Mitigating Effects of <i>Rosmarinus officinalis</i> Essential Oil and Sugar Beet Pulp on Immune Response and Growth Performance of Heat-Stressed Lambs

Dietary supplementation under high ambient temperatures can be considered crucial for supporting immune responses in livestock. In the present paper, <i>Rosmarinus officinalis</i> essential oil (REO) alone and in combination with dried sugar beet pulp (REO + B) was included in the diet o...

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Main Authors: Maria Giovanna Ciliberti, Rosaria Marino, Mariangela Caroprese, Cristina Stango, Agostino Sevi, Marzia Albenzio
Format: Article
Language:English
Published: MDPI AG 2025-07-01
Series:Animals
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Online Access:https://www.mdpi.com/2076-2615/15/15/2241
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Summary:Dietary supplementation under high ambient temperatures can be considered crucial for supporting immune responses in livestock. In the present paper, <i>Rosmarinus officinalis</i> essential oil (REO) alone and in combination with dried sugar beet pulp (REO + B) was included in the diet of lambs during the fattening period under heat stress conditions. Environmental conditions and physiological and growth parameters of lambs were monitored throughout the trial. Plasma samples were collected to evaluate cytokine secretion (IL-1β, IL-6, and IL-10). Notably, REO inclusion reduced rectal temperature and respiration rate while increasing pro-inflammatory cytokines (IL-1β and IL-6) at the same time, suggesting an enhanced immune response without compromising growth performance.
ISSN:2076-2615