Selective Breeding
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Selective Breeding In Aquaculture An Introduction
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Author : Trygve Gjedrem
language : en
Publisher: Springer Science & Business Media
Release Date : 2010-03-17
Selective Breeding In Aquaculture An Introduction written by Trygve Gjedrem and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-03-17 with Science categories.
The foundation of quantitative genetics theory was developed during the last century and facilitated many successful breeding programs for cultivated plants and t- restrial livestock. The results have been almost universally impressive, and today nearly all agricultural production utilises genetically improved seed and animals. The aquaculture industry can learn a great deal from these experiences, because the basic theory behind selective breeding is the same for all species. The ?rst published selection experiments in aquaculture started in 1920 s to improve disease resistance in ?sh, but it was not before the 1970 s that the ?rst family based breeding program was initiated for Atlantic salmon in Norway by AKVAFORSK. Unfortunately, the subsequent implementation of selective breeding on a wider scale in aquaculture has been slow, and despite the dramatic gains that have been demonstrated in a number of species, less than 10% of world aquaculture production is currently based on improved stocks. For the long-term sustainability of aquaculture production, there is an urgent need to develop and implement e- cient breeding programs for all species under commercial production. The ability for aquaculture to successfully meet the demands of an ever increasing human p- ulation, will rely on genetically improved stocks that utilise feed, water and land resources in an ef?cient way. Technological advances like genome sequences of aquaculture species, and advanced molecular methods means that there are new and exciting prospects for building on these well-established methods into the future.
Genetic Prehistory In Selective Breeding
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Author : Roger J. Wood
language : en
Publisher: Oxford University Press on Demand
Release Date : 2001
Genetic Prehistory In Selective Breeding written by Roger J. Wood and has been published by Oxford University Press on Demand this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with Nature categories.
Before Mendel, who came closest to the truth about heredity? This book examines the activities of sheep breeders able to transform the appearance and qualities of their stock by combining different traits of body or wool into new patterns. Exploiting what were then untried procedures -individual trait selection, very close inbreeding and progeny testing - they demonstrated inheritance from both sexes and showed how it could be stabilised. Major advances in breeding are associated with the English farmer Robert Bakewell (1725-1795). By the following century, when the sameprocedures had been established at breeding centres in central Europe, theory as well as practice became the subject of wider attention. In the Brno Sheep Breeders' Society, discussions of patterns of heredity finally gave way to the physiological question, 'What is inherited and how?' The questionwas posed by Cyrill Napp, abbot of the monastery to which Mendel was admitted six years later.
Selective Breeding
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Author :
language : en
Publisher:
Release Date : 2010
Selective Breeding written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with Livestock categories.
Improving Livestock Through Selective Breeding
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Author :
language : en
Publisher:
Release Date : 2002
Improving Livestock Through Selective Breeding written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Breeding categories.
Evolution The Hidden Assumptions How A Simple Idea Of Selective Breeding Became The Theory Of Evolution
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Author : Amitabha Lahiri
language : en
Publisher: Evolution
Release Date : 2018-07-27
Evolution The Hidden Assumptions How A Simple Idea Of Selective Breeding Became The Theory Of Evolution written by Amitabha Lahiri and has been published by Evolution this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-07-27 with Nature categories.
Darwin's theory of evolution by means of natural selection forms the basis for the "scientific" explanation for the existence of all life on Earth.It lays the claim that all living animals today have evolved from their ancestors through a process of 'natural selection', which in simple terms is a form of selective breeding that takes place in nature, as the animals accumulate advantageous variations and get better and better at surviving in their environment.But is it really true?We see turtles that have been roaming the seas for 350 million years never really adapted to a life in water! They can neither breath underwater, nor to lay eggs in the water, both of which are extreme threats to survival.Similarly could egg-laying reptiles have actually evolved into child-bearing mammals through natural selection? Then what kind of reproductive system would the intermediate generations have? Is it biologically feasible to have a creature with a reproductive system that harbours the embryo partially in an egg and partially in a uterus or is it an assumption made to fit the theory?This book challenges the fundamental paradigm of evolution by natural selection and points out the hidden corners, where assumptions took over scientific logic, and a simple idea of selective breeding of farm animals became the theory of evolution.
The New Eugenics
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Author : Judith Daar
language : en
Publisher: Yale University Press
Release Date : 2017-02-21
The New Eugenics written by Judith Daar and has been published by Yale University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-02-21 with Law categories.
