scholarly journals THE EFFECT OF AMMONIUM SULPHATE (ZA) FERTILIZER CONCENTRATION ON THE GROWTH OF MICROALGA POPULATION (Nannochloropsis oculata)

2020 ◽  
Vol 3 (2) ◽  
pp. 94-102
Author(s):  
Rony andes Fery ◽  
Syafruddin Nasution ◽  
Sofyan Husein Siregar
Keyword(s):  
Growth Rate ◽  
Cell Population ◽  
Test Organism ◽  
Nannochloropsis Oculata ◽  
Control Treatment ◽  
Exponential Growth Phase ◽  
Randomized Design ◽  
Test Parameters ◽  
West Sumatra ◽  
Cell Population Growth

This research was conducted from 24 June to 6 July 2019 in the Regional Technical Implementation Unit of the Seawater and Brackish Aquaculture Fisheries Center (UPTD BPBALP Teluk Buo), West Sumatra. This study aim to determine the effect of Ammonium Sulfate ((NH4)2SO4) with different concentrations on the growth rate of Nannochloropsis oculata microalgae population. The method used in this study is an experimental method using a completely randomized design (CRD) one factor, namely ZA fertilizer concentration. There were 5 (five) levels concentration tested, namely 0 ml/L (control treatment), 30 ml/L (treatment A), 40 ml/L (treatment B), 50 ml/L (treatment C), and 60 ml/L (treatment D) total of 15 treatment units. The test organism in this study was N. oculata. The container used is a glass jar (2 liter capacity). The test parameters in this study are the maximum cell population density achieved during 5 days of maintenance (120 hours), relative growth, self-doubling time and specific growth rate during the exponential growth phase. The results of this study indicate that the best concentration of ZA fertilizer for cell population growth is 40 ml/L, followed by a concentration of 30 ml/L, a concentration of 50 ml/L, a concentration of 60 ml/L and the lowest at a concentration of 0 ml/L (control) .       

PENGARUH EKSTRAK KASAR BUAH PALA MYRISTICA ARGENTEA TERHADAP PERTUMBUHAN IKAN KOI CYPRINUS CAPRIO

2021 ◽  
Vol 4 (1) ◽  
pp. 7-10
Author(s):  
Nuryanti Leko ◽  
Sutia Budi ◽  
Mardiana Mardiana ◽  
Dahlifa Dahlifa
Keyword(s):  
Growth Rate ◽  
Crude Extract ◽  
Research Method ◽  
Ornamental Fish ◽  
Good Effect ◽  
Length Growth ◽  
Weight Growth ◽  
Randomized Design ◽  
Test Parameters ◽  
Completely Randomized Design

Ikan koi di Indonesia merupakan ikan hias favorit dan banyak digemari masyarakat luas karena tubuhnya yang mempesona dan harganya relatif tidak terlalu mahal. Ikan koi sekarang ini masih menjadi salah satu komoditas perdagangan yang cukup baik dalam bidang perikanan. Tujuan dari penelitian ini adalah untuk mengetahui Pengaruh  Ekstrak Kasar Buah Pala Myristica Argentea  Terhadap Pertumbuhan Ikan Koi Cyprinus Caprio. Metode penelitian yang digunakan adalah Rancangan Acak Lengkap (RAL) ,dengan empat perlakuan dan tiga ulangan yaitu perlakuan A (Dosis 5% ekstrak kasar  buah pala), perlakuan B (Dosis 10% ekstrak kasar buah pala), perlakuan C (Dosis 15% ekstrak kasar buah pala) dan perlakuan D (   Dosis 0 % ekstrak kasar buah pala). Parameter uji berupa lajui pertumhuhan bobot dan pertumbuhan panjang. Hasil penelitian menunjukkan bahwa ekstrak Kasar Daging Buah Pala myristica argentea memberikan pengaruh yang baik terhadap pertumbuhan ikan ko setelah diberikan perlakuan.. Dosis yang baik untuk pertumbuhan berat dan panjang ikan koi ialah dosis  10% - 5%. Koi fish in Indonesia is a favorite ornamental fish and much-loved by the wider community because of its charming body and relatively inexpensive price. Koi fish is still one of the trade commodities that is quite good in the field of fisheries. The purpose of this study was to determine the Effect of Crude Extract of Nutmeg Myristica Argentea on the Growth of Cyprinus Caprio Koi Fish. The research method used was a completely randomized design (CRD), with four treatments and three replications, namely treatment A (5% dose of nutmeg crude extract), treatment B (10% dose of nutmeg crude extract), treatment C (15% dose of nutmeg extract). crude nutmeg) and treatment D (Dose of 0% crude extract of nutmeg). Test parameters in the form of weight growth rate and length growth. The results showed that the crude extract of the Nutmeg myristica argentea had a good effect on the growth of koi fish after being given treatment. A good dose for the growth of weight and length of koi fish is a dose of 10% - 5%

