Dairy-cattle production

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書誌事項

Dairy-cattle production

edited by H.O. Gravert

（World animal science, C . Production-system approach ; 3）

Elsevier Science Publishers , Distributors for the U.S. and Canada, Elsevier Science Pub. Co., 1987

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注記

Includes bibliographical references and index

内容説明・目次

内容説明

Dairy cattle is the main producer of animal protein for the nutrition of the world's population. For farmers, peasants and nomads it is one of the fundamental sources of income and subsistence. This volume covers the world distribution of dairy cattle; breeding and feeding as the basis of milk production; milk composition and sanitary and health aspects from the nutritional view point; and management of dairy herds and dairy cattle in the tropics as milk production systems. Illustrations and figures, tables and main references are included for each chapter. Related information on the domestication of dairy cattle can be found in World Animal Science Vol. A1, on production systems in Vol. A2, on physiology of milk production in Vol. A3, on animal genetics in Vol. A4, on ethology and behaviour in Vol. A5, and on grassland production in Vol. B1. The volume is intended for teachers of dairy husbandry and graduate students, scientists, and officers and advisors working in the field of dairy cattle and milk production.

目次

  • The Basis of Milk Production. 1. World Distribution (A. Horn). Total cattle numbers and influencing factors. Breed distribution, limitations and international movement. Milk sold. Role of milk production in the world's food economy. References. 2. Breeding of Dairy Cattle (H.O. Gravert). Origin and breeds of dairy cattle. Goals for selection
  • recording for these goals. Implications of modern breeding methods on dairy cattle. Breeding programmes. 3. Feeding of Dairy Cattle (J.B. Owen). Ruminant nutrition in relation to milk production. Nutrient specification for the dairy cow diet. Feeds commonly used for milk production. Feed preparation and control. Feed input in relation to milk output. Grazing dairy cattle. Milk as a Food. 4. Composition of Milk (W. Kaufmann, H. Hagemeister). General factors influencing the composition of milk. Proteins in milk. Non-protein nitrogen (NPN). Factors affecting yield and content of protein in milk. Composition of milk lipids. Lactose. Vitamins. Minerals. 5. Sanitary and Health Aspects of Milk (W.H. Heeschen). Keeping quality of milk. Factors affecting keeping quality. General code of hygienic practice for the production of high-quality milk. Health hazards. Statutory and marketing requirements. Milk Production Systems. 6. Rearing Calves and Heifers (J.H.B. Roy, T. Smith). Calf rearing. Rearing dairy heifers beyond calfhood. 7. Cattle Production Systems in Practice (H.A. Jasiorowski, A.J. Quick). Definition and criteria. Constraints. Basic systems. Herd management and labour organization. 8. Cattle Breeding in the Tropics (O. Syrstad). Importance of cattle in the tropics. Types and breeds of tropical cattle. Methods for genetic improvement. List of Contributors - Biographical Notes. Subject Index.

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