Genetic differences in resistance to gastrointestinal nematodes in different sheep breeds under conditions of natural infection

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Author :
Publisher : Cuvillier Verlag
ISBN 13 : 3736938543
Total Pages : 125 pages
Book Rating : 4.7/5 (369 download)

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Book Synopsis Genetic differences in resistance to gastrointestinal nematodes in different sheep breeds under conditions of natural infection by : Ahmed Idris

Download or read book Genetic differences in resistance to gastrointestinal nematodes in different sheep breeds under conditions of natural infection written by Ahmed Idris and published by Cuvillier Verlag. This book was released on 2011-08-15 with total page 125 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objectives of the present study were to determine the prevalence of gastrointestinal nematodes (GIN) in naturally infected lambs of five sheep breeds based on individual faecal egg counts (FEC) in Germany, and to evaluate the predictable influence of birth type, age, sex and breed of lambs on the excretion of nematode eggs in the faeces. Furthermore, the use of potential infection indicator traits such as the dag score (DS), the faecal consistency (FCS), the body condition (BCS) and the FAMACHA©, either separately or combined, to detect individually lambs in need for drenching when exposed to natural nematode infections was investigated. Additionally, the possibility of breeding for resistance against GIN in German sheep breeds directly based on faecal egg counts (FEC) or indirectly by using DS, FCS, BCS and FAMACHA© was also evaluated. Moreover, the relationships between the nematode infection with Haemonchus contortus and body and organ measurements of lambs were estimated. The field trials under natural conditions of nematode infections (Chapters II, III and IV) were carried out on 3,924 lambs of different breeds aged from 3 to 15 months. The breeds used were Merinoland (ML), German Blackhead Mutton (GBM), Texel (TX), Rhoen (RH), and Merino long-wool (MLW). Data collection took place on various farms. The samples were collected once during the grazing seasons in 2006, 2007 and 2008. At the time of faecal sample collection, the FAMACHA© score, the BCS, the DS and FCS were additionally determined and served as potential infection indicator traits. The lambs were not dewormed at least 45 days before the sampling time. Sixty-three percent of the lambs were infected with GIN. The infections were mostly low to moderate and involved different species. Trichostrongylus spp. were the predominant species based on the percentage of larvae in the faecal cultures. Only 11.4% of faecal samples were Eimeria oocysts free. Tapeworm eggs were encountered in 13.2% of all samples. The farms affected the prevalence of GIN infections significantly (P 0.001). Significantly higher FECs (P

Genetics and Breeding for Disease Resistance of Livestock

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Publisher : Academic Press
ISBN 13 : 0128172673
Total Pages : 386 pages
Book Rating : 4.1/5 (281 download)

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Book Synopsis Genetics and Breeding for Disease Resistance of Livestock by : Aruna Pal

Download or read book Genetics and Breeding for Disease Resistance of Livestock written by Aruna Pal and published by Academic Press. This book was released on 2019-10-22 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt: Genetics and Breeding for Disease Resistance of Livestock is a solid resource that combines important information on the underlying genetic causes and governing factors for disease resistance in food animals and applications for breeding purposes. It describes genomics at each species level to help researchers and students understand disease resistance and immunology using genomics and its application in breeding for disease resistance. This useful reference makes it easy for readers to understand and undergo further research in immunology and disease resistance for livestock. It includes novel applications and research material that is ideal for students, teachers, academicians and researchers. - Presents basic principles and protocols to describe research methodologies through diagrammatic illustrations with figures, flow charts, examples, and references - Covers various disease occurrences in livestock and the methodologies available to identify the various pathogens responsible for these diseases - Includes advanced breeding techniques and practical applications

Worm Control for Small Ruminants in Tropical Asia

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Publisher :
ISBN 13 : 9781863204712
Total Pages : 264 pages
Book Rating : 4.2/5 (47 download)

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Book Synopsis Worm Control for Small Ruminants in Tropical Asia by :

Download or read book Worm Control for Small Ruminants in Tropical Asia written by and published by . This book was released on 2004 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: Draws together information from a number of sources to describe the state of research and development on worm control in Asia and the Pacific.

