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- Title
不同月龄滩羊肌肉 和脂肪组织中脂肪酸含量及组成比较的研究.
- Authors
李彩琴; 徐晓锋; 张力莉
- Abstract
The purpose of the experiment was to explore the effect of age of month on fatty acid composition in muscle and adipose tissue of Tan sheep fed in barn. In the experiment, 12 Tan sheep at the age of 4, 6 and 9 months old, which are close to the body weight and healthy, were selected to be fed in captivity, slaughtered at the age of 6, 9 and 12 months old, and their longissimus dorsi, biceps femoris, tail fat and subcutaneous fat were taken, and the content of fatty acid was determined by gas chromatography. The results showed that the content of C16∶0 and C18∶1n9c in longissimus dorsi muscle and biceps femoris muscle of Tan sheep at 12 months of age were extremely higher than those at 6 and 9 months old (P<0.01). The content of C16∶0 and C18∶0 in subcutaneous fat at 6 months old were extremely higher than those at 9 months old (P<0.01). The content of C18∶3n3 and n-3 PUFA in tail and subcutaneous fat of Tan sheep at 6 months old were extremely higher than those at 9 months old (P<0.01). The content of C18∶2n6c in longissimus dorsi muscle and biceps femoris muscle of Tan sheep at 6 months old was significantly lower than that at 12 months old (P<0.05), but the content of C18∶2n6c in subcutaneous fat was significantly higher than that at 9 months old (P<0.05). The content of EPA in biceps femoris muscle of Tan sheep at 6 months old was significantly higher than that at 12 months old (P<0.05), and the content of DHA in tail fat of 9 months old was significantly lower than that at 12 months old (P<0.05). The content of n-6 PUFA in longissimus dorsi muscle of Tan sheep at 12 months old was extremely higher than that at 6 and 9 months old (P<0.01). The content of n-6 PUFA in biceps femoris at 6 months old was significantly lower than that at 12 months old (P<0.05), and the content of n-6 PUFA in subcutaneous fat was significantly higher than that at 9 and 12 months old (P<0.05). The experiment indicates that the fatty acid content in muscle and adipose tissue of Tan sheep at different months old were different, which affects the meat flavor and nutritional value to a certain extent. The meat flavor of Tan sheep at 9 months old is better.
- Publication
Feed Research, 2023, Vol 46, Issue 9, p114
- ISSN
1002-2813
- Publication type
Article
- DOI
10.13557/j.cnki.issn1002-2813.2023.09.023