Cattle Genetic Resources

About this book

Covers genetic adaptations for particular husbandry conditions of cattle.

Contents

General Preface. Preface to Volume B7. 1. International Administration and Coordination of Efforts to Conserve and Effectively Utilize Cattle and Water Buffalo Genetic Resources (R.W. Philips). Man's dependence upon the genetic resources of domesticated plants and animals. Need for effective animal genetic resource management at the local, national and international levels. Roles of educational and research institutions. Roles of international organizations. 2. Modern Needs for Different Genetic Types (J.D. Turton). The effect of environmental stress on productivity. Bos indicus versus Bos taurus cattle. Genotype - environment interaction. The role of the buffalo in animal production. Resistance to diseases or parasites. Crossbreeding and heterosis. Major genes. Double-muscling. Composition of animal products. Small populations - their vulnerability to extinction. Finale. 3. Domestication: A Forward Step in Civilization (W.J.A. Payne). The origin of cattle and buffaloes. Dispersal of cattle from centres of domestication. Dispersal of buffaloes from centres of domestication. Present distribution of cattle and buffaloes. Possible future change in cattle and buffalo populations. 4. Cattle Genetic Resources of West Africa (P. Lhoste). Cattle numbers. Principal cattle genetic types. Genetic improvement in traditional cattle breeding. Genetic improvement through the introduction of foreign breeds. 5. Special Regional Problems of Breeding Resources - Latin American and Caribbean Examples (J.v. Wilkins). Criollo cattle of Latin American. Criollo cattle and milk production. Criollo cattle for beef production. Criollo cattle in the Andes. Special problems associated with breeding for milk production in the Andes. Milk production in the semi-tropical and tropical zones. Beef breeding in semi-tropical and tropical zones. Cattle for work. Buffaloes in Latin America an

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