caa a22 4500 445340169 CHVBK 20180317142809.0 cr unu---uuuuu 170323e20110901xx s 000 0 eng 10.1007/s00436-011-2302-y doi (NATIONALLICENCE)springer-10.1007/s00436-011-2302-y Efficacy of an energy block containing Duddingtonia flagrans in the control of gastrointestinal nematodes of sheep [Elektronische Daten] [María Sagüés, Luis Fusé, Alicia Fernández, Lucía Iglesias, Fabiana Moreno, Carlos Saumell] The efficacy of the nematode-trapping fungus Duddingtonia flagrans incorporated into an energy block was evaluated for the control of gastrointestinal nematodes in sheep. Four naturally parasitised sheep with average nematode egg counts of 2,470 eggs per gram grazed by pairs on two similar parasite-free paddocks for 30days. During that period, one pair of sheep (treated animals, T1) received an energy block containing chlamydospores of D. flagrans at a dose of 200,000 chlamydopores/kg bw/day, while the second pair (control animals, C1) received a fungus-free energy block. The animals in both groups were taken off the paddocks after contaminating the pastures for a month with either nematode eggs plus fungal chlamydospores (T1) or nematode eggs alone (C1). Twelve parasite-free sheep were divided into two groups of six animals each, the treated group (T2) was placed on the paddock previously contaminated with parasites and fungus, while the control group (C2) was placed on the parasite-only paddock. These two groups grazed on their respective paddocks during 30days and were then housed for 15days, after which period they were slaughtered in order to determine the parasite burden present in each animal. Results showed that animals in group T2 harboured significantly less nematodes than their counterpart in group C2. The efficacy of D. flagrans was 92% against the total parasite burden, 100% against Haemonchus contortus and Teladorsagia circumcincta, 89.9% against Trichostrongylus colubriformis, 87.5% against Cooperia onchopora, and 90% against Trichostrongylus axei. No efficacy was detected against Nematodirus spathiger, Trichuris ovis and T. skrjabini. Springer-Verlag, 2011 Sagüés María Área de Parasitología y Enfermedades Parasitarias, Departamento de Sanidad Animal y Medicina Preventiva, Universidad Nacional del Centro, Campus Universitario, B7000GHG, Tandil, Argentina aut Fusé Luis Área de Parasitología y Enfermedades Parasitarias, Departamento de Sanidad Animal y Medicina Preventiva, Universidad Nacional del Centro, Campus Universitario, B7000GHG, Tandil, Argentina aut Fernández Alicia BioNem Research Centre, 44 Kipling Ave, N1H 8C2, Guelph, ON, Canada aut Iglesias Lucía Área de Parasitología y Enfermedades Parasitarias, Departamento de Sanidad Animal y Medicina Preventiva, Universidad Nacional del Centro, Campus Universitario, B7000GHG, Tandil, Argentina aut Moreno Fabiana Instituto Nacional de Tecnología Agropecuaria (INTA), Balcarce, Argentina aut Saumell Carlos Área de Parasitología y Enfermedades Parasitarias, Departamento de Sanidad Animal y Medicina Preventiva, Universidad Nacional del Centro, Campus Universitario, B7000GHG, Tandil, Argentina aut Parasitology Research Springer-Verlag 109/3(2011-09-01), 707-713 0932-0113 109:3<707 2011 109 436 https://doi.org/10.1007/s00436-011-2302-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00436-011-2302-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Sagüés María Área de Parasitología y Enfermedades Parasitarias, Departamento de Sanidad Animal y Medicina Preventiva, Universidad Nacional del Centro, Campus Universitario, B7000GHG, Tandil, Argentina aut NATIONALLICENCE 700 1- Fusé Luis Área de Parasitología y Enfermedades Parasitarias, Departamento de Sanidad Animal y Medicina Preventiva, Universidad Nacional del Centro, Campus Universitario, B7000GHG, Tandil, Argentina aut NATIONALLICENCE 700 1- Fernández Alicia BioNem Research Centre, 44 Kipling Ave, N1H 8C2, Guelph, ON, Canada aut NATIONALLICENCE 700 1- Iglesias Lucía Área de Parasitología y Enfermedades Parasitarias, Departamento de Sanidad Animal y Medicina Preventiva, Universidad Nacional del Centro, Campus Universitario, B7000GHG, Tandil, Argentina aut NATIONALLICENCE 700 1- Moreno Fabiana Instituto Nacional de Tecnología Agropecuaria (INTA), Balcarce, Argentina aut NATIONALLICENCE 700 1- Saumell Carlos Área de Parasitología y Enfermedades Parasitarias, Departamento de Sanidad Animal y Medicina Preventiva, Universidad Nacional del Centro, Campus Universitario, B7000GHG, Tandil, Argentina aut NATIONALLICENCE 773 0- Parasitology Research Springer-Verlag 109/3(2011-09-01), 707-713 0932-0113 109:3<707 2011 109 436 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer