Judul: Effect of Oodev Hormones and Methyltestosterone  in Gonad Maturation of Eel (Anguilla sp.)
Abstrak: Ikan sidat (Anguilla sp.) termasuk ke dalam ikan kategori katadromus yang beruaya dari hulu sungai menuju ke laut untuk memijah serta bertelur. Hingga saat ini budidaya ikan sidat masih menggunakan 100% benih yang berasal dari alam. 17α-metiltestosteron merupakan androgen spesifik pada spesies jantan yang sering digunakan dalam pembalikan kelamin (maskulinisasi). Oodev merupakan hasil dari kombinasi antara Pregnant Mare Serum Gonadotropin (PMSG) dan anti dopamin. Rancangan penelitian ini berupa rancangan acak lengkap yang terdiri atas empat perlakuan dengan tiga ulangan. Perlakuan terdiri dari 2 mL Oodev, 1 mL Oodev + 3 mg 17α-metiltestosteron, 1 mL Oodev + 6 mg 17α-metiltestosteron dan perlakuan kontrol. Ikan sidat yang digunakan berukuran bobot rata-rata 239±24,10 g yang berasal dari pembudidaya di daerah Situbondo, Jawa Timur. Wadah pemeliharaan ikan sidat adalah bak beton yang berukuran 2 m x 2 m x 0,7 m (2,8 m3 ) selama 60 hari pemeliharaan. Pakan yang diberikan berupa pakan tepung yang telah ditambahkan hormon dan pemberian dilakukan secara restricted sebanyak 3% dari biomassa dengan frekuensi pemberian pakan dua kali sehari. Hasil penelitian berupa penambahan Oodev dan 17α-metiltestosteron berpengaruh nyata terhadap indeks gonadosomatik dengan hasil terbaik pada perlakuan OMT6 dengan 0,32 %., Eel (Anguilla sp.) belongs to the catadromous category of fish that migrates from the upstream of the river to the sea to spawn and lay eggs. Until now, the cultivation of eel still uses 100% of seeds that come from nature. 17α methyltestosterone is a male species-specific androgen that is often used in sex reversal (masculinization). Oodev is the result of a combination of Pregnant Mare Serum Gonadotropin (PMSG) and anti-dopamine. The research design was completely randomized, consisting of four treatments with three replications. The treatment consisted of 2 mL Oodev, 2 mL Oodev + 3 mg 17α-methyltestosterone, 2 mL Oodev + 6 mg 17α-methyltestosterone, and control treatment. The eel used has an average weight of 239±24.10 g from farmers in the Situbondo area, East Java. The eel-rearing container is a concrete tank measuring 2 m x 2 m x 0.7 m (2.8 m3 ) for 60 days of rearing. The feed given was in the form of flour that had been added with hormone and was given in a restricted manner as much as 3% of the biomass with the frequency of feeding twice a day. The results of the study in the form of the addition of Oodev and 17α-methyltestosterone had a significant effect on the gonadosomatic index with the best results in the OMT6 treatment with 0.32%.
