Selected Readings On The History And Use Of Old Livestock Breeds
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Selected Readings On The History And Use Of Old Livestock Breeds
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Author :
language : en
Publisher:
Release Date : 1992
Selected Readings On The History And Use Of Old Livestock Breeds written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Biodiversity categories.
Includes cattle, chickens, horses, pigs and sheep.
Guide To Historical Research At The National Agriculture Library
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Author : Susan Chapman
language : en
Publisher:
Release Date : 1994
Guide To Historical Research At The National Agriculture Library written by Susan Chapman and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Agriculture categories.
Monthly Catalog Of United States Government Publications
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Author :
language : en
Publisher:
Release Date : 1992
Monthly Catalog Of United States Government Publications written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Government publications categories.
Monthly Catalogue United States Public Documents
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Author :
language : en
Publisher:
Release Date : 1992
Monthly Catalogue United States Public Documents written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Government publications categories.
Bibliographic Series Current Titles Listing
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Author : National Agricultural Library (U.S.). Public Services Division
language : en
Publisher:
Release Date : 1992
Bibliographic Series Current Titles Listing written by National Agricultural Library (U.S.). Public Services Division and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Agriculture categories.
Meeting The Information Requirements Of The Animal Welfare Act
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Author : Animal Welfare Information Center (U.S.)
language : en
Publisher:
Release Date : 1994
Meeting The Information Requirements Of The Animal Welfare Act written by Animal Welfare Information Center (U.S.) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Animal rights categories.
Animal Welfare Information Center Newsletter
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Author :
language : en
Publisher:
Release Date : 1992
Animal Welfare Information Center Newsletter written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Animal welfare categories.
Advances In Farm Animal Genomic Resources
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Author : Stéphane Joost
language : en
Publisher: Frontiers Media SA
Release Date : 2016-01-28
Advances In Farm Animal Genomic Resources written by Stéphane Joost and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-01-28 with Biodiversity categories.
The history of livestock started with the domestication of their wild ancestors: a restricted number of species allowed to be tamed and entered a symbiotic relationship with humans. In exchange for food, shelter and protection, they provided us with meat, eggs, hides, wool and draught power, thus contributing considerably to our economic and cultural development. Depending on the species, domestication took place in different areas and periods. After domestication, livestock spread over all inhabited regions of the earth, accompanying human migrations and becoming also trade objects. This required an adaptation to different climates and varying styles of husbandry and resulted in an enormous phenotypic diversity. Approximately 200 years ago, the situation started to change with the rise of the concept of breed. Animals were selected for the same visible characteristics, and crossing with different phenotypes was reduced. This resulted in the formation of different breeds, mostly genetically isolated from other populations. A few decades ago, selection pressure was increased again with intensive production focusing on a limited range of types and a subsequent loss of genetic diversity. For short-term economic reasons, farmers have abandoned traditional breeds. As a consequence, during the 20th century, at least 28% of farm animal breeds became extinct, rare or endangered. The situation is alarming in developing countries, where native breeds adapted to local environments and diseases are being replaced by industrial breeds. In the most marginal areas, farm animals are considered to be essential for viable land use and, in the developing world, a major pathway out of poverty. Historic documentation from the period before the breed formation is scarce. Thus, reconstruction of the history of livestock populations depends on archaeological, archeo-zoological and DNA analysis of extant populations. Scientific research into genetic diversity takes advantage of the rapid advances in molecular genetics. Studies of mitochondrial DNA, microsatellite DNA profiling and Y-chromosomes have revealed details on the process of domestication, on the diversity retained by breeds and on relationships between breeds. However, we only see a small part of the genetic information and the advent of new technologies is most timely in order to answer many essential questions. High-throughput single-nucleotide polymorphism genotyping is about to be available for all major farm animal species. The recent development of sequencing techniques calls for new methods of data management and analysis and for new ideas for the extraction of information. To make sense of this information in practical conditions, integration of geo-environmental and socio-economic data are key elements. The study and management of farm animal genomic resources (FAnGR) is indeed a major multidisciplinary issue. The goal of the present Research Topic was to collect contributions of high scientific quality relevant to biodiversity management, and applying new methods to either new genomic and bioinformatics approaches for characterization of FAnGR, to the development of FAnGR conservation methods applied ex-situ and in-situ, to socio-economic aspects of FAnGR conservation, to transfer of lessons between wildlife and livestock biodiversity conservation, and to the contribution of FAnGR to a transition in agriculture (FAnGR and agro-ecology).
Government Reference Books
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Author :
language : en
Publisher:
Release Date : 1992
Government Reference Books written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Government publications categories.
Satisfying The Information Requirements Of The Animal Welfare Act
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Author :
language : en
Publisher:
Release Date : 1992
Satisfying The Information Requirements Of The Animal Welfare Act written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Animal welfare categories.