scholarly journals Growth of Favia and Favites Coral Transplants Based on Polyps Number (Pertumbuhan Karang Transplan Genus Favia dan Favites Berdasarkan Jumlah Polip)

2015 ◽  
Vol 20 (1) ◽  
pp. 23
Author(s):  
Diah Permata Wijayanti ◽  
Elis Indrayanti ◽  
Wandi Febrian Asri ◽  
Ambariyanto Ambariyanto

Budidaya karang melalui teknik transplantasi merupakan salah satu cara untuk menyelamatkan keberadaan karang terumbu di alam. Selain untuk diperdagangkan, karang hasil transplantasi juga dapat ditanam untuk memperbaiki terumbu karang yang rusak. Penelitian ini menggunakan ukuran dan bentuk polip Favia dan Favites sebagai dasar penentuan ukuran benih untuk mengurangi kerusakan koloni donor. Penelitian bertujuan untuk mengetahui pertumbuhan transplan Favia dan Favites. Penelitian dilakukan secara eksperimental dengan rancangan acak lengkap. Dua ukuran polip dipilih mewakili ukuran benih kecil dan besar, yaitu 2 cm dan 4 cm. Penanaman karang transplan dilakukan di Teluk Awur selama bulan April hingga November. Pengamatan dilakukan tiap 2 minggu sekali. Analisa data menggunakan ANCOVA. Analisa statistik menunjukkan pertumbuhan kedua ukuran transplan tidak berbeda nyata (P>0,05). Pertumbuhan transplan Favia dan Favites ditandai dengan munculnya tunas intratentakular. Pertumbuhan transplan tertinggi dicapai transplan Favites ukuran 4 cm dengan kecepatan tumbuh 0.596 cm2.bulan-1, sedangkan pertumbuhan terendah ditunjukkan oleh transplan Favites ukuran 2 cm dengan pertumbuhan 0.463 cm2.bulan-1. Kata kunci: pertumbuhan karang, transplantasi, Favia, Favites, jumlah polip Cultivation coral by using transplantation method is one attempt to alleviatecorals collection in nature. In addition to be traded, the corals can be transplanted to repair damaged coral reefs. This study utilized size and polyps form of coral Favia and Favites to be transplanted to minimize damage of coral donors. The purpose of this study was to investigate the growth of Favia and Favites transplants. The research was carried out by experimental method using a completely randomized design. Two different size of polyps i.e 2 polypsrepresented small size and 4 polyps represented large size were applied for each coral species. Research was conducted from April–November at Teluk Awur Bay, Jepara. The samples were observed every two weeks. Collected data wereanalyzed by repeated measurement ANCOVA. Statistical analysis showed that the growth of transplants did not show significant differences (P>0.05) between each genus and between 2 and 4 polyps. The growth of transplants have shown by extratentacular budding on Favia and intratentacular budding on Favites. The highest growth rate of transplants was shown by 4 polyps of Favites at 0.596 cm2.mo-1 and the lowest by 2 polyps of Favites at 0.463 cm2.mo-1,respectively. Keywords: Coral Growth, Transplantation, Favia, Favites, Number of Polyps 

2018 ◽  
Vol 1 (1) ◽  
pp. 51
Author(s):  
Sri Yuningsih Noor ◽  
Rano Pakaya

The purpose of this study was to determine the effect of the addition of probiotic EM4 (Evective Microorganism-4) in feed to growth and gouramy ointment (Osprhronemus gouramy) at the Freshwater Fish Seed Development Center in Gorontalo Province. The method of this research is experimental method and data processing using completely Randomized Design with 4 treatments 3 replicates. The treatment is done with different doses which in treatment A (Without Probiotic), B ( probiotic 1 cc), C (probiotic 2 cc), D (probiotic 3 cc). The parameters observed were growth rate, Feed Conversion (KP). Feed Efficiency (EP), and Absolute Length (PM). The data were tested continued using the LSD test (Least Significance Different). The results showed that the effect of giving EM4 probiotic with different dose to the growth rate of gouramy fish (Osprhronemus gouramy) gave a very real effect, and from the four research results it was found that treatment D with 3 cc dose was the highest value, followed by C 2 treatment cc, treatment B with a dose of 1 cc and the lowest is in treatment A (Control). Keywords : Probiotic EM-4, gouramy (Osprhronemus gouramy), Growth.    


