The influence of semen collection frequency on the deleterious interaction between the enzymes of the bulbourethral gland and egg yolk during the dilution of buck semen
The study aimed to evaluate the influence of semen collection frequency at different protocols on deleterious the interaction between the enzymes of the bulbourethral gland and egg yolk during the dilution and of buck semen. Five bucks aged 2.5-3 years were included in this study. Four different...
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| Autores principales: | , |
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| Formato: | article |
| Lenguaje: | EN |
| Publicado: |
South Valley University
2021
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| Materias: | |
| Acceso en línea: | https://doaj.org/article/01f58dad77b7470da9e412aa10371076 |
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| Sumario: | The study aimed to evaluate the influence of semen collection frequency at different protocols
on deleterious the interaction between the enzymes of the bulbourethral gland and egg yolk during
the dilution and of buck semen. Five bucks aged 2.5-3 years were included in this study. Four different
protocols of semen collection frequency were applied; once a week, twice a week at an interval of
two days, thrice a week at an interval of one day, and twice daily at an interval of one hour. Buck
semen ejaculates were evaluated using computer assisted sperm analysis that includes the percentage
of motile sperm (MS), percentage of progressive motile sperm (PMS), velocity curvilinear (VCL),
velocity average path (VAP), velocity straight line (VSL), linearity (LIN), straightness (STR), wobble
(WOB), amplitude of lateral head movement (ALH), and beat cross frequency (BCF). Results showed
that sperm motility parameters had decreased significantly after dilution. Sperm motility parameters
(VCL, VSL, VAP and ALH) of the second ejaculate were higher significantly (P<0.05) after dilution,
when ejaculates collected twice and thrice a week and twice a day. Conversely, motility parameters
of third ejaculates were less than those of first and second ejaculates when ejaculates collected thrice
a week. In conclusion, there are effects of semen collection frequency on the ability of buck semen
dilution, and the best results were when ejaculates had collected twice a day at an interval of one
hour, accordingly we recommended this protocol for preparation of buck semen for artificial
insemination. |
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