Advances in Consumer Research
Issue 1 : 1007-1020
Original Article
Milk and Immune Biomarkers of Subclinical Mastitis in Dromedary Camels in Al-Qassim Region, Saudi Arabia
1
Qassim Municipality, Qassim region, Saudi Arabia.
Abstract

This study investigated the complex interactions between bacteriological, physicochemical and immuno-inflammatory indicators of subclinical mastitis (SCM) in dromedary camels under different management systems, including movement-restricted, free-ranging housing, regular, irregular feeding and single-milking frequency. Correlation matrices were created to assess how somatic cell count (SCC), milk contents, cytokines (TNF-α, IL-6, IL-10) and immunological proteins (IgG, LTF, LPO) respond to environmental and managerial variability. In most cases, there was little correlation between SCC and bacteriological characteristics, suggesting that SCM in camels is not mainly caused by infection. Rather, stronger associations were found between SCC and important physicochemical parameters, such as lactose, TS, SNF, citric acid and urea suggesting that a major component of the inflammatory response is metabolic imbalance. Immune patterns differed significantly between parameters: free-ranging and irregular-feeding camels displayed strong cytokine-driven inflammation with strong SCC, IL-6 and SCC, IL-10 correlations, while movement-restricted and regular-feeding camels showed localized enzymatic activation, especially through LPO. Single-milking frequency increased both metabolic disturbance and cytokine activation. TNF-α showed system-dependent correlations, indicating changes in both local and systemic immune responses. In conclusion, the results demonstrated that SCM expression in camels is significantly influenced by managerial and environmental factors, suggesting the need for system-specific diagnostic and preventive strategies

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