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首页> 外文期刊>Archives Animal Breeding >The fatty acid composition of longissimus?lumborum?muscle of suckling and earlyweaned dual-purpose wool/meat lambs
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The fatty acid composition of longissimus?lumborum?muscle of suckling and earlyweaned dual-purpose wool/meat lambs

机译：哺乳和早期断奶的两用羊毛/肉羔羊的长背肌—腰—肌的脂肪酸组成

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摘要

Twenty-four dual purpose (wool/meat) suckling and early weaned ram lambs were used to study the fatty acid profile in intramuscular fat of?longissimus lumborum?muscle and lipid oxidation in blood serum. At 60 days of age 12 rams were slaughtered as suckling lambs. The other 12 early weaned and fed according to standards by grass hay and concentrate, and slaughtered at 90 days of age. Suckling lambs had more polyunsaturated fatty acids (P≤0.01) than early-weaned lambs. Younger lambs obtained also higher values of n-3 fatty acids (P≤0.01) and lower n-6-3 ratio (P≤0.01) appropriate in relation to their contribution to human health. Muscle tissue of early-weaned lambs compared to suckling group was characterised by significantly higher c9,t11C18:2 content (P≤0.01), which is desirable in human diet with regard to its peculiarities. The higher amount (P≤0.01) of vaccenic acid, which is the substrate for rumenic acid formation, has been observed in early-weaned lambs also.
机译：采用24只两用（羊毛/肉）哺乳和早期断奶的公羊羔来研究腰最长肌肌肉中脂肪酸的脂肪酸谱和血清脂质的氧化。在60日龄时，将12只公羊作为羔羊羔宰杀。另外12个早期断奶，并按照草干草和精矿的标准饲喂，并在90日龄时屠宰。哺乳期的羔羊比早期断奶的羔羊具有更多的多不饱和脂肪酸（P≤0.01）。就其对人类健康的贡献而言，年轻的羔羊还可以获得较高的n-3脂肪酸值（P≤0.01）和较低的n-6 / n-3比值（P≤0.01）。与哺乳组相比，早期断奶羔羊的肌肉组织具有明显更高的c9，t11C18：2含量（P≤0.01）的特征，这在人类饮食中是理想的。在早期断奶的羔羊中也观察到较高含量的维甲酸（P≤0.01），后者是瘤胃酸形成的底物。

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