ANALISIS BAKTERI Escherichia coli PADA BUDIDAYA IKAN NILA (Oreochromis niloticus) DI TAMBAK-TAMBAK KOTA PEKALONGAN

Tilapia fish (Oreochromis niloticus) is one of freshwater commodities gained big attentionfrom governments abd obsevers of world fisheries issues, especially related to raising nutritients in countries – developing countries. The succes of Tilapias related to environment healthy and fish disease caused by bacteria. One of bacteria found in aquatic ecosystems is Escherichia coli. This research has a purpose to know there are Escherichia coli at Tilapia fish cultivation and to know the existence of contamination from cultivation media. This research is done on February 24th until March 6th, 2015. The research used sample purposive sampling, sample was taken at three fishpond locations, there was slamaran and Degayu. Then, sample was analyzed at Laboratory testing and Quality Control of Fishery Product ( LPPMHP), Pekalongan City. The research result show that Escherichia coli content in first fishpond is 3,6 MPN/gr, second fishpond is 9,4 MPN/gr and the last fishpond is 9,3 MPN/gr. Another side, Escherichia coli content of meat Tilapias is less than 3 MPN/gr for each cultivation, either in Slamaran or Degayu. It is stated that the content of E.coli in the pond water does not contaminate tilapia fish. Tilapia fish is safe for consumption. Keywords : Escherichia coli, fishpond, tilapia fis

ANALISIS KOMPARASI SUMBER AIR YANG BERBEDA DALAM PENGELOLAAN TAMBAK TERHADAP HASIL PRODUKSI UDANG VANNAMEI (Litopenaeus vannamei)

Water quality is one of the major factors in the success aquacultur vannamei shrimp in ponds. This study aims to determine differences in the different water sources in the management of ponds for the production of vannamei shrimp (Litopenaeuse vannamei). The method used in this study exploratory kompar with descriptive analysis of qualitative and quantitative. Statistical t-test results on the water quality of the pond water boreholes and water sources tidal pond in the mornings and evenings differ significantly consisting of salinity, temperature, dissolved oxygen, pH, brightness and ammonia. Production results obtained pond water source wells drilled better gained an average of 2850 kg, FCR 1.2, SR 93.7% growth and weight of 26.3 grams / tail, then the tidal pond water source gained an average of 2052, 5 kg, FCR 1.6 SR 92.7% growth and weight of 20 grams /. Suggestions vannamei shrimp culture with artesian well water sources need to be tail. Conclusions water quality and production wells drilled pond water better than water tidal pond applied and developed society to farmers and water quality observation needs to be done carefullyKeywords : Vannamei shrimp aquaculture, water quality, the result of production

PEMANFAATAN LAHAN SAWAH PUSO AKIBAT ROB MELALUI BUDIDAYA IKAN NILA BERBAGAI STRAIN DI DESA PECAKARAN KECAMATAN WONOKERTO KABUPATEN PEKALONGAN

           The purpose of this study was to discover the growth response of gift, larasati and sultana tilapia to fields affected by tidal flood, to discover the impact of economic value toward tilapia harvest. The study was conducted in  15 June 2012 – 13 April 2013 in fields impacted by tidal flood in Pecakaran Village Wonokerto Sub-District Pekalongan Regency. Test fishes used were seeds of gift tilapia, larasati tilapia and sultana tilapia with average length 5 - 7 cm. Seeds of gift tilapia, larasati tilapia and sultana tilapia. Stocking density for every hapa sized 100 x 100 x 100 cm was 20 seeds. Data collecte included data of water quality and growth. Water quality parameters measured  were temperature, oxygen, pH, depth, brightness and salinity which were measured every week. Data of tilapia growth was analyzed using variant analysis and to discover tilapia type which yielded the best growth tukey test was used. Data of water quality was analyzed descriptively. The result showed that unproductive fields due to tidal flood could still be used for tilapia cultivation, different test tilapia strain used had significant influence on the growth of test tilapia, larasati tilapia had the highest growth (95.61 gr/day), followed by gift tilapia (90.04 gr/day) and the lowest was sultana tilapia (46.07 gr/day), average water quality (water temperature and pH) of culture media during the study was in adequate range for the live and growth of test tilapia

