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2004 - 274 p.

Towards better utilisation of non-conventional feed sources by sheep and goats in some African and Asian countries

Ben Salem H., Nefzaoui A., Makkar H.P.S.

Chronic feed deficits represent a major constraint to animal production in many developing countries. Expanding the feed resource base through utilisation of non conventional feed resources is a compelling task. These are still not well integrated into livestock feeding due to three reasons: (i) the unbalanced supply of nutrients; (ii) the presence of undesirable compounds; and (iii) the difficulties to store. Several technologies have been developed to overcome this problem. Ensiling conserves the feeding value of some agro-industrial by-products, but the adoption of this technique is still limited. Feed blocks are becoming popular as a balanced supplement for animals. Numerous multipurpose browse trees and shrubs have potential in agroforestry systems. It is possible to increase the nutritive value of tannin-rich browse with compounds such as polyethylene glycol. Additionally, tannins could be used advantageously to improve production, through reduction in protein degradation of many oil seed cakes-meals in the rumen.

Mots-clés    

CAPRIN, FOURRAGE, OVIN, RESIDU DE RECOLTE, SECTEUR AGROINDUSTRIEL, SOUS-PRODUIT

Citer cet article    

Ben Salem H., Nefzaoui A., Makkar H.P.S. Towards better utilisation of non-conventional feed sources by sheep and goats in some African and Asian countries. In : Ben Salem H. (ed.), Nefzaoui A. (ed.), Morand-Fehr P. (ed.). Nutrition and feeding strategies of sheep and goats under harsh climates . Zaragoza : CIHEAM, 2004. p. 177-187. (Options Méditerranéennes : Série A. Séminaires Méditerranéens; n. 59). 9. Seminar of the Sub-Network on Nutrition of the FAO-CIHEAM Inter-Regional Cooperative Research and Development Network on Sheep and Goats, 2001/11/08-10, Hammamet (Tunisia). http://om.ciheam.org/om/pdf/a59/04600026.pdf