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New techniques in sheep production /
New Techniques in Sheep Production is an eight-part book that first reviews sheep production systems and scope for improvement. Subsequent chapter focuses on methods of increasing fecundity. Parts III and IV describe reproduction methods and genetic improvement techniques. Other chapters discuss bre...
| Clasificación: | Libro Electrónico |
|---|---|
| Otros Autores: | , |
| Formato: | Electrónico eBook |
| Idioma: | Inglés |
| Publicado: |
London ; Boston :
Butterworths,
1987.
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| Temas: | |
| Acceso en línea: | Texto completo |
Tabla de Contenidos:
- Front Cover; New Techniques in Sheep Production; Copyright Page; Preface; Table of Contents; Part I: Review of current sheep production systems and the scope for improvement; Chapter 1. Wool; Summary; Introduction; What does the wool buyer pay for?; Increasing fleece weight and improving wool quality; Fleece characteristics; Possibilities for change in Britain; References; Chapter 2. Meat; Summary; Introduction; Sheepmeat production in Britain; Current British systems of lamb production; Detailed results for lowland spring lambing flocks, 1985; Recent improvements
- Scope for further improvementsChapter 3. Milk; Summary; Introduction; Existing systems of sheep's milk production; Milk products; Scope for technical advance; The future; Part II: Methods of increasing fecundity; Chapter 4. Genetic variation in ovulation rate in sheep; Summary; Introduction; Ovulation rate; Embryo survival; Selection on ovulation rate; Discussion; References; Chapter 5. Increasing prolificacy of ewes by means of gonadotrophin therapy and treatment with Fecundin; Summary; Introduction; Superovulatory responses in Fecundin-treated ewes
- The use of Fecundin in out-of-season breedingOestrus synchronization and artificial insemination; References; Chapter 6. Frequent lambing systems; Summary; Introduction; Example of frequent lambing systems; CAMAL (Cornell Alternate Month Accelerated Lambing system); STAR system; Chapter 7. Advancement of puberty in male and female sheep; Summary; Introduction; Sexual maturation and the attainment of puberty in the sheep; Improved reproductive performance of ewe lambs; Improved reproductive performance of ram lambs; Conclusions; References; Part III: Reproduction methods
- Chapter 8. Embryo transferSummary; Introduction; Procedures for embryo transfer; Practical application; Conclusions; References; Chapter 9. Artificial insemination; Summary; Introduction; Some factors affecting fertility; Conclusions; References; Part IV: Genetic improvement techniques; Chapter 10. Genetic engineering, chromosome analysis and sex determination; Summary; Introduction; Genetic engineering; Chromosome analysis; Sex determination; General perspective; References; Chapter 11. Indirect selection; Summary; Introduction; General considerations; Growth and lean meat production
- ReproductionResistance to stress and disease; Development and application; Conclusions; References; Chapter 12. Carcass evaluation in sheep breeding programmes; Summary; Introduction; Prospects for genetic improvement in carcass composition; Requirements of in vivo assessment techniques; Techniques for in vivo assessment; Comparison of techniques; Conclusions; Acknowledgements; References; Part V: Breed development; Chapter 13. Formation of new breeds; Summary; Introduction; Stratification; Economic pressures since 1945; The need for new breeds; New breed development; Reference