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OJVRTM
Online Journal of Veterinary Research©
(Including Medical and Laboratory Research)
Established 1994
ISSN 1328-925X
Volume
29 (2): 114-119, 2025.
Cyhalothrin residues
and placenta transfer in goats.
Oliveira C, Vassilieff
VS, Vassilieff I.
Centro Toxicologia (CEATOX), Institute of Biosciences, UNESP, Botucatu, São Paulo, Brasil.
ABSTRACT
C. Oliveira, V S Vassilieff, I Vassilieff: Cyhalothrin residues and placenta transfer in goats,
Onl J Vet Res., 29 (2): 114-119, 2025., Residues and placental transfer of cyhalothrin were determined in pregnant and lactating goats
sprayed 28 mg twice over 6 to 7 weeks. 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 1st milking, 69% blood from offspring contained
residues, and 50 to 70% of suckled male offspring had blood residues for 35
days. These results show that lambda-cyhalothrin is
absorbed cutaneously and eliminated in colostrum and
milk; and residues in offspring before ingestion of colostrum, suggested placental
transfer.
Key
words: Residue, placental transfer, goat, lambda-cyhalothrin.
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