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Abstract

Investigations on nine well managed English dairy farms showed that 85.2% of 460 adult cows harboured patent nematode infections, although the worm burdens, as judged by faecal egg counts, were small. Infection took place primarily by the ingestion of grass previously contaminated either directly...

Author(s)
Fox, M. T.; Jacobs, D. E.
Citation
Veterinary Record, 1980, 107, 25/26, pp 575-578
Abstract

Before turnout on May 11th, 1979, half of 44 autumn-born calves on a farm in Kent, England, were each given an intraruminal device containing morantel tartrate whereas the other half (controls) received a non-medicated placebo. 2 days later the calves of the 2 groups were put on adjacent 4.3...

Author(s)
Jacobs, D. E.; Fox, M. T.; Walker, M. J.; Jones, R. M.; Bliss, D. H.
Citation
Veterinary Record, 1981, 108, 13, pp 274-276
Abstract

Storage of cattle faeces at room temperature resulted in a rapid decline in the numbers of Dictyocaulus viviparus larvae recoverable by the Baermann technique. Storage at 8 deg C, however, improved the recovery rate over the first 6 to 15 days and substantial recoveries were achieved after 35 to 55 ...

Author(s)
Fox, M. T.
Publisher
Martinus Nijhoff for the Commission of the European Communities., The Hague, Netherlands
Citation
Epidemiology and control of nematodiasis in cattle. An animal pathology Workshop in the CEC Programme of Coordination of Agricultural Research, Royal Veterinary and Agricultural University, Copenhagen, Denmark, 4-6 February 1980. (Current Topics in Veterinary Medicine and Animal Science Vol.9.), 1981, pp 17-20
Abstract

Preliminary results are presented from a continuing 3-year investigation of the effect of nematode infections on milk production by adult cows on 9 large dairy farms in Britain. 85.2% of 460 cows were passing nematode eggs or larvae in their faeces, thereby contaminating the pasture (the average...

Author(s)
Fox, M. T.; Jacobs, D. E.
Publisher
Martinus Nijhoff for the Commission of the European Communities., The Hague, Netherlands
Citation
Epidemiology and control of nematodiasis in cattle. An animal pathology Workshop in the CEC Programme of Coordination of Agricultural Research, Royal Veterinary and Agricultural University, Copenhagen, Denmark, 4-6 February 1980. (Current Topics in Veterinary Medicine and Animal Science Vol. 9.), 1981, pp 87-97
Abstract

In Hertfordshire, UK, 60 beef cattle (12 first-season and 48 2nd-season grazing animals) were divided into 3 groups according to age and body weight. Half of each group was given, before turnout, a morantel sustained-release bolus and the rest served as untreated controls. The groups were moved...

Author(s)
Jacobs, D. E.; Fox, M. T.; Jones, R. M.; Bliss, D. H.
Citation
Veterinary Record, 1982, 110, 17, pp 399-402
Abstract

Author(s)
Fox, M. T.
Citation
Index to Theses Accepted for Higher Degrees in the Universities of Great Britain and Ireland, 1982, 31, 2, pp 292
Abstract

Observations of feed intake, digestibility, production and selected blood values were made during the winter housing period in 10 lactating dairy cows, naturally infected with gastrointestinal roundworms, which were either left untreated or dosed on two occasions with thiabendazole in feed. While...

Author(s)
Fox, M. T.; Jacobs, D. E.; Campling, R. C.; Pocknee, B. R.; Clampitt, R.; Hart, I. C.
Citation
Veterinary Record, 1985, 116, 10, pp 257-260
Abstract

On pasture plots with a Dictyocaulus viviparus contamination rate of 41-43 larvae/kg dry matter in May of each year, clinical infection, followed by heavy pasture contamination, developed when calves were turned out on April 26th in 1982, but no signs of infection, with disappearance of larvae from ...

Author(s)
Jacobs, D. E.; Fox, M. T.
Citation
Veterinary Record, 1985, 116, 3, pp 75-76
Abstract

Adult lungworms present in calves around the sixth week after turnout play an important role in determining the subsequent pattern of disease. A trial was designed to test whether prophylactic treatment at this time would control disease in calves under British conditions. Thirty autumn-born...

Author(s)
Jacobs, D. E.; Fox, M. T.; Koyo, F. A.
Citation
Veterinary Record, 1985, 116, 18, pp 492-496
Abstract

The efficacy of a programme of strategic early season treatments with an injection of ivermectin in controlling helminth parasitism of grazing calves was studied in two separate trials. The programme of ivermectin injections administered 3 and 8, or 3, 8, and 13 weeks after turnout was assessed...

Author(s)
Ryan, W. G.; Armour, J.; Bairden, K.; Fox, M. T.; Jacobs, D. E.
Citation
Proceedings of the 14th World Congress on Diseases of Cattle, Dublin, 1986, 1, pp 185-190

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