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Satri Yusasra Agasi
Department of Agricultural Industrial Technology, Study Program of Animal Feed Technology, Politeknik Negeri Tanah Laut, Tanah Laut 70815, Indonesia
Veterinary

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Effects of Gelinggang Leaf Extract (Cassia alata L.) on Ileal Bacterial Populations in Laying Quail Fadhli Fajri; Dwi Sandri; Satri Yusasra Agasi; Fajri Maulana
Jurnal Sain Peternakan Indonesia Vol 21 No 3 (2026)
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jspi.id.21.3.203-209

Abstract

This study evaluated the effects of dietary gelinggang leaf extract on ileal lactic acid bacteria (LAB), presumptive Escherichia coli, and presumptive Salmonella spp. in laying quail. Two hundred six-week-old female Japanese quail were assigned to five treatments with four replicate cages of 10 birds. Treatments comprised basal feed, basal feed with zinc bacitracin as an antibiotic growth promoter (AGP), and basal feed with 0.5%, 1.0%, or 1.5% extract. One bird per cage was sampled after six weeks; the cage was the experimental unit (n = 4 per treatment). Log10 CFU/g data were analyzed using one-way ANOVA and Duncan’s test, with residual diagnostics and a permutation sensitivity analysis. Treatment effects were detected for LAB (F4,15 = 12.108; P = 0.000135), presumptive E. coli (F4,15 = 64.647; P = 2.821 × 10⁻⁹), and presumptive Salmonella spp. (F4,15 = 26.352; P = 1.243 × 10⁻⁶). Among extract treatments, 0.5% yielded the highest mean LAB count (7.35) and lowest presumptive E. coli (4.00) and Salmonella spp. (2.10). Residual nonnormality warrants caution in pairwise interpretation. The 0.5% inclusion showed a favorable numerical profile; a validated optimum or equivalence to AGP was not established.
Co-Authors Dwi Sandri Fadhli Fajri Fajri Maulana