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All Journal Wahana Matematika dan Sains Buletin Peternakan Tropis (Bulletin of Tropical Animal Science)
Marisa, Anggun
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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Proses Validasi Pengembangan Media Pembelajaran dengan iSpring 11 Marisa, Anggun; Dumeva Putri, Agustiany; Agustiani, Riza; Zahra, Atika
Wahana Matematika dan Sains: Jurnal Matematika, Sains, dan Pembelajarannya Vol. 17 No. 2 (2023): Agustus 2023
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/wms.v17i2.75130

Abstract

Penelitian ini bertujuan untuk menghasilkan media pembelajaran materi perkalian dua pecahan berbasis literasi numerasi dengan iSpring 11 yang valid. Media pembelajaran berbasis teknologi dapat membantu pendidik untuk menyampaikan konsep dari materi pecahan kepada peserta didik. Jenis dari penelitian ini adalah Research and Development yang dikembangkan berdasarkan Tessmer. Metode penelitian ini terdiri dari tahap Preliminary (persiapan dan pendesainan) dan tahap prototyping (validasi, evaluasi dan revisi). Pengumpulan data dilakukan dengan menggunakan lembar validasi dan wawancara. Data validitas diperoleh dari komentar dan saran validator. Data kevalidan diperoleh pada tahap expert review. Media pembelajaran yang dikembangkan oleh peneliti divalidasi oleh 3 ahli yaitu ahli media, ahli soal dan ahli materi. Tujuan analisis data tahap expert review yaitu untuk memudahkan keputusan dalam merevisi media pembelajaran. Hasil penelitian menunjukkan bahwa media pembelajaran dikatakan valid secara kuantitatif dan kualitatif dengan persentase 85,6%. Kata kunci: Media Pembelajaran, Perkalian Dua Pecahan, Literasi Numerasi.
Peran Genetika pada Sifat Mengeram sebagai Dasar Seleksi pada Ayam Lokal: The role of genetics in brooding traits as a basis for selection in local chickens Bilyaro, Woki; Rahman Azis, Arif; Muhammad dani; Rafian, Teguh; Nova Widyasari, Dhini; Ramadhanti, Nurazizah; Amrullah Chaniago, Rizky; Marisa, Anggun; Maharani Dwipassa, Virna
Buletin Peternakan Tropis Vol. 6 No. 2 (2025): November 2025
Publisher : BPFP Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/bpt.6.2.197-202

Abstract

Broodiness is a natural reproductive behavior that plays a vital role in the success of hatching and maternal care in indigenous chickens. This behavior is governed by a complex interaction between endocrine and genetic factors, with the prolactin (PRL) gene serving as a key regulator. The prolactin hormone encoded by the PRL gene stimulates broody behavior, temporarily suppresses egg production, and enhances the maternal instinct to remain on the nest. Genetic variation in the PRL gene polymorphism is associated with the differences in the intensity and frequency of brooding behavior between chicken breeds and local populations. Specific alleles of the PRL gene are associated with increased broodiness, while others are linked to reduced expression and weakened maternal behavior. Studies on Indonesian local chickens demonstrate a significant upregulation of PRL expression during the brooding phase, confirming its central role in the regulation of reproductive behavior. These findings suggest that the PRL gene holds strong potential as a molecular marker in genetic selection programs. Through marker-assisted selection, breeders can maintain strong broody traits for natural hatching or suppress them to enhance egg productivity. Therefore, a deeper understanding of the structure, function, and genetic variability of the PRL gene provides a crucial foundation for developing adaptive, efficient, and sustainable breeding programs for indigenous chickens.
Co-Authors Amrullah Chaniago, Rizky Arif Rahman Azis Dumeva Putri, Agustiany Maharani Dwipassa, Virna Muhammad Dani Nova Widyasari, Dhini Ramadhanti, Nurazizah Riza Agustiani, Riza Teguh Rafian, Teguh Woki Bilyaro Zahra, Atika