APLIKASI TEPUNG DAUN TURI HASIL FERMENTASI DALAM PAKAN BUATAN TERHADAP PERTUMBUHAN BENIH IKAN NILA SRIKANDI (Oreochromis aureus x niloticus)

The aim of this research is to determine the effect of fermented flour turi leaves in artificial feed on the growth of Srikandi niloticus fish seed (Oreochromis aureus x niloticus). This research was conducted on Desember 5, 2016 to Januari 5, 2017 in the Laboratory of Brackish Water, Faculty of Fisheries, Pekalongan University. The research method used experimental methods with Complete Random Design (CRD), consisting of 4 treatments and 4 replications. The feed used is artificial feed, whcih added turi leaves fermented flour with different precentages 0 %, 5 %, 10 %, and 15 %. The fish used are Srikandi niloticus fish seed, sized 5-7 cm, stocked in the aquarium, with density of 1 fish/L. The parameters observed were the growing biomass, the survival rate (SR), and the quality of water as supporting data. The results of this research showed that the use of fermented flour turi leaves in artificial feed, affect the growth of Srikandi niloticus fish seed (F count (80,53)> F table (5,96)). The use of fermented flour turi leaves gave the highest yield to the biomass growth rate of Srikandi niloticus fish seed on a treatment equal to 7,33 grams. The results of polynomials orthogonal analysis produced the forms quadratc equation Y = 3,28 + 0,54 X – 0,02 X2 (R2 = 0,78), where X is the percentage of turi leaves fermented flour addition in artificial feed and Y is the growth of Srikandi niloticus fish seed biomass. Based on those equation, the result obtained maximum value X = 12,43 % of the total weight percentage of the feed additions, and maxmimum value Y = 6,64 grams. The survival rate of Srikandi niloticus fish seed during the research reached 100 %. The water quality research is feasible for media maintenance of Srikandi niloticus fish, that is temperature 26 – 29o C, pH 6.7 – 7.8, DO 6 mg/l.Keywords: Niloticus, Turi Leaves Fermented Flour

PENGARUH PERENDAMAN LARUTAN TEH TERHADAP DAYA TETAS TELUR IKAN LELE SANGKURIANG (Clarias gariepinus)

This study aims to determine the effect of the tea solution to the hatching of fish eggs catfish and determine the percentage of the optimal solution for soaking tea fish eggs catfish. The study was designed using completely randomized design (CRD) by applying 5 treatments and 3 replications. As the treatment is tea solution at a dose as follows: A (0 g / L), B (2 g / L), C (4 g / L), D (6 g / L) and E (8 g / L). Results of analysis of variance showed differences in the percentage of tea very significant effect on the percentage of hatchery fish catfish. The average percentage of hatchery fish catfish highest obtained at treatment of 6 g / L is 76.67%, then treatment of 8 g / L at 63.33%, the treatment of 4 g / L by 60%, the treatment of 2 g / L of 53.33% and lowest on the treatment of 0 g / L at 43.33%. The results of the analysis of polynomials orthogonal indicates that the response percentage of hatchery fish catfish to the difference in the percentage of tea quadratic equation: Y = 41.4286 + 8.4031 X - 0.6548 X2, where the percentage of tea optimal for 6:42% with the percentage of hatchery fish catfish of 68.39%. Keywords : Hatcing rate, tea, catfis

PENGARUH BERBAGAI DOSIS PERENDAMAN EKSTRAK DAUN CENGKEH TERHADAP DAYA TETAS TELUR IKAN MAS (Cyprinus carpio L.)

