Nutrient Requirements of Domesticated Ruminants

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Nutrient Requirements of Domesticated Ruminants

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Check copyright status Cite this Title Nutrient requirements of domesticated ruminants. Also Titled Feeding standards for Australian livestock: Other Authors Freer, M. Physical Description xxiii, p. Subjects Animal feeding -- Feeding and feeds -- Australia. Animal nutrition -- Requirements -- Australia. Livestock -- Feeding and feeds -- Australia. Ruminants -- Nutrition -- Requirements -- Australia. Livestock -- Nutrition -- Requirements -- Australia. Ruminants -- Feeding and feeds -- Australia.

Ruminants--nutrition--requirements--australia Livestock--nutrition--requirements--australia Ruminants--feeding and feeds--australia Livestock--feeding and feeds--australia Summary "Nutrient Requirements of Domesticated Ruminants draws on the most up-to-date research on the energy, protein, mineral, vitamin and water requirements of beef and dairy cattle, sheep and goats.

It defines the responses of animals, in weight change, milk production and wool growth, to quantitative and qualitative changes in their feed supply. It has particular application to grazing animals. Examples of the estimation of the energy and nutrients required for the different production systems are given, as well as the production expected from predicted feed intakes. The interactions between the grazing animal, the pasture and any supplementary feeds are complex, involving herbage availability, diet selection and substitution.

To facilitate the application of these recommendations to particular grazing situations, readers are directed to decision support tools and spreadsheet programs. The recommendations described are equally applicable to animals in feedlots or drought yards. Energy Energy values of feeds Energy requirements of the animal App. Derivation of the generalised equations 1.

Equations for the calculation of E[subscript cold] App. Main equations for predicting energy requirements 2. Protein The protein value of feeds Net protein requirements of the animal Dietary protein requirements Guidelines for the use of protein of NPN supplements App.

Recommended procedures for the estimation of the degradability of feed proteins by the artificial fibre bag in sacco method App. Main equations for predicting protein requirements 3. Water intake Sources of water Requirements 6. Prediction of feed intake Factors affecting intake Potential intake Relative intake Supplementary feeding Prediction of feed intake in practic 7.

Application Gastro-intestinal parasitism Frequency of feeding Feeding behaviour Concentrate: Notes Also available via the World Wide Web. Access Conditions Online full text access is restricted to licenced institutions. Technical Details Mode of access: Internet connectivity, World Wide Web browser.

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These 33 locations in All: Armidale War Memorial Library. Open to the public ; Wagga Wagga Campus Library. May not be open to the public ; Federation University Australia - Gippsland campus library. Open to the public.

La Trobe University Library. Borchardt Library, Melbourne Bundoora Campus. Th e interactions between the grazing animal, the pasture and any supplementary feeds are complex, involving herbage availability, diet selection and substitution. To facilitate the application of these recommendations to particular grazing situations, readers are directed to decision support tools and spreadsheet programs.

It provides comprehensive and useful information for graziers, livestock advisors, veterinarians, feed manufacturers and animal nutrition researchers. Th e recommendations described are equally applicable to animals in feedlots or drought yards.

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Except under the conditions described in the Australian Copyright Act and subsequent amendments, no part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, duplicating or otherwise, without the prior permission of the copyright owner. National Library of Australia Cataloguing-in-Publication entry Nutrient requirements of domesticated ruminants.

Ruminants — Nutrition — Requirements — Australia. Livestock — Nutrition — Requirements — Australia. Ruminants — Feeding and feeds — Australia. Livestock — Feeding and feeds — Australia.

Corbett as Convenor, was instructed to prepare a report on the implementation of feeding systems for ruminants, based on metabolizable energy and to develop corresponding standards for protein. In the 17 years since that report was published much new material on the nutrient requirements of ruminants has become available and the earlier publication is in need of revision. Although the Animal Production Committee no longer exists, a small editorial committee comprising M. Nolan, two of whom were members of the original subcommittee, has, with the agreement of CSIRO Publishing, attempted in this publication to bring the earlier report up to date.

Despite major changes to some sections of the earlier report, this publication remains very largely the work of John Corbett, the Convenor of the Ruminants Subcommittee. The aims of this report are still those set out in his original Foreword, which is reprinted below. For several years he had been working towards the preparation of a revised edition but unfortunately died before this could be achieved. It has been left to the current editorial committee to complete this aim.

The changes that have been made to the earlier text stem partly from more recent research in ruminant nutrition and partly from experience in applying the earlier recommendations.

What's new

The changes that have been made to GrazFeed to increase the accuracy of these estimates have now, in turn, been incorporated in the new recommendations for energy and protein. In the title of this edition we have moved away from the concept of Feeding Standards towards recommendations on nutrient requirements. There is also some risk of confusion with Australian Standards as they are applied to such topics as animal feeds and animal health. We believe that this is more useful than loading the text with large tables that can cover only a small proportion of the possible instances.

This report also includes a comprehensive index. I thank my co-editors for their work in coordinating this revision. Drafts for each chapter were prepared and submitted for refereeing and amendment by readers appropriate for each topic and we are sincerely grateful for their contributions to this report. Ternouth made major contributions to the revision of Chapter 3. The latter publication was undergoing extensive revision, and the ARC generously provided a pre-publication copy of the new edition ARC

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