Effects of enrofloxacin treatment on the bacterial microbiota of milk from goats with persistent mastitis

Scientific Reports
Richard Costa PolveiroMaria Aparecida Scatamburlo Moreira

Abstract

Antibiotic resistance has become a major concern for human and animal health. As fluoroquinolones have been extensively used in human and veterinary medicine, there has also been the rapid emergence and spread of antimicrobial resistance around the world. Here, we analysed the microbiome of goat milk using samples from healthy goats and those diagnosed with persistent mastitis and treated using the antibiotic enrofloxacin with 16S rRNA amplicon sequencing. We selected a group of 11 goats and 22 samples of milk that did not respond clinically to enrofloxacin treatment. Milk samples were evaluated before and after treatment to verify changes of the microbiota; the three first lactating goats were selected from the healthy control group. The milk samples from the healthy control animals presented a larger abundance of different species of bacteria of the Staphylococcus genus, but a smaller number of different genera, which indicated a more specific niche of resident bacteria. The Firmicutes phylum was predominantly different between the studied groups. Samples from before-treatment animals had a higher number of new species than those from the control group, and after being treated again. These microbiota received new bacteria, in...Continue Reading

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Citations

Feb 13, 2021·Frontiers in Veterinary Science·Salah Uddin AhmadJiyu Zhang
Jun 3, 2021·Animals : an Open Access Journal From MDPI·Sergei SokolovFedor Brovko
Aug 7, 2021·Research in Veterinary Science·Marion ToquetEsther Bataller

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Methods Mentioned

BETA
amplicon sequencing

Software Mentioned

DADA2 ’ pipeline
Idemp
PICRUSt
R package ‘
DADA2 ’
Greengenes
STAMP
Adonis
phyloseq ’
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