Evaluation of straws in ruminant feeding
This workshop is the third of a series under the project COST 84-bis "Use of lignocellulose containing by-products and other plant residues for animal feeding." The state of the art of available techniques for assessing the food value of a given straw is reviewed. Three topics were covered, in-vivo methods for measuring intake and digestibility, feeding trials with producing animals and methods of prediction of straw digestibility and intake. The workshop concluded that it would be useful if a restricted number of samples of treated and untreated straw could be held at a single location, available for use as reference material for other laboratories. Straw samples should be of one or two types e.g. spring barley/winter wheat and show a wide range of degradability. There should be sufficient sample material for five years. Straw used in feeding trials should then be accurately described. It was agreed that gross chemical analyses are of little value and their use should be discontinued. Biological methods based on cell-free enzymes, laboratory cultures of rumen micro-organisms or in-sacco methods provide a better evaluation of treated and untreated straw.
Bibliographic Reference: EUR 11471 EN (1989) 182 pp.
Availability: Available from Elsevier Science Publishers Ltd., Crown House, Linton Road, Barking, Essex IG11 8JU (GB)
ISBN: ISBN 1-85166-337-1
Record Number: 198910945 / Last updated on: 1994-12-01
Original language: en
Available languages: en