| Abstract | Abstract. Phytobiotic properties of garlic (Allium sativum), turmeric (Curcuma domestica), red ginger (Zingiber officinale) and kencur (Kaempferia galangal) were studied using standard in vitro antibacterial test and in vivo feeding trial with ducklings. In the in vitro experiment, potency of aqueous extract of these phytobiotic agents were tested against Salmonella pullorum and Escherichia coli. Feeding trial was carried out for 6 week starting at day 28 using ducklings fed diets supplemented with 1% of each of four phytobiotic agents. The highest antibacterial activity against S. pullorum and E. coli was observed with garlic and no additive effect when mixture of phytobiotics was used. Weight gain, fed intake and feed conversion ratio of ducklings were not affected by inclusion of garlic, red ginger and kencur. However, 1% turmeric supplementation significantly reduced growth performance to ducklings.ÃÂÃÂ Key words: phytobiotic, antibiotic, duck, medicinal plantsÃÂÃÂ Abstrak.ÃÂÃÂ Penelitian karakteristik fitobiotik dari bawang putih (Allium sativum), kunyit (Curcuma domestica), jahe merah (Zingiber officinale) dan kencur (Kaempferia galangal) telah dilakukan secara in vitro melalui uji aktivitas antibakteri dan secara in vivo dengan perlakuan suplemetasi fitobiotik didalam pakan anak itik. Pada percobaanÃÂÃÂ in vitro, potensiÃÂÃÂ aktivitas antibakteri dari ektrak ÃÂÃÂ fitobiotik diuji menggunakan Salmonella pullorum and Escherichia coli.ÃÂÃÂ Percobaan suplementasi fitobiotik diberikan masing-masing sebesar 1% didalam pakan anak itik.ÃÂÃÂ Pemberian pakan perlakuan dilakukan selama 6 minggu,ÃÂÃÂ dimulai pada saat anak itik berumur 28 hari.ÃÂÃÂ Hasil penelitian menunjukkan aktivitas antibakteri terhadap S. pullorum dan E. coli paling tinggi adalah ektrak bawang putih dan tidak ada pengaruh yang lebih baik apabila dicampur dengan ektrak fitobiotik lainnya.ÃÂÃÂ Pertambahan bobot badan, konsumsi pakan dan konversi pakan anak itik tidak dipengaruhi oleh penambahan bawang putih, kunyit, jahe merah dan kencur.ÃÂÃÂ Akan tetapi, suplementasi kunyit nyata menurunkan performan pertumbuhan anak itik.ÃÂÃÂ Kata kunci: fitobiotik, antibiotik, itik, tanaman obat-obatan. |
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