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All Journal Jurnal Ilmu Lingkungan IndoMath: Indonesia Mathematics Education Jurnal Ekonomi, Manajemen Akuntansi dan Perpajakan (Jemap) Dinamika Pertanian
Rosyadi Rosyadi
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Economics, Econometrics & Finance Education Environmental Science Immunology & microbiology Mathematics

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DISTRIBUSI DAN KELIMPAHAN MAKROZOOBENTHOS DI SUNGAI SINGINGI RIAU Rosyadi Rosyadi; Syafruddin Nasution; Thamrin Thamrin
Jurnal Ilmu Lingkungan Vol 3, No 1 (2009): Jurnal Ilmu Lingkungan
Publisher : Program Pascasarjana Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jil.3.1.p.58-74

Abstract

This study was conducted in Singingi River in March 2008. To the objectiv of the study areidentify the macrozoobenthos community structure and its relationships with the physical andchemical properties of the river. Water and macrozoobenthos sample were taken in 3replications in 5 station namely inlower part of the river, Tanjung Pauh, Sungai Paku, Kotobaruand Petai. The samples were examined descriptively and analyzed in the labortary. Themacrozoobenthos samples were belong to 3 phylum, 4 classes, 8 families and 8 spesies. Theabundance of the organisms were 105 – 427 individu/M2, the diversity index (H’) were 0,93 –1,77, the domination index (C’) were 0,35 – 0,65 and the homogenity index were 0,52 – 0,84.The Chemical Oxygen Demand (COD), Biological Oxygen Demand (BOD), Sulphate, Ferrum,Total Suspended Solid (TSS) and Turbidity of the water were exceed the maximum levelsuggested by the Goverment Decree No. 82 / 2001, about The Management of Water Qualityand Pollution. The analysis revealed the positive correlation betwen macrozoobenthos withvarious physical and chemical characteristics of the water, the sediment and texture of thebottom material.
PENELITIAN PENDAHULUAN PENGARUH TEMPERATUR TERHADAP SURVIVAL EMBRIO DAN EBRIOGENESIS IKAN SILAIS TRICOPTERIS LIMPOK Thamrin Thamrin; Abdul Patah Rasyidi; Mulyadi Mulyadi; Rosyadi Rosyadi
Jurnal Ilmu Lingkungan Vol 4, No 1 (2010): Jurnal Ilmu Lingkungan
Publisher : Program Pascasarjana Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jil.4.1.p.1-10

Abstract

The experiment and observation of embriogenesis of Silais fish (Criptopteris limpok) wereconducted in Laboratory of Agriculture Faculty, Islamic University of Riau in December 2009.The aim of this study was to investigate the effect of temperature on a number of newly hatchedC. limpok and to describe the embriogenesis. Survival rate of larvae was 5 times higher intreatment (25oC) compared with control (29oC), i.e. 5% in treatment and 1% in control. Thenumber of larvae survival rate was low, but this condition was predicted causeb by low qualityof gamet. Embriogenesis development of eggs need 24 hours of length period of time to hatch,and they have a yolksac during 4 days.
Penggunaan Etnomatematika Pada Batik Paoman Dalam Pembelajaran Geomteri Bidang di Sekolah Dasar Sudirman Sudirman; Aloisius Loka Son; Rosyadi Rosyadi
IndoMath: Indonesia Mathematics Education Vol 1 No 1 (2018)
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (992.337 KB) | DOI: 10.30738/indomath.v1i1.2093

Abstract

This study aims to explore the ethnomatematics contained in Batik Paoman Indramayu and apply it to the learning of geometry field in elementary school. This research is a qualitative research with ethnography approach, where the data collection technique is done by library study, observation, interview, field note, and documentation. Interviews were conducted on two batik entrepreneurs and an embroidered entrepreneur. Based on the results of research data collection obtained 7 namely Parang Teja, Obar Abir, Biskuit Sawat, Serujing, Matahari, Siled and Banji Tepak. The concept of elementary geometry in the primary school that is on the paoman batik motif is the concept of point, straight line, curve line, zigzag line, line height, parallel line, angle, triangle, rectangle, fold symmetry, rhombus.Paoman batik motif that has the concept of geometry for elementary school, of course can be used in the pursuit of geometry fields such as on line recognition, angle recognition, and simple flat wake recognition.
PEMBERIAN PROBIOTIK DENGAN DOSIS BERBEDA TERHADAP PERTUMBUHAN IKAN BAUNG (Mystus nemurus) Rosyadi Rosyadi; Abdul Fatah Rasidi
DINAMIKA PERTANIAN Vol. 30 No. 2 (2015): Jurnal Dinamika Pertanian Edisi Agustus 2015
Publisher : UIR Press

