Protobiont (Journal)
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PERTUMBUHAN BENIH IKAN JELAWAT (Leptobarbus hoevenii Blkr.) DENGAN PEMBERIAN PAKAN KOMERSIL YANG DITAMBAHKAN TEPUNG RIMPANG JAHE (Zingiber officinale Rosc.)
Full text linkOne type of freshwater fishhas the potential as animal protein is jelawat fish (Leptobarbus hoevenii Blkr). Jelawat fish is a Indonesian native fish found in several rivers in Sumatra and Kalimantan. This research aims to examine the growth response of jelawat fish (Leptobarbus hoevenii), fed commercial feed with addition of ginger rhizome flour. The research’s method used completely randomized design (CRD) with 5 treatments, namely the addition of ginger rhizome flour 0 g, 2.5 g, 5 g, 7.5 g, and 10g/kg feed with 3 replications. Each replication consisted of 10 jelawat fish seed. Data were analyzed using Analysis of Variance (ANOVA) with 5% confidence level. The results showed that the highest growth in weight and length was obtained ginger flour 10 g/kg of feed with the addition of ginger rhizome flour with a value of 2.36 g and 18.10 mm. The observations results that feed conversion parameters, growth rate and relative growth showed significant results with the addition of 10 g/kg of feed with addition of ginger rhizomeflour resulting in the highest feed conversion value off 1.133, growth rate 0.523 g/day and relative growth of 90.06%. However, the addition of ginger rhizome flour had no significant effect on the observed survival parameters and consumption rate
KARAKTER MORFOLOGI IKAN FAMILI CYPRINIDAE DI PERAIRAN GAMBUT PARIT NANAS KOTA PONTIANAK
Full text linkThe Cyprinidae family usually live in peat waters and have high tolerance to various water quality conditions. This study aims to determine the morphological characters of fish from the Cyprinidae in the Peat Waters of Parit Nanas, North Pontianak District, Pontianak City. The research was conducted from October to December 2021 at five stations and four replicates were conducted. The results found 4 species and 489 individuals consisting of D. rhomboocellatus (271 individuals), D. trifasciatus (63 individuals), O. melanopleura (4 individuals), and O. spilurus (151 individuals). The longest body size was owned by O. melanopleura, which ranged from 152.1-250.1 mm, while the smallest was D. rhomboocellatus which ranged from 23.2-51.9 mm. The morphological characters of each species of fish found can be distinguished from the differences in mouth structure, size, color, and body pattern
NEMATODA PARASIT GASTROINTESTINAL Pongo pygmaeus wurmbii (Tiedemann, 1880) DI STASIUN RISET CABANG PANTI, TAMAN NASIONAL GUNUNG PALUNG
Full text linkThe orangutans are one of the great apes whose existence is threatened with extinction. Infection from gastrointestinal nematodes is one of the inhibiting factors for the survival of orangutans. The study aims to find nematode parasites infection in orangutans. Observations were made by 27 fecal samples from 13 individual orangutans. All samples were analysed with qualitative methods (native, flotation, and sedimentation). The parasitic nematodes discovered were Ancylostomatidae (hookworm) (61%), Strongyloides stercoralis (61%), Mammomonogamus sp. (38%), Ternidens sp. (23%), Ascaris lumbricoides (23%), Trichuris trichiura (15%), and Trichostrongylus sp. (8%). This is the first study to identify Mammomonogamus sp. and Ternidens sp. in orangutan fecal samples from Gunung Palung National Park. Only about 4% of the 300 orangutans in Cabang Panti are known to be infected with gastrointestinal parasitic nematodes
MATURASI CACING NIPAH HITAM (Namalycastis cf. terrestris) DI PERAIRAN MANGROVE SUNGAI KAKAP KALIMANTAN BARAT
