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All Journal MEDIA PETERNAKAN - Journal of Animal Science and Technology Marine Fisheries: Jurnal Teknologi dan Manajemen Perikanan Laut
. Sudirman
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Agriculture, Biological Sciences & Forestry Environmental Science

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Determination of in Vitro Digestibility of Tropical Feeds Using Cattle Faeces as Rumen Fluid Alternative R Utomo; M Soedjono; B P Widyobroto; . Sudirman
Media Peternakan Vol. 34 No. 3 (2011): Media Peternakan
Publisher : Faculty of Animal Science, Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (642.77 KB) | DOI: 10.5398/medpet.2011.34.3.207

Abstract

The research was conducted to compare the ability of faeces dissolved in distilled water (P1), saline solution (P2), artificial saliva (P3), and rumen fluid (RF) as sources of inoculant  in  in vitro organic matter digestibilities (IVOMD) of rice straw, corn stover, napier grass, and pangola grass. The rumen fluid was collected from two rumen fistulated Ongole Crossbred Cows of 306 and 333 kg body weight (BW). The cows were fed 3% of BW consisted of 70% napier grass and 30% concentrate. At the end of  30 days  feeding, faecal solution was made out of 350 g fresh faeces dissolved in 1 l of each solvent, homogenized using blender for 30 second, while rumen liquor were collected directly from fistula. After straining with four layers of cheesecloth both faecal solution and rumen liquid were mixed with artificial saliva (1:4 v/v). Fifty ml of each inoculants was pipetted  into each incubator tube (100 ml) containing  500 mg sample. The tubes were then  incubated at 39 oC for 48 h. Value of  IVOMD of napier grass, rice straw, corn stover, and pangola grass did not differ among the faecal solvents, but significantly lower (Pin vitro organic matter to predict digestibility of fibrous feed determination. However, the faecal solvent as inoculant produced lower in vitro digestibility than that of rumen fluid.
PENGARUH PERBEDAAN UKURAN MATA PANCING TERHADAP HASIL TANGKAPAN PANCING ULUR DI PERAIRAN PULAU SABUTUNG PANGKEP (Effects of Difference of Hook Size on the Catch of Handline in Sabutung Island Waters of Pangkep Regency) Muhammad Kurnia; . Sudirman; Muhammad Yusuf
Marine Fisheries : Journal of Marine Fisheries Technology and Management Vol. 6 No. 1 (2015): Marine Fisheries: Jurnal Teknologi dan Manajemen Perikanan Laut
Publisher : Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (593.895 KB) | DOI: 10.29244/jmf.6.1.87-95

Abstract

ABSTRACTEffort to exploitation the fishery resources can do in various ways, catching effort by use of hand line is one of the efforts in the field of fisherie. The study was conducted in the Sabutung Island Waters of Pangkep Regency, aims was to investigate the effect of different of hook size and the species composition of the catch of hand line using different of hook size. The effectiveness of hook size is determined by the highest of catches.The method used is experimental fishing on the fishing operation of hand line during 30 trips. Data analysis used normality test and ANOVA test done with SPSS 16.0. The results showed that the differences between hook size number 10 with number 8 and 12 gave influences to the amount of catch. It’s showed by sig score hook size no.10 is 0,00 and sig score hook size no.8 and 12 is 0,00 which them have sig score less than 0,05 and it meant H0 pushed away so it concluded that the hook size influenced the fishing catch. The compositions of fish catch during the study based on the amount and weight were short mackerel, Bigeye scad, Indian scad, yellow tail and diodon histrix. Short mackerel were the most species of fish caught during the research that is equal to 41,2% of the 364 tail of the total catch.Keywords: hand line, hook size, small pelagic fish-------ABSTRAKUsaha mengeksploitasi sumber daya perikanan dapat dilakukan dengan berbagai macam cara, salah satu diantaranya adalah usaha perikanan tangkap dengan menggunakan pancing ulur (hand line). Penelitian dilakukan pada September-Nopember 2012 di Perairan Pulau Sabutung Kabupaten Pangkep, bertujuan untuk mengetahui pengaruh perbedaan ukuran mata pancing dan komposisi hasil tangkapan dari tiga ukuran mata pancing yang berbeda sehingga diperoleh ukuran mata pancing yang efektif. Efektifitas ukuran mata pancing ditentukan berdasarkan jumlah tangkapan terbanyak. Metode yang digunakan adalah metode experimental fishing, dengan operasi penangkapan ikan sebanyak 30 trip. Analisis data menggunakan uji kenormalan dan uji ANOVA dengan SPSS 16.0. Hasil penelitian menunjukkan bahwa perbedaan mata pancing no.10 dengan no.8 dan 12 berpengaruh terhadap jumlah dan berat hasil tangkapan pancing ulur. Hal ini dilihat dari nilai sig mata pancing no.10 sebesar 0,00 dan sig mata pancing no. 8 dan 12 sebesar 0,00 yang menunjukan nilai sig kurang dari 0,05. Ini menunjukan H0 ditolak sehingga disimpulkan bahwa ukuran mata pancing berpengaruh terhadap hasil tangkapan. Komposisi hasil tangkapan selama penelitian berdasarkan jumlah dan berat terdiri atas kembung lelaki, selar bentong, layang, ekor kuning dan ikan buntal. Ikan kembung lelaki adalah jenis ikan yang paling banyak tertangkap selama penelitian yaitu sebesar 41,2% yaitu 364 ekor dari keseluruhan hasil tangkapan.Kata kunci: pancing ulur, ukuran mata pancing, ikan pelagis kecil
PRODUKTIVITAS PENANGKAPAN IKAN PELAGIS BESAR MENGGUNAKAN PANCING ULUR YANG BERPANGKALAN DI KABUPATEN MAJENE (Large Pelagic Fisheries Productivity by Using Handline Based in Majene District) Alfa FP. Nelwan; . Sudirman; Mukti Zainuddin; Muh. Kurnia
Marine Fisheries : Journal of Marine Fisheries Technology and Management Vol. 6 No. 2 (2015): Marine Fisheries: Jurnal Teknologi dan Manajemen Perikanan Laut
Publisher : Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (772.383 KB) | DOI: 10.29244/jmf.6.2.129-142

