Judul: Pemanfaatan Tepung Kacang Koro Pedang Canavalia ensiformis sebagai Bahan Pakan Ikan Nila Oreochromis sp.
Abstrak: Kacang koro pedang merupakan salah satu tanaman lokal yang kurang dimanfaatkan namun memiliki kandungan nutrien yang tinggi berupa protein dan karbohidrat yang berpotensi sebagai bahan baku pakan ikan. Penelitian ini bertujuan mengevaluasi pemanfaatan tepung kacang koro pedang mentah sebagai bahan baku pakan terhadap pertumbuhan ikan nila (Oreochromis sp.). Penelitian menggunakan rancangan acak lengkap dengan 4 perlakuan yaitu TK0 (jumlah tepung kacang koro pedang 0%), TK5 (jumlah tepung kacang koro pedang 5%), TK15 (jumlah tepung kacang koro pedang 15%), dan TK25 (jumlah tepung kacang koro pedang 25%) yang ditambahkan pada formulasi pakan dengan tiga kali ulangan. Ikan nila dipelihara dalam akuarium ukuran 50×50×40 selama 60 hari sebanyak 15 ekor dan diberi pakan dengan frekuensi 3 kali sehari secara at satiation. Hasil penelitian menunjukkan kinerja pertumbuhan ikan nila yang diberi pakan mengandung bahan tepung kacang koro pedang menunjukkan hasil berbeda nyata (P<0,05) karena tidak memberikan performa pertumbuhan yang baik seperti total biomassa akhir, bobot rata-rata akhir, laju pertumbuhan harian, laju pertumbuhan spesifik, tingkat kelansungan hidup, rasio konversi pakan, retensi protein, retensi lemak, dan morfometri usus menunjukkan adanya kelainan., Jack bean is one of the underutilized local plants but has a high nutrient content in the form of protein and carbohydrates that have the potential as raw materials for fish feed. This study aims to evaluate the utilization of raw jack bean flour as a feed raw material on the growth of tilapia (Oreochromis sp.). The study used a completely randomized design with 4 treatments, TK0 (0% amount of jack bean flour), TK5 (5% amount of jack bean flour), TK15 (15% amount of jack bean flour), and TK25 (25% amount of jack bean flour) added to the feed formulation with three replications. Tilapia were kept in a 50×50×40 aquarium for 60 days as many as 15 fish and fed with a frequency of 3 times a day at satiation. The results showed that the growth performance of tilapia fed with feed containing koro sword nut flour showed significantly different results (P<0.05) because it did not provide good growth performance such as final total biomass, final average weight, daily growth rate, specific growth rate, survival rate, feed conversion ratio, protein retention, fat retention, and intestinal morphometry showed abnormalities.
Keyword: growth, feed formulation, jack bean, nile tilapia

Judul: Evaluasi Penambahan Tepung Kacang Koro Pedang Canavalia ensiformis dalam Pakan Komersial terhadap Kecernaan Ikan Nila Oreochromis niloticus
Abstrak: Jack bean Canavalia ensiformis is a local raw material that is rarely used but has a high protein and carbohydrate content. The digestibility value is one of the requirements for a raw material to be used in fish feed. This study aimed to evaluate the dose of the addition of jack bean to commercial feed on the digestibility of red tilapia (Oreochromis niloticus). This study used a completely randomized design (CRD) with 4 treatments namely K0 (100% commercial feed), K25 (25% jack bean flour + 75% commercial feed), K50 (50% jack bean flour + 50% commercial feed), and K75 (75% jack bean flour + 25% commercial feed) each with three replicates. Fish were kept in an aquarium with a total of 12 fish for 35 days and feeding was carried out 3 times a day at satiation. The concentration of Cr₂O₃ as much as 0.5% in the feed acts as an indicator of digestibility. The results showed that the addition of raw jack bean flour to commercial feed at a dose of 25% gave a digestibility value in red tilapia which was not significantly different from the K0 (100% commercial feed) treatment (p<0.05)., Kacang koro pedang Canavalia ensiformis merupakan salah satu bahan baku lokal yang jarang dimanfaatkan namun memiliki kandungan protein dan karbohidrat tinggi. Nilai kecernaan menjadi salah satu syarat suatu bahan baku dapat digunakan pada pakan ikan. Penelitian ini bertujuan mengevaluasi dosis penambahan kacang koro pedang pada pakan komersial terhadap kecernaan ikan nila merah (Oreochromis niloticus). Penelitian menggunakan rancangan acak lengkap (RAL) dengan 4 perlakuan yaitu K0 (100% pakan komersial), K25 (25% tepung kacang koro pedang + 75% pakan komersial), K50 (50% tepung kacang koro pedang + 50% pakan komersial), dan K75 (75% tepung kacang koro pedang + 25% pakan komersial) masing-masing dengan tiga kali ulangan. Ikan dipelihara di dalam akuarium dengan jumlah ikan 12 ekor selama 35 hari dan pemberian pakan dilakukan 3 kali sehari secara at satiation. Konsentrasi Cr₂O₃ sebanyak 0,5% dalam pakan berperan sebagai indikator kecernaan. Hasil penelitian menunjukkan penambahan tepung kacang koro pedang pada pakan komersial dengan dosis 25% memberikan nilai kecernaan pada ikan nila merah yang tidak berbeda nyata dengan perlakuan kontrol (p<0,05).
Keyword: digestibility, feed, jack bean, nile tilapia

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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