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Nau, Wilhelmina Getrudis
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Immunology & microbiology Public Health

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Potential Test of Jungle Water Guava (Zysigium jambos (L). Alston) Timor as Immunomodulator against Antibody Response of Broiler Chicken (Gallus domesticus) In Vivo Susar, Imelda; Seran, Lukas; Nau, Wilhelmina Getrudis
BEST Journal (Biology Education, Sains and Technology) Vol 7, No 1 (2024): Juni 2024
Publisher : Program Studi Pendidikan Biologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30743/best.v7i1.9119

Abstract

The study aims to determine the potential of Syzigium jambos (L.) Alston) Timor extract as an immunomodulator against the antibody response of broiler chickens (Gallus domesticus) in vivo. To determine what is the difference in immunomodulation between concentration levels of Syzigium jambos (L.) Alston ) Timor extract on the antibody response of broiler chickens (Gallus domesticus) in vivo. To determine whether there is a difference in immunomodulating ability of Syzigium jambos (L.) Alston ) Timor extract between the negative control group, experimental group and positive control group. Methods of the study used a research design with three treatment units, namely negative control, extract treatment and positive control following the pre-test post-test control group design. Data were analyzed descriptively and inferentially. The conclusion of this study is 1) Timor forest water guava bark extract is proven to have the potential as an immunomodulator against the antibody response of broiler chickens (Gallus domesticus) in vivo. 2) There are differences in immunomodulation between concentration levels of Timor forest water guava bark extract on the antibody response of broiler chickens (Gallus domesticus) in vivo, especially at a concentration of 25% with an average antibody titer of 853.3 cells/µl blood, while at concentrations of 50% and 75% there is no difference with an average antibody titer of 1024 cells/µl blood. 3) There is a difference in immunomodulation ability between the forest water guava bark extract (Zysigium jambos (L.) Alston) Timor group and the negative control group, but "no" difference with the positive control group.
Potential Test of Jungle Water Guava (Zysigium jambos (L). Alston) Timor as Immunomodulator against Antibody Response of Broiler Chicken (Gallus domesticus) In Vivo Susar, Imelda; Seran, Lukas; Nau, Wilhelmina Getrudis
BEST Journal (Biology Education, Sains and Technology) Vol 7, No 1 (2024): Juni 2024
Publisher : Program Studi Pendidikan Biologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30743/best.v7i1.9119

Abstract

The study aims to determine the potential of Syzigium jambos (L.) Alston) Timor extract as an immunomodulator against the antibody response of broiler chickens (Gallus domesticus) in vivo. To determine what is the difference in immunomodulation between concentration levels of Syzigium jambos (L.) Alston ) Timor extract on the antibody response of broiler chickens (Gallus domesticus) in vivo. To determine whether there is a difference in immunomodulating ability of Syzigium jambos (L.) Alston ) Timor extract between the negative control group, experimental group and positive control group. Methods of the study used a research design with three treatment units, namely negative control, extract treatment and positive control following the pre-test post-test control group design. Data were analyzed descriptively and inferentially. The conclusion of this study is 1) Timor forest water guava bark extract is proven to have the potential as an immunomodulator against the antibody response of broiler chickens (Gallus domesticus) in vivo. 2) There are differences in immunomodulation between concentration levels of Timor forest water guava bark extract on the antibody response of broiler chickens (Gallus domesticus) in vivo, especially at a concentration of 25% with an average antibody titer of 853.3 cells/µl blood, while at concentrations of 50% and 75% there is no difference with an average antibody titer of 1024 cells/µl blood. 3) There is a difference in immunomodulation ability between the forest water guava bark extract (Zysigium jambos (L.) Alston) Timor group and the negative control group, but "no" difference with the positive control group.
PENGARUH MODEL PROBLEM BASED LEARNING (PBL) BERBANTUAN ALAT PERAGA TERHADAP HASIL BELAJAR PESERTA DIDIK KELAS VIII PADA MATERI SISTEM PERNAPASAN PADA MANUSIA DI SMP NEGERI 2 KUPANG Mulia, Lusia; Nau, Wilhelmina Getrudis; I.Buku, Maria Novita
BEST Journal (Biology Education, Sains and Technology) Vol 8, No 1 (2025): Juni 2025
Publisher : Program Studi Pendidikan Biologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30743/best.v8i1.10199

Abstract

Hasil belajar adalah kemampuan yang diperoleh seseorang setelah proses belajar berlangsung yang dapat memberikan perubahan tingkah laku baik pengetahuan, sikap serta keterampilan peserta didik sehingga menjadi lebih baik dari sebelumnya. Berdasarkan hasil wawancara yang dilakukan, masalah yang ditemukan adalah hasil belajar peserta didik masih rendah, dikarenakan model pembelajaran yang digunakan oleh guru belum optimal dan kurang memanfaatkan media pembelajaran. Model pembelajaran yang dapat mengatasi permasalahan ini yaitu model Problem Based Learning. Tujuan penelitian ini adalah untuk mengetahui pengaruh model Problem Based Learning (PBL) berbantuan alat peraga tehadap hasil belajar peserta didik kelas VIII pada materi pokok Sistem Pernapasan Pada Manusia di SMP Negeri 2 Kupang. Jenis penelitian yang digunakan adalah penelitian kuantitatif dengan Quasi Eksperimen. Desain penelitian yang digunakan Nonequivalent Control Group Design. Pengambilan sampel dilakukan dengan menggunakan teknik purposive sampling. Populasi dalam penelitian ini adalah seluruh peserta didik kelas VIII, dengan sampel kelas VIII G sebagai kelas eksperimen menggunakan model Problem Based Learning dan kelas VIII F sebagai kelas kontrol menggunakan model pembelajaran langsung. Teknik analisis data dalam penelitian ini yaitu menggunakan analisis deskriptif dan analisis inferensial. Hasil penelitian menunjukkan rata-rata hasil belajar peserta didik pada kelas eksperimen yang menerapkan model Problem Based Learning berbantuan alat peraga rata-rata nilai pretest 47,19 dan posttest 80,63, N-Gain 0,61 termasuk kategori tinggi. Sedangkan untuk kelas kontrol yang menggunakan model pembelajaran langsung rata-rata nilai pretest 46,56 dan posttest 74,38, N-Gain 0,51 termasuk kategori sedang. Berdasarkan hasil uji anacova menunjukkan signifikan 0,020 0,05 sehingga hipotesis Ho ditolak dan hipotesis Ha diterima. Berdasarkan analisis data yang telah dilakukan maka dapat disimpulkan bahwa model Problem Based Learning (PBL) berbantuan alat peraga berpengaruh terhadap hasil belajar peserta didik kelas VIII pada materi Sistem Pernapasan Pada Manusia di SMP Negeri 2 Kupang.
Co-Authors I.Buku, Maria Novita Lukas Seran Mulia, Lusia Susar, Imelda