Individual and seasonal variations in the quality of fractionated boar ejaculates

Theriogenology
Łukasz ZasiadczykK Wasilewska

Abstract

Reproductive seasonality has been shown to affect the quality of boar semen. In this study, effects of seasonal variations in the characteristics of spermatozoa and seminal plasma (SP) of fractioned ejaculates from individual boars have been investigated. Fractionated ejaculates, designated as fraction 1 (F1), fraction 2 (F2), and fraction 3 (F3), were collected from five mature boars during the autumn-winter (October through March) and spring-summer periods (April through September). A total of 10 fractionated ejaculates (F1, F2, and F3) were collected from each boar within each seasonal period. Assessments of the sperm quality characteristics included computer-assisted sperm analysis motion patterns, mitochondrial membrane potential (MMP), plasma membrane integrity, normal apical ridge acrosomes, and DNA fragmentation. Besides SDS-PAGE and densitometric analyses of the SP proteins, the antiperoxidant activity was monitored. There were marked differences in the sperm quality characteristics among the boars, except for sperm MMP. Distinct seasonal differences (P < 0.05) were observed in the ejaculate volume of F3 during the autumn-winter and spring-summer periods (107.78 ± 5.45 and 87.80 ± 4.75 mL, respectively). Significantly ...Continue Reading

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Citations

Aug 25, 2016·Reproduction in Domestic Animals = Zuchthygiene·K WasilewskaW Kordan
Nov 12, 2018·Reproduction, Fertility, and Development·Santiago T PeñaDamien B B P Paris
Mar 22, 2019·Journal of Animal Breeding and Genetics = Zeitschrift Für Tierzüchtung Und Züchtungsbiologie·Xiujin LiYaosheng Chen
May 2, 2019·Frontiers in Genetics·Marta GòdiaAlex Clop
Feb 13, 2021·Animals : an Open Access Journal From MDPI·Raquel AusejoMaría Victoria Falceto
Apr 30, 2021·Reproduction in Domestic Animals = Zuchthygiene·Vinicio BarqueroAnthony Valverde

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