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All Journal JSME MIPA UNIMA Animal Production : Indonesian Journal of Animal Production JURNAL PENDIDIKAN TAMBUSAI Eksakta : Berkala Ilmiah Bidang MIPA Fullerene Journal of Chemistry SOSCIED Vivabio : Jurnal Pengabdian Multidisiplin Prima Abdika: Jurnal Pengabdian Masyarakat Abdimas : Jurnal Pengabdian Kepada Masyarakat Indonesian Biodiversity Journal Jurnal Ilmiah Sains Konstanta: Jurnal Matematika dan Ilmu Pengetahuan Alam Indonesian Biodiversity Journal Jurnal Cakrawala Pendidikan dan Biologi (jucapenbi) Konstanta : Jurnal Matematika dan Ilmu Pengelatuan Alam
Debby Jacqualine Jochebed Rayer
Biology Department, Faculty Of Mathematics And Natural Sciences, Manado State University, Indonesia
Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Education Energy Engineering Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Neuroscience Physics Public Health Social Sciences Veterinary Other

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The Specific Growth Rate (SGR) Related to the Histology of Gonad and Liver of African Catfish (Clarias gariepinus) Supplemented with Curcumin and Thyroxine Hormone Rawung, Livana Dethris; Sunarma, Ade; Rayer, Debby J. J.
EKSAKTA: Berkala Ilmiah Bidang MIPA Vol. 22 No. 2 (2021): Eksakta : Berkala Ilmiah Bidang MIPA (E-ISSN : 2549-7464)
Publisher : Faculty of Mathematics and Natural Sciences (FMIPA), Universitas Negeri Padang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1017.139 KB) | DOI: 10.24036/eksakta/vol22-iss2/245

Abstract

This study used catfish Clarias gariepinus as an experimental animal, which given supplementation of curcumin and thyroxine hormone. The results showed that during the reproductive period there was an increase in body weight of female catfish in line with the development of the gonads. Through the histology of the gonads, it appeared that oocyte development occurs over time.  The results of liver histology showed a high activity of hepatocyte cells as indicated by the formation of vacuoles, as the storage site for vitellogenin, in their cytoplasm. Supplementation of curcumin and thyroxine was able to increase the specific growth rate of catfish, and the catfish group that given the combination treatment of curcumin supplementation (5 g.kg-1 of feed) with thyroxine hormone (0.1 mg.kg-1 of feed) showed the more optimal results.
ANALISIS GAYA BELAJAR PESERTA DIDIK BERPRESTASI PADA MATA PELAJARAN BIOLOGI DI KELAS XI SMA NEGERI 3 MANADO Takasihaeng, Grace Merryrose; Rayer, Debby J. J.; Posumah, Dany Ch
SOSCIED Vol 8 No 1 (2025): SOSCIED - Juli 2025
Publisher : LPPM Politeknik Saint Paul Sorong

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32531/jsoscied.v8i1.928

Abstract

This research is motivated by the occurrence of various difficulties in the learning process, namely teachers have not used a variety of learning methods according to students' learning styles so that students' interest in learning is still lacking. This research is a qualitative descriptive study. Data collection techniques using questionnaires, interviews and documentation. The data sources in the study were outstanding biology students in class XI. The sources in the study were 3 outstanding students who obtained the highest scores in Biology subjects in Class XI A-XI G of SMA Negeri 3 Manado. Based on the data obtained through research and data validity tests using data triangulation, it can be concluded from the results of the study which show that outstanding students in Biology subjects in Class XI A-XI G of SMA Negeri 3 Manado have a combined learning style of visual, auditory and kinesthetic (VAK). However, among these learning styles, the most dominant is the kinesthetic learning style, from 21 students it was found that 3 students had a tendency towards a visual learning style, 5 students had a tendency towards an auditory learning style, 10 students had a tendency towards a kinesthetic learning style and 3 students had a combination of learning styles, namely: 1 student had a visual kinesthetic learning style, 1 student had an auditory kinesthetic learning style, and 1 student had a visual, auditory and kinesthetic learning style.
Isolasi dan Identifikasi Bakteri Penyebab Penyakit pada Ikan Nila (Oreochromis niloticus) di Desa Tatelu Kecamatan Dimembe Kabupaten Minahasa Utara Watugigir, Gerfindo Y. G; Rayer, Debby J. J.; Lawalata, Helen J; Watung, Fernando A; Rampengan, Mercy M. F
SOSCIED Vol 7 No 2 (2024): SOSCIED - November 2024
Publisher : LPPM Politeknik Saint Paul Sorong

