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All Journal Jurnal Hortikultura Indonesia (JHI) Pastura; Journal Of Tropical Forage Science Bumi Lestari Ecotrophic, Journal of Environmental Science Journal of Tropical Biodiversity and Biotechnology Eksakta : Berkala Ilmiah Bidang MIPA Floribunda Jurnal Ilmiah Sains Metamorfosa: Journal of Biological Science Open Access DRIVERset Jurnal Biologi Udayana
I Made Saka Wijaya
Program Studi Biologi, Fakultas Matematika Dan Ilmu Pengetahuan Alam, Universitas Udayana
Agriculture, Biological Sciences & Forestry Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Energy Engineering Environmental Science Immunology & microbiology Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Other

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STRATEGIC IMPLEMENTATION OF ANIMAL WELFARE IN PROVIDING BALI CATTLE FORAGE M. A. P. Duarsa; I W. Suarna; A. A. A. S. Trisnadewi; I M. Saka Wijaya
Pastura : Jurnal Ilmu Tumbuhan Pakan Ternak Vol 9 No 2 (2020): Pastura Vol. 9 No. 2 Tahun 2020
Publisher : Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (384.619 KB) | DOI: 10.24843/Pastura.2020.v09.i02.p11

Abstract

Sesuai amanat sustainable development goals (SDG’s) usaha peternakan wajib mengarusutamakan kaedah-kaedah pembangunan berkelanjutan yang ramah lingkungan. Peningkatan permintaan akan daging sapi harus diimbangi dengan peningkatan produktivitas sapi untuk memenuhi ketersediaan populasi dan kualitas daging sapi. Kualitas ternak sapi yang dihasilkan sangat tergantung kepada ketersediaan dan kualitas hijauan yang dimakan ternak. Ketersediaan berbagai limbah pertanian dan industri mendorong upaya pengolahan limbah menjadi pakan ternak ruminansia. Limbah yang diolah langsung diberikan kepada ternak ruminansia sebagai pakan alternatif. Limbah biasanya dapat megandung bahan berbahaya, zat anti nutrisi, dan memerlukan biaya yang lebih tinggi untuk mengolahnya. Untuk mengakomodasi kearifan budaya, memelihara harmonisasi spiritualitas bagi petani/peternak, dan menerapkan prinsip-prinsip animal welfare, selayaknya ternak ruminansia seperti sapi bali mendapatkan makanan yang baik yang berasal dari tanaman pakan ternak dengan kualitas yang baik. Dengan demikian limbah harus diolah menjadi pupuk yang berkualitas tinggi sehingga dapat menyediakan hijauan berkualitas bagi ternak sapi bali. Output yang berkualitas menuntut input yang berkualitas juga. Kata kunci: limbah, animal welfare, hijauan berkualitas
KARAKTERISTIK TUMBUH Asystasia gangetica PADA BERBAGAI ARAS PEMUPUKAN UREA I W. Suarna; N. N. Suryani; K.M. Budiasa; I M. Saka Wijaya
Pastura : Jurnal Ilmu Tumbuhan Pakan Ternak Vol 9 No 1 (2019): Pastura Vol. 9 No. 1 Tahun 2019
Publisher : Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (816.285 KB) | DOI: 10.24843/Pastura.2019.v09.i01.p06

Abstract

Asystasia gangetica is a native plant that has the potential as a superior forage. The potential superiority of A. gangetica is not widely known by farmers in Bali. A study has been carried out with the aim to determine the growth and growth characteristics of A. gangetica as a forage. A completely randomized design with 5 levels of urea fertilizer treatment and 4 replications was carried out at Sesetan Denpasar research station. The results showed that the plant growth indicated by the variable number of branches, number of leaves, and shoot root ratio gave the highest yield on the level of urea fertilizer 50 kg ha-1. Variable characteristics of plant growth such as Leaf Area Ratio, Leaf stem ratio, and plant length, have the same tendency, although they do not show significant differences. Observing the growth and growth characteristics of plants, it can be concluded that the use of urea fertilizer as much as 50 kg ha-1 provides the best growth and application of urea fertilizer exceeding 50 kg ha-1 will adversely affect the growth of A. gangetica. Keywords: A. gangetica, urea, growth, growth characteristics
MORPHOLOGICAL CHARACTERISTIC OF SWORD BEAN (Canavalia gladiata (JACQ.) DC.: FABACEAE) AND ITS POTENCY AS FODDER I Made Saka Wijaya; I Wayan Suarna
Pastura : Jurnal Ilmu Tumbuhan Pakan Ternak Vol 9 No 2 (2020): Pastura Vol. 9 No. 2 Tahun 2020
Publisher : Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (463.453 KB) | DOI: 10.24843/Pastura.2020.v09.i02.p12

