&nbsp;Breed Effect on the Semen Quality and Sperm Morphology of
 Boar and the Ｒule of Variation with Age

ZHAO Yunxiang, FANG Cheng, ZHU Lin, GAO Guangxiong, YE Li, ZHANG Conglin, LI Zhili

doi:10.15933/j.cnki.1004-3268.2019.11.022

Journal of Henan Agricultural Sciences >

2019 , Vol. 48 >Issue 11: 157 - 162

DOI: https://doi.org/10.15933/j.cnki.1004-3268.2019.11.022

Animal Husbandry and Veterinary Medicine

Breed Effect on the Semen Quality and Sperm Morphology of Boar and the Ｒule of Variation with Age

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( 1.College of Life Science and Engineering,Foshan University,Foshan 528225,China; 2.Guangxi Yangxiang Co.,Ltd.,Guigang 537100,China; 3.Guangxi Xiubo Technology Co.,Ltd.,Guigang 537100,China)

Received date: 2019-04-27

Online published: 2019-11-15

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Abstract

In order to comprehensively evaluate the quality of boar semen,we study the effect of breed and age on the semen quality and morphological parameters of sperm in boars.114 boars were selected and multivariate analysis was performed on routine semen quality parameters，abnormal morphological parameters of sperm，and normal morphological parameters of sperm using a general linear model with breed and age as fixed factors.Ｒesults showed that in the routine semen quality，sperm density of Duroc (619.20 million/mL) was significantly higher(P ＜0.05) than Landrace( 363.18 million/mL) and Yorkshire( 336.92 million/mL) ,the sperm vitality and linear motion rate of Duroc and Yorkshire were significantly(P＜0.05) higher than Landrace.The normal form rate of Landrace boars sperm(92.95%) was significantly(P＜0.05) higher than Duroc(90.78%),the sperm density of one year old boars (556.98 million/mL) was significantly(P＜0.05) higher than that of two and three years old boars ( 382.44 million/mL,373.32 million/mL).In terms of anomalous sperm morphological parameters,the bent tail rate and the curled tail rate of Yorkshire were significantly(P＜0.05) lower than Duroc and Landrace，the proximal droplets rate of Landrace boars sperm(2.28%) was significantly(P＜0.05) lower than Duroc(3.94%) and Yorkshire(2.92%),the proximal droplets rate of three years old boars was significantly (P＜0.05) lower than two years old boars.In terms of normal sperm morphology parameters,the head and tail length from boar of Duroc and Yorkshire were significantly(P＜0.05) higher than Landrace，the head width of Duroc(2.96 μm) and Landrace(2.94 μm) was significantly higher(P＜0.05) than Yorkshire(2.87μm),the head circumference of Duroc,Yorkshire and Landrace decreased in turn and was significantly different(P＜0.05),the head area/total sperm length of Landrace was significantly(P＜0.05) higher than Yorkshire,the head width/head length of Landrace boar was significantly higher (P ＜0.05) than that of Duroc and Yorkshire,the sperm head length,head circumference,head length/total sperm length,head length/tail length of boars of one and two years old were significantly higher(P＜0.05) than three years old,the tail length/total sperm length and head width/head length of boars of one and two years old were significantly(P＜0.05) lower than three years old.Ｒesults indicated that in terms of conventional semen quality parameters,Duroc was the best,followed by Yorkshire and Landrace,but the morphology parameters of Duroc was at a disadvantage compared to Landrace and Yorkshire.The factor of age had little effect on boar semen quality．

Key words： Boar; Breed; Age; Semen quality; Sperm morphology

Cite this article

ZHAO Yunxiang, FANG Cheng, ZHU Lin, GAO Guangxiong, YE Li, ZHANG Conglin, LI Zhili . Breed Effect on the Semen Quality and Sperm Morphology of Boar and the Ｒule of Variation with Age[J]. Journal of Henan Agricultural Sciences, 2019 , 48(11) : 157 -162 . DOI: 10.15933/j.cnki.1004-3268.2019.11.022

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