scholarly journals The effect of liquid organic plant supplements on aquaponic culture of red cabbage (Brassica oleraceae L. var. Capitata f. rubra DC.) and tilapia (Oreochromis niloticus L.)

2021 ◽  
Vol 912 (1) ◽  
pp. 012102
Author(s):  
Elimasni ◽  
N Nasution

Abstract Abstrak. Aquaponic cultivation is an innovation in the fulfillment of fish and vegetable food needs. The types of fish and vegetables that have not been widely cultivated in aquaponics are tilapia and red cabbage. The aims of this experiment is to provides information on the best concentration of plant liquid organic suplements for the maintenance of red cabbage and tilapia in this aquaponic system. These are commodity have a variety of advantages and high production so it is necessary to conduct an aquaponic assessment of tilapia and red cabbage using liquid organic supplements of plants. This research was conducted gradually, namely the preparation of red cabbage seeds and fish seeds, fermentation of water, acclimatition of fish and research treatment. The research design uses a completely randomized design with four treatments and five replays. The treatment used by giving of liquid organic supplement concentrations merk SOC plants that differ in the integrated aquaponic tarpaulin pond system is treatment1 (0 ml/l), treatment2 (2.5 ml/l), treatment3 (5 ml/l) and treatment4 (7.5 ml/l) with each pond as much as 25 fish/pond. Aquaponic watering technique using DFT (Deep Flow Technique). Variables of red cabbage include the morphometry of the red cabbage plant (height of the plant, number of leaves, and wet weight). Tilapia variables include relative growth rate and fish survival rate. The results showed that the treatment of the concentration of liquid organic supplements of plants had a noticeable effect on the height of the plant, the number of leaves and the wet weight. Data of tilapia research with aquaponic system using tepal ponds include the relative growth rate of tilapia ranging from 2.84 - 3.90%/day and tilapia survival ranges from 88-92%.

1993 ◽  
Vol 50 (2) ◽  
pp. 435-442 ◽  
Author(s):  
Daniel D. Heath ◽  
Nicholas J. Bernier ◽  
John W. Heath ◽  
George K. Iwama

Eight full- and half-sib families of chinook salmon (Oncorhynchus tshawytscha) were held during egg development at two temperatures (8.0 and 10.2 °C). As fry, these families were measured for relative growth rate, initial and final wet weight, hematocrit values before and 2 h after a 30-s handling stress, and plasma cortisol and glucose concentrations before and after stress. Significant sire effects were found for all measured traits, and significant dam effects were found for all traits except for the poststress increases in cortisol concentrations. There were significant genotype-by-environment interactions for all traits except unstressed (control) plasma glucose concentrations. Incubation temperature had a significant effect on relative growth rate and final wet weight only. We found a significant correlation between poststress plasma glucose concentration and relative growth rate for all fish, independent of family, while resting plasma cortisol concentration and poststress hematocrit correlated with wet weight only when analyzed within the eight individual families. Genetic contributions to stress-related parameters and genotype-by-environment interactions should be considered as a factor in stress-related research with fish.


2020 ◽  
Vol 34 (3) ◽  
pp. 275-286
Author(s):  
Yurnie Sari Alphiani ◽  
Zulkifli ◽  
Sulhaswardi

ABSTRACT The purpose of this study is to determine the effect of interaction and the main influence of vermicompost and NPK Pearl 16:16:16 on the growth and yield of celery plants. This research was carried out for four months, from August to November 2018. This research used a factorial completely randomized design (RAL) consisting of two factors, where the first factor was vermicompost fertilizer (K) consisting of 4 levels, namely 0, 60, 80, 100 g / polybag and the second factor is NPK Pearl 16:16:16 (N) fertilizer consisting of 4 levels, 0, 0.8, 1.6, 2.4 g/polybag. The observation parameters in this study were plant height (cm), relative growth rate (g), root volume (cm3), number of tillers, number of midribs, wet weight of crop (g), and age of harvest (days). The last observation data were statistically analyzed and continued with a BNJ follow-up test at the 5% level. The results showed that the interaction between vermicompost and NPK Pearl 16:16:16 fertilizer significantly affected plant height from week two to week seven, the relative growth rate in the first week, root volume, number of tillers, number of fronds and wet weight per plant. The best treatment is K3N3 (K3 vermicompost fertilizer = 100 g /polybag and NPK Pearl 16:16:16 N3 = 2,4 g/polybag), but it has no significant effect on the age of harvest and the main effect of vermicompost and NPK Pearl 16:16: 16 significantly affected plant height, relative growth rate, root volume, number of tillers, number of midribs and wet weight of the crop, with the best treatment being K3 (vermicompost fertilizer 100 g/polybag) and N3 (NPK Pearl 16:16:16 2,4 g/polybag). Keywords: Celery, Vermicompost, NPK pearl 16:16:16


