Abstract
Research on larval production of Parrot red rainbow fish Glassolepis incisus has been done by using different numbers of raffia’s rope as substrats for eggs attachment. A raffia’s rope substrats of different plys concentrations namely A 360 plys, B 720 plys, and C 1080 plys were used. The spawning was carried out during 30 days, and larval feeding was given twice a day with frozen Chironomus larvae in ad satiation rate. The results showed that highest spawning frequencies was found in treatment A (360 plys) with 24 times, and then treatment B (720 plys) with 23 times, and treatment C (1080 plys) with 18 times. Highest eggs production were found on treatment A, B and C respectively at 1154 eggs, 892 eggs, and 691 eggs, respectively. Whiles the hatching rate were found that the treatment A = 92 %, treatment B= 85 % and treatment C= 94 %. The Treatment A overall was the best treatment in this experiment. Keyword: Larval, Parrot red rainbow, raffia rope, spawning
Highlights
Research on larval production of Parrot red rainbow fish Glassolepis incisus has been done by using different numbers of raffia’s rope as substrats for eggs attachment
The spawning was carried out during 30 days, and larval feeding was given twice a day with frozen Chironomus larvae in ad satiation rate
The results showed that highest spawning frequencies was found in treatment A (360 plys) with 24 times, and treatment B (720 plys) with 23 times, and treatment C (1080 plys) with 18 times
Summary
Wadah pemijahan menggunakan bak traso dari bahan beton berdimensi 51x51x50 cm volume air 78 liter dengan tinggi air 30 cm. Perbandingan jantan dan betina adalah 1:1 secara berpasangan. Tahapan persiapan wadah pemeliharaan dan pemijahan induk terdiri dari perendaman dengan Methilene blue (MB), pengeringan, pencucian, penjemuran, pengisian air dan pemberian aerasi. Wadah inkubasi diletakan diluar ruangan (outdor) tanpa pemberian aerasi. Untuk wadah inkubasi telur menggunakan bak kontainer plastik dimensi 31x20x20 cm volume air 6,8 liter dengan ketinggian air 11 cm. Tahapan persiapan wadah inkubasi telur terdiri dari perendaman dengan Methilene blue (MB), pengeringan, pencucian, penjemuran dan pengisian air. Air yang digunakan berasal dari tandon yang telah diendapkan selama 24 jam kemudian disaring dan diaerasi
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