Alternatives to traditional anthelmintics to control gastrointestinal nematodes in grazing meat goats

• Jean-Marie Luginbuhl ^[1] ; Silvana Pietrosemoli ^[2] ; Jeanne M. Howell ^[3] ; Kevin L. Anderson ^[1]
  1. [1] North Carolina State University

     North Carolina State University

     Township of Raleigh, Estados Unidos

     
  2. [2] La Universidad del Zulia

     La Universidad del Zulia

     Venezuela

     
  3. [3] USDA, ARS Livestock Insects Research Laboratory, Kerrville, TX

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• Localización: Archivos Latinoamericanos de Producción Animal, ISSN 1022-1301, ISSN-e 1022-1301, Vol. 18, Nº. 3-4, 2010
• Idioma: inglés
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• Resumen

  • Studies were conducted to determine the efficacy of a commercial herbal dewormer (HDC, Studies 1 and 2) and a tanniferous perennial legume (Study 3) to reduce fecal egg counts (FEC) in grazing goats (Capra hircus). Goats grazed Festuca arundinacea (Study 1), Lolium multiflorum L. (Study 2), and Lespedeza cuneata or Tripsacum dactyloides (Study 3). In study 1, the eggs per gram (EPG) of feces from goats orally-drenched weekly with HDC decreased from 1,006 to 758 by Day 33, then stabilized at a mean of 740 EPG until the end of the trial (Day 103). Conversely, FEC of goats drenched with ivomectin (IVO) decreased from 935 EPG to 163 EPG by Day 26, then steadily increased to 646 by Day 103. The EPG differed between IVO and HDC on Day 12, 19, 26, 33, 40 (P