scholarly journals Giving Lemna Minor and Mud to the Growth of Tubifex sp.

Author(s):  
Mahendra Mahendra ◽  
Doni Damara ◽  
Mursidatun Nufus ◽  
Vira Riana Putri

This study aims to determine the effect of the use of a combination of lemna minor substrates and mud on the biomass of the population of Tubifex sp. This research is experimental, with a completely randomized design (CRD), with five levels of treatment P1 = 100% (lemna minor ) + 2,000 gr (mud), P2 = 75% (lemna minor ) + 2,000 gr (mud), P3 = 50 % (lemna minor ) + 2,000 gr (mud), P4 = 25% (lemna minor) + 2,000 gr (mud), P5 = 0% (lemna minor) + 2,000 gr (mud). Data obtained from research results in analysis of variance (ANOVA) and in further testing with the Smallest Significant Difference test. The main parameters observed were the number of population and biomass of Tubifex sp. The results of the study showed that the combination of Lemna minor substrate and mud significantly (p <0.05) on the growth of biomass and the population of Tubifex sp. The best results were found in the treatment with the treatment formulation P1 = 100% (lemna minor ) + 2,000 gr (mud) which produced a population of 6,250 ind / gr and biomass 8.60 gr / m2.

Pro Food ◽  
2020 ◽  
Vol 6 (2) ◽  
pp. 685
Author(s):  
Ni Made Neni Parmiutari ◽  
Eko Basuki ◽  
Rucitra Widyasari

ABSTRACT             This study aims to determine the chemical properties (moisture content, pH and total dissolved solid), physical properties (texture and color) and organoleptics (taste, color, aroma, texture) in the different formulation of slice jam from mixture straw jackfruit and pineapple. This study used a Completely Randomized Design (CRD) with 6 treatments and 3 time replications and analyzed using Analysis of Variance at the 5% level and followed by Least Significant Difference test at the 5% level. These treatments include P0 (100 % pineapple), P1 (80% pineapple: 20% straw jackfruit), P2 (65% pineapple: 35% straw jackfruit), P3 (50% pineapple: 50% straw jackfruit), P4 (35% pineapple: 65% straw jackfruit), dan P5 (20% pineapple: 80% straw jackfruit). Observations made on moisture content, pH, total dissolved solid, texture, color and organoleptic taste, color, texture and aroma (scoring and hedonic). The results showed that the P3 treatment (50% straw jackfruit: 50% pineapple) was the preferred treatment for the panelists on the parameters of color, taste, and texture with the characteristics of moisture content 23.35%, pH 4.86, total dissolved solids 32,46oBrix, L value 44.79 and Hue value 70.67o and brownish yellow color, slightly pineapple taste, chewy texture and pineapple aroma and slightly jackfruit aroma. Keywords: pineapple, slice jam, straw jackfruit ABSTRAK       Penelitian ini bertujuan untuk mengetahui sifat kimia (kadar air, pH dan total padatan terlarut), sifat fisik (tekstur dan warna) dan organoleptik (rasa, warna, aroma, tekstur) pada formulasi selai lembaran dari campuran dami nangka dan buah nanas yang berbeda. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) dengan 6 perlakuan dan 3 kali ulangan dan dianalisis menggunakan analisis keragaman (Analysis of Variance) pada taraf 5% dan dilanjutkan dengan uji Beda Nyata Terkecil pada taraf 5%. Perlakuan diantaranya P0 (100 % buah nanas), P1 (80% buah nanas: 20% dami nangka), P2 (65% buah nanas: 35% dami nangka), P3 (50% buah nanas: 50% dami nangka), P4 (35% buah nanas: 65% dami nangka), dan P5 (20% buah nanas: 80% dami nangka). Pengamatan dilakukan terhadap kadar air, pH, total padatan terlarut, tekstur, warna dan organoleptik rasa, warna, tekstur dan aroma (skoring dan hedonik). Hasil penelitian menunjukkan bahwa perlakuan P3 (50% dami nangka : 50% buah nanas) merupakan perlakuan yang agak disukai panelis pada parameter warna, rasa, dan tekstur dengan karakteristik kadar air 23,35%, pH 4,86, total padatan terlarut 32,46oBrix, nilai L 44,79 dan nilai Hue 70,67o serta warna kuning kecokelatan, agak berasa asam nanas, tekstur kenyal dan beraroma nanas dan sedikit beraroma nangka. Kata kunci: buah nanas, dami nangka, selai lembaran


