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Abstract
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Article Information:
Effects of Experimental Fasciola gigantica Infection on Serum Testosterone Profiles in Relationship to Semen Characteristics of Yankasa Ram
D. Iliyasu, N.P. Chiezey, J.S. Rwuaan, I.U. Ate, J.O. Ajanusi, O.O. Okubanjo and E.K. Bawa
Corresponding Author: D. Iliyasu
Submitted: March 02, 2014
Accepted: April 17, 2014
Published: October 20, 2014 |
Abstract:
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This study was designed to evaluate the effects of Fasciolosis on serum testosterone profiles and semen characteristics of Yankasa rams. Twelve, apparently healthy, Yankasa rams aged 18-24 months were randomly divided into two groups (infected group A and control group B) with seven and five rams, respectively. The rams werekept under intensive management in different pens throughout the study period. Group A rams were inoculated with 800 metacecariae orally and monitored for 12 weeks Post Infection (PI). Clinical signs were manifested 2 weeks PI. Faecal examination revealed Fasciola eggs at week 7 PI in group A. Three mL of blood were collected aseptically via the jugular vein at 30 min interval, weekly between 08:00-9:00am for serum testosterone assay. Testosterone assay was done using ELISA technique. There was significant decrease in testosterone concentration in group A at different time intervals of the weeks of post-infection. The semen analysis showed the lowest mean (±SEM) of semen volume, semen motility, semen concentration, of group A, as (0.01±0.0 mL), (3.6±2.4%), (16.1±4.2%) compared to group B with mean (±SEM) (1.6±0.1 mL), (93.0±1.2%), (440.0±13.0%) at week 7 post-infection, respectively. This study revealed that Fasciolosis has a great impact on sheep mainly by diminishing their reproductive efficiency and rendering infected rams infertile. It is concluded that F. gigantica infectionhad advanced effects on testosterone production and semen quality of Yankasa rams.
Key words: Electro ejaculator, semen characteristics and Yankasa ram, testosterone profiles, , , ,
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Cite this Reference:
D. Iliyasu, N.P. Chiezey, J.S. Rwuaan, I.U. Ate, J.O. Ajanusi, O.O. Okubanjo and E.K. Bawa , . Effects of Experimental Fasciola gigantica Infection on Serum Testosterone Profiles in Relationship to Semen Characteristics of Yankasa Ram. International Journal of Animal and Veterinary Advances, (5): 143-149.
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ISSN (Online): 2041-2908
ISSN (Print): 2041-2894 |
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