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All Journal Jurnal Biologi Tropis JPBIO (Jurnal Pendidikan Biologi)
Putri, Ferta Liza
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Immunology & microbiology

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From Illumination to Biological Regulation: A Biological Reappraisal of Lighting Management in Chickens – A Review Oktariansyah, Yadi; Putri, Ferta Liza
Jurnal Biologi Tropis Vol. 26 No. 1 (2026): Januari-Maret
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v26i1.11515

Abstract

Lighting management is a fundamental component of chicken production systems and has traditionally been applied as a technical tool to enhance activity, feeding behavior, and productivity. Increasing evidence, however, indicates that light functions not merely as illumination, but as a key biological signal regulating circadian rhythms, neuroendocrine pathways, behavior, welfare, and long-term production performance. This review provides a biological reappraisal of lighting management in chickens by synthesizing current evidence on how different lighting characteristics influence biological regulation and practical outcomes. A systematic literature review was conducted following PRISMA guidelines, with a qualitative synthesis approach adopted due to heterogeneity in study designs, lighting protocols, and outcome measures. Evidence was integrated across major lighting domains, including photoperiod duration, timing consistency, light intensity, spatial distribution, spectral composition, lighting technology, and stage-specific implementation. Emphasis was placed on identifying primary biological targets, expected production benefits, risks of mismanagement, and relevant monitoring indicators. The synthesized findings demonstrate that lighting management acts primarily through alignment with endogenous circadian and endocrine systems rather than isolated technical parameters. Lighting regimes that preserve circadian stability support sustainable productivity and animal welfare, whereas biologically inappropriate strategies may induce cumulative physiological stress and compromise long-term performance. This review highlights the need to reframe lighting management as a form of biological regulation to support data-driven and biologically informed production systems.
Lansium domesticum metabolites interfere with digestive enzyme function in the rice weevil sitophilus oryzae Oktariansyah, Yadi; Putri, Ferta Liza; Harvianti, Yuniar; Musifa, Eva
JPBIO (Jurnal Pendidikan Biologi) Vol 11, No 1 (2026): April 2026
Publisher : STKIP Persada Khatulistiwa Sintang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31932/jpbio.v11i1.6212

Abstract

Pectin methylesterase (PME) plays a key role in polysaccharide digestion in the rice weevil Sitophilus oryzae, making it a potential molecular target for pest control. This study employed structure-based in silico analysis to evaluate selected metabolites of Lansium domesticum as PME inhibitors. Representative compounds were chosen according to predicted interference mechanisms and docked into the validated catalytic site. All complexes showed structural stability, while interaction patterns revealed six inhibition modes: competitive mimicry, catalytic disruption, orientation interference, channel blocking, polymer mimicry, and interfacial modulation, whereas polyphenols and glycosides produced the strongest interference. The findings indicate that L. domesticum metabolites can disrupt digestive enzymatic processes through multiple complementary pathways, supporting their potential development as biologically derived pest management agents.
Co-Authors Harvianti, Yuniar Musifa, Eva Yadi Oktariansyah