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VetMed Resource

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

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Abstract

An experiment was conducted to determine if the digestion method described by Herlich [V.B. 26, 3857] for the post-mortem recovery of nematodes from the wall of the digestive tract of ruminants would give accurate results when applied to (1) an organ that had been quick-frozen for a week or less,...

Author(s)
CIORDIA, H.; VEGORS, H. H.; BIZZELL, W. E.
Citation
Journal of Parasitology, 1957, 43, pp 532-534
Abstract

Escherichia coli tagged with radiophosphorus was incorporated with faecal cultures containing eggs of Cooperia oncophora, Ostertagia ostertagi, and Trichostrongylus axei. The resulting infective larvae from such cultures did not exhibit any radioactivity, although it was expected that the...

Author(s)
CIORDIA, H.; BIZZELL, W. E.
Citation
Journal of Parasitology, 1958, 44, 4; Sect. 2, pp 25 p
Abstract

Doses of up to 90, 000 r failed to inhibit the motility of the infective larvae maintained in tap water at room temperature for 28 days.
Irradiation of about 5, 000 r apparently stimulated the infective power of the larvae without noticeable increase in their pathogenicity.
Above 10, 000 r, fewer...

Author(s)
Ciordia, H.; Bizzell, W. E.
Citation
Experimental Parasitology, 1960, 9, pp 37-41
Abstract

Experiments were conducted with calves during 3 grazing seasons on 4 different pastures: a temporary pasture (prepared each autumn), rye grass, an established fescue and a renovated (previously seeded with grass and crimson clover) fescue pasture. Cattle on the renovated pasture had the least...

Author(s)
Ciordia, H.; Bizzell, W. E.; Baird, D. M.; Mccampbell, H. C.; Vegors, H. H.; Sell, O. E.
Citation
American Journal of Veterinary Research, 1962, 23, pp 1001-1006
Abstract

The eggs and larvae of Cooperia punctata, C. oncophora, Ostertagia osíertagi, Trichosirongylus axei, and T. colubriformis showed a similar rate of development in faecal cultures at various constant temperatures. In general, the rate of development for the five species accelerated as the temperature ...

Author(s)
Ciordia, H.; Bizzell, W. E.
Citation
Journal of Parasitology, 1963, 49, pp 60-63
Abstract

The antioxidant ethoxyquin used in commercial animal feeds had an inhibitory effect on larval nematode development. Increasingly fewer larvae were recovered from faecal cultures as the quantity of ethoxyquin fed to infected calves, or mixed with faeces from infected calves, was increased from the...

Author(s)
Ciordia, H.; Porter, D. A.; Bizzell, W. E.
Publisher
Regional Anim. Dis. Res. Lab., ARS, Experiment, Georgia 30212,
Citation
Journal of Parasitology, 1967, 53, pp 782-785
Abstract

Anthelmintic activities of the laevo isomer of tetramisole were tested under field conditions in 31 cattle given the drug in two forms: drench (8mg/kg body wt.) and bolus (5.4 mg/kg). These were 94-100% effective against adult Haemonchus placei. Coopería spp. Trichostrongylus colubriformis,...

Author(s)
Ciordia, H.; Baird, D. M.
Citation
American Journal of Veterinary Research, 1969, 30, pp 114-1148
Abstract

Four dosages of cambendazole were tested under field conditions. Twenty-five calves of 245 kg body wt were randomly divided into 5 groups of 5 each. Group I served as non-medicated controls. Other groups were drenched with 15, 20, 25, or 40 mg/kg body weight. Treatment was 91-100% effective against ...

Author(s)
Ciordia, H.; Mccampbell, H. C.
Publisher
Wash,
Citation
Proceedings of the Helminthological Society of Washington, 1971, 38, pp 40-42
Abstract

In three experiments, naturally infected steers of beef breeds and crosses representative of the region of Georgia were given 8 mg/kg doses of levamisole. There were no signs of intoxication. In experiments 1 and 2, the dose was given by drenching. Faecal egg counts tended to decrease in both...

Author(s)
Ciordia, H.; Mccampbell, H. C.
Citation
American Journal of Veterinary Research, 1971, 32, pp 545-550
Abstract

Coumaphos premix was incorporated in a complete ration to treat 4 calves with a daily dose of 2 mg of active material per kilogram of body weight for 6 consecutive days. Comparison of the numbers of worms recovered after slaughter of the calves with those passed in the faeces indicated that the...

Author(s)
Ciordia, H.
Citation
American Journal of Veterinary Research, 1972, 33, No.3, pp 623-626

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