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Jurnal Biologi Udayana
Number of Followers: 0  

  This is an Open Access Journal Open Access journal
ISSN (Print) 1410-5292
Published by Universitas Udayana Homepage  [72 journals]
  • AKTIVITAS HARIAN BURUNG KUNTUL KECIL (Egretta garzetta) DI PULAU SERANGAN,
           BALI

    • Authors: M. RHEZA RIZKI SYAHPUTRA, I KETUT GINANTRA, AA. Gde Raka Dalem
      Pages: 1 - 6
      Abstract: A study on activity of the Little Egret (Egretta garzetta) was conducted in Serangan Island, southern part of
      Bali between May and June 2016. The aim of this study was to find out daily activities of these birds in three
      different habitats: lagoons, mangrove forests and muddy beaches. Preliminary observation was conducted through
      Ad Libitum sampling, while the sample on the main study was through a scan sampling method. The data was
      collected through recording activities of the egret on interval of 30 seconds within two hours. The data collection
      was undertaken in three periods: morning, afternoon and evening. The colony of observed egrets was chosen
      randomly across habitats and time periods. Data collected were descriptively or quantitatively analysed. Results of
      the study showed that from the three observation periods, the egret activities were dominated by the same
      activities, that was foraging, but with different magnitudes or percentages. In contrast, activities with the lowest
      percentage was agonistic. In the lagoon area, the percentage of the activity of foraging was as follows: in the
      morning it was 50.15%, in the afternoon 46,62%, and in the evening 49,63%. In mangrove areas the percentage of
      foraging activities was as follows: in the morning it was 52.46%, in the afternoon 41.60%, and in the evening
      50.83%. The percentage of foraging activities in muddy beaches was as follows: in the morning it was 50.18%, in
      the afternoon 42.70%, and in the evening 49,65%.
      Keywords : little egret, Serangan Island, daily activities, habitat, Bali
      PubDate: 2018-06-30
      Issue No: Vol. 22, No. 1 (2018)
       
  • LIPID PROFILE OF MALE LOCAL RABBIT (Lepus sp.) THAT GIVEN COMMERCIAL FEED
           SUPPLEMENTED BY COD LIVER OIL

    • Authors: NI GUSTI AYU MANIK ERMAYANTI, I GUSTI LANANG OKA, I GEDE MAHARDIKA, PUTU SUYADNYA
      Pages: 7 - 12
      Abstract: ABSTRACT   Cod liver oil as a source PUFA (Polyunsaturated Fatty Acid) has very diverse and complex benefits, including for heart health. This study aimed to improve the lipid profile of male local rabbit which was fed commercial supplementation of cod liver oil. The experimental design used was Completely Randomized Design (RAL) with four feed treatments, ie commercial feed without supplementation of cod liver oil (P0) as control, commercial feed supplemented by cod liver oil 1.5% (P1), commercial feed supplemented by oil liver of 3% cod (P2) and commercial feed supplementation of cod liver oil 4.5% (P3).Each treatment consists of eight rabbits. The variables observed were total cholesterol, triglyceride, LDL, and HDL levels. The data obtained were analyzed with ANOVA and if significantly different were tested further with DMRT. The results showed that supplementation of cod liver oil with different levels in commercial feed showed significantly different results (P <0.05) on total cholesterol, triglyceride, LDL, and HDL levels of local rabbit. It can be concluded that supplementation of cod liver oil in commercial feed to the extent 4.5% capable repair the lipid profile of male local rabbit because it can decreased  total cholesterol levels, decrease triglycerides levels, decreased LDL levels, and increased HDL levels.
      PubDate: 2018-06-30
      Issue No: Vol. 22, No. 1 (2018)
       
  • BIODIVERSITY OF SCLERACTINIAN CORAL AND REEF FISH AT PAPUMA BEACH, JEMBER,
           EAST JAVA

    • Authors: OKTIYAS MUZAKY LUTHFI, RENDY VIDYA WIBISONO
      Pages: 13 - 24
      Abstract: ABSTRACT   Coral reef in Papuma was distributed in 3 to 20 m depth, with sand as main substrate. The coral reef was built from hard coral (scleractinian) and reef fishes. Papuma’s coral reef was interesting to be studied due to they can deal with the extreme environment such as high sand sedimentation, high wave, strong current, and anthropogenic risk. The purpose of this study was to descript distribution of hard coral and their fishes based on quantitative data in Papuma. We used Line Intercept Transect (LIT) method with 100 m long perpendicular with coast line to quantify of coral cover based on their life form. While reef fishes data was obtained using underwater visual census with 100 m long. All data was taken from 3 stasiun they were: station 1 (8°25'59.26"S 113°33'15.07"E), station 2 (8°26'0.93"S 113°33'17.53"E) and station 3 (8°26'2.02"S 113°33'20.06"E), in 3-12 m depth.  The result showed that coral reef in Papuma was dominated by branching coral (CB) from genus Montipora with coral cover 30%, while sand (SD) to be main substrate with 26.9% of coverage.  Montipora is one of genus famili Acroporidae that has faster growth than massive coral and strong branch as an adaptation strategy with strong current. In this research, we also found 137 of reef fishes that was 19% composed by indicator fish (Chaetodontidae). High number of indicator fish can represent of healthy coral reef. High coral cover coverage usually will be followed by increasing number of indicator fish. These fish were obligate corallivorous that consume coral polyp during their life. Coral reef in Papuma contained 10 types of life form and had coral cover about 39.9% in average. 
      PubDate: 2018-06-30
      Issue No: Vol. 22, No. 1 (2018)
       
