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Safety and efficacy of BioWorma® (Duddingtonia flagrans NCIMB 30336) as a feed additive for all grazing animals
- Source :
- EFSA Journal, EFSA Journal, Vol 18, Iss 7, Pp n/a-n/a (2020)
- Publication Year :
- 2020
- Publisher :
- John Wiley and Sons Inc., 2020.
-
Abstract
- Following a request from the European Commission, the EFSA Panel on Additives and products or Substances used in Animal Feed (FEEDAP) was asked to deliver a scientific opinion on the safety and efficacy of BioWorma® (Duddingtonia flagrans NCIMB 30336) when used as a zootechnical feed additive for all grazing animals. Duddingtonia flagrans belongs to a group of nematophagous fungi that physically entrap nematodes through an adhesive hyphal net. The additive contains the fungus in the form of chlamydospores and is intended to control pathogenic nematodes on pasture, with subsequent benefits for grazing animals. No conclusions could be drawn on the safety for the target species due to lack of data. ■■■■■ As it is not possible to exclude the presence of secondary metabolites (other than flagranones) produced during fermentation and their potential carry‐over into animal products, safety for the consumer could not be established. The Panel concluded that the additive is not irritant to skin and eyes but is irritant to the respiratory tract and a respiratory sensitiser. No conclusion could be drawn on its skin sensitisation potential. Since D. flagrans is a naturally inhabiting soil organism of world‐wide distribution, the Panel considered that use of an additive based on this organism does not pose a risk for the environment under the intended conditions of use. The strain under application reduced the number of parasitic nematodes on pasture to the benefit of grazing animals when used at the recommended application rate of 3 × 104 chlamydospores/kg bodyweight and day.
- Subjects :
- safety
040301 veterinary sciences
Animal feed
Veterinary (miscellaneous)
Feed additive
efficacy
TP1-1185
Plant Science
Fungus
010501 environmental sciences
01 natural sciences
Microbiology
Pasture
Duddingtonia flagrans
0403 veterinary science
Toxicology
Grazing
TX341-641
European commission
eelworm
Organism
0105 earth and related environmental sciences
geography
geography.geographical_feature_category
biology
Nutrition. Foods and food supply
Chemical technology
04 agricultural and veterinary sciences
biology.organism_classification
grazing animals
Scientific Opinion
nematodes
Animal Science and Zoology
Parasitology
Food Science
Subjects
Details
- Language :
- English
- ISSN :
- 18314732
- Volume :
- 18
- Issue :
- 7
- Database :
- OpenAIRE
- Journal :
- EFSA Journal
- Accession number :
- edsair.doi.dedup.....9a18ab46391798fb492eaf8264cddd36