alexa Baboon spermatology: basic assessment and reproducibility in olive baboons (Papio anubis).

Journal of Primatology

Author(s): Nyachieo A, Spiessens C, Chai DC, Kiulia NM, Mwenda JM,

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Abstract BACKGROUND: Development of a reproducible baboon in vitro fertilization (IVF) system require optimized and reproducible sperm parameters. The objective of this study was to document basic spermatology values and investigate the reproducibility of these variables in the same baboons 1 or 3 months later in a larger number of baboons. METHODS: In this prospective study, sperm quality (semen volume, pH, concentration, motility, morphology and size) was evaluated in 27 sperm samples obtained from 9 baboons electroejaculated three times with a time interval of 1 month (between first and second sample collection) and 3 months (between second and third round sample collection). RESULTS: Baseline sperm values for semen volume (0.5 ± 0.3 ml), pH (7.5 ± 0.3), concentration (54.2 ± 19.3 million/ml), motility (67.3 ± 18.5\%) and morphology (89.2 ± 4.8\%) were similar to sperm samples obtained after 1 or 3 months (P > 0.05). Head, midpiece and tail abnormalities were rarely observed (0-9\%). Sperm dimensions were characterized by a tail length of 69.6 ± 13.9 μm, a head width of 2.41 ± 0.43 μm and a head length of 3.49 ± 0.6 μm. CONCLUSION: Sperm quality was not affected by repeated electroejaculation with time intervals of 1 or 3 months, suggesting that the same baboon can participate multiple times in reproductive research. © 2012 John Wiley & Sons A/S. This article was published in J Med Primatol and referenced in Journal of Primatology

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