Age-related changes in quality and fertility of porcine semen

The aim of this study was to investigate the effect of boar age on quality traits and fertility of liquid-stored semen. Boars were allocated into 3 age groups: 7-10 months (young), 18-33 months (mature), 51-61 months (old). Ejaculates of > 200x10(6) sperm/ml and 85% total motile sperm were ex...

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Autores principales:	Tsakmakidis,Ioannis A, Khalifa,Tarek AA, Boscos,Costas M
Lenguaje:	English
Publicado:	Sociedad de Biología de Chile 2012
Materias:	boar age boar semen morphology morphometry sperm chromatin
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602012000400009
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spelling	oai:scielo:S0716-976020120004000092013-03-15Age-related changes in quality and fertility of porcine semenTsakmakidis,Ioannis AKhalifa,Tarek AABoscos,Costas M boar age boar semen morphology morphometry sperm chromatin The aim of this study was to investigate the effect of boar age on quality traits and fertility of liquid-stored semen. Boars were allocated into 3 age groups: 7-10 months (young), 18-33 months (mature), 51-61 months (old). Ejaculates of > 200x10(6) sperm/ml and 85% total motile sperm were extended to 30x10(6) sperm/ml, stored at 17-18 °C and used within 12-24 h for artificial insemination (AI) of 2062 multiparous sows. After 24 h of storage, aliquots of diluted semen were assessed for sperm progressive motility (SPM), incidence of sperm chromatin instability (SCI), proportion of live morphologically normal sperm (LMNS) and head morphometry of LMNS. The results showed that young boars had higher percentages of SCI and lower proportions of LMNS than those of the mature (p < 0.05) and old (p < 0.001) boars, respectively. Sperm head dimensions of young and old boars were greater (p < 0.03-0.001) than those of mature boars. The farrowing rate of young boars (65%) was significantly lower (p < 0.001; χ2= 30-61) than those of the mature (87.2%) and old (84.7%) boars. The relationship between sperm head dimensions and boar fertility was non-significant. In conclusion, boar age is an important physiological factor contributing to the success of swine AI.info:eu-repo/semantics/openAccessSociedad de Biología de ChileBiological Research v.45 n.4 20122012-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602012000400009en10.4067/S0716-97602012000400009
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	boar age boar semen morphology morphometry sperm chromatin
spellingShingle	boar age boar semen morphology morphometry sperm chromatin Tsakmakidis,Ioannis A Khalifa,Tarek AA Boscos,Costas M Age-related changes in quality and fertility of porcine semen
description	The aim of this study was to investigate the effect of boar age on quality traits and fertility of liquid-stored semen. Boars were allocated into 3 age groups: 7-10 months (young), 18-33 months (mature), 51-61 months (old). Ejaculates of > 200x10(6) sperm/ml and 85% total motile sperm were extended to 30x10(6) sperm/ml, stored at 17-18 °C and used within 12-24 h for artificial insemination (AI) of 2062 multiparous sows. After 24 h of storage, aliquots of diluted semen were assessed for sperm progressive motility (SPM), incidence of sperm chromatin instability (SCI), proportion of live morphologically normal sperm (LMNS) and head morphometry of LMNS. The results showed that young boars had higher percentages of SCI and lower proportions of LMNS than those of the mature (p < 0.05) and old (p < 0.001) boars, respectively. Sperm head dimensions of young and old boars were greater (p < 0.03-0.001) than those of mature boars. The farrowing rate of young boars (65%) was significantly lower (p < 0.001; χ2= 30-61) than those of the mature (87.2%) and old (84.7%) boars. The relationship between sperm head dimensions and boar fertility was non-significant. In conclusion, boar age is an important physiological factor contributing to the success of swine AI.
author	Tsakmakidis,Ioannis A Khalifa,Tarek AA Boscos,Costas M
author_facet	Tsakmakidis,Ioannis A Khalifa,Tarek AA Boscos,Costas M
author_sort	Tsakmakidis,Ioannis A
title	Age-related changes in quality and fertility of porcine semen
title_short	Age-related changes in quality and fertility of porcine semen
title_full	Age-related changes in quality and fertility of porcine semen
title_fullStr	Age-related changes in quality and fertility of porcine semen
title_full_unstemmed	Age-related changes in quality and fertility of porcine semen
title_sort	age-related changes in quality and fertility of porcine semen
publisher	Sociedad de Biología de Chile
publishDate	2012
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602012000400009
work_keys_str_mv	AT tsakmakidisioannisa agerelatedchangesinqualityandfertilityofporcinesemen AT khalifatarekaa agerelatedchangesinqualityandfertilityofporcinesemen AT boscoscostasm agerelatedchangesinqualityandfertilityofporcinesemen
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Age-related changes in quality and fertility of porcine semen

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