A provocative examination of how unequal access to reproductive technology replays the sins of the eugenics movement Eugenics, the effort to improve the human species by inhibiting reproduction of “inferior” genetic strains, ultimately came to be regarded as the great shame of the Progressive movement. Judith Daar, a prominent expert on the intersection of law and medicine, argues that current attitudes toward the potential users of modern assisted reproductive technologies threaten to replicate eugenics’ same discriminatory practices. In this book, Daar asserts how barriers that block certain people’s access to reproductive technologies are often founded on biases rooted in notions of class, race, and marital status. As a result, poor, minority, unmarried, disabled, and LGBT individuals are denied technologies available to well-off nonminority heterosexual applicants. An original argument on a highly emotional and important issue, this work offers a surprising departure from more familiar arguments on the issue as it warns physicians, government agencies, and the general public against repeating the mistakes of the past.
Gift Technology Manual
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Author :
language : en
Publisher: WorldFish
Release Date : 2004
Gift Technology Manual written by and has been published by WorldFish this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with Electronic books categories.
Selective Breeding Of Animals
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Author : Lifeliqe
language : en
Publisher:
Release Date : 2019
Selective Breeding Of Animals written by Lifeliqe and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019 with Breeding categories.
This 45 minute lesson plan covers the differences between natural and artificial selection.
Unnatural Selection
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Author : Katrina van Grouw
language : en
Publisher: Princeton University Press
Release Date : 2018-07-31
Unnatural Selection written by Katrina van Grouw and has been published by Princeton University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-07-31 with Science categories.
A lavishly illustrated look at how evolution plays out in selective breeding Unnatural Selection is a stunningly illustrated book about selective breeding--the ongoing transformation of animals at the hand of man. More important, it's a book about selective breeding on a far, far grander scale—a scale that encompasses all life on Earth. We'd call it evolution. A unique fusion of art, science, and history, this book celebrates the 150th anniversary of Charles Darwin's monumental work The Variation of Animals and Plants under Domestication, and is intended as a tribute to what Darwin might have achieved had he possessed that elusive missing piece to the evolutionary puzzle—the knowledge of how individual traits are passed from one generation to the next. With the benefit of a century and a half of hindsight, Katrina van Grouw explains evolution by building on the analogy that Darwin himself used—comparing the selective breeding process with natural selection in the wild, and, like Darwin, featuring a multitude of fascinating examples. This is more than just a book about pets and livestock, however. The revelation of Unnatural Selection is that identical traits can occur in all animals, wild and domesticated, and both are governed by the same evolutionary principles. As van Grouw shows, animals are plastic things, constantly changing. In wild animals the changes are usually too slow to see—species appear to stay the same. When it comes to domesticated animals, however, change happens fast, making them the perfect model of evolution in action. Suitable for the lay reader and student, as well as the more seasoned biologist, and featuring more than four hundred breathtaking illustrations of living animals, skeletons, and historical specimens, Unnatural Selection will be enjoyed by anyone with an interest in natural history and the history of evolutionary thinking.
Genetic Breeding And Molecular Marker Assisted Selective Breeding Of Largemouth Bass
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Author : Bai Junjie
language : en
Publisher: Academic Press
Release Date : 2019-02-23
Genetic Breeding And Molecular Marker Assisted Selective Breeding Of Largemouth Bass written by Bai Junjie and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-02-23 with Technology & Engineering categories.
Genetic Breeding and Molecular Marker-Assisted Selective Breeding of Largemouth Bass provides evidenced-based research that summarizes the theory and practice of genetic breeding. It provides a theoretical basis and technical support for the genetic improvement of largemouth bass varieties, but is also a good reference on the genetic breeding of other farmed fish. As knowledge of systematic studies, including germplasm resources, biology, quantitative genetics, selection breeding, variety hybridization and molecular marker assisted breeding is needed to increase growth performance, this book provides comprehensive information that is suitable for aquatic genetic breeding researchers and undergraduate and graduate students in aquatic genetics and breeding. Presents research on the collection, conservation and evaluation of domestic and abroad germplasm resources, basic biology and genetics, and different types of breeding Provides both theory and practical application to enhance the growth and development of new species of fish Includes methods to analyze data results and better predict research outcomes