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All Journal HAYATI Journal of Biosciences
Do, Hoang Dang Khoa
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Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences

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Feasibility of Probiotic Lactobacillus casei FNCC 0090 to Improve Growth and Immune Response of Catfish (Clarias gariepinus) toward Aeromonas hydrophila Infection Aini, Nurul; Wahyuningsih, Sri Puji Astuti; Fatimah; Andriyono, Sapto; Do, Hoang Dang Khoa; Bachruddin, Muhammad
HAYATI Journal of Biosciences Vol. 32 No. 4 (2025): July 2025
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.4308/hjb.32.4.931-939

Abstract

Aeromonas hydrophila can cause motile Aeromonas septicemia, leading to high mortality in catfish. An effective alternative to treat this bacterial infection is administering the probiotic Lactobacillus casei FNCC 0090. However, proper fisheries management is crucial for long-term success. The aim of this research is to determine the effect of administering the probiotic L. casei FNCC 0090 on the growth parameters and immune system of catfish. 200 catfish were divided into 5 different treatments in 5 replicates. The treatments were KN (negative control: without probiotic and infected), KP (positive control: without probiotic and not infected), A (5% probiotic and infected), B (10% probiotic and infected), C (probiotic 15% and infected). The density of probiotics administered is 108 CFU/ml. The fish were kept for 42 days; on the 35th day, the fish were infected with 1 x 108 CFU/ml A. hydrophila intramuscularly. The parameters observed in this study are fish growth (specific growth rate, SGR; feed conversion ratio, FCR; and survival rate, SR) and the immune system (phagocytic activity and the amount of lysozyme enzyme). The data obtained were analyzed with SPSS One Way ANOVA. The results showed that the administration of 15% probiotic L. casei FNCC 0090 had a significant effect on the growth parameters and immune system.
Evolutionary Conservation and Diversity of Interspecific and Intraspecific Callophylaceae Chloroplast Genomes Nguyen, Nhat Nam; Do, Hoang Dang Khoa
HAYATI Journal of Biosciences Vol. 33 No. 1 (2026): January 2026
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.4308/hjb.33.1.240-249

Abstract

The chloroplast genome (cpDNA) plays an important role in the evolutionary history of various plant species. However, most records of cpDNA focused on a representative of a plant taxon. How are interspecies and intraspecies cpDNA evolutionary patterns? To provide hints for this question, we conducted comparative genomic analyses of genome size, structure, gene content, and sequence variations among examined Calophyllaceae interspecific and intraspecific cpDNAs. The results indicated a conservation of genome structure and gene content in both interspecies and intraspecies groups. Within the intraspecies group, Calophyllum inophyllum had a stable genome size and high pairwise identity (99.998%) compared to a variable genome size (from 161,444 bp to 161,473 bp) and pairwise identity (from 99.7% to 99.98%) of Mesua ferrea. Consequently, M. ferrea cpDNA has higher single-nucleotide polymorphism sites and indels compared to C. inophyllum. Otherwise, interspecies cpDNAs exhibited a diversity of genome size and different sequence variation rates between Calophyllum and Kielmeyera species. Comparative genomic analyses revealed conserved and diverse patterns during the evolutionary history of interspecies and intraspecies Calophyllaceae cpDNAs.
Co-Authors Aini Nurul Bachruddin, Muhammad Fatimah Nguyen, Nhat Nam Sapto Andriyono Sri Puji Astuti Wahyuningsih, Sri Puji Astuti