scholarly journals Effect of Adding BIOM-S Probiotic on Survival and Growth Rate of Nile Tilapia (Oreochromis niloticus)

2018 ◽  
pp. 1-6
Author(s):  
Yuli Andriani ◽  
Taufik Ikhsan Kamil ◽  
Irfan Zidni ◽  
Iskandar . ◽  
Titin Herawati
Keyword(s):  
Growth Rate ◽  
Survival Rate ◽  
Specific Growth Rate ◽  
Nile Tilapia ◽  
Specific Growth ◽  
Culture Media ◽  
Control Treatment ◽  
Randomized Design ◽  
Nile Tilapia Oreochromis Niloticus ◽  
Survival And Growth

This research was conducted in May-June 2017 in Hatchery Indoor Maksudi, Astanaanyar, Bandung. This research aims to find out the optimal BIOM-S probiotic on culture media of Nile tilapia, and the influence to survival rate and growth rate of Nile tilapia. This research was conducted by an experiment using Completely Randomized Design (CRD). This research consisted of five treatments and three replications, which were treatment A (control), treatment B (giving probiotic with 0,6 ml/L concentration), treatment C (giving probiotic with 0,8 ml/L concentration), treatment D (giving probiotic with ,0 ml/L concentration), and treatment E (giving probiotic with 1,2 ml/L concentration). The parameters in this research were the survival rate and specific growth rate. Survival rate and specific growth rate used data analysis with F test to find out the influence of each treatment. The concentration of optimal probiotic based on the results was 0.8 ml/L, it produced the highest survival rate for 81.67% and the specific growth rate for 0.039%.

scholarly journals Biochar enriched with organic fertilizer improves the survival and growth rate of Anthocepalus cadamba seedlings planted on degraded spodosols

2019 ◽  
Vol 20 (12) ◽  
Author(s):  
Syahrinudin Syahrinudin ◽  
Wahjuni Hartati ◽  
Triyono Sudarmadji ◽  
Nurman Krisdianto ◽  
Ibrahim Ibrahim
Keyword(s):  
Growth Rate ◽  
Organic Fertilizer ◽  
Application Rate ◽  
Organic Fertilizers ◽  
Control Treatment ◽  
Diameter Growth ◽  
Randomized Design ◽  
Seedling Growth Rate ◽  
Survival And Growth ◽  
Completely Randomized Design

Abstract. Syahrinudin, Hartati W, Sudarmadji T, Krisdianto N, Ibrahim. 2019. Biochar enriched with organic fertilizer improves the survival and growth rate of Anthocepalus cadamba seedlings planted on degraded spodosols. Biodiversitas 20: 3741-3750. The application of biochar for the improvement of soil properties and fertility has drawn enormous interest worldwide nowadays and numerous application options are now available. This research was aimed to evaluate the effects of the application of biochar and organic fertilizers on the survival and growth of Anthocepalus cadamba seedlings planted on degraded spodosols soil on bioassay trial in the nursery. Bioassay trial was carried out in the nursery of Faculty of Forestry, Mulawarman University, Samarinda, Indonesia, employing a 2-factors Completely Randomized Design (CRD) with factor 1 was the rate of biochar application (i.e. six levels of treatment: 0 (control), 2, 5, 10, 25 and 100%v of biochar), and factor 2 (enrichment of organic fertilizers, i.e. with enrichment and without enrichment), and each treatment combination had 3 replications. The results showed that biochar application alone improved height and diameter growth rate of A. cadamba seedlings by 253% and 116% of control treatment (without biochar), respectively. Enrichment of organic fertilizers gave further improvement in height and diameter growth rate of A. cadamba seedlings to 386% and 150% of control treatment (without biochar), respectively. Furthermore, biochar application improved survival and biomass growth rate of the seedlings. Enrichment of organic fertilizers into biochar improved not only seedling growth rate but also more interestingly the carrying capacity of spodosols to biochar application rate. We concluded that biochar application complemented with enrichment of organic fertilizers on spodosols is highly promising for the improvement of both soil carbon sequestration and plant growth performance.

