The Epidemiology and Control of Gastrointestinal Parasites of Cattle in Australia


Book Description

The distribution of beef and dairy cattle in relation to climatic zones within Australia. Lifecycle and pathogenesis of helminths of lesser economic importance. Lifecycle and pathogenesis of helminths of major economic importance. Factors influencing worm populations in cattle. Epidemiology and control of parasitic gastroenteritis of cattle in the temperate climate zone. Epidemiology and contrl of parasitic gastroenteritis of cattle in the tropical/sub-tropical zone. Anthelmintics for cattle.













Epidemiology and Control of Nematodiasis in Cattle


Book Description

This publication is the Proceedings of a workshop held at the Royal Veterinary and Agricultural University in Copenhagen, Denmark on 4th - 6th February, 1980, sponsored by the Commission of the EUropean Communities (CEO) as a part of the programme of coordination of agricultural research in the field of animal pathology. The CEO wishes to thank those who took responsibility for the organisation of the workshop, those who presented the papers, and all participants. VII CONTENTS SESSION I METHODOLOGY I MONITORING PASTURE INFECTIVITY AND PASTURE CONTAMINATION WITH INFECTIVE STAGES OF Dictyocaulus viviparus 3 R. J. J¢rgensen THE CORRECT HANDLING OF FAECAL SAMPLES USED FOR EXAMINATION OF Dictyocaulus viviparus LARVAE 11 H. J. W. M. Cremers SOME EFFECTS OF STORAGE ON THE RECOVERY OF Dictyocaulus viviparus LARVAE FROM FAECES 17 M. T. Fox EXPERIENCES WITH OUR TECHNIQUES FOR THE RECOVERY OF NEMATODE LARVAE FROM HERBAGE H. -J. Burger 25 A TECHNIQUE FOR THE RECOVERY OF INFECTIVE TRICHOSTRONGYLE LARVAE FROM SOIL 31 K. Bairden, J. L. Duncan and J. Armour SESSION I METHODOLOGY II A MODIFIED AND SIMPLE MCMASTER TECHNIQUE 45 Sv. Aa. Henriksen COMPARISON OF TECHNIQUES FOR ASSESSMENT OF THE CONTAMINATION OF PASTURE HERBAGE WITH INFECTIVE NEMATODE LARVAE 51 J. -P. Raynaud and L. Gruner RECOVERY OF Ostertagia FROM THE BOVINE ABOMASAL MUCOSA BY IMMERSION IN WARM NORMAL SALINE 69 N. E. Downey CONTROLLED/CRITICAL TESTS IN THE EVALUATION OF ANTHELMINTIC ACTIVITY 75 D. D{;.




Gastrointestinal Nematodes of Sheep and Cattle


Book Description

A unique resource for all those interested in the impact of worms on livestock, the anthelmintics used to get rid of them and the emerging problem of anthelmintic resistance. This book provides an over-arching view of past, present and suggested future strategies for control of gastrointestinal nematode parasites in sheep and cattle. The book begins with descriptions of the biology of gastrointestinal nematodes, the harm they cause to the host and their economic impact. The main body of the book deals with the control of worms, focusing on the use of anthelmintic drenches. The relationship between drenching practices and the development of drug resistance is discussed, as well as resistance management. The authors also break new ground by discussing alternative options for worm control, including: nutritional interventions, biological control, breeding for desirable genetics and artificially improving immunity to infection. They also offer useful recommendations for program development.




Diseases of Cattle in the Tropics


Book Description

Most of the future increase in livestock production is expected to occur in the tropical and subtropical regions of the world. Cattle are the most numerous of the ruminant species in the tropics and provide the largest quantity of animal food products. More than one-third of the world's cattle are found in the tropics. Disease is the major factor which prohibits full utilization of these regions for cattle production. Various infectious and transmissible viral, rick ettsial, bacterial, and particularly protozoan and helminthic diseases, are widespread in the tropics and exert a heavy toll on the existing cattle industry there. This uncontrolled disease situation also discourages investment in cattle industries by private and government sectors. In Africa alone, it is estimated that 125 million head of cattle could be accommodated in the tropical rainbelt if the disease and other animal husbandry factors could be resolved. The potential of efficient cattle production under more favorable conditions prompted various international agencies to establish a multi million dollar International Laboratory for Research in Animal Diseases (ILRAD) in Nairobi, Kenya, Africa. In South America, principal sites for raising cattle are shifting to the savannah lands because the more fertile soils are being used for crop produc tion, however, in the savannahs also, disease remains the most powerful deterrent in implementing the cattle industry.







Parasites of Cattle and Sheep


Book Description

Understanding parasite biology and impact is essential when giving advice on parasite control in farm animals. In the first review devoted to parasites of domestic cattle and sheep alone, this book provides in-depth, focused advice which can be tailored to individual farms. It considers the impact of parasites, both as individual species and as co-infections, as well as epidemiological information, monitoring, and diagnostic procedures. Supported throughout by diagrams and photos to aid diagnosis, it also reviews the basis for control measures such as the responsible use of parasiticides, adaptive animal husbandry and other management practices.