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<p>Bullfrogs (<i>Lithobates catesbeianus</i>) are widely farmed due to their high nutritional value and adaptability to intensive aquaculture systems. However, maintaining optimal growth performance and intestinal health remains a challenge under high-density farming conditions. This study evaluated the effects of four probiotic strains: <i>Clostridium butyricum</i> (CB), <i>Lactobacillus reuteri</i> (LR), <i>Lactobacillus sakei</i> (LS), and <i>Lactococcus lactis</i> (LLA) on growth performance, meat quality, and intestinal microbiota of bullfrogs in a 6-week feeding trial. The results showed that LR significantly improved growth performance and reduced mortality (<i>P</i> &lt; 0.05), while LS enhanced meat texture parameters. CB increased trans-linoleic acid content, suggesting a potential role in improving nutritional value. In contrast, LLA significantly inhibited growth and increased mortality (<i>P</i> &lt; 0.05), despite increasing L-carnosine levels and microbial diversity. Microbiota analysis revealed that probiotic treatments altered intestinal community composition, with distinct patterns among different strains. Our results suggest that probiotic effects are strain-specific and may differentially influence growth, meat quality, and gut microbiota in bullfrogs. This study provides a comparative perspective on probiotic application in amphibian aquaculture.</p>

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Enhancing Bullfrog Meat Texture and Health Value through Probiotic Intervention

  • 期刊论文

  • 发表日期：

    2026年7月9日

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  • Wei Liu,
  • Jiahui Zhu,
  • Pengcheng Shi,
  • Dou Wang,
  • Hong Sun

摘要

Bullfrogs (Lithobates catesbeianus) are widely farmed due to their high nutritional value and adaptability to intensive aquaculture systems. However, maintaining optimal growth performance and intestinal health remains a challenge under high-density farming conditions. This study evaluated the effects of four probiotic strains: Clostridium butyricum (CB), Lactobacillus reuteri (LR), Lactobacillus sakei (LS), and Lactococcus lactis (LLA) on growth performance, meat quality, and intestinal microbiota of bullfrogs in a 6-week feeding trial. The results showed that LR significantly improved growth performance and reduced mortality (P < 0.05), while LS enhanced meat texture parameters. CB increased trans-linoleic acid content, suggesting a potential role in improving nutritional value. In contrast, LLA significantly inhibited growth and increased mortality (P < 0.05), despite increasing L-carnosine levels and microbial diversity. Microbiota analysis revealed that probiotic treatments altered intestinal community composition, with distinct patterns among different strains. Our results suggest that probiotic effects are strain-specific and may differentially influence growth, meat quality, and gut microbiota in bullfrogs. This study provides a comparative perspective on probiotic application in amphibian aquaculture.