ArticleThe Veterinary record2026
Pseudorandomised controlled trial of a novel navel barrier solution versus 10% iodine to protect navel and ear tag sites of neonatal lambs.
Article in The Veterinary record, 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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4 authors.
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Abstract
backgroundDuring lambing, 10% iodine is often used to protect neonatal navel and ear tag sites. The evidence for its effectiveness is sparse. Recently, a specific navel barrier solution (NBS) was developed. Here, an in vivo field trial compared the two treatments.
methodsTen farms reported data from 6840 lambs. The navel and ear tag sites of alternate lambs were treated with usual care-iodine or NBS. Usual care-iodine was 10% iodine for all navels and for most ear tag sites.
resultsMortality was 8.36% for the usual care-iodine group and 9.34% for the sub-group where only iodine was used for navel and ear tag sites. It was 6.51% for NBS (p < 0.004 vs. iodine groups). Mixed-effect generalised linear modelling gave an adjusted odds ratio (OR) for mortality of 0.76 for NBS (95% confidence interval [CI]: 0.63-0.91; p = 0.003). Spraying navels was inferior to dipping them for survival (OR 2.14; 95% CI: 1.11-4.09; p = 0.02). Farmers did not report differences in joint ill between the groups. LIMITATIONS: For practical implementation, the study was non-blinded and pseudorandomised. Non-appearance of a lamb at the week 8 weighing event was taken as a sensitive and objective proxy for death.
conclusionOptimal navel and ear tag site application during lambing efficiently protects against neonatal deaths. NBS is superior to 10% iodine, and dipping outperforms spraying for improvement of lamb survival.
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