Abstract

Indonesia memiliki berbagai jenis tumbuhan yang sangat potensial untuk dikembangkan sebagai pakanternak, salah satunya adalah kacang pedang (Canavalia gladiata (Jacq.) DC.). Kacang pedang adalah jeniskoro yang belum dimanfaatkan dengan optimal. Di Indonesia, bahkan dunia, belum banyak penelitianyang menggali potensi kacang pedang sebagai pakan ternak, padahal pengembangannya sebagai pakanternak alternatif cukup menjanjikan. Untuk mengembangkan lebih lanjut, diperlukan kajian mengenaikarakteristik morfologis dari kacang pedang untuk mencegah ambiguitas taksonomik. Maka dari itu penelitianini bertujuan untuk mempelajari karakteristrik morfologis dari kacang pedang serta potensinya sebagai pakanternak. Penelitan dilakukan selama bulan Mei 2019 sampai Maret 2020. Biji mulai disemai pada bulan Mei(sebagai bulan ke-1) dan dilakukan karakterisasi saat terdapat polong yang sudah matang pada bulan Maret(bulan ke-10). Fase vegetatif berlangsung selama 4-5 bulan sebelum tumbuhan mulai mengeluarkan bungapertama. Fase generatif memiliki durasi yang bervariasi, terutama pada pematangan polong. Kematanganpolong berlangsung selama 5-6 bulan, bahkan lebih. Hasil penelitian menunjukkan bahwa kacang pedang(Canavalia gladiata (Jacq.) DC.) memiliki karakteristik morfologis yang mencolok pada ukuran daun yangbesar, bunga berwarna putih yang harum, polong yang berukuran besar, serta biji yang berwarna merah.Daun dan biji kacang pedang berpotensi untuk dikembangkan sebagai pakan ternak alternatif. Biji kacangpedang mengandung berbagai senyawa nutrien unggulan sebagai pakan ternak.Kata kunci: Canavalia, karakter morfologis, pakan alternatif, pakan hijauan
Checklist, Indeks Ekologi, dan Status Konservasi Komunitas Fauna Akuatik di Kawasan Sungai Unda dan Sekitar Pantai Jumpai, Kabupaten Klungkung, Provinsi Bali Gede Surya Indrawan; Putu Angga Wiradana; I Made Saka Wijaya; Abd. Rahman As-syakur; M. Rheza Rizki Syahputra; I Made Sara Wijana
Bumi Lestari Journal of Environment Vol 21 No 1 (2021)
Publisher : Environmental Research Center (PPLH) of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/blje.2021.v21.i01.p02

Abstract

Aquatic organisms or nekton have an important role in supporting the stability of the aquatic environment and human life. This study aims to determine the nekton type community, ecological index, and their conservation status in the Unda River area and around Jumpai Beach, Klungkung Regency, Bali. The study was conducted in July - August 2020. The study was conducted in 2 communities, namely Macrozoobenthos and Nekton. Macrozoobenthos samples were collected using the quadratic method in the Jumpai Beach area and the direct observation method along the Unda River. Nekton communities are collected through primary data using "survey methods" and secondary data through interviews with fishermen and local communities. The ecological index data were analyzed using the Shannon-Weiner diversity index (H'), dominance index (C), and uniformity index (E), while the data on Nekton type and conservation status were analyzed descriptively. The nekton species community in the waters of the Unda River and Jumpai Beach areas was obtained as many as 26 species in 21 families which were dominated by Kepala Timah (Aplocheilus panchax) and sepat rawa (Trichogaster trichopterus), while Nautica sp for the Macrozoobenthos community. The ecological index of the aquatic community is the Shannon-Weiner Diversity Index (H') value of 2.98 (moderate), the wealth index (R) of 3.95 (moderate), and the evenness index (E) of 1.21. (High). The highest percentage ratio of nekton communities was obtained by the Macrozoobenthos community, namely 53%, while the nekton species was 46%. Conservation status shows that 13 species are included in the LC (Least Concern) category, 12 species are included in the NE (Not Evaluated) category, and 1 species are included in the VU (Vulnerable) category.
Butterfly Pea (Clitoria ternatea L.: Fabaceae) and Its Morphological Variations in Bali I Wayan Suarna; I Made Saka Wijaya
Journal of Tropical Biodiversity and Biotechnology Vol 6, No 2 (2021): August
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jtbb.63013

