Institute of Agricultural Science and Technology, Kyungpook National University, Daegu 41566, Republic of Korea.
Division of Animal and Dairy Science, Chungnam National University, Daejeon 34134, Republic of Korea.
J Microbiol Biotechnol. 2024 Mar 28;34(3):516-524. doi: 10.4014/jmb.2311.11001. Epub 2023 Dec 15.
This study aimed to investigate the effects of dietary spray-dried plasma (SDP) on the gut microbiota of lactating sows and their piglets. A total of 12 sows were randomly assigned to one of two dietary treatment groups in a completely randomized design. The treatments were a sow diet based on corn and soybean meal (CON), and a CON diet with an added 1% SDP. The sows were fed the dietary treatments from d 30 before farrowing to weaning (d 28). The fecal samples of three sows from each treatment and two of their randomly selected piglets were collected to verify their fecal microbiota. There were no differences in the alpha diversity and distinct clustering of the microbial communities in the sows and their piglets when SDP was added to the sow diets from late gestation to weaning. The fecal microbiota of the lactating sows and their piglets showed a higher relative abundance of the phylum Bacteroidota and genus and and showed a lower relative abundance of the phylum Bacillota and genus , , and in the sows fed the SDP diet than those fed the CON diet. Overall, these results show that the addition of SDP to the sow diet during lactation altered the gut environment with positive microbial composition changes. These results were similar in the nursing piglets, suggesting that the control of the sow diets during lactation may contribute to the intestinal health and growth in piglets after weaning.
本研究旨在探讨饲粮喷雾干燥血浆（SDP）对哺乳期母猪及其仔猪肠道微生物群的影响。采用完全随机设计，将 12 头母猪随机分为两组饲粮处理组，一组为基于玉米和豆粕的母猪饲粮（CON），另一组为添加 1% SDP 的 CON 饲粮。母猪从分娩前 30 天（d 30）至断奶（d 28）饲喂饲粮处理。从每个处理组的 3 头母猪和随机选择的 2 头仔猪中收集粪便样本，以验证其粪便微生物群。从妊娠后期到断奶时向母猪饲粮中添加 SDP 并没有改变母猪及其仔猪的微生物群落的 alpha 多样性和明显聚类。哺乳期母猪及其仔猪的粪便微生物群中，Bacteroidota 门和属 和 的相对丰度较高，而 Bacillota 门和属,, 和 的相对丰度较低，与饲喂 CON 饲粮的母猪相比，饲喂 SDP 饲粮的母猪较高。总的来说，这些结果表明，在哺乳期母猪饲粮中添加 SDP 会改变肠道环境，产生积极的微生物组成变化。在哺乳仔猪中也观察到了类似的结果，这表明哺乳期母猪饲粮的控制可能有助于仔猪断奶后的肠道健康和生长。