Full text linkThe maturity is an early indication into the reproduction stages, but the data are not available yet on black nypa palm worm (Namalycastis cf. terrestris). The research aims to determine the maturation level of black nypa palm worm. Data collected from mangrove forests which taken randomly. Sexual maturity stages were analyzed descriptively, while body size, stage of gamete development, and sexual maturation with one-way analysis of variance. This research obtained worm two juvenile, 61 immature with egg an average of 42.81μm, and five submature with egg diameter an average of 81.33μm respectively
PROFIL DARAH CACING NIPAH (Namalycastis terrestris) DI MUARA SUNGAI KAKAP, KABUPATEN KUBU RAYA, KALIMANTAN BARAT
Full text linkNamalycastis terrestris is one of three types of nipa worms commonly found in the Sungai Kakap Kubu Raya regency. Data regarding the blood of N. terrestris is still limited, and similar studies still refer to Oligochaeta. Observation of normal blood cell structure has been widely used to evaluate the health of farmed animals. This study aimed to determine the blood profile of N. terrestris. 15 male and 15 female N. terrestris nipa worms were used. Observations were carried out with a complete blood examination, including a blood smear, total hemocytes count, hemoglobin concentration level, and blood viscosity test. The results showed that hemocytes diameter ranged from 2,86-3 µm, total hemocytes values ranged from 2,38-2,39x103 sel/µL, hemoglobin concentration was 7,40-7,52 g/dL and viscosity was 3,40-3,52 N.s/m3. Blood smears on both female and male N. terrestris showed hemocytes in the form of solid balls of purplish red color. Larger hemocytes diameter were found in the female. Total hemocytes, hemoglobin concentration and blood viscosity in females had higher values than males
ISOLASI DAN KARAKTERISASI GENUS BAKTERI ASAM LAKTAT DARI FERMENTASI DAGING BUAH PISANG KEPOK (Musa paradisiaca L.)
Full text linkLactic Acid Bacteria (LAB) are bacteria that are beneficial for the health of the body by improving the balance of intestinal microflora. Lactic acid bacteria can be isolated from fruits and vegetables, including kepok bananas (Musa paradisiaca L.). Kepok bananas have a higher carbohydrate content than other bananas, which is 27%. This study aims to determine the characteristics of the genus of lactic acid bacteria isolated from fermented kepok bananas (Musa paradisiacal L.). Isolation technique was carried out by pouring method and using MRS Broth and MRS Agar selective media. Identification of lactic acid bacteria isolates macroscopically and microscopically with gram staining and biochemical tests. The results obtained were 5 (five) isolates of lactic acid bacteria, namely BALF1, BALF2, BALF3, BALF4, and BALF5 which had the same morphological and biochemical characters as members of the genus Lactobacillus
STRUKTUR KOMUNITAS CACING TANAH (Oligochaeta) DI DUSUN GUNUNG LONCEK DESA TELUK BAKUNG KABUPATEN KUBU RAYA
Full text linkDusun Gunung Loncek has peatland vegetation in which there are oil palm plantations, local rubber plants and other wild plants. These habitat differences can affect the community and population of earthworms. This study aims to determine the structure of the earthworm community in Dusun Gunung Loncek and the environmental factors that affect it. This study was conducted in August 2021. Each station made 5 plots randomly measuring 5x5 m, each plot was made squared 1x1 m as many as 5 pieces and placed randomly. All earthworms in the square were taken and collected using the hand sorting method with a depth of 0-10 cm, 10-20 cm and 20-30 cm. Based on the results of the study, three species of earthworms were found (Pheretima hawayana, Megascolex sp., and Perionyx excavatus). Pheretima hawayana has the highest density while Megascolex sp.has the lowest density. The highest diversity index was found at station II (H’=0.833) and the lowest diversity index was found at station V (H’=0.623). The results of PCA analysis can be found that the physical and chemical factors that most influenced the presence of earthworms at each research station were soil moisture, dust fraction, C-organic, and soil temperature
