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Effect of Feeding Fruit and Vegetable Wastes on Growth and Protein Content of BSF Maggot (Hermetia illucens): Pemberian Pakan Sampah Buah dan Sayur terhadap Pertumbuhan dan Kadar Protein Maggot BSF (Hermetia illucens) Ananda, Resti; Johan, Henny; Nursaadah, Euis; Ruyani, Aceng; Harlita
Jurnal Ilmu Nutrisi dan Teknologi Pakan Vol. 22 No. 1 (2024): Jurnal Ilmu Nutrisi dan Teknologi Pakan
Publisher : Departemen Ilmu Nutrisi dan Teknologi Pakan Fakultas Peternakan Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jintp.22.1.43-49

Abstract

Black Soldier Fly maggot can reduce the amount of organic waste, especially fruit and vegetable wastes. Its break down organic waste into its food containing very high protein, so it become a promising animal feed. This study aimed to analyze effect of feeding tomato fruit waste and mustard vegetable waste on the growth and protein content of BSF maggot (Hermetia illucens). This study applied a complete randomized design (CRD) with 5 treatments (different percentages of tomato and mustard vegetable wastes) and 3 replications. The growth parameters measured were mass, length, thickness of BSF maggot which were analyzed statistically using the ANOVA test and continued with the Least Significant Difference (LSD) test. Protein content was analyzed using the automatic Kjeldahl test. Our results showed that feeding fruit and vegetable wastes have a significant effect on growth (mass, length, thickness) and maggot protein levels. It can be concluded that feeding fruit and vegetable wastes affect the growth (mass, length, thickness) and protein content of BSF maggot. Key words: growth, maggot, mustard waste, protein, tomato waste
Pengembangan Circulatory System Mobile Learning (CSML) untuk Siswa Kelas XI Kumalasari, Anggi Prastiwi; Harlita; Rinanto, Yudi
Biosfer: Jurnal Pendidikan Biologi Vol. 17 No. 2 (2024): Biosfer: Jurnal Pendidikan Biologi
Publisher : Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/biosferjpb.41502

Abstract

The utilization of communication devices such as mobile phones as a learning support tool in the development of technology 4.0 is still low. The low mobile phone utilization as a learning support tool causes the variety of learning media used by teachers to be low. The low variety of learning media results in students having difficulty mastering the concept of learning material, especially circulatory system material in class XI. The difficulty of concept mastery on circulatory system material can be overcome through the development of circulatory system mobile learning (CSML). The research objectives are: 1) Develop CSML on circulatory system material in grade XI, 2) Test the feasibility of CSML, and 3) Know the response of teachers and students to CSML. The type of research is Research and Development (R&D) using the ADDIE model (Analysis, Design, Development, Implementation, and Evaluation). Data collection uses feasibility validation questionnaires  and response questionnaires. The data analyzed were the results of the feasibility assessment from media experts and material experts, and the results of responses from teachers and students. Data analysis was carried out quantitatively descriptive using a Likert scale of 1-4. The results of the study are 1) The result of developing CSML can be accessed online; 2) The results of the feasibility assessment from media experts were 82.27% and material experts were 89.59% with a very feasible category; 3) The results of teacher responses were 87.02% and student responses were 88.55% with a great category.
Analyzing critical thinking enhancement and moment of inertia understanding through inquiry based virtual labs Erlangga, Sony Yunior; Sarwanto; Harlita; Fitriyah, Isnanik Juni; Yektyastuti, Resti; Kuncoro, Krida Singgih; Kusumaningrum, Betty
COMPTON: Jurnal Ilmiah Pendidikan Fisika Vol 11 No 2 (2025): Compton: Jurnal Ilmiah Pendidikan Fisika
Publisher : Prodi Pendidikan Fisika Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/cjipf.v11i2.19628

Abstract

This study examines the effectiveness of inquiry-based virtual laboratory modules in improving civil engineering students' conceptual understanding of moment of inertia, with critical thinking skills as a moderating factor. Using a quasi-experimental 2x2 factorial design, 60 students were divided into experimental and control groups. The experimental group engaged with virtual lab modules featuring interactive simulations and case-based learning, while the control group received conventional lecture-based instruction. Results indicated significantly higher learning outcomes in the experimental group (mean score = 58.9) compared to the control group (46.5), with critical thinking skills further amplifying this effect. ANOVA analysis confirmed the significant impact of the intervention (F = 21.83, p < 0.001). The study highlights the importance of integrating technology with pedagogical strategies that foster critical analysis and self-directed exploration. These findings contribute to engineering education by demonstrating how virtual labs, when combined with inquiry-based learning, can bridge the gap between theoretical knowledge and practical application while accommodating diverse learning needs. Recommendations include curriculum integration of such modules and professional development for educators in implementing technology-enhanced, inquiry driven approaches.