 159, pp 175-185
Abstract

A study was conducted to determine the therapeutic efficacy of 1% doramectin injected subcutaneously at 200 µg/kg into cattle harbouring naturally acquired infections of inhibited Ostertagia ostertagi larvae. 16 yearling Friesian bulls, grazed without anthelmintic treatment throughout the...

Author(s)
Watson, T. G.; Hosking, B. C.; Hooke, F. G.
Citation
New Zealand Veterinary Journal, 1995, 43, 2, pp 64-66

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