Judul: Relationship Analysis of Fish Farmer Profile with Catfish Farming Productivity at PT. Ikan Bangun Indonesia (IWAKE) Bogor
Abstrak: Permintaan ikan lele yang terus meningkat di Indonesia mendorong pembudidaya untuk meningkatkan produksinya. IWAKE merupakan salah satu perusahaan rintisan akuakultur yang memiliki tingkat kelangsungan hidup rata-rata ikan lele hanya 67% dan produktivitas budidaya rata-rata hanya 6,53 kg/m2 pada awal tahun 2022. Hal ini menjadi masalah karena dapat mengakibatkan kerugian pada ketiga pihak. Penelitian ini bertujuan mendeskripsikan profil pembudidaya yang mencakup karakteristik, sistem kompensasi, kinerja produksi, dan menghitung produktivitas pembudidaya, serta menganalisis hubungan profil pembudidaya dengan produktivitas. Jenis penelitian yaitu non eksperimental dengan metode studi kasus. Data profil pembudidaya, karakteristik pembudidaya, sistem kompensasi, dan kinerja produksi yang digunakan sebagai variabel bebas dianalisis secara statistik dan deskriptif. Hasil analisis menunjukkan bahwa semua variabel memiliki hubungan dan berpengaruh terhadap produktivitas budidaya ikan lele kecuali profil dan karakteristik pembudidaya., The increasing demand for catfish in Indonesia encourages fish farmers to increase their production. IWAKE is an aquaculture startup that has an average survival rate of catfish of only 67% and aquaculture productivity of only 6.53 kg/m2 in early 2022. This is a problem for the company. This study aims to describe the fish farmer profiles i.e. attitudes, compensation systems, production performance, and calculate the fish farmers productivity, as well as analyze the relationship between fish farmer profiles with farm productivity. The type of research is non-experimental with the case study method. The data of fish farmer profiles and attitudes, compensation systems, and production performance used as independent variables were analyzed statistically and descriptively. The results of the analysis show that all variables have a relationship and affect on catfish farming productivity except fish farmer profile and attitude.
Keyword: attitude, characteristics, production performance, profit sharing

Judul: Performance of Production and Bussiness on Catfish (Clarias sp.) Grow-out in Different Container Forms at Trio Raja Mandiri Farm, Bogor
Abstrak: Ikan lele banyak digemari masyarakat karena harga terjangkau dan memiliki kandungan protein yang tinggi. Permintaan pasar terhadap ikan lele terus meningkat sehingga memacu pembudidaya ikan lele guna memenuhi permintaan pasar tersebut. Bentuk wadah yang banyak digunakan dalam budidaya ikan lele, yaitu bulat dan persegi. Penggunaan wadah terpal dengan bentuk bulat dan persegi memiliki kelebihan dan kekurangannya masing-masing. Hasil budidaya nantinya akan mempengaruhi produktivitas dan nilai keuntungan yang didapatkan. Penelitian ini bertujuan menganalisis kinerja produksi dan kinerja usaha pembesaran ikan lele pada bentuk wadah yang berbeda, yaitu bulat dan persegi panjang. Penelitian ini menggunakan metode studi kasus dengan melakukan pengamatan data secara langsung selama budidaya, wawancara, serta pengumpulan data yang berkaitan dengan usaha budidaya. Hasil penelitian menunjukkan bahwa kinerja produksi pada pembesaran ikan lele menghasilkan produktivitas rata-rata pada wadah bulat sebesar 19,76±1,35 kg/m2 dan pada pada wadah persegi panjang sebesar 9,57±1,85 kg/m2. Kinerja usaha yang didapatkan pada wadah A dengan nilai payback period (PP) 0,73 tahun dan revenue cost ratio (R/C) 1,35, untuk wadah B didapatkan nilai PP 1,45 tahun dan R/C 1,12. Kinerja produksi dan kinerja usaha pembesaran ikan lele dengan penggunaan wadah bulat didapatkan nilai lebih tinggi daripada wadah persegi panjang., Catfish is highly favored by the community due to its affordable price and high protein content. The market demand for catfish continues to increase, driving catfish farmers to meet the market demand. The commonly used forms of containers in catfish farming are round and rectangular. The use of tarpaulin containers in round and square shapes has their respective advantages and disadvantages. The cultivation results will ultimately affect the productivity and profitability. This research aims to analyze the production performance and business performance of catfish farming in different container shapes, namely round and rectangular. This study employs a case study method, which involves observation, interviews, and direct participation in the activities to collect data. The research findings indicate that the production performance of catfish farming yields an average productivity of 19,76±1,35 kg/m2 in round containers and an average productivity of 9,57±1,85 kg/m2 in rectangular containers. The business performance obtained in container A shows a PP (payback period) value of 0,73 years and an R/C (return on capital) ratio of 1,35, while in container B, the PP value is 1,45 years and the R/C ratio is 1,12. The production performance and business performance in catfish farming using round containers yield higher values compared to rectangular containers.
Keyword: catfish, business performance, production performance, round container, square container

Judul: Pelabelan Super Vertex Magic
Abstrak: Super vertex magic labeling is labeling on graph with is a set of edges mapped into and is a set of vertices mapped into . It has a vertex magic labeling in which and represents the size and order of the graph respectively. This manuscript proves that paths, cyclics, and disjoint union of cyclics have a super vertex magic labeling. There are four theorems to be discussed. The first theorem proves that path is super vertex magic if and only if is odd and . The second theorem proves that cyclic is super vertex magic if and only if is odd. The third theorem proves that bijection function from an edge set onto of graph can be extended to a super vertex magic labeling if and only if the set amount of edge label that incidents with a vertex in the graph, consists of sequential integers as many as vertices in the graph. The fourth theorem proves that disjoint union of the cyclics consists of cyclics with each cyclic has vertices is super vertex magic if and only if and are odd.
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