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Abstract

The aims of this experiment were to find the effect of different doses of probiotics (raja siam) in a commercial feed on green catfish (Mystus nemurus) that is grown in freshwater pond. This experiment was conducted at the hatchery of Faculty of Aqriculture, Riau Islamic University, Pekanbaru. Twelve floating nets each size of 1x1x1.2 (m) were stocked with 10 individual of green catfish (Mystus nemurus). A completely randomized design with four treatments and three replications were used in this experiment. Four doses of probiotibs, i.e., 2 ml/kg (P1), 4 ml/kg (P2), 6 ml/kg (P3), and 0.0 ml/kg (P4) were used as treatment. The results showed that the best grouth of absolute body weight of green catfish was obtained in P1 treatment (34.67 gr), followed by P3 (32.67 gr), P2 (32.33 gr), and P0 (31.00 gr). The growth of absolute length for P1, P3, P2, and P0 treatment were 6.13 cm, 5.6 cm, 5.73 cm, and 5.33 cm, respectively, while the best daily growth rate was found at P1 treatment (1.62 , followed by P2 (1.52%), P3 (1.52), and P0 (1.50). Statistical analyses showed that there was not significant differences (P>0.05) across treatments. Fish feed conversion at the treatment P1, P2, P4, and P3 was 2.15; 2.26; 2.26 and 2.27, respectively. The average of survival rate was 100% and it was not significantly different (P>0.05).
PEMBERIAN PUPUK BOKASHI DENGAN DOSIS BERBEDA PADA MEDIA AIR LIMBAH RUMAH TANGGA TERHADAP PERKEMBANGAN POPULASI Moina sp Candra Muhasdika; Rosyadi Rosyadi; T Iskandar Johan
DINAMIKA PERTANIAN Vol. 30 No. 1 (2015): Jurnal Dinamika Pertanian Edisi April 2015
Publisher : UIR Press

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Abstract

The objective of tis esearch was to know the bokashi fertilizer use with different dosages od household waste water media on population development of Moina sp. The research was conducted at the fish breeding centre of Faculty of Agricuoture Riau Islamic University Pekanbaru from April to May 2014. The materials used were Moina sp, cow dung, and rice bran and containers used topless, household waste water. The completely randomized design was used with four treatments, namely P0 (without bokashi), P1 (dosage of 0.5 g/l), P2 (dosage of 1 g/l), and P3 (dosage of 1.5 g/l) and three replecation. The result showed that the highest population was found on the treatment with dosage of 1 g/l and occurred on 8th day with population numbers of 13,440 ind/l. The lowest population was found on the treatment of bokashi fertilizer use with peak population occurred on 6th day with population number of 4,260 ind/l. Based on varian analysis, the using of bokashi fertilizer with different dosage of household waste water madya for population development of Moina sp was found a sifnificant difference (99%). The water quality of madia culture during research such as temperature (26 – 280 C), pH (6.0 – 7.0),DO (5.25 – 6.00 ppm), and NH3 (0.19 – 1.85 ppm with water quality is still feasible for supporting survive and propogation of Moina sp.
PENGARUH PENAMBAHAN PROBIOTIK PADA PAKAN BUATAN TERHADAP PERTUMBUHAN IKAN BAUNG Jarod Setiaji; Jefri Hardianto; Rosyadi Rosyadi
DINAMIKA PERTANIAN Vol. 29 No. 3 (2014): Jurnal Dinamika Pertanian Edisi Desember 2014
Publisher : UIR Press

