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Journal : Berkala Perikanan Terubuk

POLA PENYERAPAN KUNING TELUR DAN PERKEMBANGAN ORGANOGENESIS PADA STADIA AWAL LARVA IKAN SENGGARINGAN (Mystus nigriceps) Taufik Budhi Pramono; Sri Marnani
Berkala Perikanan Terubuk Vol 37, No 1 (2009): Februari 2009
Publisher : Fakultas Perikanan dan Kelautan, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (696.198 KB) | DOI: 10.31258/terubuk.37.1.%p

Abstract

The observation was conducted to study the yolk absorption activity andmorphological development on the initial state of senggaringan (catfish) fishlarvae. Larvae used for this research were from the artificial spawning ofbroodstock, reared in fiber tank. The result showed that newly hatched larvae has3.02 mm ±0.14 total length and 1.1202 mm3 yolk volume. During yolk absorptionperiod, organogenesis development and length added also occurred. Larvaedevelopment occurred after hacthing involved the eye spot (23 hours, 1 minute),mouth opening (25 hours, 21 minutes) and pigmentation (50 hours, 5 minutes),.Organogenesis development and the total length increment improve, following theincrease of yolk absorption rate.
Potensi Pemanfaatan Daun Singkong (Manihot utillisima) Terfermentasi Sebagai Bahan Pakan Ikan Nila (Oreochromis sp) Emyliana Listiowati; Taufik Budhi Pramono
Berkala Perikanan Terubuk Vol 42, No 2 (2014): Juli 2014
Publisher : Fakultas Perikanan dan Kelautan, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (275.833 KB) | DOI: 10.31258/terubuk.42.2.%p

Abstract

ABSTRACTThe purpose of this studied to determine the effect of feeding raw flour made from fermented cassava leaves (Manihot utilissima) on the growth and food convertion ratio and its substitution percentage of feed in providing the best growth of Tilapia fish (Oreochromis sp.). An experimental method used a completely randomized design applying 5 treatments in quadruplicates. The treatments were different percentages of fish meal and cassava leaf in feed rations i.e. P1: 100% and 0%, P2: 75% and 25%, P3: 50% and 50%, P4: 25% and 75%, P5: 0% and 100%. The main parameters were absolute growth, specific growth, daily growth, feed efficiency. Water qualit y parameters were temperature, pH, and dissolved oxygen. Fermented cassava leaf flour (Manihot utilissima) in different percentages affected absolute growth rate, specific growth rate. However, feed convertion rate (FCR) of Tilapia fish (Oreochromis sp.) were not affected. Fermented cassava leaf flour at 25% enabled to provide the best growth and food convertion rate (FCR). Water quality parameters were in optimal conditions for Tilapia fish (Oreochromis sp.) fry.Keywords : growth; feed efficiency; Tilapia fish