ArticleFrontiers in veterinary science2026
Characterization of fecal bacterial microbiomes according to fecal color, consistency, and sample type in piglets before and after weaning.
Article in Frontiers in veterinary science, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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8 authors.
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Abstract
Fecal samples are widely used as a proxy for the large intestinal microbiota; however, phenotypic characteristics (e.g., color and consistency) may be associated with divergent microbial profiles, especially around weaning, when diet and physiological adaptation rapidly alter gut function. The relationship between fecal phenotype, sample type, and piglet gut microbiota under physiological conditions remains poorly understood. This study investigated the bacterial communities in different fecal phenotypes of piglets shortly before and immediately after weaning. The fecal consistency of 192 piglets across two replicate batches was scored daily from day of life (DoL) 28 to 36, and fecal or rectal swab samples were collected at DoL28 and DoL33. The samples were classified by type (feces/swab), color (brown/yellow), and consistency (balls/liquid). DNA was extracted for quantification of total bacterial gene copies and 16S rRNA gene sequencing, and microbial composition was analyzed using Quantitative Insights Into Microbial Ecology 2 (QIIME2), Statistical Analysis System (SAS), and R. Fecal consistency changed markedly over time, shifting from predominantly ball-shaped on DoL28-32 to softer feces thereafter (
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