This study aims to determine the effect of immersion clove leaf extract against hatching of fish eggs Mas. The experiment was conducted on January 31 -5 in February 2017, at the Laboratory of Fish Seed (BBI) Sojomerto, District Reban, Batang. The study was conducted based on completely randomized design (CRD) with 5 treatments and 3 replications. Parameters measured were hatchability of eggs of fish Mas Treatments were differences in dose soaking leaf extract Clove on fish eggs Mas, namely A (0 ppt), B (5 ppt), C (7 ppt), D (9 ppt), and E (11 ppt). To determine the effect of treatment on the hatchability of eggs. All data was proceed on analysis of variance. Result showed the highest hatching value reached on immerson clove leaf extract at a dose of 9 ppt, around 98,89%. Respectively, a dose of 7 ppt in the amount of 88,89%, 11 ppt reached up 82,22%, 5 ppt of 61,11% and the lowest value on 0 ppt, which is equal tp 17,78%. Water quality in the range of feasible Ph 6-7, temperature 22-240C, and DO 4.32 -5.7ppm.Keywords: Clove Leaf Extract, carp (Cyprinus carpio L.), hatching rat

PENGARUH TINGKAT PENURUNAN SALINITAS MEDIA DALAM PROSES AKLIMASI TERHADAP TINGKAT KELANGSUNGAN HIDUP IKAN KERAPU CANTANG (Epinephelus fuscoguttatus - lanceolatus)

This study aims to determine the effect of the decrease in media salinity on survival rates of grouper fish and determine the relationship between the survival rate of the cantang grouper and the level of decrease in media salinity in the acclimation process.The study was conducted in June 2018 at the Brackish and Sea Water Laboratory of Pekalongan University in Pekalongan. The test fish used was a cantang grouper with a size of 3-5 cm. This cantang grouper juvenille is obtained from the Situbondo Marine Cultivation Center. The design used was a completely randomized design with 4 treatments and 3 replications. The treatment applied was a decrease in the level of media salinity as follows: 2 ppt/hour, 4 ppt/hour, 6 ppt/hour and 8 ppt/hour. The survival rate of the grouper fish is analyzed using variance analysis. Furthermore, an orthogonal polynomial analysis was performed to correlate the survival rate of the grouper fish to the level of decrease in media salinity.The highest survival rate of the grouper grouper was obtained at a level of decrease in salinity of 2 ppt/hour ie 91.67%, then a decrease in salinity of 4 ppt/hour ie 61.11%, a decrease in salinity of 6 ppt/hour ie 46.67% , and the lowest at a decrease in salinity of 8 ppt/hour which is 25%.The results of the variance analysis revealed that the level of decrease in media salinity had a very significant effect on the survival rate of bushy groupers. The results of orthogonal polynomial analysis showed that the relationship between the survival rate of the grouper fish to the level of decreasing salinity of linear media with the equation: Y = 109.72 - 10.72 X (R2 = 0.97) (R2 = 0.97)

PENGARUH PENGGUNAAN PASIR MALANG SEBAGAI FILTER DALAM MEDIA AIR LIMBAH BATIK TERHADAP KELANGSUNGAN HIDUP IKAN KOI (Cyprinus carpio Linn)

Batik Indonesia became more famous after gaining recognition from the United Nations Edutional, Scientific and Cultural Organization (UNESCO). Batik-making is certainly generate waste and pollution , many batik industry that drain effluent wastewater to flow - the flow of water around, causing the flow of polluted water, declining water quality and damage aquatic life (fish, microorganisms , and others). Water is an important medium in the operational activities of aquaculture , this is because the water functions as the survival of fish . The use of poor sand as a filter in an aqueous medium batik waste koi care also determine the effect the survival of fish in the media proficiency level with the treatment of poor sand different, and knowing the poor sand capable of being a substrate that is able to purify water because it has a composition of CaO , Al2O3 and FeO. In testing the media by way of poor sand substrate put the aquarium bottom (sedimentation), clearly visible color change that occurs at the beginning of batik waste water colored dark red to green translucent (for 5 -day precipitation) . Treatment with the best survival percentage in C is 86.76 % (800 g) and D (1000 g) percentage of 93.33 % , while in treatment A (control) fish dying and treatment D percentage of fish life is very low at 13 , 33 % with poor sand 600gr . The test results stated poor sand able to be purifying (demineralization) water.Keywords : poor sand, batik waste water, koi fis

