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Determination of hatching performance, yolk-sac absorption, and larval growth rates in Abant trout (Salmo trutta abanticus), Brook trout (Salvelinus fontinalis), and their hybrids

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info:eu-repo/semantics/openAccess

Date

2023

Author

Sonay, Fatma Delihasan
Kavuk, Z.

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Citation

Sonay, F., & Kavuk, Z. (2023). Determination of Hatching Performance, Yolk-Sac Absorption, and Larval Growth Rates in Abant Trout (Salmo trutta abanticus), Brook Trout (Salvelinus fontinalis), and their Hybrids. Journal of the Hellenic Veterinary Medical Society, 74(1), 5177–5184. https://doi.org/10.12681/jhvms.28082

Abstract

In this study, hatching performance, yolk-sac absorption, and growth rates of Abant trout (Salmo trutta abanticus), brook trout (Salvelinus fontinalis), and their hybrids were investigated. In this context, relationships be-tween duration (days) and total larvae length, total larvae wet weight, dry larvae body weight and yolk-sac weights, and larval growth were determined. At the end of the study, eye pigmentation, hatching, and larval survival rates were defined as 99.50%, 97.68%, 98.97% for Abant trout, 87.35%, 68.97%, 71.54% for brook trout, 96.12%, 64.18%, 56.82%for S.t.a. female x S.f. male hybrid and 14.98%, 0.45%for S.f. female x S.t.a. male hybrid respectively.The results indicated that there were significant relationships between degree-day and length, total wet weight, dry larvae body weight, and dry yolk-sac weight in Abant trout, brook trout, and their hybrids. This relationship was demonstrated as decreasing in the yolk-sac and as increasing in others. As a result of crossing, it was observed that the hatching efficiency of hybrid (S.t.a.female xS.f.male) was similar to brook trout, and growth performance was similar to Abant trout. The results will help further studies and will contribute to the management practices of the stocks of Abant trout, brook trout, and their hybrids.

Source

Journal of the Hellenic Veterinary Medical Society

Volume

74

Issue

1

URI

https://doi.org/10.12681/jhvms.28082
https://hdl.handle.net/11436/8031

Collections

  • Scopus İndeksli Yayınlar Koleksiyonu [6023]
  • SUF, Su Ürünleri Yetiştiriciliği Bölümü Koleksiyonu [162]
  • WoS İndeksli Yayınlar Koleksiyonu [5260]



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