Effects of dietary supplementation with detoxified sap on egg production, yolk lipid and intestinal microflora in laying hens
Objective This study was conducted to investigate the effects of dietary detoxified Rhus verniciflua sap (RVS) on production performance, egg quality, lipid fractions of egg yolk, liver and serum, and the profile of cecal microflora in laying hens. Methods Two hundred 52-week-old Hy-Line Brown layer...
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Asian-Australasian Association of Animal Production Societies
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doaj-ef3b7a1cab9743f2bf1878d945a17c632020-11-25T00:30:18ZengAsian-Australasian Association of Animal Production SocietiesAsian-Australasian Journal of Animal Sciences1011-23671976-55172018-01-01311869010.5713/ajas.17.015623763Effects of dietary supplementation with detoxified sap on egg production, yolk lipid and intestinal microflora in laying hensByoung-Ki An0Je-Hun Kim1Lan Zheng2Byung-Hern Moon3Kyung-Woo Lee4 Laboratory of Poultry Science, Department of Animal Science and Technology, Konkuk University, Seoul 05029, Korea Laboratory of Poultry Science, Department of Animal Science and Technology, Konkuk University, Seoul 05029, Korea Laboratory of Poultry Science, Department of Animal Science and Technology, Konkuk University, Seoul 05029, Korea Celltech, Co., Ltd., Eumseong 27622, Korea Laboratory of Poultry Science, Department of Animal Science and Technology, Konkuk University, Seoul 05029, KoreaObjective This study was conducted to investigate the effects of dietary detoxified Rhus verniciflua sap (RVS) on production performance, egg quality, lipid fractions of egg yolk, liver and serum, and the profile of cecal microflora in laying hens. Methods Two hundred 52-week-old Hy-Line Brown layers were randomly divided into 4 groups with 5 replicates per group (2 hens per cage, 5 cages per replicate) and were provided with one of 4 experimental diets containing 0%, 0.05%, 0.1%, or 0.2% RVS, for 6 weeks. Due to unequal intervals of RVS doses, the interactive matrix language procedure of the SAS program was used to correct the contrast coefficients of orthogonal polynomials. Results There were no differences in feed intake and egg weight among the groups. Egg production increased (linearly and quadratically, p<0.05) with increasing levels of RVS. Eggshell thickness increased (linear, p<0.05) as the level of RVS in diets increased. The levels of blood cholesterol and activities of glutamic-oxaloacetic transaminase and glutamic-pyruvic transaminase were not altered by dietary treatments. Increasing level of RVS increased (linear, p<0.05) the populations of cecal lactic acid bacteria. The content of yolk cholesterol decreased (linear, p< 0.05) with increasing levels of dietary RVS, although there were no significant differences in each lipid fraction of the liver. Conclusion This study indicates that dietary RVS could improve laying performance and eggshell quality, and affect cecal lactic acid bacteria in a dose-dependent manner.http://www.ajas.info/upload/pdf/ajas-31-1-86.pdfLipid MetabolismLaying PerformanceEgg QualityLaying Hens |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Byoung-Ki An Je-Hun Kim Lan Zheng Byung-Hern Moon Kyung-Woo Lee |
spellingShingle |
Byoung-Ki An Je-Hun Kim Lan Zheng Byung-Hern Moon Kyung-Woo Lee Effects of dietary supplementation with detoxified sap on egg production, yolk lipid and intestinal microflora in laying hens Asian-Australasian Journal of Animal Sciences Lipid Metabolism Laying Performance Egg Quality Laying Hens |
author_facet |
Byoung-Ki An Je-Hun Kim Lan Zheng Byung-Hern Moon Kyung-Woo Lee |
author_sort |
Byoung-Ki An |
title |
Effects of dietary supplementation with detoxified sap on egg production, yolk lipid and intestinal microflora in laying hens |
title_short |
Effects of dietary supplementation with detoxified sap on egg production, yolk lipid and intestinal microflora in laying hens |
title_full |
Effects of dietary supplementation with detoxified sap on egg production, yolk lipid and intestinal microflora in laying hens |
title_fullStr |
Effects of dietary supplementation with detoxified sap on egg production, yolk lipid and intestinal microflora in laying hens |
title_full_unstemmed |
Effects of dietary supplementation with detoxified sap on egg production, yolk lipid and intestinal microflora in laying hens |
title_sort |
effects of dietary supplementation with detoxified sap on egg production, yolk lipid and intestinal microflora in laying hens |
publisher |
Asian-Australasian Association of Animal Production Societies |
series |
Asian-Australasian Journal of Animal Sciences |
issn |
1011-2367 1976-5517 |
publishDate |
2018-01-01 |
description |
Objective This study was conducted to investigate the effects of dietary detoxified Rhus verniciflua sap (RVS) on production performance, egg quality, lipid fractions of egg yolk, liver and serum, and the profile of cecal microflora in laying hens. Methods Two hundred 52-week-old Hy-Line Brown layers were randomly divided into 4 groups with 5 replicates per group (2 hens per cage, 5 cages per replicate) and were provided with one of 4 experimental diets containing 0%, 0.05%, 0.1%, or 0.2% RVS, for 6 weeks. Due to unequal intervals of RVS doses, the interactive matrix language procedure of the SAS program was used to correct the contrast coefficients of orthogonal polynomials. Results There were no differences in feed intake and egg weight among the groups. Egg production increased (linearly and quadratically, p<0.05) with increasing levels of RVS. Eggshell thickness increased (linear, p<0.05) as the level of RVS in diets increased. The levels of blood cholesterol and activities of glutamic-oxaloacetic transaminase and glutamic-pyruvic transaminase were not altered by dietary treatments. Increasing level of RVS increased (linear, p<0.05) the populations of cecal lactic acid bacteria. The content of yolk cholesterol decreased (linear, p< 0.05) with increasing levels of dietary RVS, although there were no significant differences in each lipid fraction of the liver. Conclusion This study indicates that dietary RVS could improve laying performance and eggshell quality, and affect cecal lactic acid bacteria in a dose-dependent manner. |
topic |
Lipid Metabolism Laying Performance Egg Quality Laying Hens |
url |
http://www.ajas.info/upload/pdf/ajas-31-1-86.pdf |
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