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首页> 外文期刊>Animal Production Science >Fatty acid composition and mRNA expression levels of lipid-metabolic genes in the muscles of ovariectomised young goats
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Fatty acid composition and mRNA expression levels of lipid-metabolic genes in the muscles of ovariectomised young goats

机译：去卵巢幼山羊肌肉中脂肪酸组成和脂质代谢基因的mRNA表达水平

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摘要

This study investigated the fatty acid composition and mRNA levels of acetyl-coenzyme A carboxylase (ACC), fatty acid synthase (FAS), hormone-sensitive lipase (HSL) and lipoprotein lipase (LPL) genes in the Longissimus dorsi muscle (LD) and Biceps femoris muscle (BF) of nine ovariectomised young goats, 50 days after ovariectomy at 5 months of age, relative to nine Control goats. Ovariectomy resulted in faster growth rates (130 vs 110 g/days; P = 0.027), more intramuscular fat (3.37% vs 1.62%; P = 0.009) and heavier final weights (28.3 vs 26.6 kg; P = 0.035). The total saturated fatty acid, C15:0 in the LD and C6:0, C11:0, C12:0, C15:0 and C21:0 in the BF were lower in ovariectomised goats than that in the Control goats (P < 0.05). Ovariectomy increased the total monounsaturated fatty acids in the LD (P < 0.05) and BF (P < 0.01). In the BF, the total polyunsaturated fatty acids and C18:2 of ovariectomised goats were lower than those of the Control goats (P < 0.05), and the C20:2 content significantly decreased in the LD (P < 0.05). The LD of the ovariectomised goats expressed significantly higher FAS but lower HSL mRNA levels than those of Control goats (P < 0.01). Significantly higher ACC, FAS and LPL and lower HSL mRNA levels were observed in the BF of the ovariectomised goats than in the BF of Controls (P < 0.05). These data suggest that ovariectomy affects fatty acid composition potentially by altering the expression of lipid-metabolic genes in the muscles of young goats.
机译：这项研究调查了背阔肌（LD）和背阔肌（LD）中乙酰辅酶A羧化酶（ACC），脂肪酸合酶（FAS），激素敏感脂肪酶（HSL）和脂蛋白脂肪酶（LPL）基因的脂肪酸组成和mRNA水平。相对于九只对照山羊，在五个月大的卵巢切除术后50天，九只经卵巢切除的小山羊的股二头肌（BF）。卵巢切除术导致更快的生长速度（130 vs 110 g /天; P = 0.027），更多的肌内脂肪（3.37％vs 1.62％; P = 0.009）和更重的最终体重（28.3 vs 26.6 kg; P = 0.035）。去卵巢山羊的总饱和脂肪酸，LD中的C15：0和BF中的C6：0，C11：0，C12：0，C15：0和C21：0均低于对照山羊（P <0.05 ）。卵巢切除术增加了LD（P <0.05）和BF（P <0.01）中的总单不饱和脂肪酸。在高炉中，去卵巢山羊的总多不饱和脂肪酸和C18：2低于对照山羊（P <0.05），而LD中的C20：2含量显着降低（P <0.05）。与对照山羊相比，去卵巢山羊的LD表现出显着更高的FAS但更低的HSL mRNA水平（P <0.01）。与对照的BF相比，去卵巢山羊的BF中的ACC，FAS和LPL显着较高，而HSL mRNA水平较低（P <0.05）。这些数据表明，卵巢切除术可能通过改变幼山羊肌肉中脂质代谢基因的表达来影响脂肪酸的组成。

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