Author(s):  
Cindy Yurike Aprilia, Liman, Muhtarudin dan Agung Kusuma Wijaya

This research aimed to investigate the effect of various scarification treatments on the germination of tree saga seeds (Adenanthera pavonina L.). This study used a completely randomized design (CRD) with 6 treatments and 3 replications. The treatments in this study were P0 (control), P1 (soaked using distilled water for 24 hours), P2 (soaked using hot water 60 °C for 15 minutes), P3 (sanded skin), P4 (soaked using 1% H2SO4 for 30 minutes), and P5 (soaked using goat urine for 30 minutes).  The data obtained were analyzed by Analysis of Variance and continued with the Least Significant Difference Test (LSD) level of 5%. The results showed that the treatment had a very significant effect (P <0.01) on germination rate. The best treatment that can increase the germination of a tree saga seeds (Adenanthera pavonina L.) was by eroding the seed skin using sandpaper. This treatment can produce an average germination of 78.89%, while the treatment that produce the highest abnormal seeds was found in the treatment by soaking using 1% H2SO4 for 30 minutes.  The treatment that produce normal seeds, dead seeds, and the highest fungus-stricken seeds were found in the treatment by eroding the seed skin using sandpaper. The treatment that produced the highest hard seed was control.   Keywords: Germination, Saga, Scarification.


EUGENIA ◽  
2019 ◽  
Vol 22 (3) ◽  
Author(s):  
J. M.J. Supit ◽  
Y. E.B. Kamagi ◽  
W. Kumolontang

ABSTRACT  Study on compost utilization to support organic strawberry production in Tomohon has been performed to promote the use of compost (mixture of chicken manure and rice husk) in organic strawberry and to determine the compost dosage producing highest strawberry yield. Completely randomized design (CRD) with 4 (four) replicates  has been performed to apply various compost levels, namely 60 t/ha (SPo), 60 t/ha (SP1), 120 t/ha (SP2), 180 t/ha (SP3), and 240 t/ha (SP4). Data analysis has been conducted by means of analysis of variance (ANOVA) followed by the Least Significant Difference Test.  The results revealed the significant yield differences among treatments.  The highest result (28 fruits/ pot having 174.64 gram weight) was found in SP3 compost level (180 t/ha).Key words: compost, agricultural land Rurukan Tomohon, strawberries


2019 ◽  
Vol 2 (2) ◽  
pp. 50-56
Author(s):  
Agus Hadi Prayitno ◽  
Budi Prasetyo ◽  
Anang Sutirtoadi ◽  
Ahmad Sa'Roni

This study was conducted to determine the effect of fermented tofu waste (ATF) as conventional feed on the cost of broiler duck production. 200 day old ducks (DOD) were maintained. The experimental design used a completely randomized design (CRD) consisting of 4 feed treatments. Each treatment consisted of 5 replications. Each replication consisted of 10 DOD. The research treatments were: P0 (100% BR1), P1 (90% BR1 and 10% ATF), P2 (80% BR1 and 20% ATF), and P3 (70% BR1 and 30% ATF). The parameters were production costs, income, and income over feed costs. The results were analyzed using analysis of variance (ANOVA). Different results continued using the Least Significant Difference test (LSD 1% and 5%). Giving ATF to level 30% in feed had an effect (P <0.05) on feed costs and was highly significant (P <0.01) on income over feed costs, but does not affect income. Giving ATF in feed up to level 30% as conventional feed can reduce production costs in maintaining of ducks. 


2019 ◽  
Vol 15 (2) ◽  
pp. 105-114
Author(s):  
GUSTI MARLINA ◽  
MARLINDA MARLINDA ◽  
HENI ROSNETI

The research objective was determine the effect of various growth media and growmore fertilizer on the acclimatization of Dendrobium orchids. study used a Completely Randomized Design (CRD) Factorial consisting of 2 factors, the first is (M) of growing media which consists of 3 levels, namely: M1 (medium fern root), M2 (wood charcoal medium), M3 (coir media coconut) and the second is (G) growmore fertilizer which consists of 4 levels, namely: G0 (without Growmore fertilizer), G1 (Growmore fertilizer 2 g / liter), G2 (fertilizer Growmore 4 g / liter), G3 (Growmore fertilizer 6 g / liter). Determine the growth of orchid plants, observations were made with the following parameters Growth Percentage (%), Plant Height (cm), Number of leaves (strands), and Number of tillers (stems). Data obtained were analyzed statistically, then continued with the Honestly Significant Difference Test (BNJ) at the level of 5%. The results showed that the single treatment of the use of growing media did not have a significant effect on the parameters of observation of growth percentage (%), plant height (cm), number of leaves (strands), and number of tillers (stems). The growth of growmore fertilizer also did not show a significant effect on the parameters of observation of growth percentage (%), plant height (cm), number of leaves (strands), and number of tillers (stems). Interaction of the use of various growth media and growmore fertilizer did not show a significant effect on the percentage of growth (%), plant height (cm), number of leaves (strands), and number of tillers (stems).


