背景:哺乳妈妈可以调节后代的肠道微生物组演替。然而,目前尚不清楚这些影响是否是长期的,以及它对仔猪的生长性能有什么影响。本研究旨在建立仔猪交叉培养模型,并探讨母体环境对肠道菌群的影响。甚至后代的生长表现,如果这种效果能长期维持。
结果:四组仔猪产生如下(n=12):由出生母亲(Dd)或约克郡母猪(Yd)护理的杜洛克仔猪,由杜洛克母猪(Dy)或其生母(Yy)护理的约克郡仔猪。研究发现,杂交育肥能长期提高仔猪的生长性能。仔猪肠道菌群主要由断奶前哺乳妈妈的品种决定,断奶后越来越受到它们品种的影响,但是生母品种的影响仍然存在。线性判别分析(LDA)效应大小(LEfSe)分析和Spearman相关分析显示,Butyricicimonas和Alistipes,在断奶前受到哺乳妈妈的影响,断奶前与仔猪生长性能呈较强的正相关。Candidatus_Soleaferrea和密螺旋体,断奶后受到哺乳妈妈和仔猪品种的影响,断奶后仔猪生长性能显著负相关。
结论:我们的结果表明,仔猪的品种及其出生妈妈都会长期影响仔猪的肠道菌群,即使在断奶后。此外,这种效应可能与仔猪的生长性能有关。©2022化学工业学会。
BACKGROUND: Nursing mom can regulate the gut microbiome succession in offspring. However, it remains unclear whether these effects are long-term and what effect it has on the growth performance of piglets. This study aimed to develop a cross-fostering model of piglets and investigate the effect of maternal environment on gut microbiota, even the growth performance of the offspring, and if this effect could be maintained in the long term.
RESULTS: Four groups of piglets were generated as follows (n = 12): Duroc piglets nursed by their birth mom (Dd) or Yorkshire sows (Yd), Yorkshire piglets nursed by Duroc sows (Dy) or their birth mom (Yy). The study found that cross-fostering improved the growth performance of piglets for a long time. The gut microbiota of piglets was mainly determined by the breeds of nursing moms before weaning, and it was more and more influenced by their breeds after weaning, but the influence of birth mom breeds still existed. The linear discriminant analysis (LDA) effect size (LEfSe) analysis and Spearman correlation analysis showed that Sutterella, Butyricimonas and Alistipes, which were affected by nursing mom before weaning, had a strong positive correlation with the growth performance of piglets before weaning. Candidatus_Soleaferrea and Treponema, which were affected by both nursing mom and piglet breed after weaning, were significantly negatively correlated with the growth performance of piglets long after weaning.
CONCLUSIONS: Our results revealed that both the breeds of piglets and their birth moms influence the gut microbiota of piglets for a long time, even after weaning. Additionally, this effect might be related to the growth performance of piglets. © 2022 Society of Chemical Industry.