LEADER 05028nam 22006134a 450 001 996213207703316 005 20230617035030.0 010 $a1-280-21316-7 010 $a9786610213160 010 $a0-470-70861-1 010 $a0-470-99543-2 010 $a1-4051-4809-8 035 $a(CKB)1000000000351746 035 $a(EBL)238409 035 $a(OCoLC)475948429 035 $a(SSID)ssj0000193417 035 $a(PQKBManifestationID)11166303 035 $a(PQKBTitleCode)TC0000193417 035 $a(PQKBWorkID)10219001 035 $a(PQKB)10083759 035 $a(MiAaPQ)EBC238409 035 $a(EXLCZ)991000000000351746 100 $a20040305d2004 uy 0 101 0 $aeng 135 $aur|n|---||||| 181 $ctxt 182 $cc 183 $acr 200 10$aLivestock biodiversity$b[electronic resource] $egenetic resources for the farming of the future /$fStephen J.G. Hall 205 $a1st ed. 210 $aAmes, Iowa $cBlackwell Pub.$d2004 215 $a1 online resource (282 p.) 300 $aDescription based upon print version of record. 311 1 $a0-632-05499-9 320 $aIncludes bibliographical references (p. [217]-257) and indexes. 327 $aLivestock Biodiversity: Genetic resources for the farming of the future; Contents; Preface; Acknowledgements; Introduction; PART 1: THE NATURE OF LIVESTOCK BIODIVERSITY; 1 Biology of domestication; Introduction; Domestication and models of evolution; Changes in animals following domestication; Genetic processes under domestication: the origin of heritable variation; Genetic processes under domestication: interactions between genes; Artificial selection; Natural selection; Sexual selection under domestication; Conclusions; 2 Origin and differentiation of breeds; Introduction; Definitions 327 $aThe recorded history of breed formationCultural background to breed differentiation; Conclusions; PART 2: THE UTILIZATION OF LIVESTOCK BIODIVERSITY; 3 Ecological adaptations of breeds; Introduction; Genotype-environment interaction; Body size and physiological adaptation; Adaptations to extreme temperatures; Adaptations to the vegetation environment; Coping with parasites and disease; Conclusions; 4 Crossbreeding and coadaptation; Introduction; The value of crossbreeding; Production of synthetic breeds; Molecular indicators of introgression; Biotechnology; Genetic architectures; Conclusions 327 $a5 Livestock biodiversity and sustainable developmentIntroduction; Global food security and livestock biodiversity; National policies for livestock biodiversity in the developing world; Environmental aspects and industrialized economies; Conclusions; PART 3: THE ASSESSMENT OF LIVESTOCK BIODIVERSITY; 6 Global status of livestock biodiversity; Introduction; Numbers of breeds; Feral livestock; Conclusions; 7 Characterization of livestock biodiversity; Introduction; Breed characterizations: phenotypic variation; Summarizing and interpreting genetic differences between breeds 327 $aMolecular approaches to breed historyWithin-breed compared with between-breed variation; Conclusions; PART 4: THE CONSERVATION OF LIVESTOCK BIODIVERSITY; 8 Management, organization and policy; Introduction; History of concern for livestock biodiversity: the example of the UK; Breeds as the basis for conservation; National activities; International and regional activities; Man-made and natural disasters; Capturing the economic benefits of livestock biodiversity; Scientific input into conservation of livestock biodiversity; Conclusions; 9 Conserving specific breeds; Introduction 327 $aConservation of within-breed variationRecovery of lost breeds; Cryoconservation: the background; Cryoconservation in relation to in situ conservation; Conclusions; PART 5: CONCLUSIONS; Overview; Prospects for livestock biodiversity; Scientific contribution; Policy issues: funding; The future; Appendix; References; Subject index; Country & breed index 330 $aLivestock biodiversity is integral to our culture, history, environment, economy and, most importantly, our future. Thousands of livestock breeds, from relatively small genetic pools, have evolved over time to suit particular environments and farming systems. This is both the result of natural processes and of human needs for specialized livestock - as our knowledge of genetics continues to increase we achieve a greater understanding of how this biodiversity evolved. This book offers a detailed and comprehensive overview of livestock biodiversity. It explores the history behind it, shows how 606 $aLivestock$xGermplasm resources 606 $aBiodiversity conservation 615 0$aLivestock$xGermplasm resources. 615 0$aBiodiversity conservation. 676 $a636.0821 700 $aHall$b Stephen J. G$0118939 801 0$bMiAaPQ 801 1$bMiAaPQ 801 2$bMiAaPQ 906 $aBOOK 912 $a996213207703316 996 $aLivestock biodiversity$92190175 997 $aUNISA