PENGARUH PEMBERIAN PUPUK KOTORAN AYAM DAN BURUNG PUYUH PADA MEDIA KULTUR DENGAN DOSIS BERBEDA TERHADAP PERTUMBUHAN POPULASI Daphnia sp.

The aim of research is to determine the optimal dose of fertilizer so that it can produce the maximum population growth. This research using Complete Random Design (RAL) method with 4 treatments and 3 repetitions. As the treatment is a dose of chicken manure (25%) and quail (75%), the dose oftreatment A 0 gr/L, treatment B 2 gr/L, treatment C 4 gr/L and D treatment 6 gr/L. Based on the results of the experiment, treatment D showed the highest results (1188,33 Ind/L), then followed by treatment C (10440,00 Ind/L), treatment B (9216,67 Ind/L) and treatment A (5440,00 Ind/L), while the responseof the population growth of Daphnia sp. to doses of chicken and quail manure in a culture media showedpolinier with the equation Y = 5939.33 + 1055.5 X (R2 = 0.96). TheCondition of water qualityduring a research is still apropiate for supporting life and population growth of Daphnia sp.The temperature during the research was 26-28,5C, DO was 2,4-3,8 mg / l, and pH was 6, 5-8, 9.Keywords: Daphnia Sp, Culture, Chicken manure, quail manure, water quality

Efektifitas Penambahan Ekstrak Sonneratia caseolaris Pada Pakan Ikan Kerapu Cantang (Ephinephelus fuscoguttatus X Ephinephelus lanceolatus)

Sonneratia caseolaris merupakan jenis tanaman bakau yang banyak dimanfaatkan pada kegiatan akuakultur. tujuan dari penelitian ini adalah untuk mengetahui efektifitas penambahan ekstrak buah mangrove Sonneratia caseolaris yang dicampurkan pada pakan komersil untuk pemeliharaan ikan kerapu cantang (Ephinephelus fuscoguttatus X Ephinephelus lanceolatus). Metode penelitian yang digunakan pada penelitian ini adalah Rancangan Acak Lengkap (RAL) dengan pemberian dosis perlakuan 5 mg/L, 15 mg/L, dan kontrol dengan masing-masing tiga pengulangan. Hasil penelitian menunjukkan perlakuan 15 mg/L ekstrak buah pedada pada pakan komersil adalah dosis terbaik. Hal tersebut dapat dilihat dari nilai biomassa rata-rata 37.78 gr, feed conversion ratio 1.10, survival rate 100%, dan efisiensi pemanfaatan pakan sebesar 90.26%. Selain itu parameter kualitas seperti pH 7.9, oksigen terlarut 5.88 mg/L, suhu 290C, dan salinitas 31 ppt secara keseluruhan masih sesuai baku mutu air untuk kegiatan budidaya ikan air payau. Perlakuan lain yaitu 5 mg/L dan kontrol juga cukup progresif, tetapi tidak seefektif perlakuan 15 mg/L. Kesimpulan penelitian ini adalah Penambahan ekstrak buah mangrove Sonneratia caseolaris pada pakan komersil ikan kerapu cantang dinilai cukup efektif dengan pengambilan dosis ekstrak sebesar 15 mg/L. Indikator nyata yang dapat dilihat adalah nilai parameter biomassa ikan, feed conversion ratio, survival rate, dan efektifitas pemberian pakan