Handbook of Organic Food Safety and Quality

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Publisher : Elsevier
ISBN 13 : 1845693418
Total Pages : 543 pages
Book Rating : 4.8/5 (456 download)

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Book Synopsis Handbook of Organic Food Safety and Quality by : J Cooper

Download or read book Handbook of Organic Food Safety and Quality written by J Cooper and published by Elsevier. This book was released on 2007-07-26 with total page 543 pages. Available in PDF, EPUB and Kindle. Book excerpt: Due to increasing consumer demand for safe, high quality, ethical foods, the production and consumption of organic food and produce has increased rapidly over the past two decades. In recent years the safety and quality of organic foods has been questioned. If consumer confidence and demand in the industry is to remain high, the safety, quality and health benefits of organic foods must be assured. With its distinguished editor and team of top international contributors, Handbook of organic food safety and quality provides a comprehensive review of the latest research in the area.Part one provides an introduction to basic quality and safety with chapters on factors affecting the nutritional quality of foods, quality assurance and consumer expectations. Part two discusses the primary quality and safety issues related to the production of organic livestock foods including the effects of feeding regimes and husbandry on dairy products, poultry and pork. Further chapters discuss methods to control and reduce infections and parasites in livestock. Part three covers the main quality and safety issues concerning the production of organic crop foods, such as agronomic methods used in crop production and their effects on nutritional and sensory quality, as well as their potential health impacts. The final part of the book focuses on assuring quality and safety throughout the food chain. Chapters focus on post-harvest strategies to reduce contamination of food and produce, and ethical issues such as fair trade products. The final chapters conclude by reviewing quality assurance strategies relating to specific organic food sectors.The Handbook of organic food quality and safety is a standard reference for professionals and producers within the industry concerned with improving and assuring the quality and safety of organic foods. - Improve the safety, quality and health benefits of organic foods - Discusses the latest research findings in this area - Focuses on assuring quality and safety throughout the food chain

Breeding for Disease Resistance in Farm Animals

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Publisher : CABI
ISBN 13 : 1845935551
Total Pages : 370 pages
Book Rating : 4.8/5 (459 download)

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Book Synopsis Breeding for Disease Resistance in Farm Animals by : Stephen C. Bishop

Download or read book Breeding for Disease Resistance in Farm Animals written by Stephen C. Bishop and published by CABI. This book was released on 2010 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt: Addressing principles associated with breeding animals for enhanced health and resistance to specific diseases, this book provides a review of the field illustrated with examples covering many diseases of importance to livestock production, across all major livestock species. Authored by experts in the field, this updated edition covers techniques and approaches, viruses, TSEs, bacteria, parasites, vectors, and broader health issues seen in production systems, including metabolic diseases. The book will be an essential reference for professionals in the field, scientists and researchers, students, breeders, veterinarians, agricultural advisors and policy makers.

Investing in Animal Health Research to Alleviate Poverty

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Author :
Publisher : ILRI (aka ILCA and ILRAD)
ISBN 13 : 9789291461080
Total Pages : 152 pages
Book Rating : 4.4/5 (61 download)

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Book Synopsis Investing in Animal Health Research to Alleviate Poverty by : Brian D. Perry

Download or read book Investing in Animal Health Research to Alleviate Poverty written by Brian D. Perry and published by ILRI (aka ILCA and ILRAD). This book was released on 2002-01-01 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Sheep Nutrition

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Publisher : CABI
ISBN 13 : 9780851998770
Total Pages : 400 pages
Book Rating : 4.9/5 (987 download)

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Book Synopsis Sheep Nutrition by : M. Freer

Download or read book Sheep Nutrition written by M. Freer and published by CABI. This book was released on 2002-01-01 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a review of the current state of knowledge on all aspects of sheep nutrition. The main emphasis is on sheep grazing in systems that range from intensively utilized sown pastures to extensive rangelands.

Biological Control of Gastro-intestinal Nematodes of Ruminants Using Predacious Fungi

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Publisher : Food & Agriculture Org.
ISBN 13 : 9789251041093
Total Pages : 108 pages
Book Rating : 4.0/5 (41 download)

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Book Synopsis Biological Control of Gastro-intestinal Nematodes of Ruminants Using Predacious Fungi by : Food and Agriculture Organization of the United Nations

Download or read book Biological Control of Gastro-intestinal Nematodes of Ruminants Using Predacious Fungi written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 1998 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes papers about Argentina, Fiji, India, Indonesia, Kenya, Malaysia, Mexico, Paraguay & Uruguay

Acta Parasitologica

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Publisher :
ISBN 13 :
Total Pages : 592 pages
Book Rating : 4.:/5 ( download)

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Book Synopsis Acta Parasitologica by :

Download or read book Acta Parasitologica written by and published by . This book was released on 2003 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Parasitism and Parasitic Control in Animals

