ArticleJournal of dairy science2021
The nasopharyngeal microbiota of preweaned dairy calves with and without ultrasonographic lung lesions.
Article in Journal of dairy science, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
12 citing papers in PubMed, 1 synthesis or guideline pooled it, 12 citations in OpenAlex.
- Effect of bovine respiratory disease on the respiratory microbiome: a meta-analysis.Frontiers in cellular and infection microbiology · 2023Pooled it
- Nasopharyngeal microbiome and resistome profiles in dairy calves fed milk replacer with low-level β-lactams.JDS communications · 2026Article
- Microbial landscapes in dairy cow diseases: from localized dysbiosis to inter-organ axes.NPJ biofilms and microbiomes · 2026Review
- Associations between subclinical bovine respiratory disease, growth patterns, and the nasal and fecal microbiota in dairy replacement heifers: a retrospective study.Frontiers in veterinary science · 2026Article
- Decoding the dynamics of calves' respiratory and gut microbiota: exploring stability, resistance, and individual patterns.Animal microbiome · 2025Article
- Stochasticity Highlights the Development of Both the Gastrointestinal and Upper-Respiratory-Tract Microbiomes of Neonatal Dairy Calves in Early Life.Animals : an open access journal from MDPI · 2025Article
- The association of lung consolidation in beef × dairy cattle at weaning with feedlot growth performance, carcass characteristics, liver health, and liver microbiome diversity.Journal of animal science · 2025Article
- Heat abatement during the pre-weaning period: effects on the nasal microbiota of Holstein male calves.Journal of animal science · 2025Article
- Dynamics of the nasopharyngeal microbiome of apparently healthy calves and those with clinical symptoms of bovine respiratory disease from disease diagnosis to recovery.Frontiers in veterinary science · 2023Article
- Probiotics in milk replacer affect the microbiome of the lung in neonatal dairy calves.Frontiers in microbiology · 2023Article
- Assessing the effects of experimental bacterial challenge with Pasteurella multocida and ampicillin on the respiratory microbiota of pre-weaned Holstein calves.Veterinary microbiology · 2022Article
- The Airway Pathobiome in Complex Respiratory Diseases: A Perspective in Domestic Animals.Frontiers in cellular and infection microbiology · 2021Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 1 institution in 1 country.
Funding
Abstract
The primary objective of this cross-sectional study was to identify associations between the diversity and composition of the nasopharyngeal (NP) microbiota and pneumonia status, as diagnosed by ultrasonography (US), in preweaned dairy calves. Characteristics of the NP microbiota were compared between calves with and without pneumonia, as diagnosed by US. Secondary objectives were to compare the composition of the NP microbiota between calves by age, clinical respiratory score (CRS), and previous antibiotic therapy. Holstein heifer calves (n = 50) from a southern Wisconsin dairy were enrolled at either 3 or 6 wk of age; 4 calves were sampled at both time points. Antibiotic treatment history was also collected for the 30 d before enrollment. For the purpose of this study, pneumonia was defined as having lobar pneumonia, as diagnosed by US, in at least 1 lung lobe. Following examination by CRS and US, a deep nasopharyngeal swab was obtained for 16S rRNA amplicon sequencing. Alpha diversity was reduced in calves that were CRS positive, and beta diversity tended to be different in calves previously treated with antibiotics and in calves that were CRS positive. Microbial diversity was not different between calves with and without pneumonia. The most dominant genus identified was Mycoplasma spp.; however, there was no association between relative abundance (RA) and pneumonia status. The median RA of Mycoplasma spp. was increased by 25 (95% confidence interval, CI: 3, 40) in calves at 3 wk of age compared with 6 wk of age. The median RA of Pasteurella spp. was increased by 1.5 (95% CI: 0.1, 3) in calves with pneumonia, as diagnosed by US, compared with calves without pneumonia. Additionally, Pasteurella spp. was increased by 2.3 (95% CI: 0, 9) in CRS-positive calves compared with CRS-negative calves. The median RA of Psychrobacter spp. was increased by 2 (95% CI: 0, 12) and median RA of Chryseobacterium spp. was increased by 0.15 (95% CI: 0, 2) in calves that were not treated previously with antibiotics compared with calves previously treated with antibiotics.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.