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7049: CONVERSION OF A LAMB PRODUCTION SYSTEM TO ORGANIC FARMING: HOW TO MANAGE, FOR WHICH RESULTS?

Marc, Benoit; Hervé, Tournadre; Jean-Pierre, Dulphy; Jacques, Cabaret and Sophie, Prache (2005) CONVERSION OF A LAMB PRODUCTION SYSTEM TO ORGANIC FARMING: HOW TO MANAGE, FOR WHICH RESULTS?. Paper presented at ISOFAR.

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Summary

Two sheep flocks were managed organically (for two years from conversion onwards) under different lambing strategies (1 lambing/year vs. 3 lambings every two years). The second system was tested as there was a producer’s interest in high productivity that is a guarantee of good economic results in conventional. Reproduction, feeding, lamb production, carcass quality, health (particularly internal parasitism), economic return of the flock, grass production, and pasture biodiversity were evaluated. The lambs were bred under low therapeutic input. The economical advantage of increasing lambing frequency was not demonstrated, whereas this strategy complexified management and resulted in higher internal parasitic infection of the lambs, and finally showed a lower stability. There were difficulties in establishing a very high feed self-sufficiency in both systems, especially the more intensive system (4 points lower), due to harsh climatic conditions; following this five-year experiment, we are changing our strategy to provide nitrogen in the systems.

Document Language:English
Keywords:lamb, meat, parasitism, economics
Subject Areas: Animal husbandry > Production systems > Sheep and goats
Animal husbandry > Health and welfare
Research affiliation: France > INRA - Institut National de la Recherche Agronomique
International Conferences > ISOFAR conferences
Total budget (Euro):0
Orgprints ID Number:7049
Contact:BENOIT, Marc
Deposited On:02 February 2006
EPrint Type:Conference paper
Published?:Published
Peer Review Status:Peer-reviewed and accepted

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