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Full Description
This collection features four peer-reviewed literature reviews on bone health in poultry.
The first chapter reviews the literature on genetic mapping of skeletal traits in both broilers and layers, including both the genetics of skeletal defects and bone quality. As the chapter shows, linkage mapping and genome-wide association studies have identified promising candidate genes with potential for breeding more robust birds.
The second chapter focuses on bacterial chondronecrosis with osteomyelitis (BCO), one of the most common causes of lameness in broilers. The chapter summarizes the pathogenesis of BCO and reviews the efficacy of probiotics as a prophylactic treatment.
The third chapter discusses bone health in laying hens. It reviews bone development, keel and other bone health problems and factors contributing to poor bone health. It also summarises key strategies for improving bone health, including breeding, nutrition, rearing practices and housing.
The final chapter assesses the problem of lameness in intensively-reared broiler flocks. The chapter also discusses skin health in broilers. It summarises key risk factors as well as ways of monitoring and reducing the problem, from breeding programmes and enrichment to sequential feeding regimes.
Contents
Chapter 1 - Genetics and genomics of skeletal traits in poultry species: Martin Johnsson, Swedish University of Agricultural Sciences, Sweden; 1 Introduction 2 Avian bone biology 3 Quantitative genetics of bone traits 4 Genetic mapping of bone traits 5 Measuring bone traits 6 Summary 7 Future trends in research 8 Acknowledgement 9 Where to look for further information 10 References
Chapter 2 - Leg disorders in poultry: bacterial chondronecrosis with osteomyelitis (BCO): Robert F. Wideman, Jr., University of Arkansas, USA; 1 Introduction 2 The pathogenesis of BCO 3 Understanding and treating BCO: the role of experimental models 4 Sources and routes of bacterial colonization 5 The role of probiotics 6 Summary and conclusions 7 Where to look for further information 8 References
Chapter 3 - Bone health and associated problems in layer hens: Christina Rufener, University of California-Davis, USA; and Michael J. Toscano, University of Bern, Switzerland; 1 Introduction 2 Bone development, growth and remodelling 3 Identified bone health problems 4 Contributory factors to poor bone health 5 Influence of poor bone health on productivity and welfare 6 Strategies for improving bone health 7 Future trends in research 8 Where to look for further information 9 References
Chapter 4 - Poultry health monitoring and management: bone and skin health in broilers: Gina Caplen, University of Bristol, UK; 1 Introduction 2 Leg disorders and lameness 3 Contact dermatitis 4 Conclusion and future trends 5 Where to look for further information 6 References
