Song Hanqing, Chai Wei, Yang Fei, Ren Man, Chen Fang, Guan Wutai, Zhang Shihai
Guangdong Provincial Key Laboratory of Animal Nutrition Control, College of Animal Science, South China Agricultural University, Guangzhou, China.
College of Animal Science, Anhui Science and Technology University, Fengyang, China.
Front Vet Sci. 2021 Aug 16;8:714068. doi: 10.3389/fvets.2021.714068. eCollection 2021.
Monoglyceride and diglyceride (MGDG) have antiviral and antibacterial properties and act as emulsifiers to increase dietary lipid digestibility. The primary aim of this trial was to investigate the effects of dietary MGDG supplementation on the reproductive performance and health status of sows during late gestation and lactation. One hundred sows (Landrace × Large White, mean parity of 4.59) were randomly allocated to groups receiving two different diets with 4% soybean lipids or 4% MGDG from day 85 of gestation to day 21 of lactation. Milk samples were collected on the day of farrowing (colostrum) and on day 14 of lactation, and blood samples were collected from the sows on days 0, 14, and 21 of lactation. Compared with control sows, sows fed MGDG showed no significant differences in reproductive performance ( > 0.05), but sow back fat thickness loss decreased during lactation ( < 0.05). There was a significant decrease in TNF-α concentrations in colostrum in the MGDG-supplemented sows compared with that in the soybean lipid-supplemented sows ( < 0.05). Dietary MGDG supplementation decreased sow plasma IL-8 concentrations on day 0 of lactation and IL-18 concentrations on days 14 and 21 of lactation ( < 0.05). Administration of MGDG increased the glucose and total cholesterol concentrations in sow plasma on day 14 and day 21, respectively ( < 0.05). The findings in this study suggest that MGDG supplementation could be effective in reducing back fat loss, decreasing inflammatory factor levels, and controlling total cholesterol (TCHO) concentrations during lactation.
甘油单酯和甘油二酯（MGDG）具有抗病毒和抗菌特性，并作为乳化剂提高膳食脂质的消化率。本试验的主要目的是研究在妊娠后期和哺乳期给母猪日粮中添加MGDG对其繁殖性能和健康状况的影响。100头母猪（长白×大白，平均胎次4.59）从妊娠第85天至哺乳第21天被随机分配到两组，分别饲喂含4%大豆脂质或4% MGDG的两种不同日粮。在分娩当天（初乳）和哺乳第14天采集乳汁样本，并在哺乳第0、14和21天采集母猪的血液样本。与对照母猪相比，饲喂MGDG的母猪繁殖性能无显著差异（P>0.05），但哺乳期母猪背部脂肪厚度损失减少（P<0.05）。与饲喂大豆脂质的母猪相比，添加MGDG的母猪初乳中TNF-α浓度显著降低（P<0.05）。日粮中添加MGDG可降低哺乳第0天母猪血浆IL-8浓度以及哺乳第14天和21天的IL-18浓度（P<0.05）。添加MGDG分别在哺乳第14天和第21天提高了母猪血浆中的葡萄糖和总胆固醇浓度（P<0.05）。本研究结果表明，添加MGDG可有效减少哺乳期背部脂肪损失，降低炎症因子水平，并控制总胆固醇（TCHO）浓度。
