Single and mixed interaction of experimental Trypanosoma brucei brucei and Trypanosoma evansi on the semen collection reaction time and spermatozoa morphology of Yankasa rams
Journal: Journal of Advanced Veterinary and Animal Research (Vol.3, No. 4)Publication Date: 2016-12-01
Authors : Yunusa A. Wada; Sonnie J. Oniye; Peter I. Rekwot; Oluyinka O. Okubanjo;
Page : 360-367
Keywords : Morphology; Reaction time; Semen; Sperm; Yankasa ram;
Abstract
Objective: This study was conducted to evaluate the pathological effects of experimental trypanosomosis on the semen collection reaction time and spermatozoa morphology of Yankasa rams. Materials and Methods: Twelve apparently healthy Yankasa rams aging 24-30 months and weighing 22-25 Kg were randomly selected and were distributed into four (4) groups. Groups I and II were challenged with experimental Trypanosoma brucei brucei (Federe strain) and T. evansi (Sokoto strain) respectively, while group III was challenged with both T. brucei brucei and T. evansi parasites. Group IV was left as uninfected control. Each infected ram received 2 mL of the infected blood containing 2x106 trypomastigotes via the jugular vein. The animals were examined for clinical observations, reaction time for semen collection and abnormalities in the morphology of the spermatozoa. Results: Infection of rams with trypanosomes showed scrotal edema, scrotal atrophy, loss of libido, increased semen collection reaction time, and significant increase of spermatozoa morphological abnormalities in all the infected rams. The rams especially in groups I and III were all deemed unfit for breeding by the end of the 98 days post infection, while the uninfected rams remained as healthy and had normal values of sperm morphology throughout the study period. Conclusion: Single or mixed interaction with T. brucei brucei or T. evansi is capable of causing infertility and reproductive failure in Yankasa rams.
Other Latest Articles
- Prevalence and antibiogram of Salmonella species isolated from poultry products in Ebonyi State, Nigeria
- A RARE COMPLICATION OF A COMMON DISEASE - ANTERIOR ABDOMINAL WALL ABSCESS DUE TO SPONTANEOUS RUPTURE OF GALL BLADDER
- Growth response and feed utilization of Clarias gariepinus (Burchell, 1822) juveniles fed graded levels of boiled Senna obtusifolia l. seed meal as a replacement for soybean meal
- Prevalence and risk factors associated with Dirofilaria immitis infection in dogs in Makurdi, Benue State, Nigeria
- Coinfections of Sudanese dairy cattle with bovine herpes virus 1, bovine viral diarrhea virus, bluetongue virus and bovine herpes virus 4 and their relation to reproductive disorders
Last modified: 2017-04-21 17:55:07