<abstract xmlns="http://www.w3.org/1999/xhtml"><p> The objective of the study was to determine the effect of T. congolense on the sperm morphology of Yankasa rams (YKR). Nine YKR aged 24-30 months-old were assigned into two groups of 6 infected and 3 uninfected control and were monitored for 7 weeks. The infected group of YKR was each inoculated with 1 × 106 T. congolense through the jugular vein, while the control group remained uninfected. The entire infected group developed trypanosomosis post infection (pi) characterized by sperm morphological abnormalities in the semen. There were significant (P&lt;0.001) increases in the mean percentage of acrosomal, head, middle piece and tail abnormalities. Proximal and distal droplets as well detached heads were also significantly (P&lt;0.001) increased post infection (pi). Acrosomal abnormalities, distal droplet and tail abnormalities increased from week 1 pi till the end of the study, while head abnormalities and detached heads increased from week 2 pi. Middle piece abnormalities and proximal droplets increased from week 3 and 4 pi till the end of the study respectively. The high incidence of morphological defects caused by T. congolense is capable of causing infertility from the first week pi thereby making the rams unfit for breeding at the end of the study.</p></abstract>

The objective of the study was to determine the effect of T. congolense on the sperm morphology of Yankasa rams (YKR). Nine YKR aged 24-30 months-old were assigned into two groups of 6 infected and 3 uninfected control and were monitored for 7 weeks. The infected group of YKR was each inoculated with 1 × 106 T. congolense through the jugular vein, while the control group remained uninfected. The entire infected group developed trypanosomosis post infection (pi) characterized by sperm morphological abnormalities in the semen. There were significant (P<0.001) increases in the mean percentage of acrosomal, head, middle piece and tail abnormalities. Proximal and distal droplets as well detached heads were also significantly (P<0.001) increased post infection (pi). Acrosomal abnormalities, distal droplet and tail abnormalities increased from week 1 pi till the end of the study, while head abnormalities and detached heads increased from week 2 pi. Middle piece abnormalities and proximal droplets increased from week 3 and 4 pi till the end of the study respectively. The high incidence of morphological defects caused by T. congolense is capable of causing infertility from the first week pi thereby making the rams unfit for breeding at the end of the study.

Effects of Experimental Trypanosoma Congolense Infection on Sperm Morphology in Yankasa Rams

Department of Veterinary Parasitology and Entomology, Faculty of Veterinary Medicine, Ahmadu Bello University, Zaria-Nigeria

Department of Veterinary Public Health and Reproduction, College of Veterinary Medicine, Federal University of Agriculture, Abeokuta-Nigeria

Department of Theriogenology and Animal Production, Faculty of Veterinary Medicine, Usmanu Danfodiyo University, Sokoto-Nigeria

Macedonian Veterinary Review

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

The objective of the study was to determine the effect of T. congolense on the sperm morphology of Yankasa rams (YKR). Nine YKR aged 24-30 months-old were...

Effects of Experimental Trypanosoma Congolense Infection on Sperm Morphology in Yankasa Rams

Data publikacji: 18 lis 2015

Zakres stron: 203 - 208

Otrzymano: 29 kwi 2015

Przyjęty: 13 lip 2015

DOI: https://doi.org/10.14432/j.macvetrev.2015.07.050

Słowa kluczowe
infertility, sperm abnormalities, spermatogenesis, Trypanosoma congolense, Yankasa rams

© 2015

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Effects of Experimental Trypanosoma Congolense Infection on Sperm Morphology in Yankasa Rams

Data publikacji: 18 lis 2015

Zakres stron: 203 - 208

Otrzymano: 29 kwi 2015

Przyjęty: 13 lip 2015

DOI: https://doi.org/10.14432/j.macvetrev.2015.07.050

Słowa kluczoweinfertility, sperm abnormalities, spermatogenesis, Trypanosoma congolense, Yankasa rams

© 2015

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Słowa kluczowe
infertility, sperm abnormalities, spermatogenesis, Trypanosoma congolense, Yankasa rams