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OJVRTM
Online Journal of Veterinary Research©
Volume 4: 51-57,
2000. Redacted 2018.
Residues and placental transfer of Lambda-Cyhalothrin in goats
Cristiane Oliveira MS, Vera Sílvia Vassilieff MS, PhD, Igor Vassilieff
MS, PhD
The Center for Toxicological
Assistance (CEATOX), Institute of Biosciences, UNESP, Botucatu, São Paulo, Brasil.
Correspondence to: I. Vassilieff and V.S. Vassilieff; CEATOX, IB,
UNESP, Caixa Postal 520, 18618-000 Botucatu-SP, Brasil. Fone: 021(14) 6802-6017; Fax:
021(14) 6822-1385, e-mail: vassilieff@laser.com.br
btjulio@zaz.com.br
ABSTRACT
Oliveira C, Vassilieff VS, Vassilieff
I., Residues and placental transfer of lambda-cyhalothrin
in goats. Onl J Vet Res., (4): 51-57, 2000. Residues and placental transfer of lambda-cyhalothrin were determined in pregnant and lactating goats
sprayed with two therapeutic 28 mg treatments (Grenade® L 2.8%) for a 6 to 7
week period. In pregnant goats, residues persisted for 35 days and were
detected in 50 to 70% blood and 60 to 70% of colostrum samples. In lactating
goats, residues were detected in 60 to 70% of blood and 60 to 80% of milk
samples. The pesticide was cleared by 42 days. Before the first milking, 69% of blood samples from offspring contained
residues, and 50 to 70% of suckled male offspring had residues in blood for 35
days. These results show that lambda-cyhalothrin is
absorbed cutaneously and eliminated in colostrum and
milk; the residues in offspring before ingestion of colostrum, demonstrated the
placental transfer of cyhalothrin.
Key words: Residue, placental transfer, goat,
lambda-cyhalothrin.
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