Epidemiology and Control of Nematodiasis in Cattle

Session I Methodology I.- Monitoring Pasture Infectivity and Pasture Contamination with Infective Stages of Dictyocaulus viviparus.- The Correct Handling of Faecal Samples Used for Examination of Dietyocaulus viviparus Larvae.- Some Effects of Storage on the Recovery of Dietyocaulus viviparus Larvae from Faeces.- Experiences with Our Techniques for the Recovery of Nematode Larvae from Herbage.- A Technique for the Recovery of Infective Trichostrongyle Larvae from Soil.- Session I Methodology II.- A Modified and Simple Mcmaster Technique.- Comparison of Techniques for Assessment of the Contamination of Pasture Herbage with Infective Nematode Larvae.- Recovery of Ostertagia from the Bovine Abomasal Mucosa by Immersion in Warm Normal Saline.- Controlled/Critical Tests in the Evaluation of Anthelmintic Activity.- General Discussion.- Session 2 Adult Cattle.- Observations on the Epidemiology and Pathogenicity of Nematode Infections in Adult Dairy Cattle in Great Britain.- An Evaluation of Anthelmintic Treatment in a Dairy Herd.- The Prevalence of Gastro-Intestinal Nematodes in Dairy Cows.- Wormburdens in Adult Dairy Cattle.- Organisation of a Large Collaborative Trial on the Effect of Anthelmintic Treatment on the Milk Yield of Dairy Cows.- General Discussion.- Session 3 Epidemiology I.- Significance of Nematodiasis in Cattle Grazing on Alpine Pastures.- Recent Results on Epidemiology of Nematode Infections in Beef and Dairy Cattle in France.- Recent Danish Studies on the Epidemiology of Bovine Parasitic Bronchitis.- A New Aspect of the Epidemiology of Parasitic Bronchitis in Calves.- Parasitological Effect of Alternate Grazing of Cattle and Sheep.- Session 3 Epidemiology II.- Fluctuations of Herbage Infestation on Calf Pastures and Weather from 1973 to 1979.- The Role of the Soil as a Potential Reservoir for Infective Larvae of Ostertagia ostertagi.- The Significance of Winter Survival of Free-Living Stages on the Epidemiology of Nematodiasis: Its Effect in Connection with Set-Stocking and Alternate Grazing with Sheep and Cattle.- Winter Ostertagiasis in Swedish Cattle.- General Discussion.- Session 4 Control I.- Vaccination or Tactical Treatment with Levamisole against Lungworm.- Treatment of Cattle Nematodiasis with ®Panacur.- A New Method of Control of Gastro-Intestinal Parasites in Grazing Calves.- Some Remarks and Control Methods of Gastro-Intestinal Nematodiasis in Cattle in Piedmont, Italy.- Session 4 Control II.- Some Observations on the Control of Trichostrongylosis in Calves in the Field.- Coordinated Research Programme on Control of Ostertagiasis in Grazing Calves in Denmark.- Use of Anthelmintic Given at Continuous Low Dosage in Drinking Water to Control Nematodiasis in Calves.- Some Physical Aspects of Continuous Low Dosage of Anthelmintics VIA Drinking Water.- General Discussion.- Session 5 Problems Associated with Modern Animal Husbandry Practices.- Epidemiology and Control of Gastro-Intestinal Helminthosis in Cattle Intensive-Breeding.- The Importance of Stocking Rate to the Uptake pf Gastrointestinal Nematodes by Grazing Calves.- Trichostrongylid Nematode Infections Associated with the Handling of Cattle Slurry — A Survey of Danish Studies.- Session 6 Other Aspects of Nematodiasis.- Acquisition of Immunological Competence to Gastrointestinal Trichostrongyles by Young Ruminants: Epidemiological Significance.- Performance of Resistant and Non-Resistant Calves During Repeated Infection with Cooperia SPP. and ostertagia SPP. and mixed species.- Infections with Cooperia Oncophora in Calves.- Experiments with MixedInfections of Ostertagia ostertagi and Fasciola hepatica in Calves.- Toxocariasis of Cattle in Belgium.- Studies on Nematodes in Cattle Performed at University of Bologna. A Survey with Special Emphasis on Strongyzoidespapillosus.- Proposals and Recommendations Made by Working Groups.- List of Participants.