2019 ◽  
Vol 6 (1) ◽  
pp. 49
Author(s):  
Muhammad Arief, Nur Fitriani, Sri Subekti

Abstract Freshwater culture commodity such as sangkuriang catfish (Clarias sp.) has high sufficient demand. One way to fullfil necessity of sangkuriang catfis demand is accelerate the growth. The aim of this research is to determine the present effect of different probiotics on commercial feed towards growth and feed efficiency of sangkuriang catfish. The research using experimental method, using Completely Randomized Design (CRD). Sangkuriang catfish kept in 30 days with four treatments and five replications, that is P1 (control), P2 (5% probiotics A), P3 (5% probiotics B), and P4 (5% probiotics C). The obtained data were processed by Analysis of Variance (ANOVA) and followed by Duncan Multiple Range Test if there was significant data. The result showed that different probiotics giving significant effect to growth rate and feed efficiency (p<0,05). The best sangkuriang catfish (Clarias sp.) growth rate is P2 treatment 2,88% ± 0,38, and the lowest is P1 treatment at 1,73% ± 0,7. The best feed efficiency is P2 treatment at 54,69% ± 9,67 and the lowest is P1 treatment at 30,27% ± 12,65


2016 ◽  
Vol 10 (2) ◽  
pp. 6
Author(s):  
Anang Widigdyo

Rapid growth rate in broilers is always followed by a rapid fatty liver, in which fat storage tends to increase with increasing body weight. The rapid growth in broilers that are often followed by a fatty is higher, it becomes a problem for consumers who want a chicken with a low fatty. The purpose of this study was to determine the effect of adding the juice of betel leaves to body weight of broiler chickens. This research was conducted in 9 March to 6 April 2014 for 28 days at Hamlet Village Kedungrejo Salamrejo Binangun District of Blitar. This research used an experimental method that uses a completely randomized design (CRD) using 4 treatments with 5 replicates, each replicate consisting 5 Broiler. The Results showed the treatment had no significant effect (P = 0.05) on body weight. Based on statistical calculations did not show any differences. The absence of significant differences is due to the weight of the chicken that uniform between treatments and content of feed used primarily energy and protein in the diet is almost the same.Keyword : Betlle Leaf Juice, Broiler Again, FCR


2016 ◽  
Vol 10 (2) ◽  
pp. 6
Author(s):  
Anang Widigdyo

Rapid growth rate in broilers is always followed by a rapid fatty liver, in which fat storage tends to increase with increasing body weight. The rapid growth in broilers that are often followed by a fatty is higher, it becomes a problem for consumers who want a chicken with a low fatty. The purpose of this study was to determine the effect of adding the juice of betel leaves to body weight of broiler chickens. This research was conducted in 9 March to 6  April 2014 for 28 days at Hamlet Village Kedungrejo Salamrejo Binangun District of Blitar. This research  used an experimental method that uses a completely randomized design (CRD) using 4 treatments with 5 replicates, each replicate consisting 5 Broiler. The Results showed the treatment had no significant effect (P = 0.05) on body weight. Based on statistical calculations did not show any differences. The absence of significant differences is due to the weight of the chicken that uniform between treatments and content of feed used primarily energy and protein in the diet is almost the same.Keyword : Betlle Leaf Juice, Broiler Again, FCR


2018 ◽  
Vol 53 (10) ◽  
pp. 1109-1118
Author(s):  
Reginaldo Antonio Medeiros ◽  
Haroldo Nogueira de Paiva ◽  
Flávio Siqueira D’Ávila ◽  
Helio Garcia Leite