KARAKTER ISOLAT JAMUR RIZOSFER TANAMAN KOPI (Coffea sp.) DAN JAMUR PENYEBAB BUSUK BUAH KOPI
Full text linkCoffee pod rot disease (Coffea sp.) is one of the diseases that can reduce fruit quality. This coffee fruit rot disease is attacked by a fungus (Fusarium sp.). Control of coffee berry rot disease can be done by using biological agents in the form of rhizosphere fungi which have antagonistic properties against pathogenic fungi. This study aims to determine the types of fungi, macroscopic and microscopic characteristics of fungi isolated from coffee cherries with symptoms of fruit rot and rhizosphere fungi of coffee plants. Isolation of pathogenic fungi and rhizosphere was carried out by the dilution method. The pathogenic fungi that were isolated from the coffee fruit with rotten symptoms were Fusarium sp. JPTK1 and Fusarium sp. JPTK2. Fusarium sp. JPTK1 has a round shape and a cotton-like texture, while the fungus Fusarium sp. JPTK2 is round in shape with a cotton-like and wavy texture. The rhizosphere fungi that were isolated from the roots of healthy coffee plants, namely Aspergillus sp. JRTK1, Penicillium sp. JRTK2, and Trichoderma sp. JRTK3. Aspergillus sp. JRTK1 has black colonies on the lower surface and white on the lower surface. The fungus Penicillium sp. JRTK2 has a green top surface with white edges and a pink bottom surface with yellow edges. Trichoderma sp. JRTK3 has a dark green color on the top surface and white on the bottom surface
KARAKTERISTIK MORFOLOGI PADA TUMBUHAN PAKU Nephrolepis biserrata (Sw.) Schott DAN Nephrolepis exaltata (L.) Schott DI KAWASAN KAMPUS UNIVERSITAS TANJUNGPURA
Full text linkNephrolepis is one of the genus of fern plants (Pteridophyta) that is widespread almost throughout the territory of Indonesia. Tanjungpura University area in Pontianak city is one of the open areas that are overgrown with Nephrolepis biserrata and Nephrolepis exaltata. Data from the exploration of Nephrolepis species in this area have been carried out but information from the aspects morphology characteristics of Nephrolepis biserrata and Nephrolepis exaltata plants are still limited. The purpose of this study was to determine the morphological characteristics levels in Nephrolepis exaltata and Nephrolepis biserrata found in the campus area of Tanjungpura University. The study was conducted in October 2020 – May 2022. Sampling is carried out by purposive sampling technique. The data from the study were analyzed descriptively equipped with photos and observations. The results showed that N. biserrata has a large size than N. exaltata. Similarities of two species in the morphological characters in the leaf base emarginatus on one side, alternating and opposite leaf arrangement, green leaf color, light brown rhizome color, light brown, dark brown, and whitish green on root color, and the presence of scales on the stipe, abaxial and adaxial leaves
KERAGAMAN KARAKTER MORFOLOGI PADI GOGO DAN SAWAH LOKAL DI KECAMANTAN SENGAH TEMILA KABUPATEN LANDAK
Full text linkLocal rice is a rice variety that has existed and been cultivated from generation to generation by farmers and is a genetic resource that needs to be preserved. This study aims to determine the morphological characters of local rice plants in Sengah Temila District, Landak Regency. The method used in this research is descriptive qualitative method. Observations of 36 morphological characters of stems, leaves, panicles and grain/seeds were carried out in the plant growth. Based on the research that has been done, 7 characters are monomorphic and 29 characters are polymorphic from 36 morphological characters of local rice in Sengah Temila District. Based on the grouping analysis 8 local rice varieties have a similarity level of 0.95 (95%) and are divided into 4 groups, namely: group 1 consists of Maranggo and Palawangk Amih varieties, group 2 consists of Into’, Palawangk Melawi and Ketan Hitam, group 3 consists of on Angek and Sarendah varieties, and group 4 consist of Hitam variety