Journals / Turkish Journal of Fisheries and Aquatic Sciences / 2012 / Cilt: 12 - Sayı: 4

Kuzeey Turna balığı (Esox lucius L. 1758) larvasının proteolitik aktivitesi üzerine bir önçalışma

A preliminary study on protease activity of the northern pike (Esox lucius L. 1758) larvae

Pages
947–950
DOI
—
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AI Insight
⚡ TL;DR(Too Long; Didn't Read)

In conclusion, to prevent tissue breakdown, larvae should be fed immediately just after yolk sac absorption at the DAH 8 at 13°C under controlled conditions.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:The proteolitic activity of northern pike prelarvae was measured in yolk sac stage to reveal the critical first feeding time at relatively high incubation temperature.
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Key Findings & Data:The differences observed among protease activities of larvae from day after hatching (DAH) 0 to 12 were statistically significant (P<0.05).
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Conclusion & Impact:In conclusion, to prevent tissue breakdown, larvae should be fed immediately just after yolk sac absorption at the DAH 8 at 13°C under controlled conditions.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

The proteolitic activity of northern pike prelarvae was measured in yolk sac stage to reveal the critical first feeding time at relatively high incubation temperature. The differences observed among protease activities of larvae from day after hatching (DAH) 0 to 12 were statistically significant (P<0.05). Protease activities of larvae remained slightly increased from DAH 0 to DAH 5. A sudden raise in protease activities of larvae were observed from the DAH 6 to the DAH 8. Moreover, the conspicuous increase in protease activities of pike larvae was determined at the DAH 8 (595.22±9.07 U/mg protein). All starving larvae died four days after yolk sac consumption. In conclusion, to prevent tissue breakdown, larvae should be fed immediately just after yolk sac absorption at the DAH 8 at 13°C under controlled conditions.

Özet

Nispeten yüksek inkübasyon sıcaklığında kuluçkalanan Turna balığı pre-larvalarının proteolitik aktivitesi, besin keseli dönemden kritik ilk yem alma noktasına kadar ölçülmüştür. Yumurta açılım günü (DAH) olan 0. gün ile 12. günler arasında larvaların proteolitik aktiviteleri arasında istatistiksel olarak fark bulunmuştur (P<0,05). Turna larvalarının proteolitik aktivitesi DAH 0da DAH 5e kadar yavaşça yükselmiş, daha sonra DAH 6dan DAH 8e kadar ani bir yükseliş görülmüştür. Buna ek olarak, DAH 8de bariz bir pik gözlenmiştir (595,22±9,07 U/mg protein). Lavaların tümü, besin kesesinin tükenmesini takiben 4. günde açlıktan ölmüştür. Sonuç olarak, doku yıkımını önlemek amacıyla, larvalar 13°Cdeki kuluçkalama şartlarında, DAH 8de besin kesesinin tükenmesini takiben hemen ilk yem verilmelidir.

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Cite This Article

GÖKÇEK, C. K., NAZ, M., SZABO, T., URBANYI, B. (2012). Kuzeey Turna balığı (Esox lucius L. 1758) larvasının proteolitik aktivitesi üzerine bir önçalışma. Turkish Journal of Fisheries and Aquatic Sciences, Cilt: 12 - Sayı: 4, 947–950. https://ajindex.com/articles/408134

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