Abstract: The objective of this work was to evaluate the growth and yield of teak (Tectona grandis) stands at different spacing and in different soil classes. Twelve spacing were evaluated in an Inceptisol and Oxisol, in plots with an area of 1,505 or 1,548 m2, arranged in a completely randomized design with nine replicates. The teak trees were measured at 26, 42, 50, and 78 months of age. Total tree height was less affected by spacing. Mean square diameter was greater in wider spacing, whereas basal area and total volume with bark were greater in closer spacing. An increase in volume with bark per tree was observed with the increase of useful area per plant. For teak trees, growth stagnation happens earlier, the growth rate is higher in closer spacing, and the plants grow more in the Inceptisol than in the Oxisol.


2016 ◽  
Vol 16 (1) ◽  
Author(s):  
Muhammad Masyarul Rusdani, Sadikin Amir Saptono Waspodo dan Zaenal Abidin

ABSTRAKPenelitian ini bertujuan untuk menguji kinerja bakteri probiotik Bacillus spp. dan prebiotik molase dengan dosis berbeda terhadap tingkat kelangsungan hidup dan kinerja pertumbuhan ikan nila (Oreochromis niloticus). Penelitian ini menggunakan motede eksperimen dengan rancangan acak lengkap (RAL) dan melibatkan 5 perlakuan, yaitu kontrol (K), Bacillus spp. 10 ml/kg pakan (A); Bacillus spp. 10 ml/Kg pakan + molase 10 v/v (B); Bacillus spp. 20 ml/Kg pakan (C); dan Bacillus spp. 20 ml/Kg pakan + molase 10 v/v(D). Hasil yang diperoleh menunjukkan variasi untuk total bakteri, yaitu dari 2,24x108 hingga 3,78x108 CFU/ml. Demikian juga dengan total Bacillus spp. dari 1,07x106 hingga 2,02x107 CFU/ml. Adapun untuk pengamatan tingkat kelangsungan hidup dan laju pertumbuhan tidak menunjukkan hasil yang signifikan. Meski demikian, perlakuan D memiliki hasil yang relatif lebih baik dengan nilai SR dan LPH berturut-turut 96,67% dan 1,01 %/hari. Kata kunci : probiotik Bacillus spp., prebiotik molase,  total bakteri dan Bacillus spp., tingkat kelangsungan hidup, laju pertumbuhan harian  ABSTRACTThis study was aimed to determine the good combination of probiotic bacillus spp. and prebiotic molasses with different doses to survival rate and growth performance of tilapia (Oreochromis niloticus). this study has used experimental design with completely randomized design (CRD) and five treatment, i.e. Control (K), without probiotic and prebiotic; Bacillus spp. 10 ml/kg feed (A); Bacillus spp. 10 ml/Kg feed + molasses 10 v/v (B); Bacillus spp. 20 ml/Kg feed (C); dan Bacillus spp. 20 ml/Kg feed + molasses 10 v/v (D). The results showed variation for total bacteria and total Bacillus spp. The average of total bacteria obtained in this study ranged from 2,24x108 to 3.78x108 CFU/ml. Likewise, the total Bacillus spp. were obtained from 1.07x106 to 2.02x107 CFU/ml. While for survival rate (SR) and the growth rate (DGR) did not showed significant results. However, treatment D has a relatively better then treatment else with SR and DGR respectively 96.67% and 1.01%.day-1. Keywords : probiotic Bacillus spp., prebiotic molasses, total bacteria and Bacillus spp., survival rate, specific growth rate.


