Mise à jour d'une déclaration précédente
No de la demande: 2007-7268
Numéro de référence du titulaire d'homologation: 2007Oct Canada DCSA 2Gen
Nom du titulaire (nom légal complet, aucune abbréviation): Monsanto
Adresse: 800 North Lindbergh Blvd.
Ville: Saint Louis
État: Missouri
Pays: United States of America
Code postal /Zip: 63167
Étude scientifique
ARLA No d'homologation 27200 ARLA No de la demande d'homologation EPA No d'homologation.
Nom du produit: Rustler Herbicide
Inconnu
Inconnu
Titre A Dietary Two-Generation Reproductive Toxicity Study of MON 52708 in Rats
Date 02-OCT-07
Non
Augmentation du risque sanitaire ou environnemental
In a 2-generation reproduction study, DCSA was administered daily to three groups of 30 male and 30 female rats at dietary concentrations of 0, 50, 500, and 5000 ppm for approximately 70 days. The animals were then mated; impregnated females were then allowed to carry their offspring to term, after which they delivered first generation pups. Parental toxicity was observed in the 5000 ppm F0 animals. Findings were statistically significantly decreased absolute body weights, body weight gains, and food consumption in both males and females. Statistically significantly decreased food consumption was also noted in 500 ppm F0 males. The F1 pups appeared to be comparable at birth relative to sex ratio, body weight, and general appearance based on external evaluations. By the fourth day of lactation, some of the 5000 ppm F1 pups were observed as having "ventral abdominal area blackened." Additional findings in these pups included bodies that were cool to touch and pale. Many of these pups died or were sacrificed in extremis. By the end of the 21-day lactation period surviving 5000 ppm F1 pups had absolute body weights that were >50% reduced compared to controls. Pups at 500 ppm had moderate but statistically significantly decreased body weights compared to controls at the post-natal day 14 and 21 time points.
Non
31-AUG-08
Monsanto Company is currently evaluating the potential toxicity of 3,6-dichlorosalicylic acid (DCSA), which we believe to be an intermediate used in the manufacture of, and a known impurity in, as well as a plant and environmental metabolite of, the herbicide dicamba. Preliminary results from an incomplete study have come to our attention.