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32531/jsoscied.v7i2.870

Abstract

Tilapia is a freshwater animal that is always in contact with the aquatic environment so that it is easily infected by bacteria through water. This study aims to identify the types of bacteria that cause diseases that attack Tilapia (Oreochromis niloticus) kept in Dimembe District, North Minahasa Regency. This study uses a descriptive exploratory research method. The results of the study found sixteen isolates and identified them as bacteria that cause Tilapia disease in North Minahasa Regency, including Aeromonas sp. (4 isolates), Plesiomonas sp. (5 isolates), and Enterobacter sp. (1 isolate). based on morphological characteristics (colonies and bacterial cells) and biochemical (catalase, oxidase and motility tests). It was found that periodic and continuous fish disease surveillance is needed to monitor the spread of fish diseases, especially Tilapia disease in North Minahasa
Scramble Type Cooperative Learning Model and Its Influence on Biology Learning Outcomes: Experimentation on Tondano 1 Public High School Students Sammane, Angela Regiency; Rayer, Debby J. J.; Manuahe, Caroline
Jurnal Pendidikan Tambusai Vol. 8 No. 2 (2024)
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai, Riau, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jptam.v8i2.14901

Abstract

Tujuan penelitian adalah untuk mengetahui bagaimana Model Pembelajaran Kooperatif Tipe Scramble di SMA Negeri 1 Tondano mempengaruhi hasil belajar biologi siswa. Penelitian ini dilaksanakan di kelas X SMA Negeri 1 Tondano pada tahun ajaran 2023–2024. Sampel penelitian terdiri dari 26 siswa kelas X-4 dan 25 siswa kelas X-3. Dengan nilai t tabel sebesar 1,676 maka nilai t hitung sebesar 4,847 sesuai dengan data pengujian hipotesis uji t. Selanjutnya, n1+n2-2 (25+26–2) = 49 derajat kebebasan digunakan, dan ambang batas signifikansi ditetapkan sebesar 0,05. Hal ini dapat ditentukan dengan membandingkan nilai thitung dan ttabel yaitu thitung > ttabel, maka H0 ditolak dan H1 disetujui. Oleh karena itu, dapat dikatakan bahwa model pembelajaran koperatif tipe scrambel berpengaruh terhadap hasil belajar siswa pada pembelajaran biologi.
The Influence Of Mnemonic Learning Models On Plant Tissue Material On Learning Outcomes Of Class XI Students Of SMA Negeri 4 Manado Mirayanti Banapon; Debby J. J. Rayer; Danny Ch. Posumah
Konstanta : Jurnal Matematika dan Ilmu Pengetahuan Alam Vol. 1 No. 3 (2023): September : Jurnal Matematika dan Ilmu Pengetahuan Alam
Publisher : International Forum of Researchers and Lecturers

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/konstanta.v1i3.1103

Abstract

The low student learning results may be observed in the value decided by the teacher, which is less than the KKM's average value of 75. The purpose of this study is to determine the impact of the mnemonic learning model on student biology learning outcomes in class XI MIPA SMA Negeri 4 Manado during the academic year 2021/2022. This study used a quasi-experimental design. This study's sample included two classes: class XI MIPA 1 as an experimental class with 20 students and class X1 MIPA 2 as a control class with 20 students. The results showed that the average pretest and post-test learning outcomes obtained by students in class XI MIPA 1 (experiment) with the application of the pretest mnemonic learning model were 34.75 and 76.75, respectively, while the pretest and post-test learning outcomes obtained by students in class XI IPA 2 (control) with only conventional learning were 31.25 and 71.25, respectively. The value of tcount> ttable was derived by hypothesis testing the pretest and post-test data in the experimental and control classes at a significant threshold of 0.05. The table value is 2.024, whereas the count value is 2.681. H0 is rejected based on the hypothesis testing criterion, but H1 is approved. This suggests that H0 has no effect, however H1 has an affect on student learning outcomes in Biology class XI at SMA Negeri 4 Manado.
Pendampingan Pengolahan Minyak Kelapa dalam Mendukung Program Penguatan Profil Pelajar Pancasila di Sekolah Menengah Rawung, Livana Dethris; Moko, Emma Mauren; Soputan, Grace Jenny; Rayer, Debby J J; Lihiang, Anatje; Wantania, Johanna Zusye
Prima Abdika: Jurnal Pengabdian Masyarakat Vol. 4 No. 4 (2024): Volume 4 Nomor 4 Tahun 2024
Publisher : Program Studi Pendidikan Guru Sekolah Dasar Universitas Flores Ende

