中文摘要：

内脏 microbiota 玩处于主人健康和疾病的重要角色。几个因素，特别地抗菌素，影响猪的内脏 microbiota。跨 fostering 作为一个常规惯例被使用了使相等崽尺寸，减少预先断奶的死亡并且增加身体重量。然而，盲肠的 microbiota 上的跨 fostering 的效果是不清楚的。在这研究，我们促进了三头 Jinhua 猪到约克郡播种。促进 Jinhua 小猪变得比他们的生物兄弟显著地快。探索小猪的盲肠的 microbiota 是否将在促进期间改变，我们由检验 16S rDNA 的 V3 hypervariable 区域描绘了所有小猪的盲肠的 microbiota。我们用 Illumina HiSeq 2000 站台在这些小猪观察了改变的盲肠的 microbiota，并且这在促进以后伴有生长率的增加。在促进 Jinhua 小猪的相对许多 Bacteroidetes 与他们的生物兄弟相比被减少，尽管与他们的新同窝出生的人比较仍然更高。贝它差异分析也证明采用的 Jinhua 小猪的盲肠的 microbiota 向他们的步兄弟与移动不同于他们的生物兄弟。我们当生长率增加了时，小猪的盲肠的 microbiota 在跨 fostering 以后被改变的数据表演。

英文摘要：

Gut microbiota health and diseases. Several play important roles in host factors, in particular antibiot- ics, affect the gut microbiota of pigs. Cross-fostering has been applied as a regular practice to equalize litter size, reduce pre-weaning mortality and increase body weight. However, the effect of cross-fostering on cecal microbiota is unclear. In this study, we fostered three Jinhua pigs to a Yorkshire sow. The fostered Jinhua piglets grew signifi- cantly faster than their biological siblings. To explore whether the cecal microbiota of piglets will alter during fostering, we characterized the cecal microbiota of allpiglets by examining the V3 hypervariable region ot 165 rDNA. We observed altered cecal microbiota in these piglets using the Illumina HiSeq 2000 platform, and this was accompanied with an increase in growth rate after fostering. The relative abundance of Bacteroidetes in the fostered Jinhua piglets was decreased compared with their biological siblings, although still higher in comparison with their new littermates. Beta-diversity analysis also showed that the cecal microbiota of the adopted Jinhua piglets differed from their biological siblings with a shift toward their step-siblings. Our data show that cecal microbiota of piglets were altered after cross-fostering while the growth rate increased.