Journal of Cell and Animal Biology
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Article Number - 2522AF364133

Vol.11(1), pp. 1-6 , April 2017
ISSN: 1996-0867

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Full Length Research Paper

Specific sperm abnormalities observed in rams (Ovis aries) following cypermethrin treatment

Ubah Simon Azubuike*
  • Ubah Simon Azubuike*
  • Department of Theriogenology and Production, Faculty of Veterinary Medicine, Ahmadu Bello University Zaria, Kaduna, Kaduna State, Nigeria.
  • Google Scholar
Ogwu David
  • Ogwu David
  • Department of Theriogenology and Production, Faculty of Veterinary Medicine, Ahmadu Bello University Zaria, Kaduna, Kaduna State, Nigeria.
  • Google Scholar
Rekwot Peter Ibrahim
  • Rekwot Peter Ibrahim
  • Artificial Insemination Unit, National Animal Production Research Institute, Shika, Zaria, Kaduna, Kaduna State, Nigeria.
  • Google Scholar
Rwuaan Joseph Sankey
  • Rwuaan Joseph Sankey
  • Department of Theriogenology and Production, Faculty of Veterinary Medicine, Ahmadu Bello University Zaria, Kaduna, Kaduna State, Nigeria.
  • Google Scholar

 Received: 31 January 2017  Accepted: 12 March 2017  Published: 30 April 2017

Copyright © 2017 Author(s) retain the copyright of this article.
This article is published under the terms of the Creative Commons Attribution License 4.0

This work was designed to make further observations on the specific types of sperm abnormalities present in Cypermethrin treated rams and contribute information towards understanding how Cypermethrin affects male’s reproduction. Sixteen sexually-mature, healthy Yankasa rams aged 18 to 30 months and weighing between 21.5 to 46.5 kg were used. The 16 rams were divided equally into two groups (A and B). Group A served as the treatment group, while B served as the control. The rams in Group A were given Cypermethrin (3%) at the dose rate of 3 mg/kg (0.1 ml/kg) body weight, topically as pour-on. The control rams were given distilled water at the same dose rate and route. These treatments were repeated every two weeks for a period of 12 weeks. Semen was collected on weekly basis from each ram during the experimental period by means of a hand held electro-ejaculator (EE). The morphological sperm abnormalities/defects were determined by examining semen smears stained with eosin-nigrosin on a glass slide. Results showed that sperm abnormalities recorded were detached head, mid piece droplet, free tail, coiled tail and bent tail.  There was no significant difference in the percentage of these abnormalities recorded between the two groups (p>0.05) from week 1 to 12. It is concluded that Cypermethrin did not induce any specific sperm abnormalities in rams treated with 3 mg/kg body weight as pour-on. Sperm death in Cypermethrin label dose treated rams may be mediated through oxidative stress. It was recommended that more studies be directed towards stress biomarkers in Cypermethrin treated rams.

Key words: Sperm, abnormalities, cypermethrin, rams, oxidative stress.

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APA Ubah, S. A., Ogwu, D., Rekwot, P. I., & Rwuaan, J. S. (2017). Specific sperm abnormalities observed in rams (Ovis aries) following cypermethrin treatment. Journal of Cell and Animal Biology, 11(1), 1-6.
Chicago Ubah Simon Azubuike, Ogwu David, Rekwot Peter Ibrahim and Rwuaan Joseph Sankey. "Specific sperm abnormalities observed in rams (Ovis aries) following cypermethrin treatment." Journal of Cell and Animal Biology 11, no. 1 (2017): 1-6.
MLA Ubah Simon Azubuike, et al. "Specific sperm abnormalities observed in rams (Ovis aries) following cypermethrin treatment." Journal of Cell and Animal Biology 11.1 (2017): 1-6.

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