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Comparison of different mathematical models to assess seasonal variations in the longevity of DNA integrity of cooled‐stored stallion sperm by Ortiz, Isabel; QuiñonesâPérez, Carlota; Hidalgo, Manuel; Consuegra, Cesar; DiazâJimenez, Maria; Dorado, Jesus; VegaâPla, Jose Luis; Crespo, Francisco is a Medicine article available to read on EtoBox.

What is Comparison of different mathematical models to assess seasonal variations in the longevity of DNA integrity of cooled‐stored stallion sperm about?

Dynamic assessment of sperm DNA fragmentation (SDF) has shown to give fuller understanding of stallion semen quality; however, there have been limited attempts to use this parameter to investigate seasonal changes in productive functions. The aims of this study were to: (a) establish a reliable mathematical model to describe the longevity of cooled-stored sperm DNA integrity; (b) to examine the effect of seasonal variations on SDF. Ejaculates were cooled to 5°C, and SDF was analysed after 0, 6 and 24 hr of storage. The coefficient of determination (R ) was calculated after fine-tuning linear (LIN), exponential (EXP) and second order polynomial (POL) models. R was significantly higher (p < .001) for POL than for LIN and EXP. The rate of DNA degradation was calculated using the slopes of POL equations. After assessing the rate of change of the POL functions, significant differences between the acceleration of DNA fragmentation were found (p < .01) among seasons, being higher for winter and summer than spring and autumn. In conclusion, DNA analysis of stallion sperm fits better to a second order polynomial mathematical model, being spring the best season to collect and process cooled

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Author

Ortiz, Isabel; QuiñonesâPérez, Carlota; Hidalgo, Manuel; Consuegra, Cesar; DiazâJimenez, Maria; Dorado, Jesus; VegaâPla, Jose Luis; Crespo, Francisco

Publisher

Hindawi Limited

Published

2020

Language

EN

Field

Medicine (Health Sciences)