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KMID : 1005220060210030241
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Journal of Embryo Transfer
2006 Volume.21 No. 3 p.241 ~ p.245
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Effect of Treatment of Lipopolysaccharides on Reproductive Performance in Lactating Dairy Cows
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Baek K. S.
Park S. B.
Park S. J.
Kim H. S.
Lee Wang-Sik
Lee H. J.
Hur Tai-Young
Jeon B. S.
Ahn Byeong-Seog
M. Ajmal Khan
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Abstract
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This study was carried out to investigate the effect of intra-uterine infusion of lipopolysaccharide (LPS) on reproductive performance in lactating dairy cows. Conception rate at first service was higher (56.0%) in dairy cows treated with LPS compared to non-treated cows (20.0 %). Cumulative conception rate by overall services (more than 2 services) after LPS treatment was also higher (64.0%) in dairy cows treated with LPS compared to non-treated cows (40.0%). Services per conception was significantly higher in control ($2.0{\pm}0.1$) compared with LPS ($1.2{\pm}0.4$) treated group (p<0.05).
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KEYWORD
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Holstein, lipopolysaccharide, service per conception, conception rate
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