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37478/abdika.v4i4.4853

Abstract

The Pancasila Student Profile Strengthening Project or often referred to as the P5 Project is an effort to support the realization of student figures based on the Pancasila foundation through the process of reviewing student learning materials based on projects. One of the topics of the P5 activities carried out at SMA N 2 Ratahan is entrepreneurship, and coconut oil processing is the theme raised. The implementation method of community service activities consists of dissemination, training/technology transfer, as well as monitoring and evaluation at the final stage. Through this community service activity, there is an increase in the level of community empowerment in this case students and teachers, namely increasing student knowledge and skills about processing coconuts into coconut oil and blondo using more modern tools. The activities include production and packaging. This activity has also been able to improve students' life skills to be able to become entrepreneurs later.
Pengaruh Model Pembelajaran Project-Based Learning Berbantuan Scrapbook Terhadap Hasil Belajar Siswa pada Materi Sistem Ekskresi Manusia Triwulandari Saleh; Debby J. J. Rayer; Nonny Manampiring
Jurnal Cakrawala Pendidikan dan Biologi Vol. 2 No. 1 (2025): Maret: Jurnal Cakrawala Pendidikan dan Biologi
Publisher : Asosiasi Riset Ilmu Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/jucapenbi.v2i1.174

Abstract

This study aims to find out whether Project Based Learning using scrapbooks has an effect on improving student learning outcomes in human excretory system material at SMA Negeri 1 Motoling. This study was conducted using an experimental method with a pre-test post-test control group design research design. The sample in this study consisted of two classes, namely class XI 5 as an experimental class with 20 students and class XI 7 as a control class with 20 students. The results of the research in the experimental class found that the maximum post-test score was 90, and the minimum score was 65 with an average number of 77. In the control class, the maximum post-test score was 85 and the minimum score was 20 with an average of 46.26. Thus, it can be concluded that there is a significant influence of the use of the project-based learning model using scrapbooks on student learning outcomes at SMA Negeri 1 Motoling on the material of the human excretory system.
Entrepreneurial Development of C Pengembangan Wirausaha Cabai Rawit Varietas Bara F-1 Pada Kelompok Tani Wanita Berdikari Melalui Aplikasi Teknologi ULiBiCo, EM4 dan Plastikultur-MPHP : Entrepreneurial Development of Cayenne Pepper Variety Bara F-1 in the Berdikari Women Farmers Group through Technology Applications ULiBiCo, EM4 and MPHP Sakul, Ernest Hanny; Manoppo, Jacklin Stella Salome; Ngangi, Jantje; Rayer, Debby Jacqueline Jochebed; Nangoy, Wiesye Maya Selfia; Lawalata, Helen Joan; Rompas, Christny Ferdina Evie; Djarang, Rievo Handry; Sakul, Zefanya Escriva Rafael; Tengker, Anita Costanci Christine; Rawung, Stanny Sicilia; Silangen, Patricia Mardiana; Rumondor, Desire Atna Sridanty
Vivabio: Jurnal Pengabdian Multidisiplin Vol. 7 No. 2 (2025): VIVABIO: Jurnal Pengabdian Multidisiplin
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35799/vivabio.v7i2.63298

