Results 151 to 160 of about 10,812 (191)

Breeding cattle and sheep for resistance to gastrointestinal nematodes

Parasitology Today, 1992
Gastrointestinal nematodes are an important cause of reduced production of meat, milk and wool in domestic livestock. It is generally believed that problems caused by these parasites have increased owing to the intensification of animal husbandry(1-3) of resistance to anthelmintics, current research is focussed on alternative control strategies that do
Kloosterman, A., Parmentier, H.K., Ploeger, H.W.   +2 more
openaire   +3 more sources

Study of Gastrointestinal Nematodes in Sicilian Sheep and Goats

Annals of the New York Academy of Sciences, 2004
Abstract: Parasitic gastroenteritis is one of the major causes of productivity loss in sheep and goats. This report records two studies of the helminth fauna from post‐mortem examination. The first study, performed on the digestive tract of 72 sheep from a central part of Sicily in a high hill village (1,360 meters above sea level), between April 1996
A, Torina, S, Dara, A M F, Marino, O A E, Sparagano, F, Vitale, S, Reale, S, Caracappa   +6 more
openaire   +2 more sources

Detection of gastrointestinal nematodes by a coproantigen capture ELISA

Research in Veterinary Science, 1996
An assay is described for the quantitative detection of excretory/secretory antigens liberated by the intestinal nematode Heligmosomoides polygyrus and voided in the host's faeces. A rabbit polyclonal antiserum to the antigens detected them in a dose-dependent manner and was sufficiently sensitive to recognise infection in mice carrying a mean worm ...
M J, Johnson, J M, Behnke, G C, Coles
openaire   +2 more sources

Gastrointestinal Nematode Control Programs with an Emphasis on Cattle

Veterinary Clinics of North America: Food Animal Practice, 2006
Control strategies for nematode parasites rely on knowledge of the relationships between the parasites and their hosts. Specifically, these programs are based on identifying crucial points of interaction in the environment provided by the host, including genetics and the immune response, and critical periods in the physical environment in which the ...
Bert E, Stromberg, Louis C, Gasbarre
openaire   +2 more sources

Controlling gastrointestinal nematodes in cattle by Bacillus species

Veterinary Parasitology, 2017
In this study, we tested the in vitro and in vivo larvicidal activity of Bacillus species against gastrointestinal nematodes in cattle, and their viability in the presence of anthelmintics. For in vitro tests, cattle feces naturally infected with trichostrongylides were incubated with spore suspensions of Bacillus circulans (Bcir), B. thuringiensis var.
Natália Berne, Pinto, Leonardo Mortagua, de Castro, Gabriela, de Almeida Capella, Tairan Ourique, Motta, Ana Paula, de Souza Stori de Lara, Micaele Quintana, de Moura, Maria Elisabeth Aires, Berne, Fábio Pereira Leivas, Leite   +7 more
openaire   +2 more sources

Species of Gastrointestinal Nematodes of Cattle in Northern Ireland

British Veterinary Journal, 1972
SUMMARY A survey of the gastrointestinal nematodes parasitizing cattle in Northern Ireland was conducted. Twenty-three species of worm were recovered, and their role in producing parasitic disease is discussed. In addition, several species of worm normally considered to parasitize sheep were isolated and the significance of this is briefly considered.
S M, Taylor, R J, Cawthorne
openaire   +2 more sources

Evaluation of Fenbendazole as an Anthelmintic for Gastrointestinal Nematodes of Cattle

American Journal of Veterinary Research, 1978
SUMMARY Calves naturally infected with Ostertagia, Haemonchus, Trichostrongylus, and Cooperia were used in a controlled experiment to determine the anthelmintic efficacy of fenbendazole. methyl-5-(phenylthio)-2-benzimidazolecarbamate, and to compare this with the efficacy of levamisole.
T M, Craig, R R, Bell
openaire   +2 more sources

Production of vaccines against gastrointestinal nematodes of livestock

Immunology & Cell Biology, 1993
SummaryThree international collaborations involving Australian research scientists are currently developing vaccines against Haemonchus, Trichostrongylus and Ostertagia parasites using recombinant DNA technology. The variety of protective antigens identified can be classified as ‘conventional’ (stimulate naturally acquired immunity) or ‘novel/’covert‘/’
D L, Emery, S J, McClure, B M, Wagland
openaire   +2 more sources

Efficacy of moxidectin against gastrointestinal nematodes of cattle

Veterinary Record, 1992
Three groups of 11 naturally infected crossbred beef calves were injected subcutaneously with moxidectin 1 per cent injectable at 0.2 or 0.3 mg moxidectin/kg bodyweight or with the unmedicated vehicle. Nematode infections had been acquired during grazing from December to April.
J C, Williams, S A, Barras, G T, Wang
openaire   +2 more sources

The Efficacy of Cambendazole against Gastrointestinal Nematodes of Cattle

Research in Veterinary Science, 1970
Cambendazole, 5-isopropoxycarbonyl-amino-2-(4-thiazolyl)bcuzimidazole, was given at dosages of 11 to 44 mg./kg. to cattle with naturally acquired helminth infectious. A single oral dose of 22 mg./kg. was highly effective in removing mature Haemonchus, Ostertagia, Trichostrongylus, Cooperia, Strongyloides and Oesophagostomum, as well as various lumen ...
J R, Egerton, C H, Eary, G R, Lanza, T H, Wombolt, W C, Campbell   +4 more
openaire   +2 more sources