Effect of green tea and tea catechins on the lipid metabolism of caged laying hens

Y B ZHOU; X C WAN; J W HU; L SHAO; Y Y SHANG

doi:10.56093/ijans.v82i11.25170

Authors

Y B ZHOU Anhui Agricultural University, 130 Changjiang West Road, Hefei 230036 China
X C WAN Anhui Agricultural University, 130 Changjiang West Road, Hefei 230036 China
J W HU Anhui Agricultural University, 130 Changjiang West Road, Hefei 230036 China
L SHAO Anhui Agricultural University, 130 Changjiang West Road, Hefei 230036 China
Y Y SHANG Anhui Agricultural University, 130 Changjiang West Road, Hefei 230036 China

https://doi.org/10.56093/ijans.v82i11.25170

Keywords:

Green tea, HDL, Laying hens, Low-density lipoprotein, Tea catechins, Triglycerides

Abstract

The present study was conducted to evaluate the effects of supplementing different levels of green tea or tea catechins on total cholesterol (TC), total triglycerides (TG), high-density lipoprotein (HDL), and low-density lipoprotein (LDL) levels in the plasma of laying hens, as well as the TC, TG and total fatty acid (TFA) levels in breast and thigh meat and egg yolk. Laying hens (1620), 16-week-old, were randomly assigned to 9 dietary groups. Each treatment had 180 birds with 3 replicates. The basal diet was respectively supplemented with green tea powder (0, 2, 4, 6, 8 g/kg) and tea catechins (0.5, 1, 1.5, 2 g/kg). Hens were then reared in battery cages for 60 days. Supplementation with 6 g/kg green tea and 1 g/kg tea catechins at day 56 lowered TC, TG and LDL levels in both plasma and meat, increased plasma HDL levels and decreased yolk TG levels, where statistical significance was considered quadratically. TC levels in yolk were not affected. The addition of green tea and tea catechins had no effect on the levels of myristic acid (C14: 0), stearic acid (C18: 0), oleic acid (C18: 1), linoleic acid (C18: 2n-6), arachidonic acid (C20: 4n-6) and TFA content in yolk, but increased the unsaturated fatty acid content. Dietary green tea and tea catechins increased the excretion of TFA in faeces compared to the control. These results suggest that the addition of green tea and/or tea catechins to the diet of laying hens can improve lipid metabolism and the fatty acid composition of egg yolk.

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Author Biographies

Y B ZHOU, Anhui Agricultural University, 130 Changjiang West Road, Hefei 230036 China
X C WAN, Anhui Agricultural University, 130 Changjiang West Road, Hefei 230036 China
J W HU, Anhui Agricultural University, 130 Changjiang West Road, Hefei 230036 China
L SHAO, Anhui Agricultural University, 130 Changjiang West Road, Hefei 230036 China
Y Y SHANG, Anhui Agricultural University, 130 Changjiang West Road, Hefei 230036 China

References

Ahn D U, Wolfe F H and Sim J S. 1995. Dietary-linolenic acid and mixed tocopherols, and pack- aging influences on lipid stability in broiler chicken breast and leg muscle. Journal of Food Science 60: 1013–18.

Angelin R S, Antonio T, Barbara D, Manuela U, David S and Edward G L. 2010.Cholesterol, triglycerides, and the Five- Factor Model of personality. Biological Psychology 84: 186– 91.

AOCS. 1990. Fatty acid composition by gas chromatography. Official Methods and Recommended Practices. American Oil Chemists Society.

Bragagnolo N and Rodriguez-Amaya D B. 2003. Comparison of the cholesterol content of Brazilian chicken and quail eggs. Journal of Food Composition and Analysis 16: 147–53.

Chan P T, Fong W.P and Huang Y. 1999. Jasmine green tea epicatehins are hypolipidemic in hamster (Mesocricetus auratus). Journal of Nutrition 129: 1094–01.

