Skip to main content
[Translate to English:]
[Translate to English:]
Institute of

OF Organic Farming


Control of endoparasites by Duddingtonia flagrans

Data and Methods

Fecal Egg Count done by McMasterMethod with a sensitivity of 33 eggs per gram of fresh feces.
Body weight: Electronic livestock scale, ± 0.1 kg
Fecal cultures (3-5 animals pooled) for the quantitative determination of larvae and their differentiation
Larvae determination of pasture grass samples by method of Sievers Prekehr
Serumpepsinogen: tyrosine determined photometrically. Tracer: After rinsing, investigation of 10% aliquot by  a sieve with mesh size 100 µm
Statistics: Excel (C) Microsoft


In the year 2002, the goats of the control group showed after three months only at two times significantly higher mean fecal egg counts than the fungus fed group (p <0.05). In the sheep there were no significant differences. In control groups diseased individuals had to be treated more often with anthelmintics, as in the experimental groups (not significant). Maximum reduction of numbers of larvae in fecal cultures were 81.3% for sheep and 67.9% for goats (not significant). Species differentiation in fecal cultures showed that all expectable worm species were present and the feeding of D.flagrans - spores had no visible effect on the species distribution.
At the end of the grazing season the mean body weight gain of the fungus fed goats was higher than in the control group (1.7 kg, not significant) and as well in sheep (0.7 kg, not significant). Only the subgroup of firstseason grazing goats reached significant body weight differences (p <0.05). No significant differences were found at the pasture larvae. The evaluation of the results of the 8 traceranimals showed that the first group (turnout to pasture 1st of August) had greater number of pathogenic worms (Haemonchus contortus, Teladorsagia circumcincta) than the tracers with the late turnout (25.September). This was also clinically observed. Differences between experimental and control group tracers could not be determined because of the small number (n = 2).
The serum pepsinogen value, as an expression of abomasal damage done by worms, raised up to the end of August. The difference within the goatgroups was at this time significant.

The weather conditions (extreme high rainfall) may have influenced the in total disappointing results and have thus shown how sensitive this method seems to be against such parameters.
In 2003, the feeding of the spores could not prevent a sharp rise in the excretion of eggs during the grazing period and the contamination of the pasture was high. A deworming treatment in summer (during lactation!) could not be avoided.

Due to similar disappointing results in sheep determined by other research groups, and due to the fact that an EU proposal of the company for the recognition of D.flagrans spores as a permitted feed-additive was refused, Chr.Hansen Ltd. has stopped production of spores. No further experiments are planned.

Links and Downloads

  • Dissertation von C. Holst (2005, Tierärztliche Hochschule Hannover)

Involved external Thünen-Partners


9.2001 - 9.2004

More Information

Project status: finished


  1. 0

    Malama E, Hoffmann-Köhler P, Biedermann I, Koopmann R, Krücken J, Manuel JM, Marinez Moreno A, Samson-Himmelstjerna G von, Sotiraki S, Demeler J (2014) Development of a milk and serum ELISA test for the detection of Teladorsagia circumcincta antibodies in goats using experimentally and naturally infected animals. Parasitol Res 113(10):3651-3660, DOI:10.1007/s00436-014-4030-6

  2. 1

    Koopmann R, Dämmrich M, Ploeger H (2013) Entscheidungsbaum zur vorausschauenden Bekämpfung von Magen-Darm Würmern bei Wiederkäuern. In: Neuhoff D, Stumm C, Ziegler S, Rahmann G, Hamm U, Köpke U (eds) Beiträge zur 12. Wissenschaftstagung Ökologischer Landbau : Ideal und Wirklichkeit: Perspektiven ökologischer Landbewirtschaftung . Berlin: Köster, pp 474-475

  3. 2

    Biedermann I, Koopmann R, Samson-Himmelstjerna G von, Demeler J (2011) Entwicklung eines Serum- und Milch-ELISAs zum Nachweis der Infektion mit Magen-Darm-Strongyliden bei Ziegen. In: Leithold G, Becker K, Brock C (eds) Beiträge zur 11. Wissenschaftstagung Ökologischer Landbau : Es geht ums Ganze: Forschen im Dialog von Wissenschaft und Praxis : Bd. 2, Tierproduktion und Sozioökonomie. Berlin: Köster, pp 232-233

  4. 3

    Koopmann R (2010) Wie würde sich die Wurmbelastung der Weide verändern, wenn lediglich ein Teil der Ziegen- oder Schafherde entwurmt wird? Landbauforsch SH 335:21-30

