Nutrition of Grazing Ruminants in Warm Climates

1st Edition

Series Volume Editors: Lee McDowell
Series Editors: Tony Cunha
Hardcover ISBN: 9780124833708
eBook ISBN: 9780323138871
Imprint: Academic Press
Published Date: 14th November 1985
Page Count: 443
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Table of Contents


Contributors


Foreword


Preface


1 The Role of Ruminants in Warm Climates


1. Introduction


II. What Are the Ruminants?


III. Contributions of Domestic Ruminants to Human Welfare


IV. Improving the Efficiency of Tropical Ruminants


References


2 Nutrient Requirements of Ruminants


I. General Requirements


II. Energy-Protein Requirements


III. Factors Influencing Mineral Requirements


IV. Nutritional Relationships to Diseases and Parasites


V. Environment and Stress


VI. Nonnutrient Factors Affecting Requirements


References


3 Water Requirements for Grazing Ruminants and Water as a Source of Minerals


I. Introduction


11. Water Turnover in Ruminants


III. Voluntary Intake of Water


IV. Effect of Dry Matter Intake on Water Consumption


V. Effect of Water Deprivation on Feed Intake and Utilization


VI. Effect of Temperature on Water Intake and Digestibility of Nutrients


VII. Effect of Salinity on Water Consumption


VIII. Water and Electrolyte Metabolism


IX. Nutrient Elements in Water


X. Toxic Elements and Substances in Drinking Water


XI. Summary


References


4 Thermal Stress as a Factor Associated with Nutrient Requirements and Interrelationships


I. Introduction


II. Physiological Responses of Ruminants to Thermal Stress


III. Metabolic and Hormonal Responses to Thermal Stress


IV. Effects of Thermal Stress on Nutrient Requirements


References


5 Forages for Grazing Systems in Warm Climates


I. Introduction


II. Selected Warm-Climate Perennial Grass Types


III. Selected Warm-Climate Perennial Le


Description

@from:From the Preface The objective of this book is to review the basic knowledge and methodology of feeding grazing ruminants in tropical and semitropical countries. It is hoped this information will be of use to farmers, research specialists, teachers, students, extension specialists, feed manufacturers, and others throughout the world concerned with the nutrition of grazing ruminants. A unique feature is the identification of nutritional limitations of grazing ruminants in the tropics, which will be beneficial for increasing animal production efficiency through the application of improved nutrition. A large number of photographs illustrate nutritional deficiencies and conditions in tropical countries. This book contains 18 chapters concerned with the nutrition of grazing ruminants. The first chapter deals with the contributions, locations, and various types of ruminants and their importance to human welfare in the tropics and subtropics. Chapters 2 - 4 progress through nutrient requirements of grazing ruminants in warm climates, the effects of tropical heat on these requirements, and water requirements for ruminant species. Chapters 5 - 7 discuss grass and legume forage species suitable for tropical regions, pasture management procedures, and energy-protein supplementation programs needed during the extensive dry periods. The importance of tropical forages and soils toward meeting mineral requirements is discussed in Chapter 8. Chapters 9 -14 contain concise, up-to-date summaries of minerals emphasizing mineral status, incidence of mineral deficiencies and excesses in tropical regions, and benefits and methods of mineral supplementation for grazing ruminants are discussed in Chapters 15 - 17. Chapter 18 reviews vitamin nutrition considerations for ruminants consuming tropical forages.


Details

No. of pages:
443
Language:
English
Copyright:
© Academic Press 1985
Published:
Imprint:
Academic Press
eBook ISBN:
9780323138871
Hardcover ISBN:
9780124833708

About the Series Volume Editors

Lee McDowell Series Volume Editor

Dr. Lee R. McDowell is a distinguished scientist in animal nutrition. He is also editor on Nutrition of Grazing Ruminants in Warm Climates (Academic Press, 1985). For the past 23 years, he has been working on animal nutrition studies at the University of Florida and with numerous collaborating animal scientists in Latin America, Africa, Asia, and other areas. He has lectured throughout the world and has collected research data, photographs, and other materials of value for this book. Contact with many of the world’s leading nutrition scientists has greatly enriched his expertise.

Affiliations and Expertise

University of Florida, Gainesville, U.S.A.

About the Series Editors

Tony Cunha Series Editor

Affiliations and Expertise

University of Florida, Gainesville, Florida, U.S.A. and California State Polytechnic University, Pomona, California, U.S.A.