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  • Title: Effect of maternal rearing on lipid metabolism-related gene expression in offspring broilers during embryonic development.
    Author: Zhao S, Ma H, Miao J, Zou S, Chen W.
    Journal: Br Poult Sci; 2010 Aug; 51(4):500-6. PubMed ID: 20924843.
    Abstract:
    1. The aim of this study was to investigate the effect of maternal rearing on lipid metabolism and lipid metabolism-related gene expression in offspring broilers during embryonic development. 2. One hundred laying Sanhuang breeders were divided into two groups, and either floor-reared or cage-reared on the same diet. Liver and serum samples were extracted on days 14 and 19 of embryonic development and at hatching. The lipid metabolism related gene expressions of acetyl CoA carboxylase (ACC), fatty acid synthase (FAS), malic enzyme (ME), apolipoprotein B100(apoB100), sterol regulating element binding protein (SREBP-1c), carnitine palmitoyltransferase (CPT-1) and peroxisome proliferators-activated receptor (PPARα) genes were determined using real time RT-PCR. 3. The results showed that embryonic weight, liver weight, serum and hepatic total cholesterol (TC) concentration and serum triglyceride (TG) content were not significantly different between the cage-reared group and the floor-reared group during embryonic development. However, embryonic weight, liver weight, serum and hepatic TC concentration and serum TG content in the cage-reared group were significantly higher than in the floor-reared group at hatching. 4. Hepatic ACC, FAS, SREBP-1c, ME and apoB genes expression were not significantly different between the cage-reared and the floor-reared groups during E9 and E14 development. Hepatic ME gene expression in the cage-reared group was higher than in the floor-reared group during E19 development. However, hepatic FAS, SREBP-1c, CPT-1 and PPARα gene expressions in the cage-reared group was higher than in the floor-reared group. 5. A change in the maternal regime could regulate lipid metabolism in offspring broilers during embryonic development, and especially at hatching.
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