To fully understand the
bacterial diversity and community structure of goat milk, V3-V4 region of
bacterial 16S rRNA gene in metagenomic DNA of goats’ milk samples from
Yangling, Baoji and Weinan region of Shaanxi Province were analyzed using
high-throughput sequencing. A total of 225424 high-quality sequences were
obtained, with an average of 673 OTUs per sample. The analysis of bacterial
communities in goat milk from different regions showed that there are 27
bacterial phylum,Proteobacteriadominated the microbiota of all goat milk samples in Guanzhong region of
Shaanxi Province, and Weinan area accounted for the greatest proportion with
91.15%, Yangling and Baoji area accounted for 62.44% and 60.33%, respectively.
There are 354 bacteria genus, the dominant microorganisms of bacteria were
identified asEnterobacter, the proportion
in the three areas were 37.41%, 33.82% and 2.87% respectively. At the species
level,Pseudomonas aeruginosawere
dominant in 826 bacteria species, the proportion in the three areas were 7.96%,
4.34% and 3.20%, respectively, and Weinan area had significantly higher
contents ofPseudomonas aeruginosathan Yanglin area and Baoji area. The diversity analysis of bacterial
population indicated that bacterial community of goat milk in Yangling and
Baoji areas had a higher richness and diversity, while Weinan areas had a lower
richness and diversity. The bacteria distribution in diverse goat milk had
certain difference, while the gaps in bacterial community structure were smaller,
exhibited substantial similarities.
GAO Jia-yuan et al
. Analysis of bacterial diversity in goats’ milk from Guanzhong region of Shaanxi province[J]. Food and Fermentation Industries, 2018
, 44(1)
: 52
.
DOI: 10.13995/j.cnki.11-1802/ts.015452