Abstract

Butterfly pea (Clitoria ternatea L.) is an important perennial herbaceous plant with a range of uses as ornamental plants, fodder crops, medicine, and sources of natural food colorant and antioxidants. The leaves and pods are commonly used as a source of protein in fodder, while the flowers are usually dried and processed as a high antioxidant-containing tea. The blue variant of butterfly pea was the most commonly used variety, although there are quite diverse butterfly pea varieties. The present study aimed to observe the morphological variations among the 26 butterfly pea accessions that originated from a wide range of areas in Bali. The explorative method was used to obtain diverse specimens (accessions) of butterfly pea in Bali, and subsequently, morphological characterization of the accessions was performed. The primary data of morphological traits that were recorded included stems, leaves, flower structures, flower colors, pods, and seeds. The data were analyzed descriptively to determine the morphological variations between accessions. The results showed three major morphological variations: (i) the colour of the flower (corolla), (ii) the corolla structure, and (iii) the stamen structure. The colour of corolla has four variations: white, mauve, light blue, and dark blue; while the corolla structure has two variations: normal and multiple layered corollas. The stamen character showed a correlation with the structure of the corolla. The normal corolla has diadelphous stamens, while the multiple layered corollas have solitary stamens. These morphological variations are the genetic richness of Indonesia’s biodiversity and should be protected and conserved.
MORPHOLOGICAL VARIATIONS OF TERRESTRIAL ORCHID THELYMITRA JAVANICA BLUME (ORCHIDACEAE: ORCHIDOIDEAE) IN MOUNT ARJUNO, LAWU, AND SUMBING, JAVA – INDONESIA I Made Saka Wijaya; Budi Setiadi Daryono; Purnomo Purnomo
Floribunda Vol. 6 No. 1 (2018)
Publisher : PTTI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (339.355 KB) | DOI: 10.32556/floribunda.v6i1.2018.221

Abstract

I Made Saka Wijaya, Budi Setiadi Daryono & Purnomo. 2018. Variasi Morfologi Anggrek Tanah Thelymitra javanica Blume (Orchidaceae: Orchidoideae) di G. Arjuno, G. Lawu dan G. Sumbing, Jawa-Indonesia. Floribunda 6(1): 22–31. — Tujuan kajian ini adalah untuk mengetahui variasi morfologi dan kekerabatan fenetik dari T. javanica dari ketiga gunung tersebut. Tiga belas sampel dikoleksi dari sepanjang jalur pendakian. Pengamatan morfologi dilakukan terhadap organ akar, umbi, daun, tangkai perbungaan, braktea, bunga, buah dan biji. Dendrogram dibangun dengan metoda kluster UPGMA dengan algoritma “Percent’s Similarity”. Sedangkan analisis PCA dilakukan dengan algoritma “Euclidean Distance” menggunakan perangkat lunak MVSP v.3.1. Hasil studi menunjukkan bahwa variasi morfologi jenis T. javanica tergolong plastis dalam hal ukuran dan warna, terutama warna tangkai perbungaan, mahkota, labelum, ovarium dan rangka ovarium, yang dapat digunakan untuk membedakan populasi atau ekotipe.Kata kunci: Ekotipe, Orchidaceae, fenetik, plastisitas, Thelymitra javanica. I Made Saka Wijaya, Budi Setiadi Daryono & Purnomo. 2018. Morphological Variations of Terrestrial Orchid Thelymitra javanica Blume (Orchidaceae: Orchidoideae) in Mount Arjuno, Lawu, and Sumbing, Java- Indonesia. Floribunda 6(1): 22–31. — The aims of this study were to observe morphological variations and phenetic relationships of T. javanica from the three mountains. Thirteen samples were colected along the tracking routes, morphological observation was based on character of root, tuber, leaf, peduncle, floral bract, flower, fruit, and seed. The data were compile descriptively to identify variations that subsequently scored. Dendrogram were constructed by UPGMA clastering method with Percent’s Similarity algorithm, while Principal Component Analysis was done with Euclidean Distance algorithm using MVSP v.3.1. software. The result shows that morphological variations of T. javanica is found to be plastis for size and color, especially color of peduncle, petals, labellum, ovary, and ovary ribs that can be used to separate distinct population or ecotype.Keywords: Ecotype, Orchidaceae, phenetic, plasticity, Thelymitra javanica 
Leaf Epidermal Comparison of Phasey Bean (Macroptilium lathyroides) and Siratro (Macroptilium atropurpureum) I Made Saka Wijaya; Eniek Kriswiyanti
EKSAKTA: Berkala Ilmiah Bidang MIPA Vol. 23 No. 02 (2022): 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 (834.519 KB) | DOI: 10.24036/eksakta/vol23-iss02/317