2021 ◽  
Vol 10 (2) ◽  
pp. 158-170
Author(s):  
Muhaeming Muhaeming ◽  
Jamilah Jamilah ◽  
Zulkarnaim Zulkarnaim

Penambahan nutrisi perlu dilakukan untuk meningkatkan produktivitas pertumbuhan jamur tiram putih (Pleurotus ostreatus). Salah satu bahan yang dapat digunakan adalah serbuk jagung. Penelitian ini bertujuan untuk mengetahui pengaruh penambahan serbuk jagung pada komposisi media tanam terhadap pertumbuhan miselium bibit F1 jamur tiram putih (Pleurotus ostreatus) dan mengetahui konsentrasi serbuk jagung yang paling baik digunakan pada pertumbuhan  miselium bibit F1 jamur tiram putih (Pleurotus ostreatus). Penelitian ini mengunakan Rancangan Acak Lengkap (RAL) 4 perlakuan dan 3 ulangan sehingga diperoleh 12 satuan percobaan; P0 (perlakuan kontrol), P1 (25%), P2 (50%), dan P3 (100%). Variabel yang diukur adalah persentase pertumbuhan miselium yang diamati pada hari ke-6, 12 dan 18 dan waktu penyebaran miselium Hari Setelah Inokulasi (HSI). Data hasil penelitian dianalisis menggunakan analysis of variance (ANOVA) dengan uji lanjut menggunakan uji Beda Nyata Terkecil (BNT). Hasil penelitian menunjukkan bahwa ada pengaruh pada pertumbuhan miselium bibit F1 jamur tiram putih (Pleurotus ostreatus) dengan penambahan serbuk jagung pada komposisi media tanam. Selain Itu, konsentrasi serbuk jagung yang memberikan hasil yang paling baik terhadap pertumbuhan miselium adalah P2 dengan konsentrasi 50%. Kata kunci : miselium F1; Pleurotus ostreatus; serbuk jagung  ABSTRACTAdditional nutrition needs to be done to increase the productivity of oyster mushroom (Pleurotus ostreatus) growth. One of the materials that can be used is corn powder. This study aimed to determine the effect of corn powder on the planting medium composition towards mycelium growth of oyster mushroom F1 seeds (Pleurotus ostreatus) and to find the best concentration of corn powder to grow mycelium seeds F1 oyster mushroom (Pleurotus ostreatus). This research was an experimental study using a Completely Randomized Design (CRD) with 4 treatments namely; P0 (control treatment), P1 (25%), P2 (50%), and P3 (100%), and 3 repetitions so that obtained 12 experimental units. The variables measured were the mycelium growth percentage on days 6, 12, and 18, and the mycelium widespread time after the day of inoculation. The data were analyzed using ANOVA then continued on the Least Significant Difference (LSD) test. The results showed that the addition of corn powder on oyster mushroom growing media affected mycelium growth of the oyster mushroom F1 seeds (Pleurotus ostreatus). It also found that the P2 with a 50% concentration of corn powder gave the widest mycelium growth.  Keywords: corn powder; mycelium; Pleurotus ostreatus


2015 ◽  
Vol 2 (3) ◽  
pp. 17
Author(s):  
Indrayani Indrayani ◽  
Harapin Hafid ◽  
Dian Agustina

ABSTRACTThis study aims to determine the digestibility of dry matter and organic matter level waste silage mixed vegetables and Gliricidia leaves were tested in vitro. This study used a completely randomized design with 3 treatments and 3 replications. Each of these treatments is R0 (Gliricidia leaves 100%), R1 (Gliricidia leaves 70% + 30% silage vegetable waste), and R2 (Gliricidia leaves 40% + 60% silage vegetable waste). Data were analyzed using analysis of variance (ANOVA) and further testing using the test Honestly Significant Difference (HSD). The results of ANOVA showed that the mixture of vegetable waste silage was highly significant (p <0.05) on dry matter digestibility and significantly (p <0.05) on the digestibility of organic matter. It can be concluded that the mixed of vegetable waste silage and Gliricidia leaves can improved digestibility of dry matter and organic matter, treatment of 40% and 60% Gliricidia leaves plus waste vegetable produce silage dry matter digestibility and percentage of organic matter is best (72,24% and 68,19%).Keyword: Silage vegetable waste, gliricidia leaves, dry and organic matter digestibilityABSTRAKPenelitian ini bertujuan untuk mengetahui kecenaan bahan kering dan bahan organik tingkat campuran silase sampah sayur dan daun gamal yang diuji secara in vitro. Penelitian ini menggunakan Rancangan Acak Lengkap dengan 3 perlakuan dan 3 ulangan. Masing-masing perlakuan tersebut ialah R0 (daun gamal 100%), R1 (daun gamal 70% + silase sampah sayur 30%), dan R2 (daun gamal 40% + silase sampah sayur 60%). Data yang diperoleh dianalisis dengan menggunakan analisis sidik ragam (ANOVA) dan uji lanjut menggunakan uji Beda Nyata Jujur (BNJ). Hasil analisis sidik ragam menunjukkan bahwa campuran silase sampah sayur berpengaruh sangat nyata (p<0,05) terhadap kecernaan bahan kering dan berpengaruh nyata (p<0,05) terhadap kecernaan bahan organik. Dapat disimpulkan bahwa perlakuan campuran silase sampah sayur dan daun gamal dapat meningkatkan kecernaan bahan kering dan bahan organik, perlakuan 40% daun gamal dan 60% silase sampah sayur menghasilkan persentase kecernaan bahan kering dan bahan organik yang terbaik yaitu (72,24% dan 68,19%).Kata kunci : Silase sampah sayur, daun gamal, kecernaan bahan kering, dan bahan organik.


