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<p>The search for effective probiotic alternatives to antibiotics in aquaculture has increased in recent years. This study evaluated the dietary supplementation of <i>Saccharomyces cerevisiae</i> and <i>Pseudomonas aeruginosa</i> on growth, feed utilization, intestinal morphology, and health of red tilapia (<i>Oreochromis</i> sp.) over a 60-day feeding trial. Fish were fed diets containing three graded levels of <i>S. cerevisiae</i> (1, 2, and 4&#xa0;g kg⁻¹ feed) or <i>P. aeruginosa</i> (1, 2, and 3 mL kg⁻¹ feed), and compared with a control group. Both probiotics enhanced performance and physiological responses compared with the control. The highest inclusion levels (4&#xa0;g kg⁻¹ for <i>S. cerevisiae</i> and 3 mL kg⁻¹ for <i>P. aeruginosa</i>) yielded superior growth rate, feed efficiency, and intestinal villus development, accompanied by improved muscle protein content and stable hematological profiles. No adverse effects were detected in water quality or fish health. These findings highlight the potential of <i>S. cerevisiae</i> and a non-pathogenic <i>P. aeruginosa</i> strain as promising probiotics for red tilapia culture, demonstrating complementary effects on nutrient utilization and physiological condition.</p>

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Dietary Saccharomyces Cerevisiae and Pseudomonas Aeruginosa Enhance Growth Performance, Nutrient Utilization, Intestinal Morphology, and Hemato-Biochemical Profile in Red Tilapia (Oreochromis sp.)

  • 期刊论文

  • 发表日期：

    2025年12月10日

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  • Remy Ntakirutimana,
  • KM Mujeeb Rahiman,
  • Jishnu Kunjappan,
  • Megha Lovejan,
  • Aishath Ali Farhath,
  • MP Jijina,
  • AR Nikhila Khana,
  • K. Nandhakumar,
  • KV Neethu,
  • Anatole Bigirimana

摘要

The search for effective probiotic alternatives to antibiotics in aquaculture has increased in recent years. This study evaluated the dietary supplementation of Saccharomyces cerevisiae and Pseudomonas aeruginosa on growth, feed utilization, intestinal morphology, and health of red tilapia (Oreochromis sp.) over a 60-day feeding trial. Fish were fed diets containing three graded levels of S. cerevisiae (1, 2, and 4 g kg⁻¹ feed) or P. aeruginosa (1, 2, and 3 mL kg⁻¹ feed), and compared with a control group. Both probiotics enhanced performance and physiological responses compared with the control. The highest inclusion levels (4 g kg⁻¹ for S. cerevisiae and 3 mL kg⁻¹ for P. aeruginosa) yielded superior growth rate, feed efficiency, and intestinal villus development, accompanied by improved muscle protein content and stable hematological profiles. No adverse effects were detected in water quality or fish health. These findings highlight the potential of S. cerevisiae and a non-pathogenic P. aeruginosa strain as promising probiotics for red tilapia culture, demonstrating complementary effects on nutrient utilization and physiological condition.