Dragonfly is an insect which belongs to the Odonata order and consists of the suborder Anisoptera (dragonflies) and the suborder Zygoptera (damselflies). Its habitat is very wide including in the rice field. Dragonflies and damselflies are predatory insects, both in the form of nymphs and adults, so their role is very important in maintaining the balance of the ecosystem. The research was conducted to finding out the dragonfly species found in rice plantations in rice fields around the Denpasar area. Sampling was done by catching using insect nets on rice plantations, in the morning from 08.00 to 11.00 WITA, and in the afternoon from 15.00 to 17.00 WITA. Dragonfly samples obtained were then preserved to be identified by observing the morphological characters based on Hanum et al. (2013), and Sigit et al. (2013). Dragonfly species found in rice plantations areas in several rice fields around Denpasar are as many as 8 species which are included in 2 suborder, namely suborder Anisoptera (5 species) and suborder Zygoptera (3 species), Species of suborder Anisoptera (Potamarcha congener) only found in rice plantations in East Denpasar. Keywords: insects, dragonfly habitat, identification, morphological characters

Penelitian ini bertujuan untuk mengevaluasi pengaruh penggunaan tepung daun ubi jalar (Ipomoea batatas L.) fermentasi  dalam ransum terhadap performa produksi ayam broiler. Penelitian ini dilaksanakan pada bulan Mei-Juni 2021. Penelitian menggunakan Rancangan Acak Lengkap (RAL) untuk menguji  4 perlakuan dengan 4 ulangan. Jumlah sampel dalam penelitian ini terdiri dari 80 ekor ayam broiler dengan Perlakuan terdiri atas: P0 = Ransum kontrol, P1 = 5% (tepung daun ubi jalar fermentasi), P2 =10% (tepung daun ubi jalar fermentasi), dan P3 =15% (tepung daun ubi jalar fermentasi). Variabel penelitian adalah konsumsi ransum, pertambahan bobot badan, dan konversi ransum. Hasil penelitian menunjukkan bahwa rataan konsumsi ransum ayam broiler yang di peroleh dalam penelitian ini berkisar antara 82,00-95,94 g/ekor/hari, pertambahan bobot badan berkisar antara 42.33-57.41 g/ekor/hari, konversi ransum berkisar antara 1.67-1.94g/ekor/hari. Kesimpulan hasil penelitian ini adalah penambahan tepung daun ubi jalar fermentasi dengan level 5 sampai 15% memberikan pengaruh nyata (P<0,05) terhadap konsumsi ransum, pertambahan bobot badan dan konversi ransum ayam broiler.

In Indonesian national economics, maize is a second food source after rice. The production of maize in some aspect is affected by the presence of insect particularly Orthopteran Order. The information of advantage and disadvantage of insects is useful for farmers. This research aimed to determine the species of Orthopteran and it is role to maize plant in the Village Kesiman, Denpasar. This research was conducted from December 2015 to February 2016. Insect was collected using sweeping net accordingly in each plot of maize plants. The plot was square form with the size of 10 m x 25 m. The sample was collected from the maize plant in the Ve phase until physiological maturation phase. in each phase, from 07.00 am until 10.00 am Bali time. Sample was collected for 15 minutes per plot and repeated three times. The insects collected was identified, and the insect density was predicted following Krebs (1989). As many as 242 individual insect which belong to Orthopteran Order was collected. Those belong to 8 families and 25 species. The species were Atractomorpha sp., Orchelimum sp., Phlaeoba sp., Gastrimargus sp., Urnisiella sp., Metaleptea brevicornis, Xenocatantops sp., Scudderia sp., Calolampra sp., Eritettix sp., Platyzoteria sp., Conocephalus strictus, Morabine sp., Acrida sp., Tenodera sp., Stagmomantis sp., Blattela sp., Periplaneta sp., Tettigidea lateralis, Mantis sp., Gryllus sp., and Anaxipha exigua, Tettigidea sp. 2, Tettigidea sp. 1, and unidentified (species x). Families that act as omnivores are Family Blattidae and Grillidae, families that act as herbivores are Pyrgomorphidae, Acrididae, Tettigonidae, Eumastacidae, and Tetrigidae, while families that act as predators are Mantidae. Keyword : maize, orthopteran, insect species, insect role.

Gastropoda umum dikenal dengan nama siput atau keong yang dapat hidup di beberapa habitat termasuk di habitat sawah. Gastropoda sawah ada yang merugikan karena dapat merusak tanaman tetapi ada juga yang dapat dimanfaatkan dari keberadaannya tersebut. Keberadaan Gastropoda sawah dipengaruhi oleh faktor lingkungan. Faktor lingkungan tentu berbeda pada ketinggian tempat yang berbeda sehingga kemungkinan berpengaruh terhadap jenis Gastropoda yang ada. Tujuan dari penelitian ini adalah untuk mengetahui diversitas Gastropoda yang terdapat di habitat sawah dengan ketinggian berbeda. Sampel Gastropoda diambil pada beberapa persawahan dengan ketinggian tempat berbeda yaitu di bawah 100m dpl, 100 sampai 300m dpl dan di atas 300m sampai pada ketinggian 500m dpl. Pengambilan sampel dilakukan dengan membuat kuadrat 1x1m dan diletakkan pada masing-masing sudut petak sawah dan di bagian tengah sawah. Pengambilan sampel juga dilakukan pada saluran irigasi yang mengairi sawah tersebut. Gastropoda yang ditemukan adalah enam jenis dimana Lymnaea rubiginosa dan Digoniostoma truncatum hanya ditemukan pada petak sawah masing-masing lokasi dan jenis Terebia granifera hanya ditemukan di saluran irigasi. Melanoides tuberculata, Melanoides maculata dan Pomacea canaliculata ditemukan di petak sawah dan saluran irigasi. Lokasi I dan II mempunyai indeks diversitas sedang (1,360 dan 1,408) sedangkan indeks diversitas lokasi III rendah (0,795).

The use of whitening vitamin C to make the skin brighter in the long term, however can cause side effects. The purpose of this study was to investigate the side effects of long-term high dose injections of whitening vitamin C plasma glucose and cholesterol level. This study used rats (Rattus norvegicus L.) as experimental animals. The rats randomly divided into five groups consisting of ten rats each group. Four groups were administered injections of white vitamin C and one group as control animal. The design used in this study was a complete randomized design (RAL) and the treatments were different long term of injections of high-dose whitening vitamin C, ie 30-day injections (P1), 50-day injections (P2), 70-day injections (P3), 90 days of injections (P4) and control (P0). The treatment was repeated ten times. The parameters observed were glucose and cholesterol rats plasma levels before and after high-dose whitening vitamin C injection treatment. Data was analysed by ANOVA allowed by Duncan’s Test. The results indicated that rats glucose plasma levels injected by high dose of whitening vitamin C in long-term between control and treatment showed significant differences (P = 0.005) and cholesterol plasma levels showed significant different too (P = 000). Glucose and cholesterol plasma levels of rats injected by high doses of whitening vitamin C in long term tend to decrease.