Lan Ruixia, Kim Inho
Department of Animal Science, College of Agriculture, Guangdong Ocean University, Zhanjiang, China.
Department of Animal Resource and Science, Dankook University, Cheonan, South Korea.
Anim Sci J. 2018 Dec;89(12):1673-1679. doi: 10.1111/asj.13111. Epub 2018 Sep 30.
This study was aimed to evaluate the effects of organic acid (OA) and medium-chain fatty acid (MCFA) blends on production performance of sows and their litters. A total of 36 sows (Landrace × Yorkshire, average parity is 3.3, SE = 0.2) were randomly allocated to three treatments with 12 replicates. Dietary treatments were as follows: CON, basal diet; MC1, CON + 0.1% OA, and MCFA blends; MC2, CON + 0.2% OA, and MCFA blends. During lactation, no differences were observed in body weight (BW) loss, average daily feed intake, backfat thickness, digestibility of dry matter, nitrogen, or energy of sows. There were linear increase (p < 0.05) in BW and average daily gain of sucking piglets. On parturition and weaning day, there was a linear increase (p < 0.05) in fecal Lactobacillus counts, as well as a linear decrease (p < 0.05) in fecal Escherichia coli counts of sows on weaning day. The sucking piglets also had a linear increase (p < 0.05) in fecal Lactobacillus counts and a linear decrease (p < 0.05) in fecal E. coli counts. In conclusion, dietary supplementation of OA and MCFA blends in sows exerts beneficial effects to sows shifted fecal microbiota by increasing Lactobacillus and decreased E. coli counts. It also improved the performance of piglets.
本研究旨在评估有机酸（OA）和中链脂肪酸（MCFA）混合物对母猪及其仔猪生产性能的影响。总共36头母猪（长白猪×大白猪，平均胎次为3.3，标准误=0.2）被随机分配到三个处理组，每组12个重复。日粮处理如下：对照组（CON），基础日粮；MC1组，CON + 0.1% OA和MCFA混合物；MC2组，CON + 0.2% OA和MCFA混合物。在哺乳期，母猪的体重损失、平均日采食量、背膘厚度、干物质、氮或能量的消化率均未观察到差异。哺乳仔猪的体重和平均日增重呈线性增加（p<0.05）。在分娩和断奶日，母猪粪便中乳酸杆菌数量呈线性增加（p<0.05），断奶日母猪粪便中大肠杆菌数量呈线性减少（p<0.05）。哺乳仔猪粪便中乳酸杆菌数量也呈线性增加（p<0.05），粪便中大肠杆菌数量呈线性减少（p<0.05）。总之，在母猪日粮中添加OA和MCFA混合物对母猪有益，通过增加乳酸杆菌数量和减少大肠杆菌数量改变了粪便微生物群。它还提高了仔猪的性能。