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Abstract

This study was conducted commencing on October 8, 2013 until December 7, 2013, at the hatchery Faculty of Agriculture, University of Islam Riau Pekanbaru. This study aimed to determine the effect of probiotic viterna on artificial feed on fish growth Mystus nemurus. This study used a completely randomized design with 4 treatments: P0 without treatment (control), P1 addition of probiotic viterna 2 cc/kg of feed, P2 4 cc/kg of feed and P3 6 cc/ g of feed. Fish samples used are fish seed baung 2 months old with an average weight of 3.0 g and 6.0 cm long. The container used in this study is the cage net with a size of 1 x 1 x 1.2 (m) 12 units. Analysis of data using analysis of variance with 5% confidence level. The results showed that the addition of probiotic treatment viterna the best feed in the treatment of 6 cc/kg of feed and the addition of probiotic viterna no significant effect on the growth of the absolute weight, daily weight growth rate and feed conversion rate baung fish.
PENGARUH PADAT TEBAR YANG BERBEDA TERHADAP PERTUMBUHAN IKAN SELAIS (Kryptopterus lais) DALAM KERAMBA JARING APUNG DI TASIK BETUNG KABUPATEN SIAK PROVINSI RIAU Agusnimar Agusnimar; Rosyadi Rosyadi; Vicky Renaldo Anggi
DINAMIKA PERTANIAN Vol. 29 No. 2 (2014): Jurnal Dinamika Pertanian Edisi Agustus 2014
Publisher : UIR Press

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Abstract

A study on the effect of stocking density toward growth rate of selais fish (Kryptopterus lais) was conducted in Betung lake, located in core zone of biosphere reserve of Giam Siak Kecil Bukit Batu, Riau Province from 1th May – 30 June 2011. The objective of the study was to determine the effect of the stocking density on the growth of selais fish reared in floating cages that placed into the Betung lake. The research used completely randomsize design experimental method with thee treatments of density and three replications. There were 10 fish/m³, 20 fish/m³ and 30 fish/m³. The seed of fish were placed into cages (1 m x 1 m x 1.2 m) and reared for 60 days. Commercial feed was given three times a day with 33% of protein. The result showed that stocking density had a significant effect on growth rate of K. lais. The best stock density was 10 fish/m³ and giving highest growth rate and daily growth rapid of selais fish, namely 23.7 gr and 2.55 %, respectively.
PENGARUH KOMBINASI PAKAN ALAMI DAN BUATAN TERHADAP KELULUSHIDUPAN DAN PERTUMBUHAN LARVA IKAN SELAIS (Kryptopterus lais) Agusnimar Agusnimar; Rosyadi Rosyadi
DINAMIKA PERTANIAN Vol. 28 No. 3 (2013): Jurnal Dinamika Pertanian Volume XXVIII, Nomor 3 2013
Publisher : UIR Press

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Abstract

Study on the effect of the combination of natural and artificial foods on the survival and growth rate of selais (Kryptopterus lais) was done. The objective of the study was to know the effect of the several feed combination on the growth and survival rate of Kryptopterus lais. A completely randomized design was applied with five treatments and two replications. The combination of the treatments consisted of 5 levels i.e. (A): Giving Moina sp on the 2-13th day, followed by Tubifex sp on the 11-21st day and 30% Tubifex sp + 15% pellet on the 21-30th day; (B): giving Moina sp on the 2-13th day, followed by Tubifex sp on 11- 21st day and 30% Tubifex sp + 15% pellets on the 21-30th; (C ): giving Artemia sp on the 2-9th day, followed by Tubifex sp on 7-21st day and 30% on Tubifex sp + 15% pellets; (D): Giving Artemia salina on the 2-13th day, followed by Tubifex sp on the 11-21st day and 30% Tubifex sp + 15% pellet on the 21-30th day; (E): Giving Tubifex sp on the 2-13th day, followed by Tubifex sp on the 11-21st day and 30%, and Tubifex sp+15% pellets on the 21-30th day. The hhighest survival of larva was recorded at the treatement E (combination among Tubifex sp giving on the 1-13th day, Tubifex sp on the 11th day, 30% Tubifex sp + 15% pellet) namely 34.67%. While the highest growth of weight and length was found at the treatment D (giving Artemia salina on the 2-13th day, followed by Tubifex sp on the 11-21st day and 30% Tubifex sp+15% pellets on the 21-30th day), respectively, were 2.55 gr and 7.31 cm.
PEMBERIAN PUPUK ORGANIK CAIR LENGKAP (POCL) Super ACI DENGAN DOSIS BERBEDA TERHADAP PERKEMBANGBIAKAN Moina sp Rosyadi Rosyadi
DINAMIKA PERTANIAN Vol. 28 No. 2 (2013): Jurnal Dinamika Pertanian volume XXVIII, Nomor 2 2013
Publisher : UIR Press