2021 ◽  
Vol 8 (1) ◽  
pp. 19-28
Author(s):  
Heri Kusnayadi ◽  
Indra Wira Pratama ◽  
Ikhlas Suhada ◽  
Nila Wijayanti

The cultivation of consumption mushrooms in Indonesia is showing an encouraging development. Currently, Indonesia is included as one of the world's major mushroom suppliers. Mushrooms are a source of vegetable protein that does not contain cholesterol and can prevent high blood pressure, heart disease, diabetes, and can reduce body weight. The research objective was to determine the effect of composting time on planting media on the growth and yield of white oyster mushrooms. The research was conducted in the Mapin Kebak Village, sub-district Alas Barat star from May to June 2020. The research was conducted using an experimental method and using a completely randomized design consisting of 5 treatments, where each treatment consisted of three replications. The research treatments consisted of M1 = composting for 6 hours; M2 = composting for 12 hours; M3 = composting for 24 hours; M4 = composting for 36 hours and M5 = composting for 48 hours. Furthermore, the data from the observations were analyzed by ANOVA at the real level of 5%. If the results of the data analysis show a significant difference, then a further test is carried out using the Least Significant Difference Test at the 5% real level. The results of the analysis showed that the fastest time to spread mycelium was in the M5 treatment, the composting time was 48 hours. The fastest primordia emergence time was 24 hours composting M3 treatment. The heaviest fruit weight was in treatment M3 and the lowest fruit weight was in treatment M1.


2021 ◽  
Vol 1 (1) ◽  
pp. 23-28
Author(s):  
Yuni Mariani ◽  
M Ayatullah Hamzani

This study was intended to determine the best temperature for hatching free-range chicken eggs in the incubator so that breeders could get more day-old chicken (DOC) with the same diversity. The research design used a completely randomized design (CRD). This study used 150 free-range chicken eggs obtained from breeders in Gunung Paok Hamlet, Perian Village, Montong Gading District, East Lombok Regency, which were divided into three treatments, namely 35 ° C - 36 ° C, 37 ° C - 38 ° C and 39. ° C - 40 ° C and five repetitions with the number of eggs repeating using 10 free-range chicken eggs. The variables observed were fertility, mortality, and hatchability of native chicken eggs. Data analysis was performed using Analysis of Variance (ANOVA). The results of the analysis of variance showed that differences in the temperature of native chicken eggs in the incubator showed a significant difference (P> 0.05) in fertility, mortality, and hatchability. The best results were obtained at an incubation temperature of 37 ° C - 38 ° C with an average hatchability of 82,88± 8,87%.


2016 ◽  
Vol 8 (1) ◽  
Author(s):  
Rosmaidar R

The purpose of this study was to determine the effect of immersion time on African catfish (Clarias gariepinus) larvae in natural methyl testosterone hormone on masculinization. This study was conducted in Center of Fish Culture Lamnyong, Banda Aceh. Experimental animals used in this study were 270 African catfish larvae aged 10 days. The study was designed using completely randomized design (CRD) with 3 treatments and 3 replications. African catfish larvae aged 10 days in group P1, P2, and P3 were immersed in natural methyl testosterone hormone for 10 hours, 20 hours, and 30 hours, respectively. Observations were carried out until fish reach 50 days old. Data were analyzed by analysis of variance (Anova) followed by least significant difference test (LSD). Percentage of male catfish observed in P1, P2, and P3 were 64.24 %, 93.11%, dan 59.94% respectively. As a conclusion, immersion with natural methyl testosterone hormone can change the sex of catfish to be male. ____________________________________________________________________________________________________________________ Key words: african catfish, methyl testosterone natural, masculinization


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