Abstract

-------ABSTRACTLarge pelagic fish is a fishery commodity which has a high economic value, so its development can improve the economy of communities and regions. The aim of this study was to determine the fishing productivity of large pelagic fisheries using handline. This research was conducted in July until September 2012. This study examines the fishing productivity of handling with operated by a fisherman in Majene district, West Sulawesi. Fishing activity utilizing FADs as a fishing ground. Fishing Productivity was obtained from the weight ratio of the amount of catches and duration of fishing time. Fishing productivity is determined for each type of fish catches, namely skipjack tuna (Katsuwonus Pelamis), yellowfin tuna (Thunnus albacares), and mackerel tuna (Auxis thazard). The proportion of the total catches of skipjack tuna showed greater than other fish species. The relationship between fishing productivity with the time fishing is declining with increasing duration of time fishing. Cluster analysis showed that there are two clusters of fishing productivity for 23 fishing activity. Fishing ground with the largest production was in the FADs in 118031'44,8''E and 118°34'16.0"E, and 04030'25.6"S and 118029'37,3''BT. Large pelagic fish species observed is the skipjack tuna (Katsuwonus pelamis), yellowfin tuna (Thunnus albacares), and tongkol (Auxis hazard). Fishing productivity shows the downward trend and the fishing ground for the production of tuna, mackerel and yellowfin tuna fish highest in FADs at position 04026’06,3”S and 118031’44,8’’E ; 04030’25.6”S and 118029’37,3’’E.Keywords: FADs, fishing productivity, handline, large pelagic, majeneABSTRAKIkan pelagis besar merupakan salah satu komoditi perikanan yang memiliki nilai ekonomi yang relatif tinggi, sehingga pengembangan perikanan pelagis besar dapat meningkatkan ekonomi masyarakat dan daerah. Tujuan penelitian ini adalah menentukan produktivitas penangkapan ikan pelagis besar menggunakan pancing ulur. Penelitian ini dilakukan pada Bulan Juli-September 2012. Penelitian ini mengkaji produktivitas penangkapan pancing ulur yang dioperasikan nelayan di Kabupaten Majene, Sulawesi Barat. Aktivitas pemancingan memanfaatkan rumpon sebagai daerah penangkapan ikan. Produktivitas penangkapan diperoleh dari perbandingan berat jumlah hasil tangkapan dengan lama waktu pemancingan. Produktivitas penangkapan ditentukan pada masing-masing jenis ikan hasil tangkapan, yaitu cakalang (Katsuwonus pelamis), tuna ekor kuning (Thunnus albacares), dan tongkol (Auxis thazard). Proporsi jumlah hasil tangkapan menunjukkan cakalang lebih besar dibandingkan jenis ikan lainnya. Hubungan antara produktivitas penangkapan dengan lama waktu pemancingan menunjukkan kecenderungan menurun dengan bertambahnya lama waktu pemancingan. Analisis kluster menunjukkan terdapat dua kluster produktivitas penangkapan selama 23 aktivitas pemancingan. Daerah penangkapan ikan dengan produksi terbesar berada pada rumpon dengan posisi geografi 04026’06,3”LS dan118031’44,8’’BT ; 04030’25.6”LS dan 118029’37,3’’BT. Produktivitas penangkapan menunjukkan tren menurun. Posisi geografi rumpon yang memiliki produksi tuna, cakalang dan tongkol adalah pada posisi 04026’06,3”LS dan 118031’44,8’’BT ; 04030’25.6”LS dan 118029’37,3’’BT.Kata kunci: rumpon, produktivitas penangkapan, pancing ulur, pelagis besar, Majene
Co-Authors Abd. Rasyid Syamsuri Alfa FP. Nelwan B P Widyobroto M Soedjono Muh. Kurnia Muhammad Kurnia Mukti Zainuddin R Utomo