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September 10, 2025Poultry ScienceOpen Access

Improving Health and Productivity in Laying Hens with the Phage Cocktail SalmoFree®

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Field study shows phage cocktail improves health metrics in laying hens, indicating potential for antibiotic-free poultry production.

SalmoFree® effectively reduced mortality and improved egg production in laying hens, suggesting its potential in commercial settings.
In trials, mortality was controlled without antibiotics where phages were administered, unlike baseline barns that required antibiotics.
Histopathological findings indicated tissue lesions consistent with salmonellosis in baseline groups, emphasizing the phage's protective role.
Although no correlation was found, genomic diversity and resistance profiles of Escherichia coli were assessed in phage-treated hens.

Hernández-Villamizar et al. (2025) studied this question.

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