Effects of dietary tannic acid and antimicrobial peptide in White Pekin ducks (0–21 days)

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In a randomized feeding trial of 336 White Pekin ducks up to 21 days, 0.1% dietary tannic acid improved feed conversion ratio while 0.02% antimicrobial peptide increased average daily feed intake. Both additives enhanced serum immunoglobulins, complement, antioxidant enzymes and total antioxidant capacity, lowered MDA, and reduced cecal Actinobacteria abundance; no synergistic effects were observed.

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