Abstract

Phasey bean (Macroptilium lathyroides) and siratro (Macroptilium atropurpureum) are introduced legumes that become a common species in pastureland. The nutritional content of these legumes has been explored, but on the contrary the anatomical study. The anatomical trait, especially in leaf epidermal, have been used to increase the understanding in taxonomy. This study aimed to investigate the leaf epidermal variability among phasey bean and siratro. The method used longitudinal section for upper and lower epidermal, then stained in safranin 0,1%. The results show that the upper epidermal in phasey bean have polygonal epidermal cell, while the lower part and the both part of siratro have irregular-shaped. The type of stomata in upper epidermal of phasey bean is paracytic and the lower epidermal is paracytic and anomocytic. Both epidermal sides in siratro have paracytic and anomocytic stomata. The index of stomata in phasey bean is higher than the siratro, but the index of trichomes in phasey bean is lower than siratro. The trichomes only absent in upper epidermal of phasey bean. Both plants have a similar types of trichomes: capitate glandular trichomes and linear non-glandular trichomes.
Java Sparrow Lonchura oryzivora at Bali Barat National Park: Do They Still Persist? Luh Putu Eswaryanti Kusuma Yuni; I Made Saka Wijaya; Mas Untung; Gde Oka Widiyavedanta; Egmont Congdenjit; Pramana Yuda
Journal of Tropical Biodiversity and Biotechnology Vol 7, No 2 (2022): August
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jtbb.71503

Abstract

The main purpose of the establishment Bali Barat National Park was to conserve the endemic endangered Bali Starling. However, based on data on 2004, one endangered species, Java Sparrow Lonchura oryzivora also resided in there. Current official report of sighting is ultimately required since it acts as reference in the management of a conservation area. We reported four sightings of Java Sparrow flocks occurred in June, 2021 at the Prapat Agung Peninsula, 28 individuals in total consisted of 13 adults and 15 juveniles, in a transition area of monsoon forest and savannah. The biggest flock sighted was eleven individuals. This study therefore confirmed that the Java Sparrow was still persisted at the Bali Barat National Park in 2021, in Prapat Agung Peninsula in particular. 
Struktur dan Komposisi Vegetasi pada Suksesi di Muara Sungai Unda, Kabupaten Klungkung, Bali I Made Saka Wijaya; Gede Surya Indrawan; Putu Angga Wiradana; I Made Sara Wijana; Abd. Rahman As-syakur; Adi Ariyanto Wibisono; Viryanando Evan Rahardja
JURNAL ILMIAH SAINS Volume 21 Nomor 1, April 2021
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1094.862 KB) | DOI: 10.35799/jis.21.1.2021.31744

Abstract

 Letusan Gunung Agung pada tahun 1963 memberikan dampak ekologis di sekitar muara Sungai Unda, Kabupaten Klungkung, Bali. Lahar yang mengalir melalui sungai tersebut menyebabkan terjadinya suksesi primer akibat tutupan pasir dan batu. Selama 57 tahun, muara Sungai Unda tidak hanya mengalami suksesi alam, tetapi juga mengalami suksesi antropogenik melalui pemanfaatan sebagai tambang pasir, lahan pastura, dan permukiman sementara.  Penelitian ini bertujuan untuk mempelajari struktur dan komposisi vegetasi pada suksesi di muara Sungai Unda. Penentuan struktur vegetasi dilakukan pada 8 stasiun penelitian dengan menggunakan metode plot dengan jumlah 24 plot pohon (20 x 20 m) dan 48 plot vegetasi lantai (1 x 1 m). Data dianalisis menggunakan parameter ekologis seperti densitas, densitas relatif, frekuensi, frekuensi relatif, dominansi, dominansi relatif, dan nilai penting, serta dilengkapi dengan indeks keragaman Shannon-Weiner (H’), indeks dominansi (C), dan indeks keseragaman (E). Hasil penelitian menunjukkan bahwa semak dan rumput merupakan bentuk hidup yang paling menentukan struktur vegetasi di Muara Sungai Unda. Beberapa spesies penyusun vegetasi tersebut merupakan tumbuhan invasif seperti yang harus dikontrol populasinya adalah Typha angustifolia, Ipomoea carnea, Chromolaena odorata, Lantana camara, dan Vachellia farnesiana. Berdasarkan indeks yang digunakan, keanekaragaman vegetasi termasuk dalam kategori tinggi, tanpa ada jenis yang mendominasi, dengan persebaran yang merata.Kata kunci: Gunung Agung; spesies invasive; suksesi antropogenik; vegetasi suksesiStructure and Composition of Successional Vegetation in Unda River, Klungkung Regency, BaliABSTRACTMount Agung eruption in 1963 caused major ecological impact around Unda River, Klungkung Regency, Bali. The volcanic mudflow that surpass the Unda River watershed initiate the primary succession in those areas. This research aimed to study the structure and composition of successional vegetation in Unda River. Twenty-four tree plots (20 x 20 m) and 48 understorey plots (1 x 1 m) derived from 8 research stations were used to determine the structure of vegetation. The data analyzed by ecological parameters, such as density, relative density, frequency, relative frequency, dominancy, relative dominancy, and importance value, then completed with Shannon-Weiner diversity index (H’), dominancy index (C), and evenness index (E). The results shown that the vegetation structure in Unda River determined by two major growth form: shrubs and grasses. Some notable invasive species that should be controlled are Typha angustifolia, Ipomoea carnea, Chromolaena odorata, Lantana camara, and Vachellia farnesiana. Based on the three indexes, the vegetation diversity was categorized as high diversity, without any species domination, and the distribution of the species are uniformKeywords: Anthropogenic succession; invasive species; Mount Agung; successional vegetation
INDEKS STRUKTUR KOMUNITAS DAN SAPROBITAS PLANKTON SERTA CHECKLIST KEBERADAAN NEKTON DI PERAIRAN DANAU BERATAN, BALI Gede Surya Indrawan; I Made Sara Wijana; I Made Saka Wijaya; Abd. Rahman As-syakur; I Putu Sugiana; I Made Yunarta
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 16 No 2 (2022)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/EJES.2022.v16.i02.p10