2019 ◽  
Vol 21 (2) ◽  
pp. 85
Author(s):  
Nurbety Tarigan ◽  
Firat Meiyasa

The aim of this study was to examine the effectiveness of the commercial bacterial probiotic addition in feed on growth and survival rate of common carp. This research was conducted from July to September 2018. This study used a completely randomized design (CRD) with four treatments and three replications. The initial body length of juveniles was 5-6 cm with density 1 juvenile/litersfor 42 days. In this research, we used different dosages of commercial probiotics 0, 5, 10 and 15 ml/kg. The results showed that the administration of those probiotics in the feed had a significant effect on the relative growth rate, survival rate, efficiency of feed utilization, and protein efficiency ratio on carp juvenile. Administration of probiotics at 15 ml/kg is the best treatment for a relative growth rate 2.96%, survival rate 100%, efficiency of food utilization 72.07%, and protein efficiency ratio 12.19%. In conclusions, probiotics mixed in feed are able to increase the digestibility of feed so that it supports the growth and survival rate of common carp.


2020 ◽  
Vol 28 (1) ◽  
pp. 116
Author(s):  
Robert G. Marpaung ◽  
Boy Pasaribu

This study aims at determing the response of growth and production of peleng vegetables to the application of liquid organic fertilizer in various mulch. The study was conducted on land located in Simalingkar A Medan with a height of ± 32 m above sea level, began from May to August 2017. The research method used a factorial randomized block design with 2 factors. The first factor is the dose of NASA liquid organic fertilizer (P) which consists of 3 levels of treatment, namely: P0 = control, P1 = 3 ml / l water and P2 = 6 ml / l water. The second factor is the provision of mulch (M) which consists of three types, namely: M0: without mulching, M1: rice straw mulch and M2: black silver plastic mulch (MPHP). The results showed that the treatment of NASA liquid organic fertilizer up to 6 ml / l water significantly increased plant height, number of leaves, fresh weight of plants per sample, fresh weight of plants per plot, dry weight of plants per sample and dry weight of plants per plot, but differed not markedly on the relative growth rate of plants. The treatment of organic mulch and black silver mulch significantly increased plant height, number of leaves, fresh weight of plants per sample, fresh weight of plants per plot, dry weight of plants per sample and dry weight of plants per plot, but not significantly different to the relative growth rate of plants. The interaction between NASA's liquid organic fertilizer treatment and mulch administration had no significant effect on plant height, number of leaves, plant fresh weight per sample, plant fresh weight per plot, plant dry weight per sample, plant dry weight per plot and relative plant growth rate


2016 ◽  
Vol 12 (30) ◽  
pp. 55
Author(s):  
Luis L. Travieso ◽  
Adrian P. Leon ◽  
Veronica R. Logegaray ◽  
Diana Frezza ◽  
Angel Chiesa

Horticultural crops have a strong impact on human nutrition. Lettuce is the most important leafy vegetable in Argentina and it is cultivated mainly in green belts, in greenhouses or open field. The aim of this study was to evaluate growth and phytonutrients concentration of leaf lettuce under greenhouse and field production. Crop establishment was made from seedlings produced in a commercial greenhouse. Loose lettuce cv. Brisa was used for field and greenhouse growth. Experimental design with complete random block with 4 replicates per treatment was used. Fresh and dry weights of shoot, number of leaves, color, ascorbic acid, chlorophyll content were measured. Absolute and relative growth rate and commercial yield were calculated. Lettuce grown under greenhouse system showed, as expected, a higher value of fresh and dry weight, number of leaves, leaf area, yield and absolute and relative growth rate. Ascorbic acid value of the leaves decreased during lettuce growth in both production systems. Chlorophyll content was higher in the greenhouse cultivation but the antioxidant capacity was lower in lettuce leaves from greenhouse than the leaves grown on open field.


2014 ◽  
Vol 10 (2) ◽  
Author(s):  
Ari Widodo ◽  
Muhammad Isa ◽  
Teuku Armansyah TR

This study was aimed to determine the effect of relative growth rate and proximate levels of protein in tilapia fish exposed to heat stress and supplemented with the combination of willow leaf powder and chromium. A total of 30 tilapia fish with 1.3-1.5 cm long were divided into 6 treatment groups with 5 repetitions: fed with commercial feed at temperature 29±1° C (P1S1), fed with commercial feed combined with willow leaf at temperature 29±1° C (P2S1), fed with commercial feed combined with willow leaf and chromium at temperature 29±1° C (P3S1), fed with commercial feed at temperature 35±1° C (P1S2), fed with commercial feed combined with willow leaf at temperature 35±1° C (P2S2), fed with commercial feed combined with willow leaf and chromium at temperature 35±1° C (P3S2). The treatments were carried out for 15 days. Then, relative growth rate and proximate levels of proteins were calculated using Kjedahl methods. The results showed that there was an increase of the mean of relative growth rate and proximate levels of protein. Based on statistical test using factorial completely randomized design it was showed that there was a significant effect (P0.01) on the interaction of feeding and temperature with the relative growth rate, but did not affect the relative growth rate of tilapia fish. The proximate level of tilapia fish protein was affected very significantly (P0.01) by the food and the interaction between food and temperature as well, while the temperature treatment gave no significant effect on the proximate level of tilapia fish protein. In conclusion, the commercial feed combined with willow leaf and chromium can increase the relative growth rate and the proximate level of protein of tilapia fish exposed to heat stress.Key words: relative growth rate, proximate protein, willow leaf, chromium, tilapia fish


