Abstract
Previous studies have illustrated that different bioactive legume fodders containing condensed tannins might represent one of the options for integrated sustainable control of gastrointestinal nematodes (GIN) in ruminants, which may help address the worldwide development of resistance to synthetic anthelmintics. More recently, impetus has been given to assess the potential antiparasitic activity of less conventional resources, represented by different agro-industrial by-products (AIBPs). This review presents in vitro and in vivo results obtained with a range of tannin-containing AIBPs of various geographical and botanical origins, namely AIBP of nuts, temperate and tropical barks, carob, coffee and cocoa. They tend to confirm the “proof of concept” for their antiparasitic effects and also for other aspects of ruminant production in an agro-ecological context. Socio-economic aspects of the exploitation of such non-conventional resources are also discussed as potential models of the circular economy, by using waste. The different modes of use of these resources are presented in this review, as well as strengths, weaknesses, opportunities, and threats (SWOT) analyses to illustrate the advantages and limitations of on-farm use.
Highlights
Resume – Utilisation de sous-produits agro-industriels contenant des tanins pour le contrôle intégré des nématodes gastro-intestinaux chez les ruminants
The general objective of this review is to present a critical overview of the potential application of agro-industrial by-products (AIBPs) by focusing on tannin-containing resources and on their combined nutritional and health-promoting value as nutraceuticals, with potential AH activities against gastrointestinal nematodes (GIN) of ruminants
The selection of the different AIBPs for this review aimed first at illustrating the worldwide availability of tannincontaining by-products corresponding to the worldwide distribution of GIN in ruminants
Summary
Hervé Hoste1,*, Griselda Meza-OCampos, Sarah Marchand, Smaragda Sotiraki, Katerina Sarasti, Berit M. This review presents in vitro and in vivo results obtained with a range of tannin-containing AIBPs of various geographical and botanical origins, namely AIBP of nuts, temperate and tropical barks, carob, coffee and cocoa They tend to confirm the “proof of concept” for their antiparasitic effects and for other aspects of ruminant production in an agro-ecological context. The general objective of this review is to present a critical overview of the potential application of AIBPs by focusing on tannin-containing resources and on their combined nutritional and health-promoting value as nutraceuticals, with potential AH activities against GIN of ruminants. Besides their antiparasitic effects, utilising the bioactivity of AIBPs in an agro-ecological context could add wider value to ruminant production and nutrition These are discussed, as well as potential further implementation in other livestock species (pigs, horses, poultry, and rabbits) and parasites. An analysis of the strengths, weaknesses, opportunities and threats (SWOT) surrounding the application of AIBPs in this context is presented, against a wide range of criteria (e.g. availability, cost, competition with other industries, and other possible uses in animal health) for the AIBPs presented in this review
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