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Developmental changes in lipid and fatty acid metabolism and the inhibition by in ovo feeding oleic acid in Muscovy duck embryogenesis
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Xiufen Zhanga, Qilin Wua, Wenxuan Zhenga, Chuang Liub, Liang Huanga, Xin Zuob, Wenquan Xiaob, Xiaofeng Hanb, Hui Yea, Wence Wanga, Lin Yanga, *, Yongwen Zhua, *
Animal Nutrition | 2023, 12(1) : 321 - 333
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Animal Nutrition | 2023, 12(1): 321-333
• Original Research Article •
Developmental changes in lipid and fatty acid metabolism and the inhibition by in ovo feeding oleic acid in Muscovy duck embryogenesis
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Xiufen Zhanga, Qilin Wua, Wenxuan Zhenga, Chuang Liub, Liang Huanga, Xin Zuob, Wenquan Xiaob, Xiaofeng Hanb, Hui Yea, Wence Wanga, Lin Yanga, *, Yongwen Zhua, *
Affiliations
  • aGuangdong Provincial Key Laboratory of Animal Nutrition and Regulation, College of Animal Science, South China Agricultural University, Guangzhou 510642, China
  • bWen's Food Group Co., Ltd, Yunfu 52740, China
Published: 2023-03-10 doi: 10.1016/j.aninu.2022.10.005
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Hepatic lipid and fatty acid (FA) metabolism are critical for regulating energetic homeostasis during embryogenesis. At present, it remains unclear how an exogenous FA intervention affects embryonic development in an avian embryo model. In Exp. 1, 30 fertilized eggs were sampled on embryonic days (E) 16, 19, 22, 25, 28, 31 and the day of hatch (DOH) to determine the critical period of lipid metabolism. In Exp. 2, a total of 120 fertilized eggs were divided into two groups (60 eggs/group) for in ovo feeding (IOF) procedures on E25. Eggs were injected into the yolk sac with PBS as the control group and with oleic acid (OA) as the IOF-OA treatment group. Samples were collected on E28 and E31. In Exp. 1, hepatic triacylglycerol (TG) and cholesterol (CHO) contents increased while serum TG content decreased from E16 to DOH (P < 0.05). Both serum and liver displayed an increase in unsaturated FA and a decrease in saturated FA (P < 0.05). There was a quadratic increase in the target gene and protein expression related to hepatic FA de novo synthesis and oxidation (P < 0.05), whose inflection period was between E22 and E28. In Exp. 2, compared with the control embryos, IOF-OA embryos had an increased yolk sac TG content on E28 and E31, and a decreased serum TG and CHO content on E28 (P < 0.05). The IOF-OA embryos had less OA in the yolk sac and liver on E28, and less unsaturated FA in the serum and liver on E31 than did the control embryos (P < 0.05). Hepatic gene mRNA expression related to FA uptake, synthesis, and oxidation on E28 was lower in IOF-OA than in control embryos (P < 0.05), not on E31 (P > 0.05). Maximal metabolic changes in lipid and FA metabolism occurred on E22-E28 in Muscovy duck embryogenesis, along with the altered target gene and protein expression related to lipogenesis and lipolysis. IOF-OA intervention on E25 could inhibit the target gene expression related to FA uptake, synthesis, and oxidation, which may influence the normal FA metabolism on E28 during embryogenesis.

Embryo  /  Lipid  /  Triacylglycerol  /  Cholesterol  /  Fatty acid  /  Oleic acid
Xiufen Zhang, Qilin Wu, Wenxuan Zheng, Chuang Liu, Liang Huang, Xin Zuo, Wenquan Xiao, Xiaofeng Han, Hui Ye, Wence Wang, Lin Yang, Yongwen Zhu. Developmental changes in lipid and fatty acid metabolism and the inhibition by in ovo feeding oleic acid in Muscovy duck embryogenesis[J]. Animal Nutrition, 2023 , 12 (1) : 321 -333 . DOI: 10.1016/j.aninu.2022.10.005
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Year 2023 volume 12 Issue 1
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Article Info
doi: 10.1016/j.aninu.2022.10.005
  • Receive Date：2022-02-10
  • Online Date：2026-02-03
  • Published：2023-03-10
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History
  • Received：2022-02-10
  • Revised：2022-09-26
  • Accepted：2022-10-11
Affiliations
    aGuangdong Provincial Key Laboratory of Animal Nutrition and Regulation, College of Animal Science, South China Agricultural University, Guangzhou 510642, China
    bWen's Food Group Co., Ltd, Yunfu 52740, China

Corresponding:

* Corresponding authors. E-mail addresses: (L. Yang)
(Y. Zhu).
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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