Author(s):  
Priyo Susatyo ◽  
Sugiharto Sugiharto ◽  
Hana Hana ◽  
Titi Chasanah

<p>Aquaculture can be improved by a diversified approach in the form of domestication research  of a wild fish. The research has been done by cultivating Javaen Barb/Brek  (<em>Puntius orphoides</em>) from Serayu river, Banyumas at a natural pond and laboratory scale. Brek fish is relative slow in growth and development of gonad. This research is aimed to determine: (1) the rate of general growth of Brek in the provision of some kinds of additional food; (2) Relative Growth Rate (RGR); (3) Specific Growth Rate (SGR) and Feed Conversion (FC). The research used experimental methods. The method was a completely randomized design (CRD) of 4 treatments and 3 replicationsof: A = 100% pellet; B = 70% soybean sprout and 30% pellet; C = 70% <em>Ipomoea aquatica </em>leaf and 30% pellet; D = 35% soybean sprouts, 35% <em>I. aquatica </em>leaf and 30% pellet. Quantitative data were analysed by analysis of variance (ANOVA) of the fishes growth.The results show influence of feed types to the Relative Growth Rate (RGR) of Javaean Barb. The best RGR with the value of 72.40 was given by feed types in the D combination. Meanwhile, Specific Growth Rate (SGR) and Feed Conversion (FC) were not affected  by the feed types. The study were expected to provide suggestions for efficient feeding techniques in attempts at domestication of wild fish.</p><p><strong>How to Cite</strong></p><p>Susatyo, P., Sugiharto, S., Hana, H., &amp; Chasanah, T. (2016). Effects of Some Feed Suplements Types to The Growth of Javaen Barb/Brek Fish (Puntius orphoides) Second Filial As Domestication Product. <em>Biosaintifika: Journal of Biology &amp; Biology Education</em>, 8(3), 278-285. </p>


2019 ◽  
Vol 12 (1) ◽  
pp. 89-95
Author(s):  
Hartina Hartina ◽  
Ratna Kusuma ◽  
Dwi Susanto

AbstrakPenyemaian laban dengan menggunakan metode ekstraksi biji belum banyak dilakukan dan perlu penambahan bahan pembenah tanah untuk meningkatkan pertumbuhan semai. Penelitian ini bertujuan untuk mengetahui pengaruh ekstraksi biji dan kombinasi media tanam terhadap penyemaian laban (Vitex pinnata L. Kuntze). Penelitian ini menggunakan rancangan acak lengkap dengan 2 faktor perlakuan yaitu ekstraksi biji (A0= ekstraksi basah dan A1= ekstraksi kering) dan kombinasi media tanam (M0= Tanah, M1= tanah + pasir, M2= tanah + kompos, M3= tanah + cocopeat), masing-masing diulang sebanyak 3 kali. Data yang diperoleh dianalisis dengan menggunakan uji varian (ANOVA) dengan taraf kepercayaan 95%, uji lanjut menggunakan uji Duncan pada taraf kepercayaan 95%. Hasil penelitian menunjukkan pada perlakuan ekstraksi biji kering dapat meningkatkan rata-rata persentase berkecambah sebesar 65,83% dan kecepatan tumbuh biji sebesar 3,25%, namun belum dapat meningkatkan pertambahan tinggi tanaman, jumlah daun, berat basah akhir, berat kering akhir dan laju pertumbuhan relatif. Kombinasi jenis media tanam tanah + kompos dapat meningkatkan persentase berkecambah sebesar 73,33% dan kecepatan tumbuh benih sebesar 3,40%. Penelitian ini sangat penting dalam penyiapan bibit siap tanam dalam budi daya V. pinnata.Abstract Seedling using seed extraction method has not been explored much and it needs to add soil enhancers to increase seedling growth. This research aims to determine the effect of seed extraction and combinations of planting media to seeding Laban (Vitex pinnata L. Kuntze). This research used a complete randomized design with two treatment factors namely seed extraction (A0= wet extraction, A1= dry extraction) and combinations of plant medium (M0= soil, M1= soil + sand, M2= soil + compost, M3= soil + cocopeat) were repeated three times each. The data were analyzed by using variance test (ANOVA) at 95% level of confidence and continued using Duncan test at 95% level of confidence. The result showed that the dry seed extract treatment increased the average of germination percentage by 65.83% and seed growth rate about 3.295% but could not increase plant height, leaf number, final wet weight, final dry weight dan relative growth rate. The combination of planting media  + compost increased the germination percentage by 73.33% and the seed growth about 3.40%, but not yet able to increase plant height, leaf number, final wet weight, final dry weight and relative growth rate of laban plant. This research is very important in preparing ready-to-plant seedlings in V. pinnata cultivation.


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