ArticleThe Veterinary record2025
Influence of ewe metabolic status on failure of passive transfer of immunity and lamb production in a UK lowland flock.
Article in The Veterinary record, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
What it found
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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
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Who cites it
4 citing papers in PubMed.
- Biotechnological Advancements in Ovine Bioactives: Mapping Protein Expression Trends and Immuno-Lipidomic Dynamics for Functional Food Applications.International journal of molecular sciences · 2026Article
- Evaluating the feasibility of using digital Brix refractometry to determine the passive immune status of lambs.The Veterinary record · 2026Article
- Use of serum total protein as a proxy for passive transfer status in lambs.The Veterinary record · 2025Article
- Influence of ewe metabolic status on failure of passive transfer of immunity and lamb production in a UK lowland flock.The Veterinary record · 2025Article
Corrections and comments
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Authors and funding
13 authors.
Funding
Abstract
backgroundInadequate ewe nutrition is an important driver for neonatal lamb losses, although the association of ewe metabolic status with lamb passive transfer status is poorly understood. This study investigates the relationship between ewe metabolic status, neonatal lamb losses, failure of passive transfer of immunity (FPTI) and lamb growth.
methodsEwes were blood sampled to assess metabolic status 3 weeks prior to the start of lambing. Within 8‒24 hours of birth, individual lamb weights, sex and litter size were recorded. Lambs were blood sampled to measure serum immunoglobulin G (IgG) to assess FPTI, and lamb outcomes were recorded until weaning.
resultsEwes had decreased odds of losing a lamb if they were scanned with twins and had a higher plasma albumin concentration. Lambs had an increased risk of FPTI (serum IgG < 24 mg/mL) if they were triplet lambs and if their mothers had increased plasma beta-hydroxybutyrate concentrations. Lambs with FPTI had increased odds of reduced growth (<0.26 kg/day). LIMITATIONS: This study was conducted in a single, well-managed, lowland flock. Therefore, the results may not be more widely generalisable.
conclusionsThis study highlights the potential association between ewe nutritional status, FPTI and lamb growth and indicates a need for a consensus IgG cut-off value for FPTI in lambs.
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