Abstract

Tonsealama is a village that has the potential to develop an environmentally friendly organic-based agribusiness farmer group business that has maximum agribusiness products and high economic value. The livelihood of the villagers is dominated by farmers and farm laborers and only a small part is engaged in services. The development of agribusiness entrepreneurship of raw chilli bara F1 variety for women's farmer groups in Keroit village is deemed necessary to be developed, in order to utilize idle land and organic household waste products. This is also a business opportunity to increase household economic income and the welfare of women's farmer groups and their members. Based on the above, the Community Partnership Program for Women Farmers Group in Tonsealama Village was implemented. This program includes the use of agricultural technology products in the form of ULiBiCo (Unima Liquid Biofertilizer Combination) and Effective Microorganism (EM4) applications that help the decomposition process of chicken manure waste into quality organic fertilizer, and combined with the use of silver black plastic mulch technology (MPHP) and bioinsecticide-based pest control, it turns out to be able to provide good yields in the cultivation of cayenne pepper plants of the bara F-1 variety. The morphological character of the first harvest obtained is the quality of the cayenne pepper fruit, which has a sharp fruit, with a length of ± 3 cm, a diameter of ± 0.4 cm, shiny red skin, spicy taste, and can be harvested at the age of 78 - 100 days after planting (HST), the average yield of this cayenne pepper is 0.85 - 1.0 kg per plant, with a weight per fruit ranging from 0.9 - 1.8 grams and has a potential yield of 8.9 - 10 tons / ha. ABSTRAK Tonsealama merupakan desa yang memiliki potensi untuk dikembangkannya sebuah usaha kelompok tani agribisnis berbasis organik ramah lingkungan yang memiliki produk hasil agribisnis yang maksimal dan bernilai ekonomi tinggi. Mata pencaharian penduduk desa masih didominasi oleh para petani. Pengembangan wirausaha agribisnis cabai rawit varietas bara F1 pada kelompok tani wanita di desa Tonsealama dirasa perlu untuk dikembangkan, guna memanfaatkan lahan tidur dan produk limbah organik rumah tangga. Hal ini juga merupakan sebuah peluang usaha untuk meningkatkan pendapatan ekonomi rumah tangga dan kesejahteraan kelompok tani wanita beserta anggotanya. Berdasarkan hal tersebut di atas, maka dilaksanakanlah Program Kemitraan Masyarakat Kelompok Tani Wanita di Desa Tonsealama. Program ini meliputi pemanfaatan produk teknologi pertanian berupa aplikasi ULiBiCo (Unima Liquid Biofertilizer Combination) dan Effective Microorganism (EM4) yang membantu proses dekomposisi limbah kotoran ayam menjadi pupuk organik berkualitas, dan dikombinasikan dengan pemanfaatan teknologi mulsa plastik hitam perak (MPHP) serta pengendalian hama berbasis bioinsektisida, ternyata mampu memberikan hasil panen yang baik dalam budidaya tanaman cabai rawit varietas bara F-1. Karakter morfologi hasil panen pertama yang diperoleh yaitu kualitas buah cabai rawit memiliki buah lancip, dengan panjang ± 3 cm, diameter ± 0,4 cm, kulit buah berwarna merah mengkilap, berasa pedas,  dan dapat dipanen pada umur 78 - 100 hari setelah tanam (HST), rata-rata hasil cabai rawit ini yaitu 0,85 - 1,0 kg per tanaman, dengan bobot per buah berkisar 0,9 – 1,8 gram dan memiliki potensi hasil 8,9 – 10 ton/ha.
Co-Authors Ade Sunarma, Ade Anatje Lihiang Anita Costanci Christine Tengker Caroline Manuahe Christny Ferdina Evie Rompas Danny Ch. Posumah Danny Ch. Posumah Dany Posumah Delvy Regina Leunufna Desire Atna Sridanty Rumondor Dino Rahardiyan Djarang, Rievo H Emma M Moko Fernando Andre Watung Grace Jenny Soputan Helen Joan Lawalata HERA MAHESHWARI Hera Maheswari, Hera Iren Natalia Simanjuntak Jacklin Stella Salome Manoppo Jacson Saruan Jantje Ngangi Johanna Zusye Wantania Laksono Trisnantoro Livana Dethris Rawung Meity Nelltje Tanor Mirayanti Banapon Mirayanti Banapon Nangoy, Wiesye Maya Selfia Nonny Manampiring Pasolon, Angelina Wiwi Patricia Mardiana Silangen Rampengan, Mercy Maggy Franky Revolson Mege Rudi Alexander Repi Sakul, Ernest Hanny Sakul, Zefanya Escriva Rafael Sammane, Angela Regiency Saruan, Jacson Stanny Sicilia Rawung Takasihaeng, Grace Merryrose Tengker, Anita Costanci Christine Tommy M Palapa Triwulandari Saleh Wasmen Manalu Watugigir, Gerfindo Y. G