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Publisher : CABI
ISBN 13 : 1800621868
Total Pages : 298 pages
Book Rating : 4.8/5 (6 download)

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Book Synopsis Parasitism and Parasitic Control in Animals by : Hafiz Muhammad Rizwan

Download or read book Parasitism and Parasitic Control in Animals written by Hafiz Muhammad Rizwan and published by CABI. This book was released on 2023-07-10 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: Parasitism and Parasitic Control in Animals brings together all the details needed to appropriately manage parasites in domestic animals. It provides comprehensive coverage of parasites and factors affecting their transmission, principles of parasite control, diagnosis, and assessment of parasitological information. With numerous new case histories and maps showing the spread of anthelmintic resistance, this textbook forms an essential guide for veterinary practitioners, students and technicians. It is also an invaluable resource for parasitologists, researchers, animal health professionals and anyone working with these parasites in developing countries.

Diagnosis and Control of Johne's Disease

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Publisher : National Academies Press
ISBN 13 : 0309168449
Total Pages : 243 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Diagnosis and Control of Johne's Disease by : National Research Council

Download or read book Diagnosis and Control of Johne's Disease written by National Research Council and published by National Academies Press. This book was released on 2003-08-13 with total page 243 pages. Available in PDF, EPUB and Kindle. Book excerpt: Johne's Disease is a chronic, progressive intestinal disease caused by infection with Mycobacterium avium subspecies paratuberculosis (Map) that affects primarily ruminant animals. In recent decades there has been growing concern over the lack of effective control of this disease and questions have arisen regarding the possibility that Map infection could be a cause of some cases of Crohn's disease in humans. This report presents a broad outline of the steps that should be taken to control Johne's disease, reduce the spread of Map, and minimize effects of the disease in animals. The report also describes the weaknesses of our current research agenda and provides recommendations for a new research strategy to resolve the question of whether there is a link between Johne's and Crohn's diseases.

Cumulated Index Medicus

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Publisher :
ISBN 13 :
Total Pages : 832 pages
Book Rating : 4.:/5 (31 download)

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Book Synopsis Cumulated Index Medicus by :

Download or read book Cumulated Index Medicus written by and published by . This book was released on 1978 with total page 832 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Veterinary Parasitology

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Publisher : John Wiley & Sons
ISBN 13 : 1119073677
Total Pages : 1032 pages
Book Rating : 4.1/5 (19 download)

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Book Synopsis Veterinary Parasitology by : M. A. Taylor

Download or read book Veterinary Parasitology written by M. A. Taylor and published by John Wiley & Sons. This book was released on 2015-10-26 with total page 1032 pages. Available in PDF, EPUB and Kindle. Book excerpt: The recipient of much praise and acclaim, Veterinary Parasitology is widely considered to be the definitive veterinary parasitology reference for practitioners and students alike. This Fourth Edition has been developed and enhanced into a two-part reference to reflect recent advances in the field, modern teaching practice, and updated parasite taxonomic classification systems. Part One contains expanded individual parasite descriptions using current taxonomic status within three new chapters on Helminthology, Protozoology and Entomology. Further updated chapters are provided on: The laboratory diagnosis of parasitism, Antiparasitics, The epidemiology of parasitic diseases, and Host resistance to parasitic diseases. Host species chapters have been retained and expanded and are found in Part Two of the edition. KEY FEATURES Tailored for those directly involved in the diagnosis, treatment and control of parasitic diseases of domestic animals Compatible with the diversity of current parasitology teaching modules – both for teaching parasite systematics and diseases on a host-organ basis Offers the most detailed parasite descriptions available today for teachers, research groups, veterinarians in practice and in government service, and others involved in aspects of parasitic disease Thoroughly revised and restructured to reflect the most up-to-date advancements in the field, Veterinary Parasitology, Fourth Edition, enhances its stellar reputation as the gold standard reference text for the global veterinary profession.

Animal Science Reviews 2012

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Publisher : CABI
ISBN 13 : 1780643020
Total Pages : 251 pages
Book Rating : 4.7/5 (86 download)

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Book Synopsis Animal Science Reviews 2012 by : David Hemming

Download or read book Animal Science Reviews 2012 written by David Hemming and published by CABI. This book was released on 2013-02-01 with total page 251 pages. Available in PDF, EPUB and Kindle. Book excerpt: Animal Science Reviews 2012 provides scientists and students in animal science with timely analysis on key topics in current research. Originally published online in CAB Reviews, this volume makes available in printed form the reviews in animal science published during 2012.

