Genetic Improvement of Hair Sheep in the Tropics PDF Download
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Author: Raoul W. Ponzoni Publisher: Food & Agriculture Organization of the UN (FAO) ISBN: Category : Business & Economics Languages : en Pages : 184
Book Description
Planning and organisation pf improvement programmes; Definition of the breeding objective; Genetic basis of sheep improvement programmes; Selection criteria; Performance recording, data processig and adjustment of records; Adjustment of records; Calculation, presentation and use of the information; Industry structure and dissemination of genetic gain; Populations size and genetic improvement; Techniques for increasing the rate of genetic gain; Final remarks: the future.
Author: Raoul W. Ponzoni Publisher: Food & Agriculture Organization of the UN (FAO) ISBN: Category : Business & Economics Languages : en Pages : 184
Book Description
Planning and organisation pf improvement programmes; Definition of the breeding objective; Genetic basis of sheep improvement programmes; Selection criteria; Performance recording, data processig and adjustment of records; Adjustment of records; Calculation, presentation and use of the information; Industry structure and dissemination of genetic gain; Populations size and genetic improvement; Techniques for increasing the rate of genetic gain; Final remarks: the future.
Author: H. A. Fitzhugh Publisher: CRC Press ISBN: 0429724896 Category : Science Languages : en Pages : 344
Book Description
Perhaps less than 10 percent of the world's sheep have hair coats instead of wool fleeces, but as an animal resource, these sheep are important far out of proportion to their numbers. Hair coats provide an advantage in the face of the heat, humidity, and other stresses of the tropics. Small in body size, early to mature, and often highly prolific,
Author: Maurice Shelton Publisher: ISBN: Category : Hair sheep Languages : en Pages : 190
Book Description
The place and potential for sheep em tropical and subtropical regions; Available genetic resources: the origin and classification of the world's sheep; Improvement programs; Nutrient requirement of hair sheep in tropical and subtropical regions; Forage resources in northeast Brazil: their value and management; Supplemental feed resources and their utilization by hair sheep; Reproduction in sheep; Herd health management of sheep in the semiarid tropics; Facilities and installations for hair sheep production; Products and marketing; Tropical sheep production systems; Some suggestions for improved productivity through management; Recommendations for further research.
Author: M. H. Rajab Publisher: ISBN: Category : Languages : en Pages : 156
Book Description
The objectives of this study are: (1) to obtain estimates of genetical and environmental parameters for growth and reproduction characters of three tropical breeds of sheep Morada Nova, Brazilian Somali and Santa Ines; (2) to examine genotype by environmental interactions in order to optimally match these three genotypes with different environments by assessing the effect of different levels of nutrition on productivity of sheep in a semi-arid environment.
Author: Ian Lauder Mason Publisher: Food & Agriculture Organization of the UN (FAO) ISBN: Category : Technology & Engineering Languages : en Pages : 136
Author: Alan Blake Carles Publisher: Oxford University Press, USA ISBN: Category : Science Languages : en Pages : 242
Book Description
This book describes the major components of sheep production and ecology and reviews the "sheep environment," including aspects of climate, vegetation, disease, wildlife, and socioeconomic factors. The major breeds and types relevant to the tropics are described in terms of the main biological characteristics that affect productivity. Also examined are the techniques required in applying the principles of genetics, nutrition, disease prevention, and economics to sheep production systems.
Author: Ruth M. Gatenby Publisher: Wiley-Blackwell ISBN: 9780582404045 Category : Moutons - Régions tropicales Languages : en Pages : 351
Book Description
Ex-Libris. Usual Library Markings With No Underlining And Highlighting. Sheep Have Traditionally Formed An Important Part Of The Economy In Much Of The Tropics And Sub-Tropics, But It Is Only In Recent Years That Scientists Have Begun To Recognize Their True Value, Not Only For Their Ability To Convert Low Quality Vegetation Into Tangible Products Such As Meat, Wool, Milk, Skin, And Manure, But Also As A Capital Store In Societies Where Grazing Land Is Communally Owned And Banking Facilities Are Few And Unreliable. With The Increasing Awareness Of The Importance Of The Sheep, Development Projects Aimed At Improving The Standard Of Living Of The Rural Poor Are Now Focusing On Sheep Because, Unlike Larger Ruminants, Sheep Are Owned By The Poorer Sectors Of These Societies. Until Now There Has Been A Marked Gap In The Literature For A Textbook On Tropical Sheep Production For Agriculture And Veterinary Students. This Book Fills That Gap, Providing An Introduction To Breeds Of Sheep In The Tropics, Their Genetics And Environmental Physiology And Covering Such Important Topics As Management, Health, Nutrition, Feeding And Reproduction; Products And Systems Of Production; Products And Systems Of Production; Sociological And Economic Aspects Of Production; And Possible Improvements. The Book Also Contains A Glossary, A Substatial List Of Breed Names And Descriptions, And Over 1,000 References.
Author: Raoul W. Ponzoni
Author: Raoul W. Ponzoni
Author: H. A. Fitzhugh
Author: Maurice Shelton
Author: M. H. Rajab
Author: Mohammad Hasan Rajab
Author: C. Devendra
Author: Ian Lauder Mason
Author: Ian Lauder Mason
Author: Alan Blake Carles
Author: Ruth M. Gatenby