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Abstract

The aim of this research was to obtain the optimal dose from application of T. petroralis Regan on survival and seeds growth of Spirulina sp. The research was conducted at the hatchery of Faculty of Agriculture Riau Islamic University Pekanbaru during three months. A completely randomized design was used with four treatments, namely P1(5%), P2(10%), P3(15%), P4(20%) per body weight and three replicates. Twenty-days-old seed of T. petroralis Regan were used in this study. The average length and weight of seeds was 1.2 cm and 0.072 g, respectively. The initial stocking density was 5 ind./l. Feed used in this experiment was Spirulina sp (in the form of powder/dry) as a treatment which was obtained from PT. Polaris International Solar Jakarta. The results showed that the highest growth of T. petroralis was found on the treatment of feeding Spirulina sp with dose of 0.625 g of 10%, and the lowest dose of 20%, amounting to 0.452 g. For the growth of fish length Snakeskin Siam, the highest dose was found on Spirulina sp 10% at 1.4 cm, and the lowest dose was 5%, 15% and 20% overall by 1.3 cm. The survival fish of Snakeskin Siamese was at the highest dose of 10% with 88.90% and the lowest dose of 20% was 49.33%, while the daily growth rate of fish weight of Snakeskin Siam obtained from the highest dose of 10% Spirulina sp 7.86%, and the lowest value of 20% at a dose of 6.83%.
PEMBERIAN Spirulina sp DENGAN DOSIS BERBEDA TERHADAP KELULUSHIDUPAN DAN PERTUM¬BUHAN BENIH IKAN SEPAT SIAM (Trichogaster pectoralis REGAN) Rosyadi Rosyadi
DINAMIKA PERTANIAN Vol. 27 No. 3 (2012): Jurnal Dinamika Pertanian Volume XXVII, Nomor 3 2012
Publisher : UIR Press

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Abstract

This experiment was conducted at the Fish Hatchery, Faculty of Agriculture, Riau Islamic University Pekanbaru during three months. The aims of this experiment were to find out the effect of doses of Spirulina sp on survival and growth of seeds of Trichogaster petroralis Regan. Twenty-days-old seed of T. petroralis Regan were used in this study. The average length and weight of fish seed were 1.2 cm and 0.072 g respectively, with initial stocking density of 5 individual/liter. A completely randomized design with three replicates was used in this experiment. Spirulina sp (in the form of powder/dry) with different doses, P1 (5%), P2 (10%), P3 (15%), and P4 (20%) per body weigh were used as treatment. The results showed that the highest weight obtained was found to be 0.625 g at treatment 10%, while the lowest weight was found to 0.452 g in treatment 20%. The seed length of T. pectoralis was approximately 1.4 cm in treatment 10%, it was longer than the length of the seed 1.3 cm at treatment 5%, 15%, and 20%. The highest survival of T. pectoralis was found to be 88.90% at treatment 10%, while the lowest survival was found at treatment 20% to be 49.33%. The growth rate of daily weight of T. pectoralis for 10% was the highest 7.86%, and the lowest was found in 20% to be 6.83%.
Co-Authors Abdul Fatah Rasidi Abdul Patah Rasyidi Agusnimar Agusnimar Aloisius Loka Son Candra Muhasdika Ferdinan Ferdinan Jarod Setiaji Jefri Hardianto Mulyadi Mulyadi Sudirman Sudirman Syafruddin Nasution T Iskandar Johan Thamrin Thamrin Vicky Renaldo Anggi Wahyudi Wahyudi