2019 ◽  
Vol 10 (1) ◽  
pp. 24-30
Author(s):  
Ion Tarsardo Sianturi ◽  
Arief Prajitno ◽  
Ellana Sanoesi

Diseases is a problem in aquaculture, one of which is the diseases caused by the bacteriumP.fluorescens. Antibiotics and chemicals materials themselves can give the bacterium resistance and cause harm for the environment. One alternative that can be done is using a natural material, namely the rod of ciplukan (p. angulata). The purpose of this research was to explain the effect of P. angulata on the growth of p. fluorescens. The method which can be use is experimental method by using the research design of completely randomized design (ral) with 5 treatment and 2 control with 3 repetitions. The results showed that extract of P. angulata at various dose (6,67 ppt, 13,33 ppt, 19,99 ppt, 26,66 ppt and 33,33 ppt) exhibited anti-P. fluorescens activity with inhibition zone diameters in the range of (4,06±0,07 mm - 9,63±1,61 mm). Increashing extract dose lead to increased the inhibition zone. The extract dose of 33,33 ppt exhibited best anti-P. fluorescens activity in this research. The research results show that P. angulata is proven to be able to inhibit the P. fluorescens, but to prove the effectiveness of this material, an in vivo is required.


2003 ◽  
Vol 5 (2) ◽  
pp. 11
Author(s):  
Rustidja Rustidja

The aim of study was to know the effect of sludge in the ration on the gonadal growth of Oreochromis sp. broodstock. Experimental design used in this experiment was completely Randomized Design. The broodstocks were fed with the ration containing 0-40% of sludge, or with a commercial fish feed as a control.The results were not significantly differences between the treatment in all parameters. The sludge in ration ranging from 0 to 40% resulted the level of gonadal maturation of 4, 6, 7, dan 9. The value of Gonadal Maturation Index on 0,96 to 3,98 % and the control group on 1,75 %. The specific growth rate of broodstock fed with the ration ranged from 1,1 to 1,62 Bw/day and that of the development of gonadal control group was 1,97. The survival rate were variated between 14,29 to 100% and that of the development of gonadal control group is 71,43%. The ration containing 40% sludge is the most suitable feed for maturation in Oreochromis.


2020 ◽  
Vol 7 (1) ◽  
pp. 1-7
Author(s):  
Muhammad Agung Permadi ◽  
Rafiqah Amanda Lubis ◽  
Syawaludin Syawaludin ◽  
Nova Suryani Pasaribu

Spodoptera exigua is a migrant pest that attacks onions simultaneously in groups. The utilization of papaya leaves to control pests due to papaya leaves have toxic compounds that can kill pests. This study aims to measure the ability of papaya leaves to control S. exigua larvae. This research was conducted using a completely randomized design (CRD) experimental method with two treatment factors. The first factor was papaya leaf concentration (0 g / l, 30 g / l, 70 g / l, 100 g / l, 120 g / l), and the second factor is a mixture of kerosene. The treatment was repeated three times. The study was conducted at the Agrotechnology Laboratory, Agriculture Faculty Muhammadiyah University, South Tapanuli. The results showed that papaya leaves could kill S. exigua larvae. The highest mortality of S. exigua worms There were statistically significant non-treatments among treatments.


2018 ◽  
Vol 6 (2) ◽  
pp. 129-140
Author(s):  
Yesica Manullang ◽  
Limin Santoso ◽  
Tarsim .

ABSTRACTThe research was conducted at the Aquaculture Laboratory, University of Lampung in May to July,  2018. The aim of this study is to determine the effect of substitution of fish meal with catfish head flour on the growth of catfish, and head flour dosage the best for catfish growth. The study used a Completely Randomized Design with 3 treatments and 3 replications A (100% fish meal), B (70% fish meal and 30% catfish flour), and C (40% fish meal and 60% catfish flour). Parameters observed included absolute growth, daily growth rate, protein retention, feed convertion ratio (FCR), survival rate (SR), and supporting parameters that is feed cost and water quality. The data obtained were analyzed by variance and continued with smallest real difference test with a 95% confidence level. The results showed that the proportion of catfish head flour in artificial feed had an effect on absolute weight growth and daily growth rate (P, 0.001). The proportion of the use of 30% starch in the feed of catfish has a real influence on absolute growth (40.25 ± 5.67 g), and daily growth rate (0.67 ± 0.09 g/day).Keywords : Catfish, catfish head waste, substitution, feed, growth


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