Nouvelle déclaration d'incident
No de la demande: 2022-4250
Numéro de référence du titulaire d'homologation: M-161494-01-1
Nom du titulaire (nom légal complet, aucune abbréviation): Bayer CropScience Inc.
Adresse: Suite 200, 160 Quarry Park Boulevard SE
Ville: CALGARY
État: AB
Pays: Canada
Code postal /Zip: T2C 3G3
Étude scientifique
ARLA No d'homologation 20364 ARLA No de la demande d'homologation EPA No d'homologation.
Nom du produit: ETHOFUMESATE TECHNICAL HERBICIDE
Inconnu
Inconnu
Titre Ethofumesate: Dietary rat general reproductive performance dose ranging study
Date 09-MAR-89
Non
Nouveau danger pour la santé ou pour l'environnement
In a dose range finding reproduction study, groups of six male and six female rats (FO generation) of the OFA-SD (IOPS Caw) strain were dosed via the diet with ethofumesate at levels of 0, 3750, 7500, 15000, and 30000/50000 ppm, corresponding to up to 3458/6345 mg/kg/day in males/females. At top dose, 4/6 females died or were sacrificed during lactation. These animals exhibited reduced body weight gain/food consumption and had adverse clinical observations including hunched posture, lethargy, piloerection, and emaciation. Two of these animals exhibited thoracic hemorrhage and one had gastrointestinal tract lesions. The high dose resulted in reduced pup survival during lactation and reduced pub body weights. Pups in this group were small, lethargic, and hypothermic.
Non
These observations in pups occurred at the highest tested dose at which there was significant maternal toxicity. These findings are not anticipated to set the point of departure for human health risk assessment owing to the high doses at which adverse effects were noted.