Professor Johan Greyling is Head of the Department of Animal, Welfare and Grassland Science at the University of the Free State, South Africa. He is also Editor-in-Chief of the journal Small Ruminant Research as well as Associate Editor of the South African Journal of Animal Science. He has published widely in the area of animal breeding and worked with major international organisations such as the International Livestock Research Institute (ILRI). Dr Julius van der Werf is Professor of Animal Breeding and Genetics at the University of New England, Australia. He is co-Editor in Chief of the journal Genetics, Selection, Evolution and Associate Editor of the Journal of Animal Breeding and Genetics. He is also member of the College of Experts of the Australian Research Council.

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• Part 1 Quality issues1.Factors affecting sheep carcass characteristics: Nicola M. Schreurs and Paul R. Kenyon, Massey University, New Zealand; 2.Animal and on-farm factors affecting sheep and lamb meat quality: Nicola M. Schreurs and Paul R. Kenyon, Massey University, New Zealand; 3.Improving sheep wool quality: E. K. Doyle, University of New England, Australia; 4.Producing quality milk from sheep: Sam W. Peterson, Massey University, New Zealand; Part 2 Genetics and breeding5.Mapping the sheep genome: Noelle E. Cockett, Utah State University, USA; Brian Dalrymple, University of Western Australia, Australia; James Kijas, CSIRO, Australia; Brenda Murdoch, University of Idaho, USA; and Kim C. Worley, Baylor College of Medicine, USA; 6.Advances in sheep breeding: Julius van der Werf, School of Environmental & Rural Science, University of New England, Australia; and Andrew Swan and Robert Banks, Animal Genetics and Breeding Unit, University of New England, Australia; 7.Improving reproductive efficiency of sheep: J. P. C. Greyling, University of the Free State, South Africa; Part 3 Animal nutrition and health8.Sustainably meeting the nutrient requirements of grazing sheep: D. K. Revell, Revell Science and The University of Western Australia, Australia; 9.Sheep nutrition: formulated diets: M. L Thonney, Cornell University, USA; 10.Maintaining sheep flock health: an overview: Neil Sargison, University of Edinburgh, UK; 11.Bacterial and viral diseases affecting sheep: Francesca Chianini, Moredun Research Institute, UK; 12.Sustainable control of gastrointestinal nematode parasites affecting sheep: W. E. Pomroy, Massey University, New Zealand; 13.Understanding and improving immune function in sheep: Gary Entrican and Sean Wattegedera, Moredun Research Institute, UK; Part 4 Animal welfare14.Understanding sheep behaviour: R. Nowak, INRA/Université de Tours, France; 15.Validating indicators of sheep welfare: N.J. Beausoleil and D.J. Mellor, Massey University, New Zealand; 16.Improving the welfare of ewes: A. L. Ridler and K. J. Griffiths, Massey University, New Zealand; 17.Improving the welfare of lambs: K. Stafford, Massey University, New Zealand; 18.Humane transport, lairage and slaughter of sheep: P. H. Hemsworth and E. C. Jongman, University of Melbourne, Australia; Part 5 Sustainability19.Assessing the environmental impact of sheep production: S. F. Ledgard, AgResearch Ruakura Research Centre, New Zealand20.Nutritional strategies to minimise emissions from sheep: C. Jamie Newbold, Eli R. Saetnan and Kenton J. Hart, Aberystwyth University, UK;

Professor Johan Greyling is Head of the Department of Animal, Welfare and Grassland Science at the University of the Free State, South Africa. He is also Editor-in-Chief of the journal Small Ruminant Research as well as Associate Editor of the South African Journal of Animal Science. He has published widely in the area of animal breeding and worked with major international organisations such as the International Livestock Research Institute (ILRI). Dr Julius van der Werf is Professor of Animal Breeding and Genetics at the University of New England, Australia. He is co-Editor in Chief of the journal Genetics, Selection, Evolution and Associate Editor of the Journal of Animal Breeding and Genetics. He is also member of the College of Experts of the Australian Research Council.

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• Part 1 Quality issues1.Factors affecting sheep carcass characteristics: Nicola M. Schreurs and Paul R. Kenyon, Massey University, New Zealand; 2.Animal and on-farm factors affecting sheep and lamb meat quality: Nicola M. Schreurs and Paul R. Kenyon, Massey University, New Zealand; 3.Improving sheep wool quality: E. K. Doyle, University of New England, Australia; 4.Producing quality milk from sheep: Sam W. Peterson, Massey University, New Zealand; Part 2 Genetics and breeding5.Mapping the sheep genome: Noelle E. Cockett, Utah State University, USA; Brian Dalrymple, University of Western Australia, Australia; James Kijas, CSIRO, Australia; Brenda Murdoch, University of Idaho, USA; and Kim C. Worley, Baylor College of Medicine, USA; 6.Advances in sheep breeding: Julius van der Werf, School of Environmental & Rural Science, University of New England, Australia; and Andrew Swan and Robert Banks, Animal Genetics and Breeding Unit, University of New England, Australia; 7.Improving reproductive efficiency of sheep: J. P. C. Greyling, University of the Free State, South Africa; Part 3 Animal nutrition and health8.Sustainably meeting the nutrient requirements of grazing sheep: D. K. Revell, Revell Science and The University of Western Australia, Australia; 9.Sheep nutrition: formulated diets: M. L Thonney, Cornell University, USA; 10.Maintaining sheep flock health: an overview: Neil Sargison, University of Edinburgh, UK; 11.Bacterial and viral diseases affecting sheep: Francesca Chianini, Moredun Research Institute, UK; 12.Sustainable control of gastrointestinal nematode parasites affecting sheep: W. E. Pomroy, Massey University, New Zealand; 13.Understanding and improving immune function in sheep: Gary Entrican and Sean Wattegedera, Moredun Research Institute, UK; Part 4 Animal welfare14.Understanding sheep behaviour: R. Nowak, INRA/Université de Tours, France; 15.Validating indicators of sheep welfare: N.J. Beausoleil and D.J. Mellor, Massey University, New Zealand; 16.Improving the welfare of ewes: A. L. Ridler and K. J. Griffiths, Massey University, New Zealand; 17.Improving the welfare of lambs: K. Stafford, Massey University, New Zealand; 18.Humane transport, lairage and slaughter of sheep: P. H. Hemsworth and E. C. Jongman, University of Melbourne, Australia; Part 5 Sustainability19.Assessing the environmental impact of sheep production: S. F. Ledgard, AgResearch Ruakura Research Centre, New Zealand20.Nutritional strategies to minimise emissions from sheep: C. Jamie Newbold, Eli R. Saetnan and Kenton J. Hart, Aberystwyth University, UK;