Abstract

Beratan Lake was mainly popular for tourism and aquaculture activities that affecting water's environmental characteristics. The water healthiness indicator can be seen through the organism's existence, namely plankton to nekton biota that can be uses as an essential parameter in monitoring water conditions. This study aims to determine the plankton community structure index, saprobity index and the presence of nektons in the Beratan Lake. Plankton were sampled using the pouring method while the nekton sample was taken randomly through direct sampling with fishing nets and conducted interviews with the surrounding local community and fishermen. The results of the study found that the abundance of phytoplankton was dominated by Staurastrum with abundance level 1,836.92 ind/L. Meanwhile, the zooplankton was dominated by Rotifera with abundance level 8.17 ind/L. The diversity index, uniformity and dominance of phytoplankton are 1.31, 0.60 and 0.33 respectively, while the saprobity index is 1.08 which classifies the waters of Beratan Lake as being in a lightly polluted condition. There were 18 species of nektons in Beratan Lake were found, with one endemic species Rasbora balinensis and 13 foreign fish. There also an invasive species, namely zebrafish (Amatitlania nigrofasciata) was found in this Lake. From the results of the study, we hope that the government in cooperation with the surrounding community, can control the ecological conditions of the waters of Beratan Lake, especially the presence of invasive species which are increasing in number, as well as protect endemic species. Keywords: Abundance; beratan lake; community structure; plankton; saprobity
Co-Authors Abd. Rahman As-syakur Adi Ariyanto Wibisono Aditya Hani Anak Agung Ayu Sri Trisnadewi Budi Setiadi Daryono Dewa Ayu Intan Tirta Sari Dewa Ayu Intan Tirta Sari Eddie van Etten Egmont Congdenjit Egmont congdenjit ENIEK KRISWIYANTI Fernando Putra Gde Oka Widiyavedanta Gde Oka Widiyavedanta Gede Surya Indrawan Gede Surya Indrawan I Dewa Putu Darma I Ketut Ginantra I Ketut Mangku Budiasa I Made Sara Wijana I Made Sara Wijana I Made Yunarta I Putu Sugiana I Wayan Suarna IDA AYU ASTARINI Ida Ayu Eka Pertiwi Sari Ida Ayu Eka Pertiwi Sari Komang Kartika Indi Swari LUH Puru ESWARYANTI KUSUMA YUNI M. Rheza Rizki Syahputra M. Rheza Rizki Syahputra Made Maha Widyartha Made Ria Defiani Magna Anuraga Putra Duarsa Martin Joni Mas Untung Muhammad Bima Atmaja Najla Nurhaya Ni Luh Putu Kayika Febryanti Ni Made Riris Widiari Ni Made Suartini Ni Nyoman Suryani Pramana Yuda Purnomo Purnomo Putu Angga Wiradana Putu Angga Wiradana Rajif Iryadi Risqa Izzatul Zulfa Sutomo Sutomo Sutomo Sutomo Viryanando Evan Rahardja Yan Ramona