Home⇛Annals of Tropical Research⇛vol. 47 no. 2 (2025)

Probiotics, prebiotics and bacteriocins as alternatives to antibiotics in the livestock industrya Philippine perspective

Rodney H. Perez

 

Abstract:

The widespread misuse and overuse of antibiotics in the animal industry have significantly accelerated the emergence of antimicrobial resistance (AMR), creating multidrug-resistant (MDR) strains that pose a serious threat to both animal and human health. This escalating problem risks reversing decades of medical progress, potentially returning healthcare to a pre-antibiotic era. In response, many countries have implemented policies restricting antibiotic use in livestock production; however, in developing nations such as the Philippines, enforcement remains weak due to limited resources, inadequate training of personnel, and the lack of effective, affordable alternatives to antibiotics. Addressing this issue requires not only stronger regulatory frameworks but also an aggressive information campaign that highlights the dangers of AMR and promotes sustainable solutions. Probiotics, which have been shown to improve animal health and productivity, represent a viable option, particularly when combined with prebiotics that can enhance their effectiveness. Nevertheless, challenges persist, as probiotic efficacy is highly strain-specific, and the market is increasingly saturated with products of unvalidated quality, often mislabeled due to weak oversight and the proliferation of e-commerce platforms. To maintain consumer confidence, probiotic strains must meet rigorous safety, functionality, and technological utilitystandards, with health benefits scientifically verified before approval. Advances in modern molecular biotechnology, particularly genome editing tools such as CRISPR-Cas9, offer powerful strategies to enhance probiotic strains by eliminating virulence genes and incorporating beneficial traits, including bacteriocin production. These genetically improved strains, when paired with prebiotics, could provide more consistent results, enhance livestock growth and productivity, and serve as effective, science-based alternatives to antibiotics. By fostering innovation, implementing stricter regulation, and promoting validated probioticprebiotic combinations, the livestock industry can reduce reliance on antibiotics while mitigating the global threat of MDR pathogens.



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