scholarly journals Pemberian Rizobakteri dan Coumarin pada Pertumbuhan dan Pembentukan Umbi Tanaman Kentang (Solanum tuberosum L.)

2020 ◽  
Author(s):  
hennypuspitasari
Keyword(s):  
Growth Rate ◽  
Solanum Tuberosum L ◽  
Observation Data ◽  
Relative Growth ◽  
Potato Plants ◽  
Randomized Design ◽  
West Sumatra ◽  
Zone Development ◽  
Potato Crops ◽  
Small Observation

Increasing the productivity of potato crops will require the availability of tubers that are of high quality and resistantto disease. Giving isolates rhizobacteria and coumarin is expected to increase the growth and formation of potato tubers.The purpose of this study was to obtain the best types of rhizobacteria and coumarin concentrations in increasing theproductivity of potato plants. The research was conducted in the experimental garden of the Center for Technology Transferand Agricultural Zone Development of Andalas University, Alahan Panjang, Solok Regency, West Sumatra, from October2016 to January 2017. The study used a 2-factor complete randomized design with three replications. The first factor wasrhizobacterial isolates, namely without bacteria, BT.4.1 isolates, BT.4.2 isolates, BT.4.3 isolates. The second factor was theconcentration of coumarin growth inhibitors, namely 0, 50, 100, and 150 mg L-1. The characters observed were morphologicalcharacterization rhizobacteria, leaf area, relative growth rate, growth rate potato tubers at 1-month-old, fresh weight oftubers aged 100 days after planting, tuber classes, namely: large, medium and small. Observation data were analyzed bythe F test, followed by the HSD test at 5% level. The results showed that BT.4.1 and BT.4.2 rhizobacteria with coumarin 100mg L-1 and 150 mg L-1 increased the growth of potato plants, while the results of potato plants were more affected by theapplication of BT.4.1 and BT rhizobacteria.

Pengkayaan Pakan Alami Artemia sp. dengan Chaetoceros sp. pada Budidaya Post Larva Udang Vaname (Litopenaeus vannamei)

2021 ◽  
Vol 10 (2) ◽  
pp. 252-258
Author(s):  
Pandu Abdi Perdana ◽  
Salnida Yuniarti Lumbessy ◽  
Bagus Dwi Hari Setyono
Keyword(s):  
Growth Rate ◽  
Survival Rate ◽  
Analysis Of Variance ◽  
Litopenaeus Vannamei ◽  
Control Treatment ◽  
Natural Food ◽  
Randomized Design ◽  
Treatment Dose ◽  
Completely Randomized Design ◽  
Specific Length

