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• W1668372227 abstract "<p>Culture of patin <em>Pangasius hypophthalmus </em>especially larval rearing very depends on the supply of natural food as energy source. <em>Artemia</em> is the main natural food for fish larvae as a starter food, but its price is high. To reduce production cost, farmers tend to reduce the feeding frequency and shorten the <em>Artemia </em>feeding period. Altering feeding regime however may reduce fry quality. This relate to the availability of digestive enzymes. The objective of this study was to examine digestive enzymes activity in patin larvae fed with different feeding regime. By shorten feeding period with <em>Artemia</em> to 2-4 days and <em>Tubifex</em>,substitution, the enzymes activity of protease, lipase and amylase were revealed similar pattern The enzymes activity tends to increase and reach the peak at day 7 , and decrease later on until day 15 after hatching. Survival rate of fish were varied for each treatment, and the highest survival rate was obtained when larvae were fed by <em>Artemia </em>for 8 days. Blood worm were not fully digested by patin larvae at early stage.</p> <p>Keywords: enzyme, digestion, patin, <em>Pangasius hypophthalmus</em></p> <p> </p> <p>ABSTRAK</p> <p>Proses budidaya ikan patin, <em>Pangasius hypophthalmus</em> terutama pembenihan sangat tergantung oleh ketersediaan pakan alami sebagai sumber energinya. <em>Artemia</em> merupakan pakan alami yang banyak diberikan pada saat larva ikan mulai makan, namun harganya relatif tinggi. Untuk menekan biaya produksi, petani ikan patin cenderung mengurangi frekuensi pemberian <em>Artemia </em>dan mempersingkat waktu pemberiannya. Penggeseran jadwal ini diduga mengakibatkan penurunan kualitas benih ikan patin yang dihasilkan yang berhubungan dengan kesiapan enzim pencernaannya. Penelitian ini dilakukan untuk mengetahui aktivitas enzim pada larva ikan patin dengan jadwal pemberian pakan yang berbeda. Dengan memotong waktu pemberian <em>Artemia</em> 2 - 4 hari dan disubstitusi dengan <em>Tubifex</em>, aktifitas enzim protease, lipase dan amilase pada larva ikan patin, memiliki pola yang sama. Aktifitas enzim cenderung meningkat dan mencapai puncak pada umur 7 hari, selanjutnya terus menurun sampai larva berumur 15 hari. Kelangsungan hidup ikan selama penelitian berbeda-beda untuk setiap perlakuan dengan nilai tertinggi dicapai oleh larva yang diberi pakan <em>Artemia</em> sampai berumur 8 hari. Larva ikan patin belum siap sepenuhnya untuk menerima pakan berupa cacing sutera sejak stadia awalnya.</p> <p>Kata kunci: Enzim, Pencernaan, Patin, <em>Pangasius hypophthalmus</em></p>" @default.
• W1668372227 created "2016-06-24" @default.
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• W1668372227 date "2007-01-01" @default.
• W1668372227 modified "2023-10-16" @default.
• W1668372227 title "Development of Digestive Enzyme of Patin Pangasius hypohthalmus Larvae" @default.
• W1668372227 doi "https://doi.org/10.19027/jai.5.41-49" @default.
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