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Effectiveness of Chicken Manure Flower Extract (Tagetes ercta L.) Against Mortality and Antifeedant in Chili Aphid Pests Myzus persicae sulz Hotni Doani Purba; Helen J. Lawalata; Utari Satiman; Aser Yalindua; Christny F. E. Rompas
Jurnal Biologi Tropis Vol. 23 No. 1 (2023): Special Issue
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.v23i2.6291

This research was motivated by the chicken dung flower plant (Tagetes erecta L.) which is one of the plants that is often found in several areas in North Sulawesi, containing active chemical compounds such as alkaloids, terpenoids, saponins, tannins and flavonoids which can improve health. improve health. improve health. improve health. improve health. improve health. used as a vegetable protector. This study aims to determine the effectiveness of chicken manure flower extract on the mortality and antifeedant effect of chili aphids Myzus persicae sulz. This examination utilized an exploratory technique utilizing the leaf separate strategy utilizing a Totally Randomized Plan (CRD) design comprising of 4 treatments and 4 replications. Each treatment was given chicken manure flower extract with respective concentrations, namely P0 (0%), P1 (5%), P2 (10%), and P3 (15%). The results showed that the administration of chicken manure flower extract had a significant effect on the death of the chili aphid Myzus persicae sulz. The higher the extract from chicken manure flowers the higher the death rate of chili aphids Myzus persicae sulz and chicken manure flowers have an antifeedant effect at a concentration of 15%. So it can be concluded that giving chicken manure flower extract is effective in increasing the mortality of Myzus persicae sulz at a concentration of 15%, namely an average of 4.75 birds and has an antifeedant effect at a concentration of 15.%, namely an average of 0.350 grams.

TESTING FOR BACTERIAL CONTAMINATION ON CHICKEN (Gallus gallus domesticus) IN THE TRADITIONAL MARKET OF SOUTH LANGOWAN DISTRICT Sambeka, Delvino; Mege, Revolson; Setyawati, Iriani; Lawalata, Helen J; Rompas, Christny Ferdina Evie
Indonesian Biodiversity Journal Vol. 5 No. 2 (2024): August 2024
Publisher : Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53682/ibj.v5i2.10754

Chicken meat (Gallus gallus domesticus) plays an important role in society with its role as one of the sources of fulfillment of animal protein in Indonesia. With the high consumption of chicken meat by the public, the hygiene and safety of chicken meat must be ensured so as not to incur losses to the people. This study aimed to determine the bacterial contamination based on the testing of Total Plate Counts, Coliform, Escherichia coli, and Salmonella sp. Meet the requirement of the Indonesian National Standard on chicken meat in the traditional market of Langowan Selatan District. The method used in this research is a descriptive method to analyze and describe the results of the study, the testing using several indicators to directly conclude bacterial contamination. The results of the total plate count bacterial contamination test of the colonies, TPC in sample 1 = 29,1x kol/, sample 2 = 29,4x kol/, sample 3 = 27,7x kol/. MPN of Coliform and Escherichia coli results obtained in samples S1, S2, and S3 are 11x kol/gr. The results of microbact Salmonella sp. In samples S1 are positive, and S2 and S3 are negative. Based on observations, it is suspected that contamination occurs because sellers use equipment that is less sterile and there is no cover or barrier so the chicken meat is in direct contact with the air and customer. It is concluded that based on bacterial testing indicators, chicken meat in the traditional market of Langowan Selatan District has exceeded the limit of SNI 7388 2009 and is contaminated.

TESTING FOR BACTERIAL CONTAMINATION ON CHICKEN (Gallus gallus domesticus) IN THE TRADITIONAL MARKET OF SOUTH LANGOWAN DISTRICT Sambeka, Delvino; Mege, Revolson; Setyawati, Iriani; Lawalata, Helen J; Rompas, Christny Ferdina Evie
Indonesian Biodiversity Journal Vol. 5 No. 2 (2024): August 2024
Publisher : Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53682/ibj.v5i2.10754

Chicken meat (Gallus gallus domesticus) plays an important role in society with its role as one of the sources of fulfillment of animal protein in Indonesia. With the high consumption of chicken meat by the public, the hygiene and safety of chicken meat must be ensured so as not to incur losses to the people. This study aimed to determine the bacterial contamination based on the testing of Total Plate Counts, Coliform, Escherichia coli, and Salmonella sp. Meet the requirement of the Indonesian National Standard on chicken meat in the traditional market of Langowan Selatan District. The method used in this research is a descriptive method to analyze and describe the results of the study, the testing using several indicators to directly conclude bacterial contamination. The results of the total plate count bacterial contamination test of the colonies, TPC in sample 1 = 29,1x kol/, sample 2 = 29,4x kol/, sample 3 = 27,7x kol/. MPN of Coliform and Escherichia coli results obtained in samples S1, S2, and S3 are 11x kol/gr. The results of microbact Salmonella sp. In samples S1 are positive, and S2 and S3 are negative. Based on observations, it is suspected that contamination occurs because sellers use equipment that is less sterile and there is no cover or barrier so the chicken meat is in direct contact with the air and customer. It is concluded that based on bacterial testing indicators, chicken meat in the traditional market of Langowan Selatan District has exceeded the limit of SNI 7388 2009 and is contaminated.

Model Pembelajaran Problem-Based Learning : Implementasi pada Pembelajaran Biologi Materi Sistem Gerak Melisa Paulina Moonik; Anatje Lihiang; Christny F.E. Rompas
Polygon : Jurnal Ilmu Komputer dan Ilmu Pengetahuan Alam Vol. 3 No. 3 (2025): Mei: Polygon : Jurnal Ilmu Komputer dan Ilmu Pengetahuan Alam
Publisher : Asosiasi Riset Ilmu Matematika dan Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62383/polygon.v3i3.484

This research aims to improve student learning outcomes in motion system materials by applying the Problem-Based Learning (PBL) learning model at Tumou Tou Girian Christian High School, Bitung. This research was carried out in two cycles, each consisting of planning, implementation, observation, and reflection stages. The first cycle showed that only 36% of students completed learning, while the other 64% did not. In the second cycle, student learning completeness increased to 84% after improvements and the implementation of more effective strategies. Applying PBL allows students to actively engage in learning, develop problem-solving skills, and think critically. The results of this study show that PBL can increase students' motivation in learning and encourage better interaction between students. Additionally, the PBL model is effective in helping students construct their knowledge, relate the subject matter to real life, and improve their overall learning outcomes. This research contributes to developing innovative learning methods that can be applied to improve the quality of education, especially in biology learning. These findings imply the importance of using problem-based learning models in improving education quality and students' high-level thinking skills. For further research, exploring the application of PBL in other subjects and its impact on students' social skills is recommended.

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