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Titre du Document
Methods for improving the nutritive value of fibrous feed : treatment and supplementation
Once harvested and stored it is important to optimize the use of poor quality roughages (PQR) by ruminants. This can be done through treatments, that improve the quality of the roughage per se and through appropriate supplementation and feeding techniques, whether the PQR is treated or not. A tremendous amount of work has been done over the last twenty years at both research and development level. This paper recalls the basic principles and the main technologies available for optimizing the digestive use of poor quality roughages. It also discusses and tries to highlight the advantages and drawbacks of transferring them in practice, with particular emphasis on urea treatment and multinutritional blocks. Two main steps should be considered: (a) feeding the microorganisms of the rumen in such a way that the growth and activity of cellulolytic strains are favoured. This is achieved either by a so called catalytic supplementation or by a treatment and (b) feeding the host animal the necessary nutrients that would ensure a satisfactory nutritional status (including its intake capacity which is generally low with such a type of basal diet) to meet its production requirements. Provided some key rules, described in the paper, are observed, the «urea treatment» is technically perfectly adapted to small production units, at both the individual and the cooperative level. Much practical field experience has been acquired now in an extremely wide range of agro-ecological and sociologica
EDP Sciences
Type du document
Conférence : Use of forage resources by ruminants in warm climate countries. Satellite symposium, Montpellier, FRA, 1995-09-07
Annales de zootechnie A. 1996, vol. 45, SUP1, pp. 89-103 [bibl. : 2 p.3/4]
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