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Effect of water temperature on sex ratio and growth rate of juvenilePelteobagrus fulvidraco, P. vachelli and hybrids [P. fulvidraco (♀) × P.vachelli (♂)]

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In order to explore the effect of water temperature on sex ratio and growth rate, we reared the juvenilesof Pelteobagrus fulvidraco, Pelteobagrus vachelli and the hybrids from P. fulvidraco (♀) × P. vachelli (♂) at6 different water temperature conditions (20, 23, 26, 29, 32 and 34◦C) in this study. The results showedthe population of male and female fish at the ratio of 1:1 when the fish from three groups was culturedat water temperatures of 26, 29, 32 and 34◦C for 45 days. The analysis for the ratio between male andfemale reared at various temperatures suggests that the sex differentiation in P. fulvidraco, P. vachelli andthe hybrids was not temperature-dependent sex determination (TSD). Based on the mathematical rela-tionship between weight gain (WG) and water temperature, the maximum growth rate of P. fulvidraco,P. vachelli and the hybrids was achieved at 27.53, 28.36 and 28.40◦C, respectively. There is only verynegligible difference between temperatures for the highest weight gain determined through mathemat-ical modeling. However, weight gain determination shows comparatively higher growth rate at all testtemperature. We initially deduced that the hybrids from P. fulvidraco (♀) × P. vachelli (♂) have heterosis.Our results indicated that the hybrids were very suitable for commercial aquaculture.

Keywords:HybridYellow catfishWater temperatureSex ratioGrowth

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Informasi Detail

Judul Seri

Aquaculture Reports

No. Panggil

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Penerbit

: Elsevier., 2016

Deskripsi Fisik

Aquaculture Reports 3 (2016) 115–119

Bahasa

English

ISBN/ISSN

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Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

KIMIA

Info Detail Spesifik

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Pernyataan Tanggungjawab

Wati/Agus

Versi lain/terkait

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