Judul: Productivity of Maggot Black Soldier Fly on Different Live Media
Abstrak: Maggot merupakan larva dari lalat black soldier fly yang mengandung nutrisi yang cukup tinggi sehingga dapat dijadikan sebagai pakan alternatif bagi ternak. Budidaya maggot dapat dilakukan dengan menggunakan media yang mengandung bahan organik. Pemilihan media harus memperhatikan kandungan nutrisi yang dikandungnya karena berpengaruh terhadap produktivitas maggot yang dihasilkan. Penelitian ini bertujuan menganalisis produktivitas maggot dengan pengaruh media hidup yang berbeda. Penelitian ini menggunakan rancangan acak lengkap (RAL) dengan 3 perlakuan dan 4 ulangan dengan uji lanjut Duncan. Media yang diguanakan yaitu limbah rumah makan, ampas kelapa dan dedak padi. Peubah yang diamati adalah bobot, panjang, suhu media, kelembaban media dan pH media. Hasil penelitian menunjukkan bahwa penggunaan media hidup yang berbeda berpengaruh nyata (P<0,05) terhadap produktivitas maggot. Penggunaan media limbah rumah makan menghasilkan bobot maggot sebesar 3,07 kg dan panjang maggot 1,90 cm. Penggunaan media ampas kelapa menghasilkan bobot maggot sebesar 2,42 kg dan panjang maggot 1,40 cm. Penggunaan media dedak padi menghasilkan bobot maggot sebesar 2,05 kg dan panjang maggot 1,08 cm., Maggot is the larvae of the black soldier fly which contains high enough nutrients so that it can be used as an alternative feed for livestock. Maggot cultivation can be done using media containing organic matter. The selection of media must pay attention to the nutritional content it contains because it affects the productivity of the maggot produced. This study aims to analyze the productivity of maggot with the influence of different live media. This study use a completely randomized design (RAL) with 3 treatments and 4 replications with Duncan’s further test. The media used were restaurant waste, coconut dregs and rice bran. The observed variables were maggot weight, length, media temperature, media humidity and media pH. The results showed that the use of different live media had a significant (P<0,05) effect to maggot productivity. The use of restaurant waste media produces a maggot weight of about 3,07 kg and a maggot length of about 1,90 cm. The use of coconut dregs media resulted in a maggot weight of about 2,42 kg and a maggot length of about 1,40 cm. The use of rice bran media produces in a maggot weight of about 2,05 kg and a maggot length of about 1,08 cm.
Keyword: maggot, media, productivity

Judul: Influence of Various Organic Wastes on Growth Performance and Nutrient Composition of Black Soldier Fly Larvae (Hermetia illucens): A Meta-analysis
Abstrak: Black Soldier Fly (BSF) larvae (Hermetia illucens) atau maggot merupakan serangga yang berpotensi sebagai sumber pakan protein. Pertumbuhan dan komposisi nutrien maggot bergantung dengan substrat pertumbuhannya. Umumnya, substrat adalah limbah-limbah organik karena ketersediaannya yang melimpah dan murah. Penelitian ini bertujuan mengevaluasi pemanfaatan berbagai limbah sebagai substrat pertumbuhan maggot terhadap performa tumbuh dan kandungan nutrien pada maggot secara meta-analisis. Tahapan pertama pada metodei, database disusun dengan mengintegrasikan 47 studi dari 13 artikel jurnal yang telah dipublikasi. Artikel-artikel tersebut didapatkan dari beberapa database elektronik yaitu Science Direct dan Google Scholar. Substrat-substrat organik kemudian dikelompokkan menjadi 4 kelompok yaitu, limbah makanan, pakan, feses, dan yang lainnya (substrat-substrat yang tidak termasuk pada 3 kelompok sebelumnya). Kelompok-kelompok substrat tersebut kemudian dianalisis secara statistik menggunakan ANOVA dengan uji lanjut Duncan jika terdapat perbedaan yang signifikan. Hasil penelitian ini menunjukan bahwa substrat limbah makanan dan pakan memiliki persentase indeks reduksi limbah dan tingkat konversi limbah yang lebih tinggi dibandingkan dengan kelompok substrat feses dan lainnya (P<0.05). Kelompok substrat pakan menunjukan nilai jumlah panen yang lebih tinggi dibandingkan dengan substrat limbah makanan (P<0.05). Disamping itu, kandungan nutrien bahan kering, abu, protein kasar dan lemak kasar maggot tidak dipengaruhi secara nyata oleh variasi kelompok substrat yang digunakan. Sehinggga dapat disimpulkan, komposisi nutrien substrat mempengaruhi kecepatan performa tumbuh dan bobot panen maggot namun tidak mempengaruhi komposisi nutrien maggot., Black soldier fly (BSF) larvae (Hermetia illucens) is a potential protein source in animal feed. The development and nutrient composition of maggot depend on its substrate. Generally, substrates are organic wastes because of their abundant and inexpensive availability. The objective of this study was to evaluate the effects of various organic wastes as substrates on growth performance and nutrient composition of maggot across various studies by employing a meta-analysis method. The first of method, a database was developed by integrating data from 47 studies that derived from 13 articles. The articles were derived from several electronic databases such as Science Direct and Google Scholar. Organic substrates were categorized into four groups, i.e., food waste, animal feed, faeces, and other substrates (those which could not be included into the previous three groups). These groups were statistically analyzed by using analysis of variance and continued with the Duncan multiple range test to compare among different group means. The results showed that food waste and animal feed substrates had higher percentage of waste reduction index and conversion rate as compared to those of faeces and other substrates (P<0.05). Animal feed substrate had higher prepupal yield mass of maggot than that of food waste substrate (P<0.05). In regard to nutrient composition of the maggot, dry matter, ash, crude protein, and ether extract composition of the insect species were not influenced by the different substrates and revealed relatively similar values. In conclusion, a more nutritious substrate leads to a faster growth and a higher mass yield of maggot, but it does not alter nutrient composition of the insect.
Keyword: black soldier fly, bio-conversion, feed, organic by-product

Judul: Penggunaan Teorema Homeomorphy 2-Manifold dan Teorema Euler Poincare pada Torus 𝑇�� dan Simplicial Complex 𝐾��
Abstrak: Two dimensional topological spaces are said to be homeomorphic if they have the same topological invariant, where one of topological invariant used is an Euler characteristic. Homeomorphy 2-Manifold’s Theorem and Euler Poincare’s Theorem are used to distinguish two topological spaces. Homeomorphy 2-Manifold’s Theorem uses Euler characteristic to identify two dimensional topological spaces. Euler Poincare’s Theorem is an alternative way to find Euler characteristic with Betti number, which is topological invariant as well. The objective of this paper is to investigate the homeomorphism of torus 𝑇����� and simplicial complex 𝐾�����. Topological space torus and simplicial complex 𝐾����� have the same Euler characteristic, which is two. Based on Homeomorphy 2-Manifold’s Theorem topological space torus 𝑇����� and simplicial complex 𝐾����� is homeomorphic.
Keyword: simplicial, torus, Euler, homeomorphism, topology