Penelitian ini bertujuan untuk menganalisa pengaruh pengkayaan pakan Artemia sp. dengan Chaetoceros sp. terhadap performa pertumbuhan larva udang vaname (Litopenaeus vannamei). Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) dengan menggunakan empat (4) perlakuan perbedaan dosis Chaetoceros untuk pengkayaan Artemia sp., yaitu A (pakan alami Artemia sp. tanpa pengkayaan Chaetoceros) sebagai perlakuan kontrol, B (dosis pengkayaan Chaetoceros 1,5 x 105 sel/ind), C (dosis pengkayaan Chaetoceros 2,5 x 105  sel/ind) dan D (dosis pengkayaan Chaetoceros 3,5 x 105 sel/ind), masing-masing perlakuan dengan 4 kali ulangan. Data dianalisis menggunakan analysis of variance (ANOVA) pada taraf nyata 5% dengan selang kepercayaan 95% dan dilanjutkan dengan uji Duncan. Hasil penelitian menunjukkan bahwa pengkayaan pakan alami Artemia sp. dengan Chaetoceros dapat meningkatkan laju pertumbuhan panjang mutlak dan spesifik larva udang vaname tetapi tidak mempengaruhi tingkat kelangsungan hidupnya, dimana perlakuan dosis Chaetoceros 3,5 x 105 sel/ind memberikan laju pertumbuhan panjang mutlak dan spesifik  larva udang vaname yang lebih baik, yaitu berturut-turut  5,45 mm, dan 8,60%/hari. Pengkayaan pakan alami Artemia sp. dengan Chaetoceros sp. dapat meningkatkan nilai protein pakan larva udang vanname hingga mencapai 66 %. This study aims to analyze the effect of Artemia sp. with Chaetoceros sp. on the growth performance of vaname shrimp larvae (Litopenaeus vannamei). This study used a completely randomized design (CRD) using four (4) different treatments of Chaetoceros Dose for Artemia sp. Enrichment, namely  A (natural feed of Artemia sp. without Chaetoceros Enrichment) as control treatment, B (Chaetoceros sp. Enrichment dose 1,5 × 105 cells / ind), C (Chaetoceros enrichment dose 2,5 × 105 cells / ind) and D (Chaetoceros enrichment dose 3,5 × 105 cells / ind) , each treatment with 4 replications. The data were analyzed using analysis of variance (ANOVA) at a significant level of 5% with a 95% confidence interval and continued with the Duncan test. The results showed that enrichment of natural feed for Artemia sp. with Chaetoceros The growth rate of absolute and specific length of vannamei shrimp larvae but does not affect the survival rate, where the Chaetoceros treatment dose of 3,5 × 105 cells / ind gives the absolute and specific length growth rate of the vaname shrimp larvae. better, namely 5.45 mm, and 8.60% / day, respectively. Natural food enrichment of Artemia sp. with Chaetoceros sp. can increase the protein value of vanname shrimp larvae feed by up to 66%

scholarly journals Pemberian Rizobakteri dan Coumarin pada Pertumbuhan dan Pembentukan Umbi Tanaman Kentang (Solanum tuberosum L)

2019 ◽  
Vol 47 (2) ◽  
pp. 188-195
Author(s):  
Henny Puspita Sari ◽  
Warnita , ◽  
Dan Indra Dwipa
Keyword(s):  
Growth Rate ◽  
Solanum Tuberosum L ◽  
Observation Data ◽  
Relative Growth ◽  
Potato Plants ◽  
Randomized Design ◽  
West Sumatra ◽  
Zone Development ◽  
Potato Crops ◽  
Small Observation

Increasing the productivity of potato crops will require the availability of tubers that are of high quality and resistantto disease. Giving isolates rhizobacteria and coumarin is expected to increase the growth and formation of potato tubers.The purpose of this study was to obtain the best types of rhizobacteria and coumarin concentrations in increasing theproductivity of potato plants. The research was conducted in the experimental garden of the Center for Technology Transferand Agricultural Zone Development of Andalas University, Alahan Panjang, Solok Regency, West Sumatra, from October2016 to January 2017. The study used a 2-factor complete randomized design with three replications. The first factor wasrhizobacterial isolates, namely without bacteria, BT.4.1 isolates, BT.4.2 isolates, BT.4.3 isolates. The second factor was theconcentration of coumarin growth inhibitors, namely 0, 50, 100, and 150 mg L-1. The parameters observed were morphologicalcharacterization rhizobacteria, leaf area, relative growth rate, growth rate potato tubers at 1-month-old, fresh weight oftubers aged 100 days after planting, tuber classes, namely: large, medium and small. Observation data were analyzed bythe F test, followed by the HSD test at 5% level. The results showed that BT4.1 and BT.4.2 rhizobacteria with coumarin 100mg L-1 and 150 mg L-1 increased the growth of potato plants, while the results of potato plants were more affected by theapplication of BT.4.1 and BT rhizobacteria.

scholarly journals PENGARUH PEMBERIAN PAKAN DENGAN KADAR PROTEIN BERBEDA TERHADAP PERTUMBUHAN IKAN KAKAP PUTIH (Lates calcarifer) YANG DIPELIHARA DI BAK TERKONTROL

