Abstract：
The objective of the study was to evaluate the effects of trace mineral supplementation in sows during gestation and lactation on the performance and health status of sows and their offspring. Sows (n = 30; Landrace × Yorkshire; avg parity = 3.9) were randomly allocated into two dietary treatments. Sows received a basal diet supplemented with 12 mg/kg Cu, 30 mg/kg Fe, 90 mg/kg Zn, 70 mg/kg Mn, 0.30 mg/kg Se, and 1.5 mg/kg I from an inorganic trace mineral source (ITM) or a blend of hydroxychloride and organic trace mineral source (HOTM) from day 1 of gestation until the end of the lactation period at day 21. Compared to the ITM, the HOTM supplementation increased (P < 0.05) both litter birth weight and individual piglet birth weight. Although not statistically significant, HOTM tended to increase (P = 0.069) the level of lactose in colostrum. HOTM increased (P < 0.05) the concentration of Mn and Se in the colostrum, milk, and serum of sows and/or piglets. Notably, the Zn concentration in the serum of sows was higher in sows supplemented with ITM compared to HOTM. Moreover, HOTM increased (P < 0.05) the activities of GPX and SOD in gestating sows and piglets, as well as increased (P < 0.05) cytokines (IL-1β, TNF-α, and IL-10) in the serum of sows. The immunoglobulins (IgA, IgG, and IgM) also increased in sows and/or piglets at certain experimental time points. In conclusion, HOTM supplementation positively affected piglet development and improved the health status of sows and piglets potentially by regulating redox homeostasis and immunity.
摘要：
该研究的目的是评估妊娠和哺乳期母猪补充微量矿物质对母猪及其后代的生产性能和健康状况的影响。母猪（n=30；长白×约克郡；平均奇偶校验=3.9）被随机分配到两种饮食处理中。母猪接受补充12mg/kgCu的基础日粮，30mg/kgFe，90mg/kgZn，70mg/kgMn，0.30毫克/千克硒，从妊娠第1天直到第21天的泌乳期结束，来自无机痕量矿物质源（ITM）或羟基氯化物和有机痕量矿物质源（HOTM）的混合物的1.5mg/kgI。与ITM相比，补充HOTM增加了产仔出生体重和个别仔猪出生体重（P<0.05）。虽然没有统计学意义，HOTM倾向于增加初乳中的乳糖水平（P=0.069）。HOTM增加了初乳中Mn和Se的浓度（P<0.05），牛奶，和母猪和/或仔猪的血清。值得注意的是,补充ITM的母猪血清中的锌浓度高于HOTM。此外，HOTM提高了妊娠母猪和仔猪的GPX和SOD活性（P<0.05），以及增加（P<0.05）的细胞因子（IL-1β，TNF-α,母猪血清中的IL-10）。免疫球蛋白（IgA，IgG,和IgM）在某些实验时间点在母猪和/或仔猪中也增加。总之,补充HOTM可能通过调节氧化还原稳态和免疫力来积极影响仔猪的发育并改善母猪和仔猪的健康状况。
