Nematode controlling effects and safety tests of Duddingtonia flagrans biological preparation in sheep

Abstract Duddingtonia flagrans is a nematode-trapping fungus that is widely used to control parasitic nematodes in livestock. After oral ingestion and passage through the digestive tract of animals, this microorganism captures nematodes in feces. Although many researchers have examined the safety of...

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Main Authors: Yuan Ma, Lili Jiang, Zhaobin Fan, Luyao Hao, Zhengyi Li, Yanni Zhang, Qiannan Li, Rui Wang, Hongliang Luo
Format: Article
Language:English
Published: Nature Portfolio 2025-01-01
Series:Scientific Reports
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Online Access:https://doi.org/10.1038/s41598-025-85844-z
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author Yuan Ma
Lili Jiang
Zhaobin Fan
Luyao Hao
Zhengyi Li
Yanni Zhang
Qiannan Li
Rui Wang
Hongliang Luo
author_facet Yuan Ma
Lili Jiang
Zhaobin Fan
Luyao Hao
Zhengyi Li
Yanni Zhang
Qiannan Li
Rui Wang
Hongliang Luo
author_sort Yuan Ma
collection DOAJ
description Abstract Duddingtonia flagrans is a nematode-trapping fungus that is widely used to control parasitic nematodes in livestock. After oral ingestion and passage through the digestive tract of animals, this microorganism captures nematodes in feces. Although many researchers have examined the safety of this fungus for humans, animals, and the environment, few reports have discussed the safety of nematode-trapping D. flagrans biologics for animals. In this study, D. flagrans safety was tested, while adverse effects and toxicities were examined in sheep. First, the nematode killing effects in naturally parasitized sheep after administration of lyophilized D. flagrans preparations were tested.lyophilized D. flagrans preparations were administered to sheep at various doses, followed by key blood factor monitoring and an examination of major tissues, organ lesions, and pathology. Lastly, lyophilized D. flagrans preparations were administered to sheep at various doses, followed by key blood factor monitoring and an examination of major tissues, organ lesions, and pathology. the nematode killing effects of naturally parasitized sheep after administration were tested. The results demonstrated that treatment with D. flagrans isolates significantly reduced developing larvae numbers in feces, with an efficiency of 92.99%. Lyophilized preparations had no observable effects on physiological parameters in sheep, thus indicating a wide safety range in target animals, with potentially minimal risks in veterinary clinical practice. Overall, D. flagrans freeze-dried biologics effectively helped to controlled parasitic infections, which are safe in animals like sheep, and thus may provide a practical platform for nematode-trapping fungi in veterinary clinical settings.
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spelling doaj-art-b2e0d4715dbd43c8ac91bb2700ff95522025-01-19T12:24:08ZengNature PortfolioScientific Reports2045-23222025-01-011511810.1038/s41598-025-85844-zNematode controlling effects and safety tests of Duddingtonia flagrans biological preparation in sheepYuan Ma0Lili Jiang1Zhaobin Fan2Luyao Hao3Zhengyi Li4Yanni Zhang5Qiannan Li6Rui Wang7Hongliang Luo8College of Veterinary Medicine, Inner Mongolia Agricultural UniversityCollege of Pharmacy Heze UniversityCollege of Pharmacy Heze UniversityCollege of Veterinary Medicine, Inner Mongolia Agricultural UniversityCollege of Veterinary Medicine, Inner Mongolia Agricultural UniversityCollege of Veterinary Medicine, Inner Mongolia Agricultural UniversityCollege of Veterinary Medicine, Inner Mongolia Agricultural UniversityCollege of Veterinary Medicine, Inner Mongolia Agricultural UniversityRui Pu Agricultural Technology Co., LtdAbstract Duddingtonia flagrans is a nematode-trapping fungus that is widely used to control parasitic nematodes in livestock. After oral ingestion and passage through the digestive tract of animals, this microorganism captures nematodes in feces. Although many researchers have examined the safety of this fungus for humans, animals, and the environment, few reports have discussed the safety of nematode-trapping D. flagrans biologics for animals. In this study, D. flagrans safety was tested, while adverse effects and toxicities were examined in sheep. First, the nematode killing effects in naturally parasitized sheep after administration of lyophilized D. flagrans preparations were tested.lyophilized D. flagrans preparations were administered to sheep at various doses, followed by key blood factor monitoring and an examination of major tissues, organ lesions, and pathology. Lastly, lyophilized D. flagrans preparations were administered to sheep at various doses, followed by key blood factor monitoring and an examination of major tissues, organ lesions, and pathology. the nematode killing effects of naturally parasitized sheep after administration were tested. The results demonstrated that treatment with D. flagrans isolates significantly reduced developing larvae numbers in feces, with an efficiency of 92.99%. Lyophilized preparations had no observable effects on physiological parameters in sheep, thus indicating a wide safety range in target animals, with potentially minimal risks in veterinary clinical practice. Overall, D. flagrans freeze-dried biologics effectively helped to controlled parasitic infections, which are safe in animals like sheep, and thus may provide a practical platform for nematode-trapping fungi in veterinary clinical settings.https://doi.org/10.1038/s41598-025-85844-zLyophilized biologicSafety profilesKilling effectsNematode-trapping fungi
spellingShingle Yuan Ma
Lili Jiang
Zhaobin Fan
Luyao Hao
Zhengyi Li
Yanni Zhang
Qiannan Li
Rui Wang
Hongliang Luo
Nematode controlling effects and safety tests of Duddingtonia flagrans biological preparation in sheep
Scientific Reports
Lyophilized biologic
Safety profiles
Killing effects
Nematode-trapping fungi
title Nematode controlling effects and safety tests of Duddingtonia flagrans biological preparation in sheep
title_full Nematode controlling effects and safety tests of Duddingtonia flagrans biological preparation in sheep
title_fullStr Nematode controlling effects and safety tests of Duddingtonia flagrans biological preparation in sheep
title_full_unstemmed Nematode controlling effects and safety tests of Duddingtonia flagrans biological preparation in sheep
title_short Nematode controlling effects and safety tests of Duddingtonia flagrans biological preparation in sheep
title_sort nematode controlling effects and safety tests of duddingtonia flagrans biological preparation in sheep
topic Lyophilized biologic
Safety profiles
Killing effects
Nematode-trapping fungi
url https://doi.org/10.1038/s41598-025-85844-z
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