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Title: | Evaluasi kualitas dan kecernaan kulit singkong, biji karet, kopra, biji kapuk, dan palm kernel meal difermentasi Saccharomyces cerevisiae pada juvenil ikan nila Oreochromis niloticus Evaluation of quality and digestibility of cassava peel, rubber seed, copra, cottonseed, and palm kernel meal fermented by Saccharomyces cerevisiae in juvenile of nile tilapia Oreochromis niloticus. |
Authors: | Suprayudi, Muhammad Agus Setiawati, Mia Asep El-Qusairi |
Keywords: | Bogor Agricultural University (IPB) local feedstuff fermentation digestibility |
Issue Date: | 2011 |
Publisher: | Bogor Agricultural University (IPB) |
Abstract: | Feed becomes the most expensive factor in freshwater aquaculture production. It often costs from 45% to 85% of total variable expensis, depending on its intensity of culture operation. The high price is caused by materials which used in this operation. The materials availability still rely on imports such as fish meal, soybean meal, and flour. This makes price of feedstuff is not competitive. Therefore, an alternative local’s feedstuffs which could potentially reduce or even replace imported feedstuff composition in diets is needed. However, the low quality of local’s feedstuffs nutrition make it difficult to developed. This low quality caused by high crude fiber content and the presence of anti-nutritional substances factor, so it needs to be processed first by fermentation methods. This study used five treatments, two factors, and one replicates. Fish used in this study were juvenile of nile tilapia Oreochromis niloticus which has weight about 16,26±2,43 grams. Diets given at satiation, three times a day. The feedstuffs used are cassava peel, rubber seed, cottonseed, copra, and (Palm Kernel Meal, PKM). The result of this study showed some enhancements in fish content. The fermentation by Saccharomyces cerevisiae can increase fish (test material) protein around 16,85%-31,11%, decrease crude fiber around 2,46%-31,65%, increase protein digestibility around 0,25%-11,7%, increase digestibility of energy around 4,29%-11,17% (except for digestibilty in the cassava peel) and also increase the digestibility of feedstuffs around 1,37%-61,19% in juvenile of nile tilapia O. niloticus. Pakan menyumbang sekitar 40-85% dalam komponen biaya produksi perikanan budidaya air tawar. Mahalnya harga pakan disebabkan oleh bahan baku yang digunakan masih mengandalkan impor untuk ketersediaannya seperti tepung ikan, bungkil kedelai, dan tepung terigu. Hal ini yang menyebabkan harga pakan tidak kompetitif. Oleh karena itu, diperlukan alternatif bahan baku pakan lokal (BBL) yang berpotensi mengurangi atau bahkan menggantikan komposisi bahan baku pakan impor dalam pakan. Akan tetapi rendahnya kualitas nutrisi BBL akibat tingginya kandungan serat kasar dan keberadaan zat faktor antinutrisi membuat BBL sulit dikembangkan. Oleh karena itu perlu dilakukan pengolahan terlebih dahulu, salah satunya dengan metode fermentasi. Penelitian ini menggunakan lima perlakuan, dua faktor, satu ulangan. Ikan uji yang digunakan pada penelitian ini adalah juvenil ikan nila Oreochromis niloticus yang memiliki bobot 16,26±2,43 gram. Pakan diberikan secara at satiation, tiga kali sehari. Bahan baku yang digunakan adalah kulit singkong, biji karet, biji kapuk, kopra, dan bungkil kelapa sawit (Palm Kernel Meal, PKM). Fermentasi oleh Saccharomyces cerevisiae mampu meningkatkan protein bahan uji antara 16,85-31,11% dan menurunkan serat kasar antara 2,46-31,65% serta meningkatkan kecernaan protein antara 0,25-11,7%, meningkatkan kecernaan energi antara 4,29-11,17% kecuali bahan uji kulit singkong dan juga mampu meningkatkan kecernaan bahan uji 1,37-61,19% pada juvenil ikan nila O. niloticus. |
URI: | http://repository.ipb.ac.id/handle/123456789/51071 |
Appears in Collections: | UT - Aquaculture |
Files in This Item:
File | Description | Size | Format | |
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C11aeq.pdf Restricted Access | Full Text | 998.12 kB | Adobe PDF | View/Open |
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