米兰体育官网登录 用亚麻荠油替代鱼油对真鲷生长性能、脂肪酸谱、消化率、肝脏组织学和抗氧化状态的影响

引用

Mzengereza K、Ishikawa M、Koshio S、Yokoyama S、Yukun Z、Shadrack RS、Seo S、Duy Khoa TN、Moss A、Dossou S、Basuini MFE 和 Dawood MAO (2021) 用亚麻荠油替代鱼油对生长性能、脂肪酸谱、消化率、肝脏的影响 红鲷（真鲷）的组织学和抗氧化状态。动物，11（7），艺术。编号：1990。https://doi.org/10.3390/ani11071990

摘要
进行了为期 56 天的饲养试验，以评估红鲷鱼（初始重量：1.8 ± 0.02 g）对不同比例的亚麻荠油 (CO) 替代鱼油 (FO) 的反应。对照饮食配制为 46% CP (6F0C)，仅含 FO，不含 CO；从第二个到第五个饮食，FO以5:1 (5F1C)、4:2 (4F2C)、3:3 (3F3C)、2:4 (2F4C)和0:6 (0F6C)的比例被CO替代。本研究结果表明，直至用CO完全替代FO，对生长变量BW = 26.2 g–28.3 g)、体重增加(BWG = 1275.5–1365.3%)、特定生长率(SGR = 4.6–4.7)、采食量(FI = 25.6–27.8)、饲料转化率(FCR = 1.0–1.1)、饲料转化率(FCR = 1.0–1.1)没有显着影响。生物识别指数 状况因素 (CF = 2.2–2.4)、肝体指数 (HSI = 0.9–1.1)、内脏指数 (VSI = 7.5–9.5) 和存活率 (SR = 82.2–100) 与 CO 的不同 FO 替代水平。同样，没有显着差异 (p 0.05) found in the whole-body composition except for the crude lipid content, and the highest value was observed in the control group (291 g/kg) compared to the other groups FO5CO1 (232 k/kg), FO4CO2 (212 g/kg), FO2CO4 (232 g/kg) and FO0CO6 (244 g/kg). Blood chemistry levels were not influenced in response to test diets: hematocrit (36–33%), glucose (Glu = 78.3–71.3 mg/dL), total protein (T-pro = 3.1–3.8 g/dL), total cholesterol (T-Chol = 196.0–241 mg/dL), blood urea nitrogen (BUN = 9.0–14.6 mg/dL), total bilirubin (T-Bil = 0.4–0.5 mg/dL), triglyceride (TG = 393.3–497.6 mg/dL), alanine aminotransferase test (ALT = 50–65.5 UL/L), aspartate aminotransferase test (AST = 38–69.3 UL/L). A remarkable modulation was observed in catalase (CAT) and superoxide dismutase (SOD) activities in the liver, as CAT and SOD values were lower with the complete FO substitution with CO (0F6C), and the highest values were observed in the control and (4F2C). This study indicates that red seabream may have the ability to maintain LC-PUFAs between tissues and diets, and CO substitution of FO could improve both lipid metabolism and oxidation resistance as well as maintain digestibility. In conclusion, dietary FO can be replaced up to 100% or 95% by CO in the diets of red seabream as long as n-3 HUFA, EPA, and DHA are incorporated at the recommended level.

关键字
亚麻荠油；肝脏组织学；氧化状态；红鲷

期刊
动物：第 11 卷第 7 期

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