2018 ◽  
Vol 46 (2) ◽  
pp. 89
Author(s):  
Della Febriana Putri ◽  
Limin Santoso ◽  
Suryadi Saputra
Keyword(s):  
Growth Rate ◽  
Protein Content ◽  
Control Treatment ◽  
Feed Conversion ◽  
Lates Calcarifer ◽  
Daily Growth ◽  
Protein Retention ◽  
Protein Levels ◽  
Randomized Design ◽  
Absolute Growth

This study aims to determine the optimal protein content in the feed for the growth rate of seabass (Lates calcarifer) through feeding with different protein levels maintained in the controlled tank. This study used a complete randomized design (RAL) with 46% protein content of commercial feed, 46% protein content of formulation and 48% protein content of formulation each treatment consisting of three replications. The results of this study as a whole of the parameters observed included absolute growth, daily growth rate, protein retention, and liveliness gave significantly different results between control treatment with P1 and P2, while for feed conversion ratio gave significantly different result between treatment control with P2, but not significantly different between controls with P1 and P1 with P2. .With the provision of seabass with different protein levels maintained in a controlled tank gives the best results in the control treatment with a 46% protein content.

scholarly journals PENGARUH EKSTRA BUAH PALA MYRISTICA ARGENTHA TERHADAP PERTUMBUHAN DAN SINTASAN IKAN MAS KOI CYPRINUS CARPIO PADA DOSIS BERBEDA

2020 ◽  
Vol 3 (1) ◽  
pp. 19-22
Author(s):  
Nur Yanti ◽  
Sutia Budi ◽  
Mardiana Mardiana
Keyword(s):  
Growth Rate ◽  
Cyprinus Carpio ◽  
Crude Extract ◽  
Fish Feed ◽  
Fruit Extract ◽  
Growth And Survival ◽  
Randomized Design ◽  
Test Parameters ◽  
Completely Randomized Design ◽  
Different Doses

Ikan koi di Indonesia merupakan ikan hias favorit dan banyak digemari masyarakat luas karena tubuhnya yang mempesona dan harganya relatif tidak terlalu mahal. Tujuan penelitian ini adalah untuk mengetahui pengaruh  ekstrak kasar Buah Pala Myristica argentea  terhadap pertumbuhan dan sintasan ikan Koi Cyprinus caprio. Hewan uji digunakan jenis ikan Mas Koi Cyprinus carpio berumur 2 bulan dengan ukuran 10 ± 3,6 cm.  Kepadatan ikan Mas yang digunakan pada penelitian ini adalah 1 ekor./L.  Wadah penelitian berupa toples transparan berukuran 5 L.  Penelitian didesain dengan rancangan acak lengkap dengan 4 perlakuan dan masing – masing  tiga ulangan. Perlakuan yang diujikan adalah perbedaan dosis ekstrak Pala dalam pakan yang diberikan, yaitu perlakuan A (0 %),  perlakuan B (5 %), perlakuan C (10 %) dan perlakuan D (15 %).  Parameter uji berupa laju pertumbuhan dan sintasan ikan Mas Koi. Hasil penelitian menunjukkan bahwa pemberian ekstrak buah Pala pada pakan ikan Mas Koi memberikan nilai yang baik dimana pada tingkat pertumbuhan dan sintasan menunjukkan nilai yang baik. Nilai ini menunjukkan respon ikan Mas Koi pada ekstrak kasar Pala dapat diterima. Koi fish in Indonesia is a favorite ornamental fish and much favored by the wider community because of its charming body and the price is relatively not too expensive. The purpose of this study was to determine the effect of the crude extract of Myristica argentea Nutmeg on the growth and survival of the Koi fish Cyprinus caprio. The test animals used the type of Mas Koi Cyprinus carpio aged 2 months with a size of 10 ± 3.6 cm. The density of goldfish used in this study was 1 fish./L. The research container was a transparent jar measuring 5 L. The study was designed in a completely randomized design with 4 treatments and three replications each. The treatments tested were the different doses of Nutmeg extract in the feed given, namely treatment A (0 %), treatment B (5 %), treatment C (10%) and treatment D (15 %). The test parameters were the growth rate and survival rate of Mas Koi fish. The results showed that the administration of Nutmeg fruit extract on Mas Koi fish feed gave a good value where the growth rate and survival showed good values. This value indicates that the response of the Koi carp to the crude extract of nutmeg is acceptable.

