Atrazine contamination of sow feed and water affects the litter sex ratio and increases fetal mortality in Thailand

Nutthee Am-in; Roy N. Kirkwood; Wichai Tantasuparuk

doi:10.1139/cjas-2016-0008

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Nutthee Am-in,^1,* Roy N. Kirkwood,² Wichai Tantasuparuk¹

¹N. Am-in and W. Tantasuparuk. Faculty of Veterinary Science, Chulalongkorn University, Bangkok 10330
²R.N. Kirkwood. School of Animal and Veterinary Sciences, University of Adelaide, Roseworthy, SA 5371

^*Corresponding author: Nutthee Am-in (email: nutthee.a@chula.ac.th).

Abstract

Feed and water samples for 828 sows collected at weaning and weekly during gestation were assayed for atrazine content. Atrazine intake >3 µg d^-1 resulted in reduced litter size and increased female:male litter sex ratio (P < 0.05). Of 1483 mummified fetuses, the majority of them were male (2.5:1), and mortality primarily occurred in weeks 7 and 8.

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Citation Download Citation

Nutthee Am-in, Roy N. Kirkwood, and Wichai Tantasuparuk "Atrazine contamination of sow feed and water affects the litter sex ratio and increases fetal mortality in Thailand," Canadian Journal of Animal Science 97(2), 165-168, (28 October 2016). https://doi.org/10.1139/cjas-2016-0008

Received: 17 January 2016; Accepted: 1 October 2016; Published: 28 October 2016