中国畜牧兽医 ›› 2026, Vol. 53 ›› Issue (1): 245-255.doi: 10.16431/j.cnki.1671-7236.2026.01.022

• 营养与饲料 • 上一篇    下一篇

黑果枸杞提取物对八眉三元猪脂质代谢的影响

陈林(), 刘嘉逸, 吴华(), 张源, 邓智杰, 韩耀辉, 史银亮   

  1. 青海大学农牧学院,西宁 810016
  • 修回日期:2025-07-18 出版日期:2026-01-05 发布日期:2025-12-26
  • 通讯作者: 吴华 E-mail:1825898245@qq.com;qhwuhua@qhu.edu.cn
  • 作者简介:陈林,E-mail:1825898245@qq.com
  • 基金资助:
    绿色复合微生态制剂的研发和应用(2022-QY-219)

Effects of Lycium ruthenicum Murr. Extract on Lipid Metabolism in Bamei Ternary Hybrid Pigs

CHEN Lin(), LIU Jiayi, WU Hua(), ZHANG Yuan, DENG Zhijie, HAN Yaohui, SHI Yinliang   

  1. College of Agriculture and Animal Husbandry,Qinghai University,Xining 810016,China
  • Revised:2025-07-18 Online:2026-01-05 Published:2025-12-26
  • Contact: WU Hua E-mail:1825898245@qq.com;qhwuhua@qhu.edu.cn

摘要:

目的 试验以八眉三元猪为研究对象,通过在饲粮中添加不同浓度的黑果枸杞提取物,探究其对猪血脂指标、脂肪组织细胞形态学以及脂质代谢相关因子mRNA和蛋白表达的影响。 方法 选取48头(50±2)日龄、平均体重为(7.83±0.52)kg的八眉三元猪,随机分为4组,每组3个重复,每个重复4头猪,分别饲喂基础饲粮(CON组)和添加5、10、15 g/kg黑果枸杞提取物的饲粮(LE、ME、HE组),试验期42 d,试验结束时,每重复屠宰2头猪,采集血液、腹部皮下和附睾脂肪组织。测定血脂指标;观察脂肪组织细胞形态;检测脂肪组织中脂质代谢相关因子mRNA和蛋白表达水平。 结果 与CON组相比,①LE、ME、HE组猪血清甘油三酯(TG)含量显著降低(P<0.05);LE组猪血清总胆固醇(TCH)水平显著降低(P<0.05),血清高密度脂蛋白胆固醇(HDL-C)水平显著升高(P<0.05)。②ME组猪腹部皮下脂肪组织中脂滴面积显著降低(P<0.05);附睾脂肪组织中脂滴面积无显著差异(P>0.05)。③LE、ME、HE组猪腹部皮下脂肪和附睾脂肪中脂质合成相关因子过氧化物酶体增殖物激活受体γ(PPARγ)、乙酰辅酶A羧化酶1(ACC)、甾醇调节元件结合转录因子1(SREBP1)的mRNA及蛋白表达显著或极显著降低(P<0.05;P<0.01),脂质分解相关因子肉碱棕榈酰转移酶1(CPT1)、激素敏感性脂肪酶(HSL)的mRNA及蛋白表达显著或极显著上调(P<0.05;P<0.01)。 结论 饲粮中添加黑果枸杞提取物可通过抑制脂质合成相关因子(PPARγ、ACC、SREBP1)的表达,并促进脂质分解相关因子(CPT1、HSL)的表达,从而显著减少八眉三元猪腹部皮下脂肪的脂质沉积,其中以添加10 g/kg效果最佳。

关键词: 黑果枸杞提取物; 八眉三元猪; 血脂指标; 细胞形态; 脂质代谢

Abstract:

Objective This study aimed to investigate the effects of dietary supplementation with Lycium ruthenicum Murr. extract of different concentrations on lipid profiles, adipose tissue morphology, and the expression of lipid metabolism-related genes and proteins in Bamei ternary hybrid pigs. Method Forty-eight Bamei ternary hybrid pigs aged (50±2) days with an average weight of 7.83 kg±0.52 kg were randomly divided into four groups, with three replicates per group and four pigs per replicate. The pigs were fed either a basal diet (CON group) or diets supplemented with 5, 10, and 15 g/kg of Lycium ruthenicum Murr. extract (LE, ME, and HE groups), respectively. The experimental period was 42 days. At the end of the experiment, two pigs from each replicate were slaughtered, and blood, abdominal subcutaneous fat, and epididymal fat tissue were collected for the measurement of serum lipid levels, observation of fat tissue cell morphology, and mRNA and protein expression of lipid metabolism-related factors in fat tissues. Result Compared with CON group, ①Serum triglyceride (TG) levels of pigs in LE, ME, and HE groups were significantly reduced (P<0.05), serum total cholesterol (TCH) levels were significantly reduced (P<0.05), and serum high-density lipoprotein cholesterol (HDL-C) levels in LE group were significantly increased (P<0.05). ②The area of lipid droplets in the subcutaneous adipose tissue of the abdomen of pigs in ME group was significantly reduced (P<0.05), while there was no significant difference in the area of lipid droplets in the epididymal adipose tissue (P>0.05). ③ In LE, ME, and HE groups, the mRNA and protein expression of lipid synthesis-related factors (PPARγ, ACC, and SREBP1) in abdominal subcutaneous fat and epididymal fat were significantly or extremly significantly reduced (P<0.05 or P<0.01), while the mRNA and protein expression of lipid degradation-related factors (CPT1 and HSL) were significantly or extremly significantly up-regulated (P<0.05 or P<0.01). Conclusion Adding Lycium ruthenicum Murr. extract to the diet could significantly reduce lipid deposition in the abdominal subcutaneous fat of Bamei ternary hybrid pigs by inhibiting the expression of lipid synthesis-related factors (PPARγ,ACC,and SREBP1) and promoting the expression of lipid degradation-related factors (CPT1 and HSL), with the 10 g/kg addition showing the best effect.

Key words: Lycium ruthenicum Murr. extract; Bamei ternary hybrid pigs; blood lipid indicators; cell morphology; lipid metabolism

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