scholarly journals Substitution of natural feed with artificial feed on the survival rate and growth rate of giant-snakehead Channa micropeltes

2021 ◽  
Vol 20 (2) ◽  
pp. 174-180
Author(s):  
Sarmila ◽  
Susilawati Susilawati ◽  
Sri Warastuti
Keyword(s):  
Growth Rate ◽  
Survival Rate ◽  
Specific Growth ◽  
Control Treatment ◽  
Growth And Survival ◽  
Weight Growth ◽  
Randomized Design ◽  
Trash Fish ◽  
Completely Randomized Design ◽  
And Control

The purpose of this study was to determine the best percentage of artificial feed substitution for growth and survival rate of giant-snakehead. This study used a completely randomized design (CRD) with 4 levels of artificial feed substitution dose treatment, namely 25%, 50%, 75%, 100%, and control (without artificial substitution). The feed used in the form of fresh trash fish mixed with artificial feed FF-999 with a protein content of 35%. The results showed that the control treatment (100% trash fish) gave the best survival rate and spesific growth rate of 75% and 2.12%/day, respectively. Meanwhile, the percentage of artificial feed substitution treatment which gave the best survival rate and specific growth rate was found in the substitution percentage treatment of 25% artificial feed with a survival rate of 66.67% and a daily weight growth rate of 1.89%/day. Substitution of 100% artificial feed caused death with a 0% survival rate. Keywords: artificial feed, feed substitution, giant-snakehead, survival rate, growth ABSTRAK Penelitian ini bertujuan menentukan persentase substitusi pakan buatan yang terbaik untuk laju pertumbuhan, dan tingkat kelangsungan hidup ikan toman. Penelitian ini menggunakan rancangan acak lengkap (RAL) dengan perlakuan 4 level dosis substitusi pakan buatan yaitu 25%, 50%, 75% dan 100% serta 1 kontrol (tanpa substitusi pakan buatan). Pakan yang digunakan berupa ikan rucah segar dicampur dengan pakan buatan berupa pellet dengan merk FF-999 berkadar protein 35%. Hasil penelitian menunjukkan bahwa perlakuan kontrol (100% ikan rucah) memberikan tingkat kelangsungan hidup dan laju pertumbuhan berat harian terbaik masing-masing sebesar 75% dan 2.12%/hari. Sementara untuk perlakuan persentase substitusi pakan buatan yang memberikan tingkat kelangsungan hidup dan laju pertumbuhan terbaik terdapat pada perlakuan persentase substitusi sebesar 25% pakan buatan dengan tingkat kelangsungan hidup 66.67% dan laju pertumbuhan berat harian 1.89%/hari. Substitusi 100% pakan buatan menyebabkan kematian dengan tingkat kelangsungan hidup 0%. Kata kunci: ikan toman, kelangsungan hidup, laju pertumbuhan, pakan buatan, substitusi pakan.

Modified Assay Medium for the Turbidimetric Assay of Chlortetracycline in Feeds

1976 ◽  
Vol 59 (3) ◽  
pp. 536-539
Author(s):  
Hussein S Ragheb
Keyword(s):  
Growth Rate ◽  
Excellent Agreement ◽  
Test Organism ◽  
Plate Method ◽  
Assay Sensitivity ◽  
Assay Medium ◽  
Turbidimetric Method ◽  
Turbidimetric Assay ◽  
Commercial Feeds ◽  
Lower Recovery

Abstract In previous experiments, the turbidimetric method for determining chlortetracycline-HCI (CTC-HCl) in feeds showed lower recovery than the AOAC plate method. Although the addition of vitamins to the turbidimetric medium improved results, values by the turbidimetric method remained about 10% lower than by the plate method. A modified (1.7 × the weight recommended by the manufacturer) turbidimetric assay medium decreased assay sensitivity but did not significantly change the slope of S. aureus response to CTC-HCl. There was no evidence that vitamin fortification of the modified medium had any significant effect on the growth rate of test organism. Examination of about 100 samples of commercial feeds containing CTC-HCl showed excellent agreement in results between the turbidimetric and plate methods.

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