Keyword: Anguilla sp., gonadosomatic, gonadal maturation, Methyltestosterone, Oodev

Judul: Hormonal Induction of Gonads Maturation Female Eel Fish (Anguilla bicolor bicolor) with a Combination of Oodev and Catfish Pituitary
Abstrak: Ikan sidat Anguilla bicolor bicolor merupakan komoditas budidaya dengan potensi pasar yang tinggi diseluruh dunia. Permasalahan pada budidaya sidat terdapat pada keberhasilan pembenihan. Ketersediaan induk ikan sidat matang gonad masih langka dikarenakan sidat tidak dapat bereproduksi pada perairan tawar ataupun wadah budidaya. Penelitian ini bertujuan untuk menganalisis perkembangan kematangan gonad ikan sidat dengan penyuntikan kombinasi hormon Oodev dan hipofisa ikan lele. Metode penelitian yang digunakan adalah metode eksperimen rancangan acak lengkap dengan perlakuan O (Oodev), H5 (Hipofisa ikan lele 0,5 mL/kg), dan OH5 (Oodev + hipofisa ikan lele). Penyuntikan hormon dilakukan 1 kali/minggu selama 12 minggu. Hasil penyuntikan hormon menunjukkan indeks gonadosomatik tertinggi yaitu H5 sebesar 3,57%, OH5 3,00%, dan O 2,70%. Indeks hepatosomatik tertinggi yaitu perlakuan OH5 sebesar 0,95%, O 0,92%, dan H5 0,89%. Digestive tract somatic index tertinggi yaitu perlakuan H5 sebesar 1,50%, O 1,35%, dan OH5 1,33%. Penurunan bobot tertinggi terdapat pada perlakuan H5 sebesar -61 gr, OH5 -45,33 gr, dan O -40,33 gr. Penurunan panjang tertinggi terdapat pada perlakuan O sebesar -1,1 cm, OH5 -0,7 cm, dan H5 -0,6 cm. Indeks mata tertinggi yaitu perlakuan O sebesar 1,50%, H5 1,42%, dan OH5 1,36%. Histologi gonad induk ikan sidat perlakuan OH5 menunjukkan hasil terbaik mencapai fase vitelogenik akhir. Pemberian kombinasi hormon Oodev dan hipofisa ikan lele memberikan pengaruh yang baik terhadap perkembangan gonad ikan sidat. Kombinasi hormon oodev dan hipofisa ikan lele 0,5 mg/mL memberikan hasil terbaik dalam pematangan gonad ikan sidat betina berukuran bobot 675,37 ± 99,97 gr/ekor dan panjang 64,73 ± 4,01cm/ekor dalam waktu pemeliharaan 12 minggu. Kata kunci : Hipofisa ikan lele, ikan sidat Anguilla bicolor bicolor, Oodev, pematangan gonad., Anguilla bicolor bicolor eel is a cultivated commodity with high market potential throughout the world. The problem in eel cultivation is the success of the hatchery. The availability of gonadal mature eel broodstock is still scarce because the eels cannot reproduce in freshwater or in aquaculture containers. This study aims to analyze the development of gonad maturity of eel by injection of a combination of Oodev hormone and catfish pituitary. The research method used was a completely randomized design experimental method with O (Oodev), H5 (catfish hypophysis 5 mL/kg), and OH5 (Oodev + catfish hypophysis) treatments. Hormone injections are carried out once a week for 12 weeks. The results of hormone injection showed the highest gonadosomatic index, namely H5 of 3.57%, OH5 of 3.00%, and O of 2.70%. The highest hepatosomatic index was 0.95% OH5 treatment, 0.92% O, and 0.89% H5. The highest digestive tract somatic index was treated with H5 1.50%, O 1.35%, and OH5 1.33%. The highest weight loss was found in the H5 treatment of -61 g, OH5 -45.33 g, and O -40.33 g. The highest decrease in length was found in the O treatment of -1.1 cm, OH5 -0.7 cm, and H5 - 0.6 cm. The highest eye index was treatment O at 1.50%, H5 at 1.42%, and OH5 at 1.36%. Gonadal histology of broodstock eel OH5 treatment showed the best results reaching the final vitellogenic phase. The combination of the Oodev hormone and catfish pituitary had a good effect on the
Keyword: nguilla bicolor bicolor eel, catfish pituitary, Oodev, gonad maturation

Judul: Klasifikasi dengan Analisis Komponen Utama Kernel
Abstrak: Principal component analysis (PCA) is a special case of the kernel PCA with linear kernel function. The aim of this study is to resolve the data problem that is not linearly separated and to classify an object into a group by using kernel PCA to obtain the smallest classification error. Group classification using kernel PCA is performed by the linear and Gaussian kernel function. The result of the study shows for wine recognition data with the linear and Gaussian (parameter 2.5) kernel function produces 30.889% and 17.416% classification error, respectively
Keyword: classification error, kernel, principal component analysis