  5. 4

    Epe C, Holst C, Koopmann R, Schnieder T, Larsen M, Samson-Himmelstjerna G von (2009) Experiences with Duddingtia flagrans administration to parasitized small ruminants. Veterinary Parasitol 159(1-2):86-90

  6. 5

    Rahmann G (2009) Ökologische Schaf- und Ziegenhaltung : 100 Fragen und Antworten für die Praxis. 2., überarb. Aufl. Braunschweig: FAL, 261 p

  7. 6

    Rahmann G, Koopmann R, Seip H (2008) Alternative strategies to prevent and control endoparasite diseases in goat farming. In: Proceedings of the 9th International Conference on Goats : "Sustainable Goat Production: Challenges and Opportunities of Small and Large Enterprises" ; Querétaro, México, August 31st - September 4th, 2008. p 266

  8. 7

    Epe C, Holst C, Koopmann R, Schnieder T, Larsen M, Samson-Himmelstjerna G von (2008) Investigation on the influence of nematophagous fungi as feed additive on nematode infection risk of sheep and goats on pasture. Landbauforsch 58(3):191-202

  9. 8

    Rahmann G, Seip H (2007) Alternative management strategies to prevent and control endo-parasite diseases in sheep and goat farming systems - a review of the recent scientific knowledge. Landbauforsch Völkenrode 57(2):193-206

  10. 9

    Rahmann G, Seip H (2007) Bioactive forage and phytotherapy to cure and control endo-parasite diseases in sheep and goat farming systems - a review of current scientific knowledge. Landbauforsch Völkenrode 57(3):285-295

  11. 10

    Koopmann R, Epe C (2007) Der Mikropilz Duddingtonia flagrans zur biologischen Bekämpfung von Magen-Darm-Nematoden der Nutztiere - Übersicht zu Feldstudien 1994-2006. In: Zikeli S, Claupein W, Dabbert S (eds) Beiträge zur 9. Wissenschaftstagung Ökologischer Landbau "Zwischen Tradition und Globalisierung" : Universität Hohenheim, 20.-23. März 2007 ; Bd. 2. Berlin: Köster, pp 673-676

  12. 11

    Barth K, Koopmann R (2005) Endoparasiten und Milchqualität bei Ziegen im Ökologischen Landbau. In: Heß J, Rahmann G (eds) Beiträge zur 8. Wissenschaftstagung Ökologischer Landbau "Ende der Nische" : Kassel, 1.-4. März 2005. Kassel: Kassel University Press, pp 407-408

  13. 12

    Koopmann R (2005) Neue Empfehlungen für die Behandlung bei Wiederkäuern : Resistente Magen-Darm-Würmer. Ökol Landbau 33(136):24-26

  14. 13

    Barth K, Koopmann R (2004) Parasitenbelastung und Milchqualität bei Schafen und Ziegen im ökologischen Landbau. In: Bundesforschungsanstalt für Landwirtschaft (ed) Ressortforschung für den ökologischen Landbau 2004 : Statusseminar 2004 ; 5. März 2004 Biologische Bundesanstalt für Land- und Forstwirtschaft (BBA), Kleinmachnow ; Tagungsreader. pp 28-29

  15. 14

    Koopmann R, Barth K (2004) The relationship between worm burden and milk quality in goats. In: Hovi M, Sundrum A (eds) Organic livestock farming : potential and limitations of husbandry practice to secure animal health and welfare and food quality : proceedings of the 2nd SAFO Workshop 25-27 March 2004, Witzenhausen, Germany. Reading: Univ, pp 77-86

  16. 15

    Koopmann R, Epe C (2003) Anthelmintika-Resistenz in der ökologischen Schafhaltung. Jahresber Bundesforschungsanst Landwirtsch Braunschweig Völkenrode 2002:164-165

  17. 16

    Koopmann R, Barth K, Holst C, Epe C, Samson-Himmelstjerna G von, Larsen M (2003) Biologische Kontrolle der Magen-Darm-Strongyliden bei Milchschafen und Milchziegen auf der Weide mittels Duddingtonia flagrans. Jahresber Bundesforschungsanst Landwirtsch Braunschweig Völkenrode 2002:161

  18. 17

    Koopmann R, Holst C (2003) Die "FAMACHA(TM) Eye-Colour-Chart" in einer Feldstudie mit Schafen und Ziegen in Norddeutschland. Tierärztl Praxis G 31:68

  19. 18

    Koopmann R, Holst C (2003) On-farm Untersuchung zum Zeitpunkt der Magen-Darm-Strongyliden(MDS)-Bekämpfung bei ökologisch gehaltenen Lämmern. Jahresber Bundesforschungsanst Landwirtsch Braunschweig Völkenrode 2002:165

    Scroll to top