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Does exposure to di(2-ethylhexyl) phthalate in pre-pubertal boars affect semen quality post-puberty?
Swedish University of Agriculture Science, Sweden; .
Swedish University of Agriculture Science, Sweden; .
Swedish University of Agriculture Science, Sweden; .
Swedish University of Agriculture Science, Sweden; .
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2006 (English)In: International Journal of Andrology, ISSN 0105-6263, E-ISSN 1365-2605, Vol. 29, no 5, 534-542 p.Article in journal (Refereed) Published
Abstract [en]

Di(2-ethylhexyl) phthalate (DEHP), a plastic softener used in polyvinyl chloride (PVC) products, has been ascribed to have toxic effects on animal reproduction. The present study aimed at determining potential late effects of pre-pubertal oral exposure to DEHP on semen quality in young pigs. Ten pairs of cross-bred male siblings were used. One brother in each pair became, at random, the test animal while the other acted as control. Test males were exposed to 300 mg/kg body weight (bw) of DEHP administered orally three times a week from 3 to 7 weeks of age. The control group was given placebo (water). Semen analyses started when the boars reached 6 months of age, with semen collected twice weekly, until animals were 9 months of age. Semen was evaluated for ejaculate volume, sperm concentration, total sperm count, sperm motility, sperm morphology (including presence of cells other than spermatozoa) and sperm plasma membrane integrity. Total sperm motility tended to be lower while local motility was higher in the DEHP-exposed group compared with controls (p = 0.07) when assessed by computer-assisted sperm analysis. The DEHP-exposed group had a significantly (p less than 0.05) lower percentage of spermatozoa with tailless, defective heads (at 7-8 months of age) and double-folded tails (at 6-7, 7-8 and 6-9 months of age), compared with controls (albeit always under 5%). In summary, there were no obvious adverse effects of early oral exposure to 300 mg/kg bw of DEHP on sperm output and sperm quality in post-pubertal young boars.

Place, publisher, year, edition, pages
Wiley-Blackwell , 2006. Vol. 29, no 5, 534-542 p.
Keyword [en]
boar; di(2-ethylhexyl) phthalate; male reproduction; phthalates; semen quality
National Category
Engineering and Technology
URN: urn:nbn:se:liu:diva-101794DOI: 10.1111/j.1365-2605.2006.00693.xISI: 000240318600006OAI: diva2:666799
Available from: 2013-11-24 Created: 2013-11-22 Last updated: 2015-03-12

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Rodriguez-Martinez, Heriberto
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ReferencesLink to record
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