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All Journal EDUPEDIA Grouper: Jurnal Ilmiah Perikanan
Harminto, Harminto
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Environmental Science Immunology & microbiology Veterinary

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PENINGKATAN KEMAMPUAN PEMECAHAN MASALAH PESERTA DIDIK MELALUI MODEL PROBLEM BASED LEARNING DENGAN PENDEKATAN TEACHING AT THE RIGHT LEVEL Sabrina, Faradila Nur; Wulandari, Tri Candra; Harminto, Harminto
EDUPEDIA Vol 7, No 2 (2023): Oktober
Publisher : Universitas Muhammadiyah Ponorogo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24269/ed.v7i2.2402

Abstract

pembelajaran menggunakan model Problem Based Learning dengan pendekatan Teaching at the Right Level di kelas VII-I SMP Negeri 1 Bangil semester ganjil tahun ajaran 2023/2024. Penelitian ini merupakan penelitian tindakan kelas yang dilaksanakan dalam dua siklus. Metode pengumpulan data menggunakan tes pra siklus dan posttes. Pengukuran kemampuan pemahaman masalah menggunakan indikator yang dimiliki oleh Pólya (1973) dimana terdapat peningkatan sebesar 0,1 pada indikator pertama pemecahan masalah dari 2,7 pada siklus 1 menjadi 2,8 pada siklus 2; peningkatan sebesar 0,4 pada indikator kedua dari 2,5 pada siklus 1 menjadi 2,9 pada siklus 2; peningkatan sebesar 0,4 pada indikator ketiga dari 2,2 pada siklus 1 menjadi 2,6 pada siklus 2; peningkatan sebesar 0,4 pada indikator keempat dari 1,1 pada siklus 1 menjadi 1,4 pada siklus 2. Pembelajaran menggunakan model Problem Based Learning dengan Pendekatan Teaching at the Right Level juga dapat meningkatkan hasil belajar peserta didik ditunjukkan dengan adanya peningkatan persentase ketuntasan klasikal sebesar 23% dari 53% pada siklus 1 menjadi 75% pada siklus 2. Penelitian ini dapat disimpulkan bahwa model Problem Based Learning dengan Pendekatan Teaching at the Right Level ini dapat meningkatkan kemampuan pemecahan masalah peserta didik
Effectiveness of Probiotics in Semi-Intensive Pond Cultivation: A Study on the Growth of White Shrimp (Litopenaeus vannamei) Using Bacillus spp. and Lactobacillus spp. Harminto, Harminto; Ayu Rizki Amelia; Ryan, Monica; Aisyah, Siti
Grouper Vol. 16 No. 1 (2025): Grouper : Jurnal Ilmiah Perikanan
Publisher : Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/grouper.v16i1.316

Abstract

Whiteleg shrimp (Litopenaeus vannamei) cultivation is one of the rapidly growing aquaculture sectors in Indonesia, especially in West Sumatra Province. However, the success of this cultivation is greatly influenced by feed efficiency, water quality, and shrimp health. The use of probiotics is one of the strategies that are widely developed to improve cultivation performance in a sustainable and environmentally friendly manner. This study aims to compare the effectiveness of two types of probiotics, namely Bacillus spp. and Lactobacillus spp., on the growth and survival of whiteleg shrimp in a semi-intensive pond system. The study was conducted experimentally in Padang Pariaman Regency using a Completely Randomized Design (CRD) consisting of three treatments and three replications: P1 (control without probiotics), P2 (Bacillus spp. probiotics), and P3 (Lactobacillus spp. probiotics). The parameters observed included daily growth rate, survival rate, feed conversion efficiency (FCR), and water quality (pH, DO, NH₃, and salinity). Data were analyzed using ANOVA test and continued with DMRT test at a significance level of 5%. The results showed that the P2 treatment gave the best results significantly on all main parameters. Bacillus spp. has been shown to increase growth rate, survival rate, feed efficiency, and stabilize pond water quality. The P3 treatment showed intermediate results, while P1 showed the lowest performance. Thus, Bacillus spp. is the most effective probiotic to support vaname shrimp cultivation in a semi-intensive system.
Co-Authors Ayu Rizki Amelia Ryan, Monica Sabrina, Faradila Nur Siti Aisyah Tri Candra Wulandari