Sustainable Control of Gastro-intestinal Nematodes in Small Ruminants

Project Overview

Project Type: Research and Education
Funds awarded in 2005: $250,000.00
Projected End Date: 12/31/2009
Region: Southern
State: Georgia
Principal Investigator:
Thomas Terrill
Fort Valley State University

Annual Reports


  • Agronomic: cotton, millet, rye, sorghum (milo), wheat, grass (misc. perennial), hay
  • Animals: goats, sheep


  • Animal Production: parasite control, feed/forage
  • Education and Training: extension, workshop
  • Pest Management: biological control
  • Production Systems: agroecosystems, holistic management


    Use of targeted deworming using the FAMACHA system to identify heavily parasitized sheep and goats greatly expanded over the last 4 years, with over 16,000 cards sold at producer workshops held in most of the states of the US, Puerto Rico, and the US Virgin Islands for on-farm use. Feeding of copper oxide wire particles (COWP) and grazing or feeding of dried sericea lespedeza were validated as highly effective novel anti-parasitic agents and have greatly increased in use by sheep and goat producers in the US, reducing their dependence upon chemical anthelmintics.

    Project objectives:

    1. Increase level of adoption of sustainable GIN control strategies recently implemented in the southeastern USA and PR by broadly disseminating state-of-the-art knowledge and procedures.
    2. Investigate use of novel non-chemical approaches for controlling GIN in small ruminants.
    3. Develop and test sustainable small ruminant parasite control systems integrating conventional and novel GIN control strategies, conduct cost-benefit analyses, and assess the sustainability of these systems

    Any opinions, findings, conclusions, or recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the view of the U.S. Department of Agriculture or SARE.