›› 2019, Vol. 31 ›› Issue (7): 1057-1065.DOI: 10.3969/j.issn.1004-1524.2019.07.04

• Animal Science • Previous Articles     Next Articles

Differences in jejunum microbes of goats with different phosphorus true digestibility

JIN Lei, WANG Lizhi*, WANG Zhisheng, XUE Bai, PENG Quanhui   

  1. Animal Nutrition Institute, Sichuan Agricultural University, Chengdou 611130, China
  • Received:2018-11-05 Online:2019-07-25 Published:2019-08-07

Abstract: Improving animal digestion and utilization efficiency of phosphorus were of great significance for reducing animal breeding costs and environmental pollution. The objective of this study was to compare the structure of jejunum microorganism of goats with different true digestibility of feed phosphorus using Illumina MiSeq sequencing technology. Twenty-four Nubian black goats, aged 10 months on average and weighed (24.25±2.47)kg, were selected as the experimental animals. The contents of jejunum of each goat in the HP and LP groups were collected and total genomic DNA was extracted, and the high variable region of 16S rRNA gene of bacteria was sequenced by high throughput sequencing platform. Bioinformatics analysis of sequencing data was carried out using QIIME software. At the phylum level, Firmicutes and Bacteroidetes were the dominant bacteria of the jejunum microbiota in goats, and the relative abundance of Firmicutes in HP group was extremely significantly lower than that in the LP group (P<0.01), while the relative abundance of Bacteroidetes was extremely significantly higher than that in the LP group(P<0.01). At the genus level, the relative abundances of Prevotella, Rikenellaceae_RC9_gut_group, Fibrobacter, Ruminococcus_2 and Clostridium_sensu_stricto_1 in HP group were significantly higher than that in the LP group (P<0.05), and the relative abundances of Desulfovibrio and Victivallis were significantly lower than that in LP group(P<0.05). There were significant differences in structure of jejunum microorganisms among goats with different true digestibility of feed phosphorus.

Key words: goat, true digestibility of phosphorus, jejunum, microorganism

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