Blackwell's Five-Minute Veterinary Consult

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Publisher : John Wiley & Sons
ISBN 13 : 047096118X
Total Pages : 1045 pages
Book Rating : 4.4/5 (79 download)

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Book Synopsis Blackwell's Five-Minute Veterinary Consult by : Scott R. R. Haskell

Download or read book Blackwell's Five-Minute Veterinary Consult written by Scott R. R. Haskell and published by John Wiley & Sons. This book was released on 2011-08-24 with total page 1045 pages. Available in PDF, EPUB and Kindle. Book excerpt: The most trusted and well-known quick-reference resource available to veterinarians, Blackwell’s Five-Minute Veterinary Consult series includes this volume on ruminants. Hundreds of top specialists provide coverage of 420 topics arranged alphabetically from A-Z for efficient searching, with each topic indicating the species affected. An accompanying CD includes an additional 175 topics covering management, husbandry, reproduction, and diagnostics. Whether you’re a student or a practicing veterinarian, this reference book will cut down on the time spent navigating through other resources, allowing you to study, diagnose and treat more quickly.

Should we aim for genetic improvement in host resistance or tolerance to infectious disease?

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Author :
Publisher : Frontiers E-books
ISBN 13 : 2889191052
Total Pages : 100 pages
Book Rating : 4.8/5 (891 download)

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Book Synopsis Should we aim for genetic improvement in host resistance or tolerance to infectious disease? by : Andrea B. Doeschl-Wilson

Download or read book Should we aim for genetic improvement in host resistance or tolerance to infectious disease? written by Andrea B. Doeschl-Wilson and published by Frontiers E-books. This book was released on with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent advances in quantitative genetic and genomic studies have shed light on the important role of genetic control strategies for reducing disease risk and severity in livestock populations. There are two alternative host defence strategies to infectious pathogens that could be enhanced by genetic selection: improvement of host resistance versus improvement of host tolerance to infectious pathogens. Resistance refers to mechanisms that restrict the reproduction rate of a pathogen within a host, whilst tolerance mechanisms focus on minimising the damage that a pathogen inflicts on the host. Both strategies may have a similar impact on individual host fitness and performance, but can have contrasting effects on population performance and disease risk and severity. For example, improving host resistance may result in successful eradication of a disease from a livestock population, whereas disease eradication may be difficult if hosts are tolerant as these can harbour the pathogen without showing obvious or severe symptoms. On the other hand, it has been argued that increasing host resistance would fuel the arms race between host and pathogen and stimulate pathogen evolution towards higher virulence. Increasing tolerance, in contrast, imposes no or little selection pressure on the pathogen. Further, whereas disease resistance mechanisms may be specific to a particular pathogen (e.g. development of specific antibodies), tolerance mechanisms that repair damaged tissues are associated with the host rather than the pathogen, and are thus more likely to be generic to a range of pathogens. Hence, improving tolerance may be beneficial if individuals are exposed to a variety of pathogens or pathogen strains, and disease eradication has proven difficult. In contrast to evolutionary biology and plant breeding, animal breeding has only recently started to seriously consider a distinction between disease resistance and tolerance and their consequences. However, a deeper understanding of the underlying mechanisms and implications of improving either or both of the host defence mechanisms on future disease risk and severity is urgently needed by animal scientists, veterinarians and breeders to make informed decisions that help to maintain healthy livestock populations and guarantee food security. The topic ‘genetic improvement of disease resistance v tolerance’ would lend itself to research papers covering a variety of aspects that need to be considered, such as ‘how to obtain genetic parameter estimates and genomic breeding values related to disease resistance / tolerance’, ‘evidence for host genetic influence of resistance or tolerance’, ‘genetic, genomic and immunological understanding of resistance / tolerance mechanisms’, ‘epidemiological consequences of improving disease resistance / tolerance’. I believe that this research topic is both timely and relevant, and that sufficient knowledge is available across disciplines for composing valuable research / review articles that stimulate interest to a wide range of readers of Frontiers, and thus promote the growth of this journal.

Veterinary Parasitology

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Author :
Publisher : Cambridge University Press
ISBN 13 : 9780521794381
Total Pages : 164 pages
Book Rating : 4.7/5 (943 download)

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Book Synopsis Veterinary Parasitology by : Richard J. Martin

Download or read book Veterinary Parasitology written by Richard J. Martin and published by Cambridge University Press. This book was released on 2000-07-06 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: Symposium volume covering recent developments in veterinary parasitology.