  • PHYSICAL, CHEMICAL AND BIOLOGICAL POTENTIAL HAZARDS IDENTIFICATION OF
           SLAUGHTERHOUSE AND CHICKEN NUGGETS PRODUCTION PROCESS

    • Authors: Raynard c Sanito
      Pages: 25 - 34
      Abstract: ABSTRACT
      Chicken nuggets, the one of protein rich foods, is produced from the chicken meat through several stages of
      the process. This research aimed to identify the potential hazards of chicken nuggets process in final products
      based on physical, chemical and biological hazards perspectives. The hazardous potentials were performed
      specifically using observations, interviews and investigations in a slaughterhouse unit and production unit.
      Furthermore, the finding of data was described qualitatively. The results of this study indicated that there were
      several potential hazards in physical, chemical and biological in a chicken nugget process. The ear problems,
      exhausted of workers, watered by heat frying oil were the examples of potential hazards in physical. In addition,
      contamination of heavy metal in product and the expired of food grade oil were an illustration of chemical
      potential hazards. Then, microorganisms in end products, the source of the pathogen were the examples of
      biological hazards potential. Finally, it could be concluded that chicken nugget factory possessed the physical,
      chemical, and biological potential hazards.
      Key words: observations, interviews, findings, microorganisms.
      PubDate: 2018-06-30
      Issue No: Vol. 22, No. 1 (2018)
       
  • ECONOMICAL AND ECOLOGICAL FRIENDLY OF GROWTH MEDIA FOR EDIBLE MUSHROOM
           Pleurotus ostreatus MADE OF THE COCONUT WASTE

    • Authors: MARGARETTA CHRISTITA, ADY SURYAWAN
      Pages: 35 - 41
      Abstract: The abundance of coconut waste in North Sulawesi has not been processed and used optimally, then it becomes waste for the environment. Coconut coir processing for planting medium is limited only for coconut peat (coconut husk powder). One drawback in processing coconut peat requires special equipment and the fuel is expensive. This study aimed to compare the use coconut peat and coconut coir as growing medium for white oyster mushroom. Coconut coir was cut 3cm x 2cm x 1cm in size, while the comparison medium uses a coconut peat. Compositions of both media are coconut coir / coconut peat 83%, 16% ricebran, 1% limestone, 60% water.  The result showed that coconut coir more productive than coconut peat. Coconut coir media produces 120.62 grams while the coconut peat media weighing 116.11 grams on each harvesting. Based on the result it can be conclude the usage of coconut coir was better compare than coconut peat for cultivation of oyster mushroom.   Key words: Coconut waste, coconut coir, coconut peat, media, mushroom
      PubDate: 2018-06-30
      Issue No: Vol. 22, No. 1 (2018)
       
  • THE EFFECT OF DIFFERENT ALTITUDE TO THE POLLEN TYPES THAT TRIGONA
           COLLECTED

    • Authors: I PUTU NARKA EKA PRATAMA, NI LUH WATINIASIH, I KETUT GINANTRA
      Pages: 42 - 48
      Abstract: Trigona is a stingless bee, which has been found in tropical and sub-tropical regions.  Fifty species have been indentified in South East Asian region, but few studies have been conducted in Indonesia.  Plant species commonly differ in different altitudes, due to the climatic effect, therefore will affect the availability of food source for Trigona.  This study aimed to investigate the effect of different altitudes to the pollen types collected and used by Trigona as food resources and the distance of their foraging. Samples of Trigona were collected from 3 locations: Location I was in Mawang and Taro Villages at Gianyar Regency, Location II was in Tua Village at Tabanan Regency and Location III was in Ngis Village at Karangasem Regency. The altitudes of those three locations were 750.87 m, 493.007 m and 147.15 m above sea levels respectively. Pollen samples were processed using the acetolysis methods in the Plant Structure and Development Laboratory, Department of Biology, Udayana University and pollen identification was referred to the book of “Pollen Morphology and Plant Taxonomy” (Erdtman, 1972). The results showed that in some cases, the type pollen collected by Trigona differ in different altitude.  Pollen of Allamanda cathartica L was collected by the bee at Gianyar and Karangasem Regencies. Pollen of Capsicum frutescens L. and Euphorbia milii were collected by the bee at Tabanan and Karangasem Regency, while pollen Neomarica longifolia was found in bees in all three locations. The average distances of foraging of this Trigona bee was 147.15 m at Gianyar, 162.21 m at Tabanan and 53.61 m at Karangasem.  
      PubDate: 2018-06-30
      Issue No: Vol. 22, No. 1 (2018)
       
 
 
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