Elkin R G, Yan Z, Zhong Y, Donkin S S, Buhman K K, Story J A and Turek, J.J. 1999. Select 3-hydroxy-3-methylglutaryl- coenzyme a reductase inhibitors vary in their ability to reduceegg yolk cholesterol levels in laying hens through alteration of hepatic cholesterol biosynthesis and plasma VLDL composition. Journal of Nutrition 29: 1010–19.

Folch J, Lees M and Sloane G H. 1956. A simple method for the isolation and purification of total lipids from animal tissues. Journal of Biological Chemistry 226: 497–509.

Freiberg J J, Tybjaerg-Hansen A, Jensen J S and Nordestgaard B G. 2008. Nonfasting triglycerides and risk of ischemic stroke in the general population. Journal of the American Medical Informatics Association 300: 2142–52.

Graham H N. 1992. Green tea composition, consumption, and polyphenol chemistry. Preventive medicine 21: 334–50.

Hand L W, Hollingsworth C A, Calkins CR and Mandigo R W. 1987. Effect of preblending reduced fat and salt levels on frankfurter characteristics. Journal of Food Science 52: 11489– 51.

Hensley J L and Hand L W. 1995. Formulation and chopping temperature effects on beef frankfurters. Journal of Food Science 60: 55–58.

Herva A, Räsänen P, Miettunen J, Timonen M, Läksy K and Veijola J. 2006. Co-occurrence of metabolic syndrome with depression and anxiety in young adults: the Northern Finland 1966 Birth Cohort Study. Psychosomatic medicine 68: 213–16.

Kuo K L, Weng M S, Chiang C T, Tsai Y J, Shiau S Y L and Lin J K. 2005. Comparative studies on the hypolipidemic and growth suppressive effects of Oolong, Black, Pu-erh, and green tea leaves in rats. Journal of Agricultural and Food Chemistry 53: 480–89.

Lee K W, Everts H, Lankhorst E and Kappert H J. 2003. Addition of ²-ionone to the diet fails to affect growth performance in female broiler chickens. Animal Feed Science and Technology106: 219–23.

Lee S M, Kim C W, Kim J K, Shin H J and Baik J H. 2008. GCG- richtea catechins are effective in lowering cholesterol and triglyceride concentrations in hyperlipidemic rats. Lipids 43: 419–29.

McCaffery J M, Niaura R, Todaro J F, Swan G E and Carmelli D. 2003. Depressive symptoms and metabolic risk in adult male twins enrolled in the National Heart, Lung, and Blood Institute Twin Study. Psychosomatic medicine 65: 490–97.

Mitsumoto M, O’Grady M N, Kerry J.P and Oe Buckley D. 2005. Addition of tea catechins and vitamin C on sensory evaluation, colour and lipid stability during chilled storage in cooked or raw beef and chicken patties. Meat Science 69: 773–79.

Muramatsu K, Fukuyo M and Hara Y. 1986. Effect of green tea catechins on plasma cholesterol level in cholesterol-fed rats. Journal of Nutrition Science and Vitaminol 32: 613–22.

Psaty B M, Anderson M and Kronmal R A. 2004. The association between lipid levels and the risks of incident myocardial infarction, stroke, and total mortality: the cardiovascular health study. Journal of the American Geriatrics Society 52: 1639– 1647.

Raes K, Huyghebaert G, DeSmet S, Nollet L, Arnouts S and Demeyer D. 2002. The deposition of conjugated linoleic acids in eggs of laying hens fed diets varying in fat level and fatty acid profile. Journal of Nutrition 132: 182–89.

Shahar E, Chambless L E and Rosamond W D. 2003. Plasma lipid profile and incident ischemic stroke: the Atherosclerosis Riskin Communities (ARIC) study. Stroke 34: 623–631

Tang S Z, Kerry J P, Sheehan D, Buckley D J and Morrissey P A. 2001. Antioxidative effect of dietary tea catechins on long-term frozen stored chicken meat. Meat Science 57: 331–36.

Wu L Y, Juan C C, Ho L T and Hwang L S. 2004. Effect of green tea supplementation on insulin sensitivity in sprague-dawley rats. Journal of Agricultural and Food Chemistry 52: 643–48.